ASSP Power Management Applications (Rechargeable battery) DC/DC C

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ASSP Power Management Applications (Rechargeable battery) DC/DC C

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DS04-27247-3E
ASSP Power Management Applications (Rechargeable battery)
DC/DC Converter Synchronous Rectification charging Li-ion battery
MB39A119
DESCRIPTION
MB39A119 N-ch drive synchronous rectification type DC/DC converter using pulsewidth modulation (PWM) type that charge Li-ion battery from cell cells suitable down-conversion. This integrates built-in comparator voltage detection adapter switches power supply adapter battery automatically, enabling supply system. addition, constant voltage control state detection function built which prevents mis-detecting full charge. MB39A119 provides wide range power supply voltage standby current, high efficiency, making ideal built-in charge device products such notebook
FEATURES
High efficiency (Max) High-frequency operation (Max) Built-in time control function Built-in voltage detection function adapter (ACOK, XACOK terminal) Preventing mis-detection full charge constant voltage control state detection function (CVM terminal) Built-in constant current control circuits Analog control constant current value possible INE1, INE2 terminal) Built-in output stage N-ch synchronous rectification Built-in charge stop function input voltage Output voltage setting accuracy 0.74 (Ta= Built-in high accuracy charge current detection amplifier input voltage difference with Voltage gain 24.5 (V/V) Built-in high accuracy input current detection amplifier input voltage difference with Voltage gain (V/V) Arbitrary output voltage external resistor standby mode, output voltage setting resistor made open prevent inefficient current loss Quiescent current (Typ) Standby current (Typ) Package QFN28
Copyright©2005-2008 FUJITSU MICROELECTRONICS LIMITED rights reserved 2008.6
MB39A119
ASSIGNMENT
(TOP VIEW)
-INC1 +INC1 ACIN ACOK +INE1
PGND
VREF OUTD -INE3
OUTC2
(LCC-28P-M12)
Note Connect IC's radiation board bottom side potential GND.
FB123
-INE1
+INE2
+INC2
-INC2
-INE2
XACOK
OUT-1
OUT-2
DS04-27247-3E
MB39A119
DESCRIPTION
Name -INC1 INC1 ACIN ACOK INE1 -INE1 OUTC2 INC2 -INC2 INE2 INE2 FB123 -INE3 OUTD Description Power supply terminal reference voltage control circuit. Input current detection amplifier (Current Amp1) input terminal. Input current detection amplifier (Current Amp1) input terminal. adapter voltage detection block Comp.) input terminal. adapter voltage detection block Comp.) output terminal. ACOK when ACIN ACOK Hi-Z when ACIN ACOK Hi-Z when Constant voltage control state detection block Comp.) output terminal. Error amplifier (Error Amp1) non-inverted input terminal. Error amplifier (Error Amp1) inverted input terminal. Charge current detection amplifier (Current Amp2) output terminal. Charge current detection amplifier (Current Amp2) input terminal. Charge current detection amplifier (Current Amp2) input voltage detection comparator Comp.) input terminal. Error amplifier (Error Amp2) non-inverted input terminal. Error amplifier (Error Amp2) inverted input terminal. Error amplifier (Error Amp1, output terminal. Error amplifier (Error Amp3) inverted input terminal. This terminal Hi-Z prevent loss current through output voltage setting resistor when standby mode. OUTD Hi-Z when OUTD when Soft-start capacitor connection terminal. Triangular wave oscillation frequency setting resistor connection terminal. Reference voltage output terminal. Ground terminal. Power supply control terminal DC/DC converter block. adapter voltage detection block Comp.) output terminal. XACOK Hi-Z when ACIN XACOK when ACIN XACOK Hi-Z when Ground terminal. External synchronous rectification side gate drive output terminal. Bias output terminal output circuit. External main side source conneciton terminal. External main side gate drive output terminal. Boot strap capacitor connection terminal. capacitor connected between terminal terminal.
VREF XACOK PGND OUT-2 OUT-1
DS04-27247-3E
MB39A119
BLOCK DIAGRAM
ACIN Comp.> Side Only <Current Amp1> <Error Amp1> -INE1 +INE1 -INE2 OUTC2 <Current Amp2> +INC2 -INC2 +INE2 FB123
ACOK
XACOK
Comp.> Comp.>
+INC1 -INC1
Reg.
-INC2 (VO)
<PWM Comp.> Drive logic -2.5 -1.5
Drv-1
OUT-1
Drv-2
OUT-2
<Error Amp2>
time Control PGND UVLO, release
<UVLO> <Error Amp3> OUTD Slope Control
VCCUVLO VBUVLO VREFUVLO
-INE3
<SOFT> VREF <Over Current Det.> +INC2 -INC2 (Vo) <OSC> OUTC2 <Synchronous Cnt.> bias <REF> VREF VREF
<CTL>
DC/DC ON/OFF
DS04-27247-3E
MB39A119
ABSOLUTE MAXIMUM RATINGS
Parameter Power supply voltage terminal input voltage Control input voltage Symbol VCTL VINE Input voltage VINC1 VINC2 OUTD terminal output voltage ACIN input voltage ACOK terminal output voltage XACOK terminal output voltage terminal output voltage Output current Power dissipation Storage temperature VOUTD VACIN VACOK VXACOK VCVM IOUT TSTG Condition terminal terminal terminal INE1, INE2, INE1, INE2, INE3 terminal INC1, INC1 terminal INC2, INC2 terminal OUTD terminal ACIN terminal ACOK terminal XACOK terminal terminal Rating 4400*1,*2 1900*1,*3 Unit Unit
packages mounted dual-sided epoxy board 10cm) With connection exposed with thermal via. With connection exposed without thermal via. WARNING: Semiconductor devices permanently damaged application stress (voltage, current, temperature, etc.) excess absolute maximum ratings. exceed these ratings.
