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FA7630CPE

Fuji Electric
Part Number FA7630CPE
Manufacturer Fuji Electric
Description Bipolar IC For Switching Power Supply Control
Published Mar 30, 2005
Detailed Description FA7630CP(E) FA7630CP(E) s Description The FA7630CP(E) is dual channel PWM-type switching power supply control IC. This I...
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FA7630CPE
FA7630CPE

Overview
FA7630CP(E) FA7630CP(E) s Description The FA7630CP(E) is dual channel PWM-type switching power supply control IC.
This IC can drive Pch-MOSFET directly and is optimum for large power DC-DC converter.
This IC has all the necessary protection functions for a power MOSFET.
It is optimum for a portable equipment power supply which uses low-voltage input to output comparably large power.
Bipolar IC For Switching Power Supply Control s Dimensions, mm SSOP-20 20 11 s Features • Dual channel PWM-type switching power supply control • ±2.
6% (VREF) and ±3% (VB ) reference voltage • Low voltage operation (Vcc: 5 to 20V) • Drive circuit for connecting a Pch-MOSFET • Overload cutoff circuit with timer latch circuit • Soft start circuit • Undervoltage lockout function (UVLO) • Pulse-by-pulse overcurrent limiting function • Output ON/OFF control function for each channel • Master-slave synchronized operation without external components • Maximum operating frequency is 500kHz 0.
1±0.
1 7.
2 +0.
1 0.
2 –0.
05 1 10 5.
3 7.
9±0.
3 0~10˚ 0.
6 0.
3 0.
65 DIP-20 20 11 1 0.
77 24.
4 10 1.
52 2.
54min 5.
1max 3.
6 0.
51min 6.
4 2.
1max 0.
25 +0.
1 5 –0.
0 7.
62 ˚ 5˚ 0~1 2.
54±0.
25 0.
46±0.
1 0~15 s Block diagram Pin No.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Pin symbol Description Oscillator timing capacitor Oscillator timing resistor CT RT ON/OFF2 Output ON/OFF control 2 IN2+ Non-inverting input to error amplifier IN2– FB2 DT2 OCL2 GND OUT2 OUT1 VCC OCL1 DT1 FB1 IN1+ Inverting input to error amplifier Error amplifier output Dead time adjustment Overcurrent limiting circuit 2 Ground CH.
2 output CH.
1 output Power supply Overcurrent limiting circuit Dead time adjustment Error amplifier output Non-inverting input to error amplifier ON/OFF1 Output ON/OFF control 1 SYNC IN CP REF Synchronizing signal input Timer and latch circuit Reference voltage output 1 FA7630CP(E) s Absolute maximum ratings Item Maximum supply voltage Maximum output current Maximum power dissipation Junction t...


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