ASSP Power Supply Applications (Secondary Battery) DC/DC Converte

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ASSP Power Supply Applications (Secondary Battery) DC/DC Converte

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DS04-27240-1Ea
ASSP Power Supply Applications (Secondary Battery)
DC/DC Converter Charging Li-ion Battery
MB39A113
DESCRIPTION
MB39A113 DC/DC converter pulse width modulation (PWM) type charging, capable independently controlling output voltage output current. MB39A113 suitable down conversion. MB39A113 dynamically control charge current secondary battery, keep power constant detecting voltage drop adapter (dynamically-controlled charging) MB39A113 easily charge current value, making ideal built-in charging device products such notebook
FEATURES
Built-in dual constant-current control circuits Analog control charge current possible. (+INE1 +INE2 terminals) Built-in adapter detection function (fixing output state when voltage lower than battery voltage Possible prevent mis-detecting fully-charged state constant-voltage control state detection function (CVM terminal) Built-in overvoltage detection function charge-voltage (OVP terminal) (Continued)
PACKAGE
24-pin plastic SSOP
(FPT-24P-M03)
Copyright©2004-2008 FUJITSU MICROELECTRONICS LIMITED rights reserved 2004.5
MB39A113
(Continued) Wide range operating power-supply voltage Output voltage setting accuracy 0.74% Built-in high accuracy current detection amplifier input voltage difference input voltage difference Output voltage setting resistor open enable prevention invalidity current standby. (ICC Typ) Oscillation frequency range Built-in current detection amplifier with wide in-phase input voltage range Built-in soft-start function independent loads Built-in standby current function (Typ) Built-in totem-pole output stage supporting P-channel FETs devices
MB39A113
ASSIGNMENT
(TOP VIEW)
-INC2 OUTC2 +INE2 -INE2 +INC2
VREF
FB12 -INE1 +INE1 OUTC1
-INE3
OUTD -INC1
+INC1
(FPT-24P-M03)
MB39A113
DESCRIPTION
Symbol -INC2 OUTC2 INE2 -INE2 VREF FB12 -INE1 INE1 OUTC1 OUTD -INC1 INC1 -INE3 INC2 Description Current detection amplifier (Current Amp2) inverted input terminal Current detection amplifier (Current Amp2) output terminal Error amplifier (Error Amp2) non-inverted input terminal Error amplifier (Error Amp2) inverted input terminal Open drain type output terminal constant-voltage control state detection comparator Comp.) Reference voltage output terminal Error amplifier (Error Amp1, Error Amp2) output terminal Error amplifier (Error Amp1) inverted input terminal Error amplifier (Error Amp1) non-inverted input terminal Current detection amplifier (Current Amp1) output terminal With standby mode, this terminal Hi-Z prevent loss current through output voltage setting resistance. terminal Output level level Current detection amplifier (Current Amp1) inverted input terminal Current detection amplifier (Current Amp1) non-inverted input terminal Power supply control terminal Setting terminal level places standby mode. Error amplifier (Error Amp3) output terminal Error amplifier (Error Amp3) inverted input terminal Triangular wave oscillation frequency setting resistor connection terminal Open drain type output terminal overvoltage detection comparator (OVComp.) Power supply terminal drive circuit. VCC-6 External gate drive terminal. Power supply terminal reference power supply control circuit output circuit Soft-start capacitor connection terminal Ground terminal Current detection amplifier (Current Amp2) non-inverted input terminal
MB39A113
BLOCK DIAGRAM
Comp.>
-INE1 VREF <Error Amp1> -INE2 <Current <Error Amp2> -INC2 (VO) <PWM Comp.> <Current
OUTC1 +INC1 -INC1
Comp.>
+INE1
Comp.>
OUTC2 +INC2 -INC2 +INE2 FB12
<OUT> Drive
VREF <Error Amp3> -2.5 Bias Voltage -1.5
-INE3 OUTD
UVLO VREF UVLO
<SOFT> VREF <OSC> VREF VREF <REF> bias
<CTL>
MB39A113
ABSOLUTE MAXIMUM RATINGS
Parameter Power supply voltage Output current Peak output current Power dissipation Storage temperature Symbol IOUT IOUT TSTG Conditions terminal Duty 1/fosc Duty) Rating 740* +125 Unit
package mounted dual-sided epoxy board WARNING: Semiconductor devices permanently damaged application stress (voltage, current, temperature, etc.) excess absolute maximum ratings. exceed these ratings.