DS04-27247-3E
MB39A119
RECOMMENDED OPERATING CONDITIONS
Parameter Power supply voltage terminal input voltage Reference voltage output current Bias output current Symbol IREF VINE Input voltage VINC1 VINC2 Input voltage difference OUTD terminal output voltage OUTD terminal output current terminal input voltage ACIN input voltage ACOK terminal output voltage XACOK terminal output voltage terminal output voltage Peak output current Oscillation frequency Timing resistor Soft-start capacitor terminal capacitor Bias output capacitor Reference voltage output capacitor Operating ambient temperature DVINC VOUTD IOUTD VCTL VACIN VACOK VXACOK VCVM IOUT fOSC CREF Condition terminal terminal VREF terminal terminal INE1, INE2, INE1, INE2, INE3 terminal INC1, -INC1 terminal INC2, -INC2 terminal Current detection voltage range OUTD terminal OUTD terminal terminal ACIN terminal ACOK terminal XACOK terminal terminal Duty (t=1/fOSC Duty) terminal terminal terminal terminal VREF terminal Value -1200 0.22 +1200 1000 Unit
WARNING: recommended operating conditions required order ensure normal operation semiconductor device. device's electrical characteristics warranted when device operated within these ranges. Always semiconductor devices within their recommended operating condition ranges. Operation outside these ranges adversely affect reliability could result device failure. warranty made with respect uses, operating conditions, combinations represented data sheet. Users considering application outside listed conditions advised contact their representatives beforehand.
DS04-27247-3E
MB39A119
ELECTRICAL CHARACTERISTICS
(VCC VREF Parameter Output voltage Reference voltage block [REF] Input stability Load stability Short-circuit output current Threshold voltage Hysteresis width Under voltage Threshold voltage lockout protection circuit block Hysteresis width [UVLO] Threshold voltage Hysteresis width Soft-start block [SOFT] Triangular wave oscillator block [OSC] Charge current Oscillation frequency Frequency temperature stability Input offset voltage Input bias current Voltage gain Error amplifier block [Error Amp1] Frequency bandwidth Output voltage Output source current Output sink current Standard design value (Continued) Symbol VREF1 VREF2 Line Load VTLH VTHL VTLH VTHL VTLH VTHL Conditions VREF VREF VREF VREF VREF FB123 FB123 Value 4.963 4.95 5.000 5.00 5.037 5.05 Unit
fosc f/fdt VFBH VFBL ISOURCE ISINK
100* 1.2*
DS04-27247-3E
MB39A119
(VCC VREF Parameter Input offset voltage Input bias current Error amplifier block [Error Amp2] Voltage gain Frequency bandwidth Output voltage Output source current Output sink current Threshold voltage Voltage gain Error amplifier block [Error Amp3] Frequency bandwidth Output voltage Output source current Output sink current OUTD terminal leak current OUTD terminal output resistance Current detection voltage Symbol VFBH VFBL ISOURCE ISINK VTH1 VTH2 VFBH VFBL ISOURCE ISINK ILEAK VOUTC1 VOUTC2 IINC1 Input current Frequency bandwidth Output voltage Output source current Output sink current Standard design value (Continued) DS04-27247-3E IINC2 VOUTCH VOUTCL ISOURCE ISINK FB123 FB123 FB123 Conditions Value 100* 1.2* Unit
FB123
4.179 4.200 4.221 4.169 4.200 4.231 100* 1.2* 3.0* 0.04 -1.2 2.575 0.575
FB123 FB123 OUTD OUTD
INC1 INC1 2.425 INC1 INC1 0.425 INC1 INC1 24.25 INC1 INC1 INC1 INC1 INC1 INC1 -INE1 -INE1
Voltage gain Current detection amplifier block [Current Amp1] Input offset voltage
25.75 -0.6
MB39A119
(VCC VREF Parameter Symbol VOUTC1 VOUTC2 VOUTC3 VOUTC4 Voltage gain Current detection amplifier block [Current Amp2] Input offset voltage I+INCH Input current I-INCH IINCL Frequency bandwidth Output voltage Output source current Output sink current comparator block [PWM Comp.] Output block [Drv-1, Under input voltage detection comparator block Comp.] VOUTCH VOUTCL ISOURCE ISINK Threshold voltage VTLH VTHL Conditions INC2 INC2 INC2 INC2 INC2 INC2 INC2 INC2 Value 2.38 0.44 2.24 0.30 2.48 0.52 2.45 24.5 +1.5 0.1* -200 3.0* 0.04 -1.2 12.8 12.7 2.58 0.60 2.66 0.70 Unit
Current detection voltage
INC2 INC2 23.76 INC2 INC2 INC2 INC2 INC2 INC2
25.24 +4.5 -0.6 13.0 12.9
INC2 INC2 -1.5 -300 OUTC2 OUTC2 Duty cycle Duty cycle 100% 12.6 12.5
Output resistance Threshold voltage
OUT-1, OUT-2 -100 OUT-1, OUT-2 -INC2 12.6 -INC2 12.6
Hysteresis width
Standard design value (Continued)
DS04-27247-3E
MB39A119
(Continued) (VCC VREF Parameter Overcurrent detection block [Over Current Det.] Symbol Conditions Value Unit
Threshold voltage
VTLH
-INC2 12.6
12.75
12.8
12.85
Threshold voltage Hysteresis width adapter voltage detection block Comp.] ACOK terminal output leak current ACOK terminal output resistance XACOK terminal output leak current XACOK terminal output resistance Constant voltage control state detection block Comp.] Threshold voltage Hysteresis width terminal output leak current terminal output resistance threshold voltage
VTLH VTHL ILEAK ILEAK VTLH VTHL ILEAK VTLH VTHL VTLH VTHL Load VOFF ICTLH ICTLL ICCS
ACOK ACOK XACOK XACOK operating state standby state
2.056 1.959 2.55 2.50 0.35 0.25
2.12 2.02 2.7* 2.6* 0.1* 2.55 0.05
2.184 2.081 2.65 2.60 0.45 0.35
Synchronous rectification Hysteresis width control block [Synchronous Light load detection threshold voltage Cnt.] Hysteresis width Bias voltage block [VB] Output voltage Load stability input voltage Input current General Standby current Power supply current
Control block [CTL]
Standard design value DS04-27247-3E
MB39A119
TYPICAL CHARACTERISTICS
Power Supply Current Power Supply Voltage Power supply current (mA) Reference voltage VREF
Reference Voltage Power Supply Voltage
VREF
Power supply voltage
Power supply voltage
Reference Voltage Load Current Reference voltage VREF
Reference Voltage Operating Ambient Temperature
5.08
Reference voltage VREF
5.06 5.04 5.02 5.00 4.98 4.96 4.94 4.92
Load current IREF (mA)
