FA3641N 데이터 시트보기 (PDF) - Fuji Electric

부품명

상세내역

제조사

FA3641N

PWM control IC with light load power saving function For Switching Power Supply Control

Fuji Electric 

FA3641P(N), FA3647P(N) FA3641P(N), FA3647P(N)

PWM control IC with light load power saving function

For Switching Power Supply Control

s Description

The FA3641P(N) and FA3647P(N) are the PWM type switching

power supply control ICs that can directly drive power MOSFET.

These ICs use a CMOS device with high dielectric strength

(30V) to implement low power consumption. They feature a

number of functions that are equivalent to those of the FA531X

series consisting of bipolar devices. In addition, they have a

function that reduces the oscillation frequency to suppress loss

of the power supply in light load mode and support an

overvoltage protection detecting Vcc voltage. These ICs are

most suitable for high-performance, energy-saving power

supplies that require low input power in standby or no-load

mode.

s Features

• Uses a newly developed CMOS process with high dielectric

strength (30V) for implementing low power consumption

• Standby current of 2µA or less (at Vcc=14V), and operating

current of 1.9mA (typ.)

• Automatically reduces the oscillation frequency to suppress

loss of the power supply in light load mode

• Overvoltage protection function detecting Vcc voltage

• A drive circuit for connecting a power MOSFET directly

• Output peak current: Source current –500mA

Sink current

+1A

• Pulse-by-pulse overcurrent limiting function

• Overload cutoff function (latch or non-latch mode selectable)

• Output ON/OFF control function by external signal

• Latch mode overvoltage shutdown function

• Undervoltage lockout function

(16.5V ON / 9V OFF)

• Reference voltage output (5V)

• 8-pin package (DIP/SOP)

s Dimensions, mm

SOP-8

8

5

1

4

4.9

0.4±0.1 1.27±0.2

DIP-8

8

5

1 9.3 4

1.5

2.54±0.25 0.46±0.1

7.62

0~15˚

0.25+–00.1.05

0~15˚

58

Share Link: