PWM CONTROLLER

DESCRIPTION

Featured Device, UTC US321S, is a PWM controller with

innovative technology. The controller can work in high voltage with

a high voltage MOS in PCB.

UTC US321S provides several protection features. It includes a

cycle-by-cycle current limit to the power switch; output over-voltage

protection; VDD UVLO protection.

FEATURES

* Integrated 650V HV start-up circuit

* Low standby power dissipation

* Under-voltage lockout (UVLO) with hysteresis

* Provides complete protection functions

Cycle-by-cycle current limit

Output over-voltage Protection