Operating ambient temperature Error Amplifier Threshold Voltage Operating Ambient Temperature Error amplifier threshold voltage Reference voltage VREF
4.25 4.24 4.23 4.22 4.21 4.20 4.19 4.18 4.17 4.16 4.15
Terminal Current, Reference Voltage Terminal Voltage terminal current ICTL (µA)
1000 ICTL VREF VREF
terminal voltage VCTL
Operating ambient temperature (Continued)
DS04-27247-3E
MB39A119
Triangular Wave Oscillation Frequency Operating Ambient Temperature Triangular wave oscillation frequency fOSC (kHz)
Triangular Wave Oscillation Frequency Timing Resistor Triangular wave oscillation frequency fOSC (kHz)
10000
1000
1000
Operating ambient temperature
Timing Resistor
Error Amplifier Gain, Phase Frequency (ERR1,
-135 -180 -225
Phase (degree)
Gain (dB)
(13) (12)
Error Amp1 (Error Amp2)
100k
Frequency (Hz)
Error Amplifier Gain, Phase Frequency (ERR3)
-135 -180 -225
Phase (degree)
Gain (dB)
Error Amp3
100k
Frequency (Hz) (Continued)
DS04-27247-3E
MB39A119
(Continued) Current Detection Amplifier Gain, Phase Frequency
50.0 40.0 30.0 20.0 10.0 -10.0 -20.0 -30.0 -40.0 -50.0 -135 -180 -225 +INC1 -INC1 -INE1
Phase (degree)
Gain (dB)
Current Amp1 18.95
100k
Frequency (Hz)
Current Detection Amplifier Gain, Phase Frequency
50.0 40.0 30.0 20.0 10.0 -10.0 -20.0 -30.0 -40.0 -50.0 -135 -180 -225
Phase (degree)
Gain (dB)
-INC2
+INC2
24.5
OUTC2
Current Amp2 12.6 12.55
100k
Frequency (Hz)
Power Dissipation Operating Ambient Temperature
5000 QFN-24 (with thermal via)
Power dissipation (mW)
4500 4400 4000 3500 3000 2500 2000 1900 1500 1000
QFN-24 (without thermal via)
Operating ambient temperature
DS04-27247-3E
MB39A119
FUNCTION DESCRIPTION
DC/DC Converter Block
Reference voltage block (REF) reference voltage circuit uses voltage supplied from terminal (pin generate temperature compensated, stable voltage (5.0 Typ) used reference power supply voltage IC's internal circuitry. This block also used obtain load current maximum from reference voltage VREF terminal (pin Triangular wave oscillator block (OSC) triangular wave oscillator block built-in capacitor frequency setting generates triangular wave oscillation waveform connecting triangular wave oscillation frequency setting resistor with terminal (pin triangular wave input comparator circuits Error amplifier block (Error Amp1) This amplifier detects output signal from current detection amplifier (Current Amp1) compares this +INE1 terminal (pin outputs control signal used controlling charge current. addition, arbitrary loop gain connecting feedback resistor capacitor between FB123 terminal (pin -INE1 terminal (pin providing stable phase compensation system. Error amplifier block (Error Amp2) This amplifier detects output signal from current detection amplifier (Current Amp2) compares this +INE2 terminal (pin outputs control signal used controlling charge current. addition, arbitrary loop gain connecting feedback resistor capacitor between FB123 terminal (pin -INE2 terminal (pin providing stable phase compensation system. Error amplifier block (Error Amp3) This error amplifier (Error Amp3) detects output voltage from DC/DC converter outputs control signal. External output voltage setting resistors connected error amplifier inverted input terminal desired level output voltage from cell cells. addition, arbitrary loop gain connecting feedback resistor capacitor from FB123 terminal (pin -INE3 terminal (pin error amplifier, enabling stable phase compensation system. Current detection amplifier block (Current Amp1) current detection amplifier (Current Amp1) detects voltage drop which occurs between both ends output sense resistor (RS2) flow adapter current, using +INC1 terminal (pin -INC1 terminal (pin adapter current control signal amplified times output inverse input terminal Error Amp1 through internal This amplifier cannot detecting charge current. Current detection amplifier block (Current Amp2) current detection amplifier (Current Amp2) detects voltage drop which occurs between both ends output sense resistor (RS1) flow charge current, using +INC2 terminal (pin -INC2 terminal (pin signal amplified 24.5 times output OUTC2 terminal (pin comparator block (PWM Comp.) comparator circuit voltage-pulse width converter controlling output duty error amplifiers (Error Amp1 Error Amp3) depending their output voltage. comparator circuit compares with either voltages between triangular wave voltage generated triangular wave oscillator error amplifier output voltage, turns main side output transistor DS04-27247-3E
MB39A119
turns synchronous rectification side output transistor, during interval which triangular wave voltage lower than error amplifier output voltage. Output block (Drv-1, output circuit uses CMOS configuration capable driving external N-ch both main side synchronous rectification side. (10) Control block (CTL) Setting terminal (pin level places standby mode. function table Power (Standby) (Active) OUTD Hi-Z
(11) Bias voltage block (VB) Bias voltage block outputs (Typ) power supply output circuit setting bootstrap voltage. (12) time control block (Off time Control) When MB39A119 operates high on-duty, voltage difference both ends boot strap capacitor decreasing gradually. such case, time control block charges with compulsorily generating time (0.3 Typ) (13) Overcurrent detection block (Over Current Det.) Overcurrent detection block detects (Typ) more potential difference between +INC2 terminal (pin -INC2 terminal (pin When excessive current flows charge direction load-sudden change, determines overcurrent, makes terminal (pin level, makes duty After finishing overcurrent, MB39A119 restarts with soft-start operation. (14) Synchronous rectification control block (Synchronous Cnt.) terminal (pin (Typ) compared. Output OUT-2 terminal (pin synchronous rectification side drive soft-start fixed level. Output OUTC2 terminal current detection amplifier block (Current Amp2) (pin (Typ) compared, output OUT-2 terminal (pin synchronous rectification side drive fixed level light-load.