RECOMMENDED OPERATING CONDITIONS
Parameter Power supply voltage Reference voltage output current terminal output current Symbol terminal -INE1 -INE3, INE1, INE2 terminal INC1, INC2, -INC1, -INC2 terminal Duty 1/fosc Duty) -600 Conditions Value 0.022 +600 Unit
IREF VINE Input voltage VINC terminal input voltage VCTL Output current IOUT Peak output current IOUT terminal output voltage VCVM terminal output current ICVM terminal output voltage VOVP terminal output current IOVP OUTD terminal output voltage VOUTD OUTD terminal output current IOUTD Oscillation frequency fosc Timing resistor Soft-start capacitor terminal capacitor Reference voltage output capacitor CREF Operating ambient temperature
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.
MB39A113
ELECTRICAL CHARACTERISTICS
(VCC VREF Parameter Output voltage Reference Voltage Block [REF] Input stability Load stability Short-circuit output current UnderVoltage (VCC) Lockout Protection Circuit Block [UVLO] Soft-start Block [SOFT] Triangular Wave Oscillator Block [OSC] Threshold voltage VTHL Hysteresis width Charge current Oscillation frequency Frequency temperature stability Input offset voltage Input bias current Error Amplifier Block [Error Amp1, Error Amp2] Voltage gain Frequency bandwidth Output voltage Output source current Output sink current Standard design value (Continued) fosc f/fdt VFBH VFBL ISOURCE ISINK FB12 FB12 VREF FB12 -100 0.2* 100* 1.3* -120 Symbol VREF1 VREF2 Line Load VTLH Conditions VREF VREF VREF Value 5.025 5.037 4.975 5.000 4.963 5.000 Unit
MB39A113
(VCC VREF Parameter Input current Voltage gain Frequency bandwidth Output voltage Symbol IINE VFBH VFBL Conditions -INE3 OUTD OUTD Value Unit -100 100* 1.3* -120 4.179 4.200 4.221 4.169 4.200 4.231 0.46
Output source current ISOURCE Error Amplifier Output sink current ISINK Block VTH1 [Error Amp3] Threshold voltage VTH2 OUTD terminal output leak current OUTD terminal output resistor Input offset voltage ILEAK I+INCH I-INCH Input current I+INCL I-INCL Current Detection Amplifier Block [Current Amp1, Current Amp2] VOUTC1 VOUTC2 VOUTC3 VOUTC4 In-phase input voltage range Voltage gain Frequency bandwidth
Current detection voltage
VOUTCH Output voltage VOUTCL Output source current ISOURCE Output sink current ISINK Standard design value
INC1 INC2 -INC1 -INC2 INC1 INC2 VCC, -100 INC1 INC2 VCC, -100 INC1 INC2 -180 -120 -100 INC1 INC2 -195 -130 -100 INC1 INC2 VCC, -100 INC1 INC2 VCC, 0.34 0.40 INC1 INC2 -100 INC1 INC2 INC1 INC2 VCC, -100 OUTC1 OUTC2 OUTC1 OUTC2
(Continued)
MB39A113
(Continued) Symbol Threshold voltage Output source current Output sink current Output Block [OUT] Output resistor Rise time Fall time Adaptor Detection Block Comp.] Threshold voltage Hysteresis width Threshold voltage Constant-voltage Hysteresis width Control State Detection Block terminal output leakage current Comp.] terminal output resistor Threshold voltage Overvoltage Detection Block Comp.] Hysteresis width terminal output leak current terminal output resistor input voltage Control Block [CTL] Input current Bias Voltage Block [VH] General ISOURCE ISINK VTLH VTHL VTLH VTHL ILEAK VTLH VTHL ILEAK VOFF ICTLH ICTLL ICCS (VCC VREF Parameter Comparator Block [PWM Comp.] Conditions Value 16.8 operation mode standby mode -6.5 -400* 400* 17.4 17.0 0.4* 0.1* 0.1* -6.0 17.6 17.2 -5.5 Unit
Duty cycle Duty cycle 100% Duty 1/fosc Duty) Duty 1/fosc Duty) 3300 3300 -INC2 16.8
-INC2 16.8 17.2
Output voltage Standby current Power supply current
Standard design value
MB39A113
TYPICAL CHARACTERISTICS
Power Supply Current Power Supply Voltage Power supply current (mA)
terminal input current ICTL (µA)
Terminal Input Current, Reference Voltage Terminal Input Voltage
1000
VREF
ICTL
Power supply voltage
terminal input voltage VCTL
Reference Voltage Power Supply Voltage
Reference Voltage Load Current Reference voltage VREF
Reference voltage VREF
VREF
Power supply voltage
Load current IREF (mA)
Reference Voltage Operating Ambient Temperature Triangular wave oscillation frequency fosc (kHz) Reference voltage VREF
5.08 5.06 5.04 5.02 5.00 4.98 4.96 4.94 4.92 VREF
Triangular Wave Oscillation Frequency Power Supply Voltage
Operating ambient temperature
Power supply voltage
(Continued)
Reference voltage VREF
VREF
MB39A113
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)
1000
Operating ambient temperature
1000
Timing resistor
Error Amplifier Threshold Voltage Operating Ambient Temperature Error amplifier threshold voltage
4.25 4.24 4.23 4.22 4.21 4.20 4.19 4.18 4.17 4.16 4.15
Operating ambient temperature
(Continued)
