DESCRIPTION

The SG6108 controller is designed for desktop PC switching mode power supplies. It provides everything

necessary to monitor and control the output of the power supply. Remote ON/OFF control, power good circuitry, over-voltage protection, over-power protection, and over-current protection are all included. The SG6108 directly senses all the output rails for over voltage conditions without requiring external dividers.

FEATURES

PC half-bridge (or 494) power supply supervisor + PWM

Highly Integrated and Few external components required

Over voltage protection 3.3V/5V/12V (two 12V)

Under voltage protection 3.3V/5V/12V (two 12V)

Under voltage protection for –12V and/or –5V

Over current protection 3.3V/5V/12V (two 12V)

Over power protection

Short circuit protection

Power-down warning circuitry

Power good circuitry

Delay time for PSON and PG signals

Remote ON/OFF function

On-Chip oscillator and Error amplifier

Latching PWM for cycle-by-cycle switching

Soft-start

Maximum 48 duty cycle

APPLICATIONS

Switching mode power supplies for computers such as ATX, NLX, and SFX (micro-ATX).