FSHD321 Datasheet - Fairchild Semiconductor

FSHD321 Green Mode Fairchild Power Switch

The FSDx321(x stands for H, L) are integrated Pulse Width Modulators (PWM) and Sense FETs specifically designed for high performance offline Switch Mode Power Supplies (SMPS) with minimal external components. Both devices are integrated high voltage power switching regulators which combine an avalan.

FSHD321 Features

* Internal Avalanche Rugged Sense FET

* Consumes only 0.65W at 240VAC & 0.3W load with Advanced Burst-Mode Operation

* Frequency Modulation for low EMI

* Precision Fixed Operating Frequency

* Internal Start-up Circuit

* Pulse by Pulse Current Limiting

FSHD321_FairchildSemiconductor.pdf