FA7711V Datasheet, PDF (4/25 Pages) Fuji Electric – FUJI Power Supply Control IC

FA7711V
1. Description
FA7711V is a PWM type DC-to-DC converter control IC with 3ch outputs that can directly drive power
MOSFETs. CMOS devices with high breakdown voltage are used in this IC and low power consumption is
achieved. This IC is suitable for very small DC-to-DC converters because of their small and thin package
(1.2mm max.), and high frequency operation (to 800kHz). You can select Pch or Nch of MOSFETs driven, and
design any topology of DC-to-DC converter circuit like a buck, a boost, a inverting, a fly-back, or a forward.
2. Features
・MOSFET direct driving ( Note : This function is available only for that Vcc is below 20V )
・Selectable output stage for Pch/Nch MOSFET on each channel
・Low operating current by CMOS process: 7mA (typ.)
・3ch PWM control IC
・High frequency operation: 200kHz to 800kHz
・Simple setting of operation frequency by timing resistor
・Soft start function at each channel
・Adjustable maximum duty cycle at each channel
・Built-in under voltage lockout
・High accuracy reference voltage: VREF: 3.7V±1%
・Adjustable built-in timer latch for short-circuit protection
・Thin and small package: TSSOP-24
3. Outline
7.8±0.1
Typ.
24
7711V
H01D02
#1
0.65
12
Lot.No.
0.27±0.02
1.0±0.1
Unit：mm
Fuji Electric Systems Co., Ltd.
AN-060E Rev.1.0
Jun-2010
4
http://www.fujielectric.co.jp/fdt/scd/