Description

The CS5124/6 is a fixed frequency current mode controller designed specifically for DC-DC converters found in the telecommunications industry. The CS5124/6 integrates many commonly required current mode power supply features and allows the power supply designer to realize substantial cost and board space savings.

Features

■ Line UVLO Monitoring

■ Low Current Sense Voltage for Resistive Current Sensing

■ External Synchronization to Higher or Lower Frequency Oscillator (CS5126 Only)

■ Bias for Start up Circuitry (CS5124 Only)

■ Thermal Shutdown

■ Sleep On/Off Pin

■ Soft Start Timer

■ Leading Edge Blanking

■ Direct Optocoupler Interface

■ 90ns Propagation Delay

■ 35ns Driver Rise and Fall Times

■ Sleep Mode