Description
The highly integrated FSL127H consists of a 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.

FEATUREs
Built-in 5ms Soft-Start Function
Internal Avalanche-Rugged 700V SenseFET
Low Audio Noise
High-Voltage Startup
Fixed PWM Frequency at 100KHz
Linearly Decreasing PWM Frequency to 18KHz
Peak-Current-Mode Control
Cycle-by-Cycle Current Limiting
Leading-Edge Blanking (LEB)
Synchronized Slope Compensation
Internal Open-Loop Protection (OLP)
VDDUnder-Voltage Lockout (UVLO)
VDDOver-Voltage Protection (OVP)
Constant Power Limit (Full AC Input Range)
Internal OTP Sensor with Hysteresis

APPLICATIONs
General-purpose switch-mode power supplies and flyback power converters, including:
SMPS for VCR, SVR, STB, DVD & VCD Player, Printer, Facsimile, & Scanner
Adapter for Camcorder