FA3629AV Datasheet | Fuji Electric

Description FA3629AV is a Power IC which includes DC-DC converter controller and Nch-power MOSFET. This IC can directly drive Nch/Pch MOSFET. This IC is suitable to reduce converter size because it has many functions in a small package TSSOP. CMOS IC For Switching Power Supply Control FA3629AV s Dimensions, mm TSSOP-16 16 9 s Features - Low input voltage: 2.5V to 6.5V - 40V CDMOS Process: Built-in 0.3Ω Nch-Power MOSFET(ch1, open drain) - 3-channels PWM Control: 2 boost circuits(ch1, ch2), 1 inverting circuit (ch3) - Adjustable soft start time and maximum duty cycle - Built-in timer latch for short circuit protection: Delay time = 216 / (switching frequency) - Built-in protection functions: Overcurrent limit for MOSFET, overheat protection, undervoltage lockout - Wide range of operation frequency: 100k Hz to 1MHz - Package: TSSOP-16(Thin and small) 4.4 6.4±0.1 5.2 0.07±0.05 1 8 2 0.17+0.0 - 0.04 0~8˚ 0.5±0.08 0.2±0.05 0.65 s Applications - Power supply for general equipment s Block diagram Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin symbol Description Ch.1 output of error amplifier Ch.1 inverting input to error amplifier Ch. 2 inverting input to error amplifier Ground of control blocks Ground of large power blocks Ch. 2 output of error amplifier Ch. 3 inverting input to error amplifier Ch. 3 output of error amplifier Ch. 3 output (for Pch-MOSFET) Ch. 2 output (for Nch-MOSFET) Power supply Ch.1 drain output of internal Nch-MOSFET Regulated voltage output Oscillator timing capacitor Soft start for Ch. 3 Soft start for Ch.1 and Ch. 2 FB1 IN1- IN2- GND PGND FB2 IN3- FB3 OUT3 OUT2 VCC OUT1 REG CT CS3 CS 1.1max FA3629AV s Absolute maximum ratings Item Power supply voltage Symbol Rating 6.5 40 2.8 - 400 400 - 400 400 - 50 50 - 50 50 5.0 500 - 25 to +95 125 - 40 to +125 Unit V V A m A m A m A m A m A m A m A m A V m W °C °C °C s Remended operating conditions Item Power supply voltage Output voltage of OUT1 Output current of OUT1 Oscillation frequency Ambient...