MB39A113
Error Amplifier, Gain Phase Frequency
Gain (dB)
Phase (deg)
-180
Error Amp1 (Error Amp2)
Frequency (Hz) Error Amplifier, Gain Phase Frequency
Gain (dB)
Phase (deg)
-180
Error Amp3
Frequency (Hz) Current Detection Amplifier, Gain Phase Frequency
Gain (dB)
Phase (deg)
-180
(24)
12.6 Current Amp1 (Current Amp2)
Frequency (Hz)
(Continued)
MB39A113
(Continued)
Power Dissipation Operating Ambient Temperature
Power dissipation (mW)
Operating ambient temperature
MB39A113
FUNCTIONAL DESCRIPTION
DC/DC Converter Block
Reference voltage block (REF) reference voltage circuit generates temperature-compensated reference voltage (5.0 Typ) using voltage supplied from terminal (pin voltage used reference voltage IC's internal circuit. reference voltage used supply load current external device through VREF terminal (pin Triangular wave oscillator block (OSC) triangular wave oscillator block built-in frequency setting capacitor, generates triangular wave oscillation waveforms connecting frequency setting resistor with terminal (pin triangular wave input IC's internal comparator. Error amplifier block (Error Amp1) error amplifier (Error Amp1) detects voltage drop adaptor control signal output. connecting feedback resistor capacitor between FB12 terminal (pin -INE1 terminal (pin possible create desired level loop gain, thereby providing stable phase compensation system. Also, possible prevent rush current power supply start-up connecting soft-start capacitor with terminal (pin error amplifier soft-start detection makes possible system operate fixed soft-start time that independent output load. Error amplifier block (Error Amp2) error amplifier detects output signal current detection amplifier (Current Amp2) outputs control signal comparison with +INE2 terminal (pin also controls charge current. connecting feedback resistor capacitor between FB12 terminal (pin -INE2 terminal (pin possible create desired level loop gain, thereby providing stable phase compensation system. Also, possible prevent rush current power supply start-up connecting soft-start capacitor with terminal (pin error amplifier soft-start detection makes possible system operate fixed soft-start time that independent output load. Error amplifier block (Error Amp3) error amplifier (Error Amp3) detects DC/DC converter output voltage outputs control signals. arbitrary output voltage cells connecting external output voltage setting resistors error amplifier inverting input pins. connecting feedback resistor capacitor between terminal (pin15) -INE3 terminal (pin possible create desired level loop gain, thereby providing stable phase compensation system. Also, possible prevent rush current power supply start-up connecting soft-start capacitor with terminal (pin error amplifier soft-start detection makes possible system operate fixed soft-start time that independent output load.
MB39A113
Current detection amplifier block (Current Amp1) current detection amplifier (Current Amp1) detects voltage drop which occurs between both ends output sense resistor (RS) flow charge current, using +INC1 terminal (pin -INC1 terminal (pin Then outputs signal amplifier times error amplifier (Error Amp1) next stage. Current detection amplifier block (Current Amp2) current detection amplifier (Current Amp2) detects voltage drop which occurs between both ends output sense resistor (RS) flow charge current, using +INC2 terminal (pin -INC2 terminal (pin Then outputs signal amplified times error amplifier (Error Amp2) next stage. comparator block (PWM Comp.) comparator circuit voltage-to-pulse width modulator that controls output duty depending output voltage error amplifier (Error Amp1 Error Amp3) comparator circuit compares triangular wave generated triangular wave oscillator error amplifier output voltage turns external output transistor during interval which triangular wave voltage lower than error amplifier output voltage. Output block (OUT) output circuit uses totem-pole configuration capable driving external P-channel FET. output level sets output amplitude (Typ) using voltage generated bias voltage block (VH) This results increasing conversion efficiency suppressing withstand voltage connected external transistor wide range input voltages. (10) Power supply control block (CTL) Setting terminal (pin places standby mode. (The supply current maximum standby mode.) function table Power (Standby) (Active)
(11) Bias voltage block (VH) bias voltage circuit outputs VCC-6 (Typ) minimum potential output circuit. standby mode, this circuit outputs potential equal VCC.
