FAIRCHILD FSBH0F70A FSBH0170/A FSBH0270/A FSBH0370 Green Mode Fairchild Power Switch (FPS ) handbook

About this manual

The 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 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.

What's inside

• Features
• Applications
• Description
• Ordering Information
• Internal Block Diagrams
• Pin Configuration
• Absolute Maximum Ratings
• Recommended Operating Conditions
• Electrical Characteristics

Specifications

Frequently asked questions

What is the minimum PWM frequency?

The minimum PWM frequency is set above 18kHz to avoid acoustic-noise problems.

What is the typical operating current when Vrs is lower than 1.6V?

The operating current is only 2.5mA when Vrs is lower than 1.6V.

What is the constant output power limit AC input range?

The constant output power limit is over a wide AC input voltage range, from 90Vac to 264Vac.