Description

The CS3845B provides all the necessary features to implement off-line fixed frequency current-mode control with a minimum number of external components.

Features

■ Optimized for Off-line Use

■ Temperature Compensated Oscillator

■ 50 Maximum Duty-cycle Clamp

■ Low Start-up Current (500µA max)

■ Pulse-by-pulse Current Limiting

■ Undervoltage Active Pull Down

■ Double Pulse Suppression

■ 1 Trimmed Bandgap Reference

■ High Current Totem Pole Output