MB39A113
Protection Functions
Under-voltage lockout protection circuit (UVLO) transient state when power supply (VCC) turned momentary decrease supply voltage/ internal reference voltage (VREF) cause malfunctions control resulting breakdown degradation system. prevent such malfunctions, under-voltage lockout protection circuit detects internal reference voltage drop fixes terminal (pin level. system restores when internal reference voltage reaches threshold voltage under-voltage lockout protection circuit. Protection circuit (UVLO) operation function table UVLO operating (VREF voltage lower than UVLO threshold voltage.) OUTD Hi-Z
adapter detection block Comp.) This block detects that power-supply voltage (VCC) lower than battery voltage (Typ) terminal (pin fixed level. system restores voltage supply when supply voltage reaches threshold voltage adapter detection block. Protection circuit Comp.) operation function table Comp. operating (VCC voltage lower than Comp. threshold voltage.) OUTD
Soft-start Function
Soft-start block (SOFT) Connecting capacitor terminal (pin prevents rush currents from flowing upon activation power supply. Using error amplifier detect soft-start allows soft-start constant setting time intervals independent output load DC/DC converter.
Detection Function
Constant-voltage control state detection block Comp.) Error amplifier (Error Amp3) detects voltage (pin falling below (Typ) outputs level constant-voltage control state detection block output terminal (CVM, Overvoltage detection block Comp.) Error amplifier (Error Amp3) detects voltage (pin falling below (Typ) outputs level overvoltage detection block output terminal (OVP, 18).
MB39A113
SETTING CHARGING VOLTAGE
charge voltage (DC/DC output voltage) connecting external output voltage setting resistors (R3, -INE3 terminal (pin Select resistor value which on-resistor built-in connected OUTD terminal (pin ignored. Charge voltage battery
-INE3 OUTD
<Error Amp3>
SETTING CHARGING CURRENT
charge current value (output limit current) depending voltage value +INE2 terminal (pin current exceeding current value attempts flow, charge voltage drops according current value. Battery charge current setting voltage INE2 INE2
SETTING TRIANGULAR WAVE OSCILLATION FREQUENCY
triangular wave oscillation frequency determined timing resistor (RT) connected terminal (pin Triangular wave oscillation frequency fosc fosc (kHz) 14100/RT
MB39A113
SETTING SOFT-START TIME
Setting constant voltage mode soft-start prevent rush currents when turned allows soft-start using capacitor (CS) connected terminal (pin When terminal (pin placed under level activated (threshold voltage UVLO) turned external soft-start capacitor (CS) connected terminal charged Error output potential (FB3 terminal (pin 15)) determined through comparison between either lower potentials non-inverting input terminals (internal reference voltage (4.2 Typ) terminal voltage), inverting input terminal voltage INE3 terminal (pin 16)) Within soft-start period terminal voltage determined comparison between INE3 terminal voltage terminal voltage, DC/DC converter output voltage goes proportionately with increase terminal voltage caused charging soft-start capacitor. soft-start time obtained from following formula. Soft-start time (time until output voltage 100%) 0.42 (µF) terminal voltage Error block internal reference voltage
Soft-start time
VREF
-INE3
Error Amp3
UVLO
Soft-start circuit
MB39A113
Setting constant current mode soft-start prevent rush currents when turned allows soft-start using capacitor (CS) connected terminal (pin When terminal (pin placed under level activated (threshold voltage VREF UVLO) turned external soft-start capacitor (CS) connected terminal charged Error Amp1 output potential (FB12 terminal (pin determined through comparison between either lower potentials non-inverting input terminals INE1 terminal (pin voltage terminal voltage), inverting input terminal voltage INE1 terminal (pin Within soft-start period terminal voltage INE1) FB12 determined comparison between INE1 terminal voltage terminal voltage, DC/DC converter output voltage goes proportionately with increase terminal voltage caused charging soft-start capacitor. Error Amp1 output potential (FB12 terminal (pin determined through comparison between either potentials non-inverting input terminals INE2 terminal (pin voltage terminal voltage), inverting input terminal voltage INE2 terminal (pin Within soft-start period terminal voltage INE2) FB12 determined comparison between INE2 terminal voltage terminal voltage, DC/DC converter output voltage goes proportionately with increase terminal voltage caused charging soft-start capacitor. soft-start time obtained from following formula. Soft-start time (time until output voltage 100%) INE1 INE2) (µF) INE1 INE2) terminal voltage Error Amp1 block Comparison voltage with -INE1 voltage (Error Amp2 block Comparison voltage with -INE2 voltage)
