FA7764 Datasheet, PDF (4/18 Pages) Fuji Electric – FUJI Power Supply Control IC

FA7764
1. Overview
The FA7764N is a single output step-down DC-DC converter with built-in power MOSFET.
Featuring a high voltage process, it is suitable for the DC-DC converter with input voltages of up to 45 V and
output currents of up to 1.5 A.
It operates with the current mode control and also it can reduce external parts. Furthermore it achieves a fast
response.
The circuit protections are built-in to achieve safety power supply circuit.
2. Features
- Single output with the built-in power MOSFET.
- High efficiency 85% at 24V input and 5 V/1.2 A output with 200kHz operation.
- Stable operation with current mode control.
- Switching frequency selectable from 30 kHz to 400 kHz.
- ON/OFF function: Current consumption 0.1mA(max.) at OFF mode.
- Current consumption of the VCC terminal during operation is 0.5mA(typ.).
- Protection functions:
Over current limitation for the power MOSFET
Soft start (8 ms)
Short-circuit protection with the timer and latch (90ms delay time)
Thermal shut down
Protection for opened rectifier diode
- SOP-8pin package with the exposed pad.
3. Outline
・FA7764AN(SOP-8 E-Pad)
・FA7764P(DIP-8)
7764A
1D09512
5.0±0.25
8
5
1
4
9.4±0.3
0.40 ±0.1
1.27
(3.10)
Fuji Electric Systems Co., Ltd.
AN-059E Rev.1.0
June.2010
2.54
2.54×3=7.62
0.5±0.1
0.25 ±0.1
7.6
Units : mm
4
http://www.fujielectric.co.jp/fdt/scd/