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