Soft-start time
MB39A113
VREF
FB12 -INE1 -INE2 +INE1 +INE2
Error Amp1 (Error Amp2) UVLO
Soft-start circuit
MB39A113
SETTING DYNAMICALLY-CONTROLLED CHARGING
With external resistor connected INE1(pin enters dynamically-controlled charging mode reduce charge current keep adapter power constant when partial potential point adapter voltage (VCC) become lower INE2 terminal voltage. Dynamically-controlled charging setting voltage -INE1
-INE1 +INE1
<Error Amp1>
ABOUT CONSTANT-VOLTAGE CONTROL STATE DETECTION/OVERVOLTAGE DETECTION TIMING CHART
constant-voltage control state, terminal (pin constant-voltage control state detection block Comp.) outputs level, when voltage terminal (pin error amplifier (ErrorAmp becomes (Typ) less. When DC/DC converter output voltage enters state over-voltage higher than setting voltage, voltage terminal (pin error amplifier (Error Amp3) becomes (Typ) less. result, terminal (pin overvoltage detection block Comp.) outputs level. Both terminal terminal open-drain output forms
Error Amp3 Comp. VTHL
Error Amp2 Error Amp1 FB12 Comp. VTHL Comp.
Comp.
Constant current control
Constant voltage control
Overvoltage state
MB39A113
ABOUT OPERATION TIMING CHART
Error Amp2 Error Amp1 FB12
2.5V
Error Amp3 Current Amp2 OUTC2
Constant voltage control
Constant current control
adaptor dynamicallycontrolled charging
MB39A113
PROCESSING WITHOUT USING CURRENT AMP1 AMP2
When Current used, connect +INC1 terminal (pin 13), +INC2 terminal (pin 24), -INC1 terminal (pin 12), -INC2 terminal (pin VREF, open OUTC1 terminal (pin OUTC2 terminal (pin Connection when Current used
-INC1 -INC2 OUTC1 OUTC2 +INC1 +INC2
"Open"
VREF
PROCESSING WITHOUT USING ERROR AMP1 AMP2
When Error used, leave FB12 terminal (pin open connect -INE1 terminal (pin -INE2 terminal (pin GND, connect +INE1 terminal (pin +INE2 terminal (pin VREF. Connection when Error used
+INE1 +INE2 -INE1 -INE2
"Open"
FB12 VREF
MB39A113
PROCESSING WITHOUT USING TERMINAL
When soft-start function used, leave terminal (pin open. When soft-start function specified
"Open"
MB39A113
EQUIVALENT CIRCUIT
Reference voltage block
VREF
Control block
37.8 12.35 33.1
protection element
protection element
Soft-start block
VREF (5.0 VREF (5.0
Triangular wave oscillator block
Error amplifier block (Error Amp1)
-INE1
FB12
+INE1
Error amplifier block (Error Amp2)
VREF (5.0 -INE2 FB12 VREF (5.0
Error amplifier block (Error Amp3)
-INE3
+INE2
Current detection amplifier block (Current Amp1)
Current detection amplifier block (Current Amp2)
+INC1 OUTC1
+INC2 OUTC2
-INC1
-INC2
(Continued)
MB39A113
(Continued)
comparator block
Output block
adaptor detection block
-INC2
FB12
VREF (5.0
Constant-voltage control state detection block
VREF (5.0
VREF (5.0
Overvoltage detection block
Bias voltage block
Prevent inefficient current block
OUTD
MB39A113
APPRICATION EXAMPLE
10000 -INE1 Comp.>
VREF <Error OUTC2 +INC2 +INE2 FB12 <Current <Error -INC2 (VO) <PWM Comp.> <Current
OUTC1 +INC1 -INC1
Comp.>
+INE1 -INE2 4700 Comp.>
<OUT> Drive
-INC2
VREF <Error -INE3 OUTD -2.5 UVLO VREF UVLO -1.5 Bias Voltage
0.033 Battery
1500
<SOFT> VREF 0.022 VREF VREF <OSC> <REF> bias
<CTL>
MB39A113
PARTS LIST
COMPONENT R11, R16, R17, ITEM Diode Inductor Ceramics Condenser OS-CONCeramics Condenser Ceramics Condenser Ceramics Condenser Ceramics Condenser Ceramics Condenser Ceramics Condenser Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor SPECIFICATION -7.0 0.42 (Max) 1500 0.01 4700 0.022 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% VENDOR SANYO ROHM SUMIDA SANYO PARTS µPA2714GR MCH3401 RB053L-30 CDRH104R-150 C3225JB1E475K 20SVP22M C1608JB1H152K C1608JB1H104K C1608JB1H103K C1608JB1H472K C1608JB1H223K C1608JB1H104K SL1TTE33LOF RR0816P-473-D RR0816P-334-D RR0816P-184-D RR0816P-303-D RR0816P-223-D RR0816P-104-D RR0816P-103-D RR0816P-124-D RR0816P-303-D RR0816P-203-D RR0816P-102-D RR0816P-121-D RR0816P-204-D RR0816P-104-D RR0816P-104-D
Note Corporation SANYO SANYO Electric Co., ROHM ROHM CO., LTD. SUMIDA Sumida Corporation Corporation Corporation SUSUMU CO., OS-CON trademark SANYO Electric Co., Ltd.
