FA7611CP

FA7611CP(E) FA7611CP(E) s Description The FA7611CP(E) is a bipolar IC containing basic circuit necessary for PWM-type switching power supply control. Bipolar IC For Switching Power Supply Control s Dimensions, mm SSOP-16 16 9 s Features Low-voltage operation (VCC = 3.6 to 22V) Predrivers: Totem-pole output or open-collector for CH1 and open-collector output for CH2 Latch-mode short-circuit protection function (no malfunction due to electrical noise) soft-start function Undervoltage lock-out function One capacitor shared for short circuit protection and for soft start to minimize the number of external discrete components 5.3 7.9±0.3 1 0.1±0.1 6.2 +0.1 8 0.2 –0.05 0~10˚ s Applications Battery power supply for portable equipment 0.6 0.3 0.65 DIP-16 16 9 1 0.81 19.4 1.5 8 3.1min 4.3max 0.2min 3.4 6.5 .0 0.3 –0 +0.1 5 7.6 2.54±0.25 0.5±0.1 0~15 ˚ 0~1 5˚ s Block diagram Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Pin symbol Description Oscillator timing capacitor Capacitor for soft-start, shortcircuit protection and delay Dead time adjustment Non-inverting input to error amplifier Inverting input to error amplifier Error amplifier output Ground CH. 2 Output Power supply CH. 1 Current limiting resistor CH. 1 Output Error amplifier output Inverting input to error amplifier Non-inverting input to error amplifier Reference voltage (0.5V) Dead time adjustment Reference voltage output (2.5V) CT CS DT2 IN2 (+) IN2 (–) FB2 GND OUT2 VCC OUT1R OU...