DS04-27247-3E
MB39A119
Protection Function
Under voltage lockout protection circuit block (VREF-UVLO) momentary decrease internal reference voltage (VREF) cause malfunctions control resulting breakdown degradation system. prevent such malfunction, under voltage lockout protection circuit detects internal reference voltage drop fixes OUT-1 terminal (pin OUT-2 terminal (pin level. system restores voltage supply when internal reference voltage reaches threshold voltage under voltage lockout protection circuit. Protection circuit (VREF-UVLO) operation function table When UVLO operating (VREF voltage lower than UVLO threshold voltage) logic following terminal fixed. OUTD OUT-1 OUT-2 Hi-Z
Under voltage lockout protection circuit block (VCC-UVLO, VB-UVLO) transient state momentary decrease power supply voltage, which occurs when bias voltage (VB) output circuit turned cause malfunctions control resulting breakdown degradation system. prevent such malfunction, under voltage lockout protection circuit detects bias voltage drop fixes OUT-1 terminal (pin OUT-2 terminal (pin level. system restores voltage supply when power supply voltage internal reference voltage reaches threshold voltage under voltage lockout protection circuit. Protection circuit (VCC-UVLO, VB-UVLO) operation function table When UVLO operating (VCC voltage voltage lower than UVLO threshold voltage) logic following terminal fixed. OUT-1 OUT-2
Under input voltage detection comparator block Comp.) terminal (pin voltage -INC2 terminal (pin voltage compared, voltage lower than battery voltage +0.1 (Typ) fixes OUT-1 terminal (pin OUT-2 terminal (pin level. system restores voltage supply when input voltage reaches threshold voltage under input voltage detection comparator. Protection circuit Comp.) operation function table When under input voltage detected (Input voltage lower than Comp. threshold voltage) logic following terminal fixed. OUT-1 OUT-2
DS04-27247-3E
MB39A119
Detection Functions
adapter voltage detection block Comp.) When ACIN terminal (pin voltage lower than (Typ) adapter voltage detection block Comp.) outputs "Hi-Z" level ACOK terminal (pin outputs level XACOK terminal (pin When terminal (pin level, ACOK terminal (pin XACOK terminal (pin fixed "Hi-Z" level. adapter detection function table logic following terminal fixed according connection state adapter. ACIN ACOK XACOK Hi-Z Hi-Z
Constant voltage control state detection block Comp.) When Comp. detects that FB123 terminal (pin voltage error amplifier (Error Amp3) output terminal becomes (Typ) less, level output constant voltage control state detection block output terminal terminal (pin Charge control state function table Error Amp3 output (FB123) Hi-Z Status Constant current control Constant voltage control
DS04-27247-3E
MB39A119
CONSTANT CHARGING VOLTAGE CURRENT OPERATION
MB39A119 DC/DC converter with pulse width modulation method (PWM method) output voltage control loop, output voltage DC/DC converter detected, Error Amp3 compares internal reference voltage DC/DC converter output output controlled signal. charging current control loop, voltage drop generated both ends charging current sense resistor (RS1) sensed +INC2 terminal (pin -INC2 terminal (pin Current Amp2, signal output OUTC2 terminal (pin which amplified 24.5 times. Error Amp2 compares OUTC2 terminal (pin voltage, which output Current Amp2, +INE2 terminal (pin output control signal, regulates charging current. adapter current control loop, voltage drop generated both ends adapter current sense resistor (RS2) sensed +INC1 terminal (pin -INC1 terminal (pin Current Amp1, signal output -INE1 terminal (pin which amplified times. Error Amp1 compares -INE1 terminal (pin voltage, which output Current Amp1, +INE1 terminal (pin output controlled signal, limits charging current adapter current exceed setting value. comparator compares triangular wave smallest terminal voltage among Error Amplifier output voltage (Error Amp1 Error Amp3) triangular wave voltage generated triangular wave oscillator. When triangular wave voltage smaller than error amplifier output voltage, main side output transistor turned synchronous rectification side output transistor turned off.
DS04-27247-3E
MB39A119
SETTING CHARGE VOLTAGE
charge voltage (DC/DC output voltage) connecting external output voltage setting resistors -INE3 terminal (pin sure select resistor value that allows ignore onresistance internal connected OUTD terminal (pin 16). Battery charge voltage INE3
-INE3
<Error Amp3>
OUTD
SETTING CHARGE CURRENT
charge current value analog voltage value +INE2 terminal (pin Charge current formula Ichg INE2 24.5
Battery charge current setting voltage INE2 INE2 24.5 Ichg recommended that filter should connected input terminal Current Amp2 shown below order reduce switching noise increase charge current accuracy.