MB39A113
SELECTION COMPONENTS
P-channel MOSFET switching should rated least 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, µPA2714GR (NEC products) 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) Example) Using µPA2714GR Setting 16.8 Input voltage output voltage 16.8 drain current oscillation frequency fosc kHz, drain-source resistance (ON) Drain current (Max) (Max) (Max) Drain current (Min) (Min) (Min) (ON) Duty 0.018 0.672 0.109 VIN-Vo 25-16.8 10-6 0.672 VIN-Vo 25-16.8
0.672
MB39A113
fosc 10-9
(ON)
0.056 (OFF) (Max) fosc 10-9
0.189 (ON) (OFF) 0.109 0.056 0.189 0.354 above power dissipation figures µPA2714GR satisfied with ample margin Setting 12.6 Input voltage output voltage 12.6 drain current oscillation frequency fosc kHz, drain-source resistance (ON) Drain current (Max) (Max) (Max) Drain current (Min) (Min) (Min) (ON) Duty 0.018 0.572 0.093 VIN-Vo 22-12.6
VIN-Vo 22-12.6
0.572
10-6
0.572
MB39A113
fosc 10-9 0.050 (Max) fosc 10-9
(ON) (OFF)
0.166 (ON) (OFF) 0.093 0.050 0.166 0.309 above power dissipation figures µPA2714GR satisfied with ample margin 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-load. 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 characteristic becomes 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. Inductance value (VIN-Vo)
16.8 output Example) (VIN (Max) -Vo) (25-16.8) 12.2
0.672
MB39A113
12.6 output Example) (VIN (Max) -Vo) (22-12.6)
0.572
12.0 Inductance values derived from above formulas values that provide sufficient margin continuous operation maximum load current, which continuous operation possible light-loads. necessary determine load level which continuous operation becomes possible. this application, SUMIDA CDRH104R-150 used. following equation available obtain load current continuous current condition when used. load current value under continuous operating conditions tOFF
Example) Using CDRH104R-150 (tolerance 30%) rated current 16.8 output tOFF 16.8
(1-0.672)
0.61 12.6 output tOFF 12.6
(1-0.572)
0.60 determine whether current through inductor within rated values, necessary determine peak value ripple current well peak-to-peak values ripple current that affect output ripple voltage. peak value peak-to-peak value ripple current determined following formulas. Peak value VIN-Vo
Peak-peak value VIN-Vo
MB39A113
Example) Using CDRH104R-150 (tolerance 30%) rated current Peak value 16.8 output VIN-Vo 0.672
25-16.8
12.6 output VIN-Vo 0.572
22-12.6
Peak-peak value 16.8 output VIN-Vo 25-16.8 1.22
0.672
12.6 output VIN-Vo 22-12.6 10-6 Flyback diode
0.572
flyback diode, general, Schottky barrier diode (SBD) used when reverse voltage diode less. characteristic higher speed terms faster reverse recovery time, lower forward voltage, ideal archiving high efficiency. There problem long reverse voltage sufficiently higher than input voltage, mean current flowing during diode conduction time within mean output current level, peak current within peak surge current limits. this application RB053L-30 (ROHM) used. diode mean current diode peak current obtained following formulas. Diode mean current Diode peak current IDip IDip tOFF)
MB39A113
Example) Using RB053L-30 reverse voltage) average output current peak surge current (forward voltage) 0.42 16.8 output (1-0.672) 0.984
