FA3675F

FA3675F FA3675F s Description FA3675F is a control IC for 6-channel DC-DC converter. This IC can directly drive a Nch/Pch-MOSFET. This IC is suitable to reduce converter size because it has many functions in a small package LQFP-48. CMOS IC For Switching Power Supply Control s Dimensions, mm LQFP-48 9.0±0.3 7.0 1.45 max 0.10±0.06 25 s Features 6-channel PWM control with MOSFET direct driving : 5-channel for Pch-MOSFET, 1channel for Nch-MOSFET Low input voltage: 2.5V to 20V ±1.0% high accuracy bandgap reference Low power consumption by means of CDMOS Standby mode: 20µA(max.) Operating mode: 10mA(max.) Soft start function for each channel ON/OFF function for each channel Timer latch for short protection Undervoltage lockout Wide range of operation frequency: 50kHz to 1MHz Package: LQFP-48(Thin and small) 37 36 24 9.0±0.3 8.0 48 1 12 13 7.0 7.8 0.5±0.2 0.127 0~7 ˚ ±0.05 0.5±0.1 0.2±0.06 s Application VTR-camera, digital-steel-camera and portable equipment 122 FA3675F s Block diagram 123 FA3675F Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Pin symbol Description Power supply for control circuit Oscillator timing resistor Oscillator timing capacitor Soft start for Ch. 3 & Ch. 4 Soft start for Ch. 6 Soft start for Ch. 5 Soft start for Ch. 1 Soft start for Ch. 2 Reference voltage output Capacitor for reference voltage output Regulated voltage output Ch. 2 inverting input to error amplifier Ch. 2 output of error...