Ichg
0.22 0.22
+INC2 -INC2
<Current Amp2> 24.5
DS04-27247-3E
MB39A119
SETTING INPUT CURRENT
input limit current value analog voltage value +INE1 terminal (pin Input current formula Input current setting voltage INE1 INE1 INE1
SETTING OVERCURRENT DETECTION VALUE
overcurrent detected when voltage difference more than (Typ) between +INE2 terminal (pin voltage -INE2 terminal (pin voltage. Charge overcurrent detection value Iocdet
Charge current overcurrent detection value value (example) +INE2 Ichg
OCDet
SETTING TRIANGULAR WAVE OSCILLATION FREQUENCY
triangular wave oscillation frequency timing resistor (RT) connected terminal (pin Triangular wave oscillation frequency fOSC 19500 fosc (kHz)
DS04-27247-3E
MB39A119
SETTING SOFT-START TIME
prevent rush current start-up soft-start time connecting soft-start capacitor (CS) terminal (pin When terminal (pin level started (VCC UVLO threshold voltage) external soft-start capacitor (CS) connected terminal (pin charged duty depends comparator output, which compares FB123 terminal (pin voltage triangular wave oscillator output voltage. During soft-start, FB123 terminal (pin14) voltage increases with voltage terminal (pin diode voltage. Therefore, output voltage DC/DC converter current increase output duty proportion rise terminal (pin voltage. duty affected ramp voltage FB123 terminal (pin until output voltage Error reaches DC/DC converter loop controlled voltage. Soft-start time obtained from following formula. Soft-start time (time output duty 0.13 (µF)
Soft-start timing chart
FB123
FB123
OUT-1
OUT-1
Error Amp3 threshold voltage
DS04-27247-3E
MB39A119
TRANSIENT RESPONSE LOAD-STEP
constant voltage control loop constant current control loop independent. With load-step, these control loops change. battery voltage current overshoot generated delay time control loop when mode changes. delay time determined phase compensation constant. When battery removed charge control switched from constant current control constant voltage control, charging voltage does overshoot generating period controlled with high duty output setting voltage. excessive voltage applied battery because battery connected. When battery connected charge control switched from constant voltage control constant current control, charging current does overshoot generating period controlled with high duty output setting voltage. battery pack manufacturer Japan thinks problem current overshoot 10ms less. Operation step-load
Error Amp3 Output
Error Amp2 Output
Error Amp2 Output
Error Amp3 Output
Constant Current
Constant Voltage
Constant Current
Battery Voltage
Battery Current
When charge control switches from constant current control constant voltage control, voltage does overshoot generating period controlled with high duty output setting voltage.
battery pack manufacturer Japan thinks problem current overshoot 10ms less.
DS04-27247-3E
MB39A119
ADAPTER DETECTION FUNCTION
When ACIN terminal (pin voltage lower than (Typ) adapter voltage detection block Comp.) outputs "Hi-Z" level ACOK terminal (pin outputs level XACOK terminal (pin When terminal (pin level, ACOK terminal (pin XACOK terminal (pin fixed "Hi-Z" level. adapter presence presence adapter easily detected because signal output from ACOK terminal (pin microcomputer etc. this case, terminal (pin level, become standby state (ICC Typ)
Connection example detecting adapter presence
adapter ACIN Comp.>
Micon ACOK XACOK
DS04-27247-3E
MB39A119
Automatic changing system power supply between adapter battery adapter voltage detected, external switch input side battery side changed automatically with connection follows. Connect terminal (pin terminal (pin this function. duty cycle becomes when terminal (pin voltage made needed after full charge. Connection example automatic changing system power supply between adapter battery
System
adapter ACIN Comp.> ACOK XACOK Battery
<SOFT> VREF Micon Micon
Battery selector function When control signal from microcomputer etc. input ACIN terminal (pin below, ACOK terminal (pin output voltage XACOK terminal (pin output voltage controlled select batteries charge. Connect terminal (pin terminal (pin this function. duty cycle becomes when terminal (pin voltage made needed after full charge. Connection example battery selector function
System adapter ACIN Comp.> ACOK XACOK Ichg
<SOFT> VREF
Battery1
Battery2
Micon
DS04-27247-3E
MB39A119
PHASE COMPENSATION
Circuit example phase compensation shown below. Circuit example phase compensation
-INE3 <Error Amp3> FB123 -2.5 -1.5
Bias Voltage (VCC-6V)
<PWM Comp.>
<OUT>
Drive
VBATT Rin1 Rin2
Inductance Equivalent series resistance inductance Capacity condenser Equivalent series resistance condenser Load resistance
Method obtain frequency characteristic filter
Frequency characteristic power output filter gain included.)
gain phase
Cut-off frequency
(Hz)
Phase [deg]
ESR)
Gain
Phase
-100 -120 -140 -160 -180
Gain [dB]
14.1
100k
Frequency [Hz]
DS04-27247-3E
MB39A119
Method obtain frequency characteristic Error
Total frequency characteristic
total gain Open Loop Gain total phase
Gain [dB]
Gain Phase
-100 -120 -140 -160 -180
Cut-off frequency
(Hz)
Phase [deg]
3300
100k
Frequency [Hz]
Method obtain frequency characteristic DC/DC converter
Total frequency characteristic
total gain Open Loop Gain total phase
Gain
Phase
100k
Frequency [Hz]
-100 -120 -140 -160 -180
overview frequency characteristic DC/DC converter obtained combination between filter frequency characteristic Error mentioned above. Note following point order stabilize frequency characteristic DC/DC converter. Cut-off frequency DC/DC converter should half less triangular wave oscillator frequency.
Triangular wave oscillation frequency.
Note1) Review frequency characteristic Error when filter constant changed. Note2) When ceramic capacitor used smoothing capacitor phase margin reduced because ceramic capacitor extremely small frequency characteristic filter ESR. Therefore, change phase compensation Error create resistance equivalent using pattern. Method obtain frequency characteristic filter
Frequency characteristic power output filter gain included.)
