AP3039 current mode high voltage low-side Nchannel MOSFET controller w
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Preliminary Datasheet BOOST CONTROLLER General Description
AP3039 current mode high voltage low-side Nchannel MOSFET controller which ideal boost regulators. contains features needed implement single ended primary topology DC/DC converters. input voltage range AP3039 from 27V. operation frequency adjustable from 400K 1MHz. AP3039 UVLO (Under Voltage Lock Out) circuit. uses external resistors UVLO voltage. AP3039 also over output voltage protection limit output voltage. voltage through external resistors. output voltage higher than high threshold point, will disable driver, when output voltage drops threshold point, will enable driver. also features soft start reduce inrush current when power soft start time through external capacitor. AP3039 available QFN-3x3-16 package.
AP3039 Features
Input Voltage Range 0.6A Peak MOSFET Gate Driver 20ns Quick MOSFET Gate Driver Duty Cycle Limit Programmable UVLO Programmable Over Voltage Protection Cycle Cycle Current Limit Adjustable Soft-Start Adjustable Operation Frequency from
Applications
Notebook Display Modules
QFN-3x3-16
Figure Package Type AP3039
2008 Rev.
Semiconductor Manufacturing Limited
Preliminary Datasheet BOOST CONTROLLER Configuration
Identification Package (QFN-3x3-16)
UVLO COMP
AP3039
SHDN AGND
Exposed
PGND Figure Configuration AP3039 (Top View)
Description
Number Name Enable Input supply pin, must locally bypassed connection linear regulator output pin. used bias gate driver external MOSFET. less than 8.5V, equal minus drop voltage across bypass switch. This should bypassed (recommend connect with AGND pin) with ceramic capacitor Connect this gate external MOSFET, gate driver 0.6A peak current capability Power ground external resistor connected from this operating frequency Sense switch current pin, which used current mode control current limit Reference ground This connected current matched chip receives error signal used shut down system Voltage Feedback Pin. reference voltage 500mV Compensation Pin. This output internal Error Amplifier Function
PGND AGND SHDN COMP
2008 Rev.
Semiconductor Manufacturing Limited
Preliminary Datasheet BOOST CONTROLLER Description (Continued)
Number Name Function external soft start time capacitor connected from this ground charged internal current source control regulator soft start time resistors connected from this ground respectively start shutdown level Over output voltage protection Exposed backside pad. Solder circuit board ground plane with sufficient copper connection ensure thermal resistance
AP3039
UVLO
Functional Block Diagram
REFERENCE BYPASS SWITCH REGULATOR
1.25V
UVLO
REFERENCE
1.25V DRIVER
PGND
1.25V
LOGIC
110mV
SHDN
COMP
OSTD
0.6V
AGND
Figure Functional Block Diagram AP3039
2008 Rev.
Semiconductor Manufacturing Limited
Preliminary Datasheet BOOST CONTROLLER Ordering Information
AP3039 Circuit Type Package QFN-3x3-16
Package QFN-3x3-16 Temperature Range 85oC Part Number AP3039FNTR-G1 Marking Packing Type Tape Reel
AP3039
Green Tape Reel
Semiconductor's products, designated with "G1" suffix part number, RoHS compliant Green.
2008 Rev.
Semiconductor Manufacturing Limited
Preliminary Datasheet BOOST CONTROLLER Absolute Maximum Ratings (Note
Parameter Input Voltage Voltage Voltage Feedback Voltage UVLO Voltage Voltage SHDN Voltage Enable Voltage Voltage Thermal Resistance (Junction Ambient, Heat sink) Operating Junction Temperature Storage Temperature Range Lead Temperature (Soldering, 10sec) (Machine Model) (Human Body Model) Symbol VOUT VUVLO VSHDN TSTG TLEAD Value 2000 Unit
oC/W
AP3039
Note Stresses greater than those listed under "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated under "Recommended Operating Conditions" implied. Exposure "Absolute Maximum Ratings" extended periods affect device reliability.
Recommended Operating Conditions
Parameter Symbol Unit
Input Voltage
Operating Frequency Operating Temperature
1000
2008 Rev.
Semiconductor Manufacturing Limited
Preliminary Datasheet BOOST CONTROLLER Electrical Characteristics
(VIN=12V, =VIN, TA=25oC, unless otherwise specified.)