12.6 output (1-0.572) 1.284
16.8 output IDip tOFF)
12.6 output IDip tOFF)
Smoothing capacitor smoothing capacitor indispensable element reducing ripple voltage output. selecting smoothing capacitor, essential consider equivalent series resistance (ESR) allowable ripple current. Higher means higher ripple voltage, that reduce ripple voltage necessary select capacitor with ESR. Note, however, that capacitor with substantial effects loop phase characteristics, impairing system stability. Care should also taken capacity with sufficient margin allowable ripple current. this application 20SVP22M (OS-CON: SANYO) used. ESR, capacitance value, ripple current obtained following formulas. Equivalent series resistance 2fCL Capacitance value (Vo-IL ESR) Ripple current ICLrms (VIN-Vo) ICLrms
MB39A113
Example) Using 20SVP22M Rated voltage maximum allowable ripple current 1450 mArms Equivalent series resistance 16.8 output 2fCL 0.168 1.22 10-6
12.6 output 0.126
2fCL 10-6
Capacitance value 16.8 output (Vo-IL ESR) 1.22 (0.168-1.22 0.06)
12.6 output (Vo-IL ESR) (0.126-1.2 0.06)
11.8 Ripple current 16.8 output (VIN-Vo) ICLrms (25-16.8) 0.672 10-6 mArms
12.6 output (VIN-Vo) ICLrms (22-12.6) 0.572 10-6
mArms
MB39A113
REFERENCE DATA
Conversion Efficiency Charge Current (constant voltage mode)
Efficiency
0.01
VBATT 12.6 setting (VBATT IBATT) (VAC IAC) Converted VBATT
IBATT Conversion Efficiency Charge Voltage (constant current mode)
Efficiency
IBATT setting (VBATT IBATT) (VAC IAC) Converted VBATT
VBATT BATT Voltage BATT Charge Current (12.6 setting)
VBATT 12.6 setting
D.C.C. Mode Dead Battery Mode
VBATT
D.C.C. Mode Dynamically-controlled charging
IBATT
(Continued)
MB39A113
Conversion Efficiency Charge Current (constant voltage mode)
Efficiency
0.01
VBATT 16.8 setting (VBATT IBATT) (VAC IAC) Converted VBATT
IBATT Conversion Efficiency Charge Voltage (constant current mode)
Efficiency
IBATT setting (VBATT IBATT) (VAC IAC) Converted VBATT
VBATT BATT Voltage BATT Charge Current (16.8 setting)
D.C.C. Mode Dead Battery Mode
VBATT
VBATT 16.8 setting
D.C.C. Mode Dynamically-controlled charging
IBATT
(Continued)
MB39A113
Switching Waveform Constant Voltage Mode (12.6 setting)
OUT(V) VD(V) mode IBATT VBATT 12.6 setting
(µs)
Switching Waveform Constant Current Mode (12.6 setting
OUT(V) mode IBATT setting VBATT
VD(V)
(µs)
(Continued)
MB39A113
Switching Waveform Constant Voltage Mode (16.8 setting)
OUT(V) mode IBATT VBATT 16.8 setting
VD(V)
(µs)
Switching Waveform Constant Current Mode (16.8 setting
OUT(V) mode IBATT setting VBATT
VD(V)
(µs)
(Continued)
MB39A113
Soft-start Operating Waveform Constant Voltage Mode (12.6 setting)
mode VBATT 12.6 setting
VO(V) CTL(V)
10.0
12.5
15.0
17.5
20.0
22.5
25.0 (ms)
Soft-start Operating Waveform Constant Voltage Mode (12.6 setting)
CVM(V) OVP(V) CTL(V) mode VBATT 12.6 setting
10.0
12.5
15.0
17.5
20.0
22.5
25.0 (ms)
(Continued)
MB39A113
Discharge Operating Waveform Constant Voltage Mode (12.6 setting)
mode VBATT 12.6 setting
VO(V) CTL(V)
10.0
12.5
15.0
17.5
20.0
22.5
25.0 (ms)
Discharge Operating Waveform Constant Voltage Mode (12.6 setting)
CVM(V) OVP(V) CTL(V) mode VBATT 12.6 setting
10.0
12.5
15.0
17.5
20.0
22.5
25.0 (ms)
(Continued)
MB39A113
Soft-start Operating Waveform Constant Current Mode (12.6 setting)
VO(V) CTL(V) mode 3.33 VBATT 12.6 setting
10.0
12.5
15.0
17.5
20.0
22.5
25.0 (ms)
Soft-start Operating Waveform Constant Current Mode (12.6 setting)
CVM(V) OVP(V) CTL(V) mode 3.33 VBATT 12.6 setting
10.0
12.5
15.0
17.5
20.0
22.5
25.0 (ms)
(Continued)
MB39A113
Discharge Operating Waveform Constant Current Mode (12.6 setting)
VO(V) CTL(V) mode 3.33 VBATT 12.6 setting
10.0
12.5
15.0
17.5
20.0
22.5
25.0 (ms)
Discharge Operating Waveform Constant Current Mode (12.6 setting)
CVM(V) OVP(V) CTL(V) mode 3.33 VBATT 12.6 setting
10.0
12.5
15.0
17.5
20.0
22.5
25.0 (ms)
(Continued)
MB39A113
Soft-start Operating Waveform Constant Voltage Mode (16.8 setting)
mode VBATT 16.8 setting
VO(V) CTL(V)
10.0
12.5
15.0
17.5
20.0
22.5
25.0 (ms)
Soft-start Operating Waveform Constant Voltage Mode (16.8 setting)
CVM(V) OVP(V) CTL(V) mode VBATT 16.8 setting
10.0
12.5
15.0
17.5
20.0
22.5
25.0 (ms)
(Continued)
MB39A113
Discharge Operating Waveform Constant Voltage Mode (16.8 setting)
VO(V) CTL(V) mode VBATT 16.8 setting
10.0
12.5
15.0
17.5
20.0
22.5
25.0 (ms)
Discharge Operating Waveform Constant Voltage Mode (16.8 setting)
CVM(V) OVP(V) CTL(V) mode VBATT 16.8 setting
10.0
12.5
15.0
17.5
20.0
22.5
25.0 (ms)
(Continued)
MB39A113
Soft-start Operating Waveform Constant Current Mode (16.8 setting)
VO(V) CTL(V) mode 3.33 VBATT 16.8 setting
10.0
12.5
15.0
17.5
20.0
22.5
25.0 (ms)
Soft-start Operating Waveform Constant Current Mode (16.8 setting)
CVM(V) OVP(V) CTL(V) mode 3.33 VBATT 16.8 setting
10.0
12.5
15.0
17.5
20.0
22.5
25.0 (ms)
(Continued)
MB39A113
(Continued)
Discharge Operating Waveform Constant Current Mode (16.8 setting)
VO(V) CTL(V) mode 3.33 VBATT 16.8 setting
10.0
12.5
15.0
17.5
20.0
22.5
25.0 (ms)
Discharge Operating Waveform Constant Current Mode (16.8 setting)
CVM(V) OVP(V) CTL(V) mode 3.33 VBATT 16.8 setting
10.0
12.5
15.0
17.5
20.0
22.5
25.0 (ms)
MB39A113
NOTES
Take account common impedance when designing earth line printed wiring board. Take measures against static electricity. semiconductors, antistatic conductive containers. When storing carrying printed circuit board after chip mounting, conductive container. work table, tools, measuring instruments must grounded. worker must grounding device containing resistors series.
apply negative voltage. Applying negative voltage -0.3 less generate parasitic transistor, resulting malfunction.
MB39A113
ORDERING INFORMATION
Part number MB39A113PFV Package 24-pin plastic SSOP (FPT-24P-M03) Remarks
MB39A113
PACKAGE DIMENSION
24-pin plastic SSOP (FPT-24P-M03) Note Resin protrusion. (Each side +0.15 (.006) Max) Note These dimensions include resin protrusion. Note Pins width pins thickness include plating thickness. Note Pins width include cutting remainder.
0.17±0.03 (.007±.001)
*17.75±0.10(.305±.004)
5.60±0.10
INDEX
7.60±0.20 (.220±.004) (.299±.008) Details part 1.25 -0.10 .049 -.004
+0.20 +.008
(Mounting height)
0.25(.010) 0~8°
0.65(.026)
0.24 -0.07 .009 -.003
+0.08 +.003
0.13(.005)
0.50±0.20 (.020±.008) 0.60±0.15 (.024±.006)
0.10±0.10 (.004±.004) (Stand off)
0.10(.004)
2003 FUJITSU LIMITED F24018S-c-4-5
Dimensions (inches) Note values parentheses reference values.
MB39A113
MEMO
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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