Gain
gain phase
Phase
-100 -120 -140 -160 -180
Phase [deg]
Gain [dB]
Cut-off frequency
(Hz)
Phase [deg]
ESR)
Gain [dB]
14.1
100k
Frequency [Hz]
DS04-27247-3E
MB39A119
3Pole2Zero
DC/DC output
Additional
Board Pattern connected resistor
DS04-27247-3E
MB39A119
PROCESSING WITHOUT USING CURRENT AMP1 AMP2
When Current used, connect +INC1 terminal (pin -INC1 terminal (pin terminal (pin connect +INC2 terminal (pin -INC2 terminal (pin VREF terminal (pin then leave OUTC2 terminal (pin open. Connection when Current used
-INC1 -INC2
+INC1 +INC2
VREF
"Open"
OUTC2
PROCESSING WITHOUT USING ERROR AMP1 AMP2
When Error Amp1 Amp2 used, connect -INE1 terminal (pin -INE2 terminal (pin (pin connect +INE1 terminal (pin +INE2 terminal (pin VREF terminal (pin Connection when Error used
+INE1
+INE2 -INE1
-INE2
VREF
DS04-27247-3E
MB39A119
PROCESSING WITHOUT USING TERMINAL
When soft-start function used, leave terminal (pin open. Connection when soft-start time specified
"Open"
DS04-27247-3E
MB39A119
EQUIVALENT CIRCUIT
Reference voltage block
1.25 VREF 124.53 41.47
Control block
protection element
132.4
protection element
Bias voltage block
Soft-start block
VREF (5.0
Triangular wave oscillator block
Error amplifier block (Error Amp1)
VREF (5.0
(3.1 -INE1 FB123
1.08
+INE1
Error amplifier block (Error Amp2)
Error amplifier block (Error Amp3)
(3.1 -INE2 FB123
(3.1 -INE3 FB123
+INE2
(Continued) DS04-27247-3E
MB39A119
(Continued) Current detection amplifier block (Current Amp1)
VREF VREF
Current detection amplifier block (Current Amp2)
+INC1
+INC2 -INE1
OUTC2
-INC1 -INC2
comparator block
VREF
Output block (Main side)
Output block (synchronous rectification side)
Invalidity current prevention block
OUTD OUT-1 OUT-2
FB123 PGND
Constant voltage control state detection block
VREF (5.0
adapter voltage detection block
VREF (5.0
FB123
ACIN
ACOK
XACOK
DS04-27247-3E
MB39A119
APPLICATION EXAMPLE
Q2-1 Q2-2 ACIN Comp.> ACOK XACOK Comp.> 100k 0.1µF 0.1µF System 100k
Side only 2.0V <Current Amp1>
2.6V 0.1V Comp.> 3.1V -INC2 (VO) <PWM Comp.> 5.0V 1.0µF
+INC1 -INC1
100k
Reg.
Q1-1 Q1-2 4.7µF 4.7µF 4.7µF 4.7µF Battery lchg
0.1µF OUT-1 Drive Logic Drv-1 OUT-2 Drv-2 4.7µF PGND
-INE1 +INE1 6800pF -INE2 100k OUTC2 1500pF +INC2 0.22µF -INC2 +INE2 9.1k15k 0.22µF FB123
<Error Amp1>
5.2µH
-2.5 -1.5
<Current Amp2>
<Error Amp2>
time Control ULVO,UV release
330pF lchg 0.4A
22pF 22pF 300k -INE3 100k OUTD
Output voltage (Battery voltage) adjustable. <UVLO> <Error Amp3> UVLO UVLO VREF UVLO
4.2V
Slope Control
<SOFT> VREF 10µA 0.22µF <Over Current Det.>
2.6V OUTC2 0.3V <OSC> VREF
<Sync Cnt.>
0.2V
+INC2 -INC2 (VO) 4.2V bias <REF> VREF 5.0V <CTL> DC/DC ON/OFF
0.1µF
DS04-27247-3E
MB39A119
PARTS LIST
Component Q1-1, Q1-2 Q2-1, Q2-2 Item N-ch P-ch P-ch Diode Diode Inductor Ceramic condenser Ceramic condenser Ceramic condenser Ceramic condenser Ceramic condenser Ceramic condenser Ceramic condenser Ceramic condenser Ceramic condenser Ceramic condenser Ceramic condenser Ceramic condenser Ceramic condenser Ceramic condenser Ceramic condenser Ceramic condenser Ceramic condenser Ceramic condenser Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Specification MB39A119 (Max) (Max) (Max) 0.35 (Max) (Max) 0.22 6800 1500 0.22 0.22 Vendor Fujitsu TOSHIBA ROHM SANYO SUMIDA Package QFN-28P SO-8 SO-8 SO-8 TUMD2 1197A 3216 3216 3216 3216 3216 1608 3216 1608 1608 1608 1608 1608 1608 1608 1608 1608 1608 1608 1608 1608 1608 1608 1608 1608 1608 1608 1608 1608 1608 1608 1608 1608 Parts MB39A119QN-G µPA2752 µPA1772 TPC8102 RSX051VA-30 SBS006 CDRH104R-5R2 C3216JB1E475K C3216JB1E475K C3216JB1E475K C3216JB1E475K C3216JB1E475K C1608JB1H104K C3216JB1E105K C1608JB1H104K C1608JB1E224K C1608JB1H104K C1608JB1H682K C1608CH1H331J C1608CH1H220J C1608CH1H220J C1608CH1H152J C1608JB1H104K C1608JB1E224K C1608JB1E224K SL1TTE33L0D SL1TTE15L0D RR0816P150D RR0816P513D RR0816P304D RR0816P104D RR0816P243D RR0816P103D RR0816P333D RR0816P393D RR0816P203D RR0816P243D RR0816P473D RR0816P912D RR0816P153D RR0816P163D (Continued) DS04-27247-3E
MB39A119
(Continued) Component
Item Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor
Specification
Vendor
Package 1608 1608 1608 1608 1608 1608 1608 1608 1608 1608 1608
Parts RR0816P202D RR0816P104D RR0816P103D RR0816P104D RR0816P163D RR0816P753D RR0816P163D RR0816P104D RR0816P563D RR0816P100D RR0816P100D
Note corporation TOSHIBA TOSHIBA CORPORATION ROHM ROHM CO., LTD. SUMIDA Sumida Corporation Corporation Corporation SUSUMU CO., LTD. SANYO SANYO Electric Co., Ltd.