Parameter Input Voltage Feedback Voltage Bias Current Supply Current Shutdown Supply Current Voltage Current Limit Drop Voltage Across Bypass Switch Bypass Switch Turn-off Threshold Bypass Switch Threshold Hysteresis UVLO Rising Threshold UVLO Falling Hysteresis Oscillator Frequency UVLO Threshold UVLO Hysteresis Current Source Current Limit Threshold Voltage Voltage Error Amplifier Transconductance Threshold Voltage SHDN Threshold Voltage Symbol ICC-LIM VIN-VCC VBYP-HI ICC=0mA, fOSC400kHz, 6VVIN <8.5V increasing Switching VEN=0V 9VVIN27V 6VVIN<9V Adjustable, RT=51k 150k 1.22 1.25 1.20 1.25 1.30 1000 1.28 Conditions Unit
AP3039
VBYP-HYS decreasing VCC-HI VCC-HYS fOSC VUVLO IHYS
2008 Rev.
Semiconductor Manufacturing Limited
Preliminary Datasheet BOOST CONTROLLER Electrical Characteristics (Continued)
(VIN=12V, =VIN, TA=25oC, unless otherwise specified.)
Parameter Threshold Hysteresis Current Source Maximum Duty Cycle Soft Start Current Source Rise Time Fall Time Dropout Voltage (VCC-VOUT) Voltage Level (VOUT) Thermal Shutdown Temperature Thermal Shutdown Hysteresis Symbol IOV-HYS DMAX tRISE tFALL VOUT-H VOUT-L TOTSD THYS Load =1nF Load =1nF IOUT=50mA IOUT=100mA Conditions 1.25 0.25 0.25 0.75 0.75 Unit
AP3039
2008 Rev.
Semiconductor Manufacturing Limited
Preliminary Datasheet BOOST CONTROLLER Typical Performance Characteristics AP3039
IOUT =160mA IOUT 200mA
fOSC =400kHz fOSC= 1MHz
Efficiency
Efficiency
VIN=12V, VOUT=33V, fOSC=1MHz L=22H, CIN=10F, COUT=10F
IOUT=160mA, VOUT=33V, TA=25 L=22H, CIN=10F; COUT=10F
Temperature
Input Voltage
Figure Efficiency Case Temperature
Figure Efficiency Input Voltage
92.0
91.5
Efficiency
Efficiency
91.0
90.5
90.0
VIN=12V, VOUT=33V, fOSC=1MHz, TA=25 L=22H, CIN=10F, COUT=10F
89.5
VIN=12V, VOUT=33V, fOSC=1MHz, TA=25 L=22H, CIN=10F, COUT=10F
89.0
Output Current (mA)
Output Voltage
Figure Efficiency Output Current
Figure Efficiency Output Voltage
2008 Rev.
Semiconductor Manufacturing Limited
Preliminary Datasheet BOOST CONTROLLER Typical Performance Characteristics (Continued) AP3039
Supply Current (mA)
Voltage
Input Voltage
Input Voltage
Figure Supply Current Input Voltage
Figure Voltage Input Voltage
1.20
1200 1100
1.15
1000
Frequency (MHz)
1.10
Frequency (kHz)
1.05
1.00
0.95
RT=51k
0.90
Case Temperature
Figure Switching Frequency Case Temperature
Figure Switching Frequency Value
2008 Rev.
Semiconductor Manufacturing Limited
Preliminary Datasheet BOOST CONTROLLER Typical Performance Characteristics (Continued) AP3039
1.30 1.29 1.28
1.260
1.255
UVLO Voltage
1.27
Voltage
1.250
1.26 1.25 1.24 1.23 1.22 1.21 1.20
1.245
1.240
1.235
1.230
Input Voltage
Input Voltage
Figure Voltage Input Voltage
Figure UVLO Voltage Input Voltage
1.280 1.275 1.270 1.265
25.0
1.260 1.255 1.250 1.245 1.240 1.235 1.230
UVLO Current
24.5 24.0 23.5 23.0 22.5 22.0 21.5 21.0 20.5 20.0
Voltage
Input Voltage
Input Voltage
Figure Voltage Input Voltage
Figure UVLO Current Input Voltage
2008 Rev.
Semiconductor Manufacturing Limited
Preliminary Datasheet BOOST CONTROLLER Typical Performance Characteristics (Continued) AP3039
25.0 24.5 24.0 23.5
0.510 0.508 0.506 0.504
Current
23.0 22.5 22.0 21.5 21.0 20.5 20.0
Voltage
0.502 0.500 0.498 0.496 0.494 0.492 0.490
Input Voltage
Case Temperature
Figure Current Input Voltage
Figure Feedback Voltage Case Temperature
Voltage (mV)
Dropout Voltage (mV)
