Description

The FSL126HR integrated Pulse Width Modulator (PWM) and SenseFET is specifically designed for high performance offline Switch-Mode Power Supplies (SMPS) with minimal external components. FSL126HR includes integrated high-voltage power switching regulators that combine an avalanche-rugged SenseFET with a current-mode PWM control block.

Features

■ Internal Avalanche-Rugged SenseFET (650V)

■ Under 50mW Standby Power Consumption at 265VAC, No-load Condition with Burst Mode

■ Precision Fixed Operating Frequency with Frequency Modulation for Attenuating EMI

■ Internal Startup Circuit

■ Built-in Soft-Start: 20ms

■ Pulse-by-Pulse Current Limiting

■ Various Protections: Over-Voltage Protection

(OVP), Overload Protection (OLP), Output-Short

Protection (OSP), Abnormal Over-Current

Protection (AOCP), Internal Thermal Shutdown

Function with Hysteresis (TSD)

■ Auto-Restart Mode

■ Under-Voltage Lockout (UVLO)

■ Low Operating Current: 1.8mA

■ Adjustable Peak Current Limit

Applications

■ SMPS for VCR, STB, DVD, & DVCD Players

■ SMPS for Home Appliance

■ Adapter