DS04-27247-3E
MB39A119
SELECTION COMPONENTS
N-ch N-ch switching should rated least +20% more than input voltage. minimize continuity loss, with (ON) between drain source. high input voltage high frequency operation, on-cycle switching loss will higher that power dissipation must considered. this application, µPA2752 used. Continuity loss, on/off switching loss total loss determined following formulas. selection must ensure that peak drain current does exceed rated values. Continuity loss (ON) Duty On-cycle switching loss (ON) (ON) (Max) fosc
Off-cycle switching loss (OFF) (OFF) (Max) (Max) fosc
Total loss (ON) (OFF) Inductor selecting inductors, course essential apply more current than rated capacity inductor, also note that lower limit ripple current critical point that reached will cause discontinuous operation considerable drop efficiency. This prevented choosing higher inductance value, which will enable continuous operation under light loads. Note that inductance value high, however, direct current resistance (DCR) increased this will also reduce efficiency. inductance must point where efficiency greatest. Note also that superimposition characteristics become worse load current value approaches rated current value inductor, that inductance value reduced ripple current increases, causing loss efficiency. selection rated current value inductance value will vary depending where point peak efficiency lies with respect load current. Inductance values determined following formulas. value load current conditions that peak peak value ripple current load current less.
DS04-27247-3E
MB39A119
16.8 output (Max) 16.8 fosc
N-ch (µPA2752 product)
Main side (ON) (Typ) (Typ) Synchronous rectification side (ON) (Typ) (Typ) Drain current Peak value peak drain current this must within rated current. FET's peak drain current obtained following formula. Main side 4.97 Synchronous rectification side 4.97 tOFF 16.8 10-6 0.7) VIN-Vo
24-16.8
Inductor (CDRH104R-5R2 SUMIDA product)
(tolerance 30%) rated current (VIN-Vo)
(24-16.8)
5.04
DS04-27247-3E
MB39A119
load current satisfying continuous current condition 16.8
tOFF 10-3 (1-0.7)
0.97 Ripple current Peak value peak ripple current must within rated current inductor. peak ripple current obtained following formula. VIN-Vo 4.97 Ripple current peak-to-peak value peak-to-peak ripple current obtained following formula. VIN-Vo 24-16.8
24-16.8 10-6
1.94
DS04-27247-3E
MB39A119
12.6 output (Max) 12.6 fosc
N-ch (µPA2752 product)
Main side (ON) (Typ) (Typ) Synchronous rectification side (ON) (Typ) (Typ) Drain current Peak value peak drain current this must within rated current. FET's peak drain current obtained following formula. Main side 4.90 Synchronous rectification side tOFF 12.6 10-6 0.63) VIN-Vo 0.63
20-12.6
4.90
DS04-27247-3E
MB39A119
Inductor (CDRH104R-5R2 SUMIDA product)
(tolerance 30%) rated current (VIN-Vo) 0.63
(24-12.6)
4.67 load current satisfying continuous current condition tOFF 12.6 897.0 VIN-Vo
(1-0.63)
0.63
4.90
20-12.6 10-6
Ripple current Peak-to-peak value peak-to-peak ripple current obtained following formula. VIN-Vo 20-12.6 0.63
1.79
Diode bootstrap (SBS006 SANYO product)
reverse voltage) Average output current peak surge current (forward voltage) 0.35 value that satisfies input voltage Efficiency somewhat rising leak Schottky diode even signal diode used, enough. recommended Also, capacitor bootstrap must very large than gate capacity main side. recommended capacity approximately
DS04-27247-3E
MB39A119
Charging current setting sense resistor (SL1TTE33L0F product)
When INE2 terminal (pin voltage charging current (IO) obtained following formula. INE2 24.5 24.5 33.0
Input current setting sense resistor (SL1TTE15L0F product)
When INE1 terminal (pin voltage 2.25 input current obtained following formula. INE1 2.25
15.0
Switching P-ch (µPA1772 product, TPC8102 TOSHIBA product)
Q2-1, Q2-2, must select appropriate device according input current.
DS04-27247-3E
MB39A119
REFERENCE DATA
Conversion efficiency Charging current (constant voltage mode)
Conversion efficiency
0.01 16.8 setting
Charging current Conversion efficiency Charging current (constant voltage mode) Conversion efficiency
0.01 12.6 setting
Charging current Conversion efficiency Charging voltage (constant current mode)
Conversion efficiency
setting
Charging voltage (Continued) DS04-27247-3E
MB39A119
Conversion efficiency Charging voltage (constant current mode)
Conversion efficiency
setting
Charging voltage Charging voltage Charging current
Charging voltage
16.8 setting
Charging current Charging voltage Charging current
Charging voltage
12.6 setting
Charging current (Continued) DS04-27247-3E
MB39A119
Switching waveform (constant voltage mode)
OUT-1 OUT-1 OUT-2 OUT-2 16.8 setting
5.0(µs)
Switching waveform (constant current mode)
OUT-1 OUT-1 OUT-2 OUT-2 setting
5.0(µs)
Switching waveform (constant voltage mode)
16.8 setting
5.0(µs)
(Continued) DS04-27247-3E
MB39A119
Switching waveform (constant current mode)
setting
5.0(µs)
Oscillation frequency Charging current
Oscillation frequency fOSC (kHz)
0.000
OUT-1
16.8 setting OUT-2
1.000
2.000
3.000
4.000
5.000
Charging current Oscillation frequency charging voltage Input voltage
24.0 fosc 22.0 18.0 16.0 14.0 12.0 16.8 setting 10.0 20.0
Oscillation frequency fOSC (kHz)
Input voltage (Continued) DS04-27247-3E
Charging voltage
MB39A119
Soft-start operating waveform (constant current mode)
setting
(ms)
Soft-start operating waveform (constant current mode)
setting
(ms)
(Continued)
DS04-27247-3E
MB39A119
Soft-start operating waveform (constant voltage mode)
16.8 setting
(ms)
Soft-start operating waveform (constant voltage mode)
16.8 setting
(ms)
(Continued)
DS04-27247-3E
MB39A119
Load-step response operation waveform (C.V modeC.C mode)
setting
(ms)
Load-step response operation waveform (C.C modeC.V mode)
setting
(ms)
(Continued)
DS04-27247-3E
MB39A119
(Continued)
Load-step response operation waveform (C.V modeC.V mode)
16.8 setting
(ms)
Load-step response operation waveform (C.V modeC.V mode)
16.8V setting
(ms)
DS04-27247-3E
MB39A119
LOOP CHARACTERISTICS
<Voltage mode> Gain, phase Frequency
1.E+01
Setting 16.8 16.8 (C.V mode)
1.E+02
1.E+03
1.E+04
1.E+05
1.E+06
Frequency (Hz)
<Current mode> Gain, phase Frequency
1.E+01 1.E+06
Setting (C.C mode)
1.E+02
1.E+03
1.E+04
1.E+05
Frequency (Hz)
DS04-27247-3E
Phase (deg)
Gain (dB)
Phase (deg)
Gain (dB)
MB39A119
USAGE PRECAUTIONS
Printed circuit board ground lines should with consideration common impedance. Take appropriate static electricity measures. Containers semiconductor materials should have anti-static protection made conductive material. After mounting, printed circuit boards should stored shipped conductive bags containers. Work platforms, tools, instruments should properly grounded. Working personnel should grounded with resistance between body ground. apply negative voltages. negative voltages below -0.3 create parasitic transistors lines, which cause abnormal operation.
