BH0270A Datasheet – Green Mode Fairchild Power Switch

Part Number : BH0270A

Function : Green Mode Fairchild Power Switch (FPS™)

Manufacturers : Fairchild Semiconductor

Pinouts :

BH0270A datasheet

 

Description :

The highly integrated FSBH-series consists of an integrated current-mode Pulse Width Modulator (PWM) and an avalanche-rugged 700V SenseFET. It is specifically designed for high-performance offline Switch Mode Power Supplies (SMPS) with minimal external components.

The integrated PWM controller features include a proprietary green-mode function that provides off-time modulation to linearly decrease the switching frequency at light-load conditions to minimize standby power consumption. To avoid acoustic-noise problems, the
minimum PWM frequency is set above 18kHz. This green-mode function enables the power supply to meet international power conservation requirements.

The PWM controller is manufactured using the BiCMOS process to further reduce power consumption. The FSBH-series turns off some internal circuits to improve power saving when VFBis lower than 1.6V, which allows an operating current of only 2.5mA.

 

Features

1. Brownout Protection with Hysteresis
2. Built-In 5ms Soft-Start Function
3. Internal Avalanche-Rugged 700V SenseFET
4. No Acoustic Noise During Light-Load Operation
5. High-Voltage Startup
6. Linearly Decreasing PWM Frequency to 18KHz
7. Peak-Current-Mode Control

Other data sheets within the file :

BH0170, BH0170A, BH0270, BH0370

 

BH0270A Datasheet PDF Download


BH0270A pdf