Temperature
Case Temperature
Figure Voltage Case Temperature
Figure Dropout Voltage Case Temperature
2008 Rev.
Semiconductor Manufacturing Limited
Preliminary Datasheet BOOST CONTROLLER Application Information
Operation
AP3039 boost DC-DC controller with adjustable operation frequency. Current mode control scheme provides excellent line load regulation. Operation best understood referring Figure start each oscillator cycle, latch external power switch (see Figure turns switch current will increase linearly. voltage external sense resistor (see Figure4), connected from GND, proportional switch current. This voltage added stabilizing ramp result into non-inversion input comparator. When this non-inversion input voltage exceeds inversion input voltage comparator which output voltage error amplifier latch reset external power switch turns off. voltage level inversion input comparator sets peak current level keep output voltage regulation. This voltage level amplified signal voltage difference between feedback voltage reference voltage 0.5V. constant output current provided this operation mode. Input Under-Voltage Detector AP3039 contains Under Voltage Lock (UVLO) circuit. resistors connected from UVLO ground respectively (see Figure resistor divider must designed such that voltage UVLO higher than 1.25V when desired operating range. voltage below under voltage threshold, functions AP3039 disabled, system will remain power standby state. UVLO hysteresis accomplished through internal current source which switched current into impedance set-point divider. When UVLO threshold exceeded, current source activated instantly raise voltage UVLO pin. When UVLO voltage falls below threshold current source turned off, causing voltage UVLO fall. formula UVLO expresses blow: Input Threshold Voltage VIN_THRESHOLD=1.25V*(R1+R2)/R2 2008 Rev. Input Hysteresis Voltage VIN-HYSTERESIS=22A*R1
AP3039
Over Voltage Protection
AP3039 over voltage protection (OVP) circuit. connected center resistor voltage-divider from high voltage output GND. (see Figure 21). When loop open output voltage becomes excessive case, result voltage exceeds 1.25V, functions AP3039 will disabled, output voltage will fall. hysteresis accomplished with internal current source operation mode same UVLO. formula expresses blow: Voltage VOVP=1.25V*(R3+R4)/R4 Hysteresis Voltage VOVP-HYSTERESIS=22A*R3 Frequency Selection external resistor connected from GND, used operating frequency (see Figure Operation frequency range from 400kHz 1MHz (see Table High frequency operation optimizes regulator smallest component size, while frequency operation reduce switch losses.
Table Frequency Selection
Resistance Operating Frequency (kHz) 1000
Semiconductor Manufacturing Limited
Preliminary Datasheet BOOST CONTROLLER Application Information (Continued)
Soft Start AP3039 soft start circuit limit inrush current during startup. time soft start controlled internal current source external soft start capacitor connected from (see Figure 21). effective voltage Soft Start from 2.3V, time Soft Start CSS*2.3V/12A
AP3039
Typical Application
VOUT
UVLO
COUT
COMP
SHDN
AP3039
Figure AP3039 Application Circuit
2008 Rev.
Semiconductor Manufacturing Limited
Preliminary Datasheet BOOST CONTROLLER Typical Application (Continued)
AP3039
COUT
UVLO
SHDN SHDN
CIN2 0.1F
COMP
AP3608
Dimming
ISET
AGND
PGND
AP3039
AP3608 VCC=5.0V External
Digital Dimming
Dielectric SUMIDA CDR6D28MN-220NC FAIRCHILD FDC5612 FAIRCHILD SS36
Figure AP3039 AP3608 (Eight Channels Current Sink) Application Circuit
Application Circuit Simple Introduction Figure application circuit which AP3039 works with AP3608 drive array. AP3608 acts eight-channel constant current sink with current match drive LEDs. SHDN AP3608 interface terminals coordinate with AP3039. AP3608 samples voltage each channel, outputs lowest voltage strings AP3039.
When there shutdown signal AP3608 channels inactive, SHDN AP3608 outputs logic signal turn AP3039. AP3608 dimming mode, SHDN AP3608 outputs signal AP3039, which synchronous with PWM.
2008 Rev.
Semiconductor Manufacturing Limited
Preliminary Datasheet BOOST CONTROLLER Mechanical Dimensions QFN-3x3-16 Unit: mm(inch) AP3039
2.900(0.114) 3.100(0.122)
Identification
Identification
Pin1
0.180(0.007) 0.280(0.011) 2.900(0.114) 3.100(0.122) 0.450(0.018) 0.550(0.022) Bottom View Exposed
0.350(0.014) 0.450(0.018)
1.500(0.059)
1.500(0.059)
0.700(0.028) 0.900(0.035) 0.178(0.007) 0.228(0.009) 0.000(0.000) 0.050(0.002)
2008 Rev.
Semiconductor Manufacturing Limited
Semiconductor Manufacturing Limited
http://www.bcdsemi.com
IMPORTANT NOTICE Semiconductor Manufacturing Limited reserves right make changes without further notice products specifications herein. Semiconductor Manufacturing Limited does assume responsibility products particular purpose, does Semiconductor Manufacturing Limited assume liability arising application products circuits. Semiconductor Manufacturing Limited does convey license under patent rights other rights rights others.
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