ORDERING INFORMATION
Part number MB39A119QN Package 28-pin plastic (LCC-28P-M12) Remarks
DS04-27247-3E
MB39A119
PACKAGE DIMENSION
28-pin plastic Lead pitch Sealing method 0.50 Plastic mold
(LCC-28P-M12)
28-pin plastic (LCC-28P-M12)
5.00±0.10 (.197±.004)
3.50±0.10 (.138±.004)
INDEX AREA
5.00±0.10 (.197±.004)
3.50±0.10 (.138±.004)
0.25 -0.03 +.002 (.010 -.001
+0.05
(3-R0.20) ((3-R.008)) 0.50(.020) (TYP)
0.40±0.10 (.016±.004) 1PIN CORNER (C0.30(C.012))
0.08(.003) 0.00 (.000
+0.05 -0.00 +.002 -.000
0.85(.033) 0.20(.008)
2007-2008 FUJITSU MICROELECTRONICS LIMITED C28069S-c-1-2
Dimensions (inches). Note: values parentheses reference values.
Please confirm latest Package dimension following URL.
DS04-27247-3E
MB39A119
FUJITSU MICROELECTRONICS LIMITED
Shinjuku Dai-Ichi Seimei Bldg. 7-1, Nishishinjuku 2-chome, Shinjuku-ku, Tokyo 163-0722, Japan Tel: +81-3-5322-3347 Fax: +81-3-5322-3387 http://jp.fujitsu.com/fml/en/ further information please contact: North South America FUJITSU MICROELECTRONICS AMERICA, INC. 1250 Arques Avenue, Sunnyvale, 94085-5401, U.S.A. Tel: +1-408-737-5600 Fax: +1-408-737-5999 http://www.fma.fujitsu.com/ Europe FUJITSU MICROELECTRONICS EUROPE GmbH Pittlerstrasse 63225 Langen, Germany Tel: +49-6103-690-0 Fax: +49-6103-690-122 Korea FUJITSU MICROELECTRONICS KOREA LTD. KOSMO TOWER, 1002 Daechi-Dong, Kangnam-Gu,Seoul 135-280 Korea Tel: +82-2-3484-7100 Fax: +82-2-3484-7111 http://www.fmk.fujitsu.com/ Asia Pacific FUJITSU MICROELECTRONICS ASIA LTD. Lorong Chuan, #05-08 Tech Park, Singapore 556741 Tel: +65-6281-0770 Fax: +65-6281-0220 FUJITSU MICROELECTRONICS SHANGHAI CO., LTD. Rm.3102, Bund Center, No.222 Road(E), Shanghai 200002, China Tel: +86-21-6335-1560 Fax: +86-21-6335-1605 http://cn.fujitsu.com/fmc/ FUJITSU MICROELECTRONICS PACIFIC ASIA LTD. 10/F., World Commerce Centre, Canton Road Tsimshatsui, Kowloon Hong Kong Tel: +852-2377-0226 Fax: +852-2376-3269 http://cn.fujitsu.com/fmc/tw
Rights Reserved. contents this document subject change without notice. Customers advised consult with sales representatives before ordering. information, such descriptions function application circuit examples, this document presented solely purpose reference show examples operations uses FUJITSU MICROELECTRONICS device; FUJITSU MICROELECTRONICS does warrant proper operation device with respect based such information. When develop equipment incorporating device based such information, must assume responsibility arising such information. FUJITSU MICROELECTRONICS assumes liability damages whatsoever arising information. information this document, including descriptions function schematic diagrams, shall construed license exercise intellectual property right, such patent right copyright, other right FUJITSU MICROELECTRONICS third party does FUJITSU MICROELECTRONICS warrant non-infringement third-party's intellectual property right other right using such information. FUJITSU MICROELECTRONICS assumes liability infringement intellectual property rights other rights third parties which would result from information contained herein. products described this document designed, developed manufactured contemplated general use, including without limitation, ordinary industrial use, general office use, personal use, household use, designed, developed manufactured contemplated accompanying fatal risks dangers that, unless extremely high safety secured, could have serious effect public, could lead directly death, personal injury, severe physical damage other loss (i.e., nuclear reaction control nuclear facility, aircraft flight control, traffic control, mass transport control, medical life support system, missile launch control weapon system), requiring extremely high reliability (i.e., submersible repeater artificial satellite). Please note that FUJITSU MICROELECTRONICS will liable against and/or third party claims damages arising connection with above-mentioned uses products. semiconductor devices have inherent chance failure. must protect against injury, damage loss from such failures incorporating safety design measures into your facility equipment such redundancy, fire protection, prevention over-current levels other abnormal operating conditions. Exportation/release products described this document require necessary procedures accordance with regulations Foreign Exchange Foreign Trade Control Japan and/or export control laws. company names brand names herein trademarks registered trademarks their respective owners.
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ASSP Power Management Applications (Rechargeable battery) DC/DC C

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