STMICROELECTRONICSSTCS05ADRSTCS05ADR

The STCS05A is a BiCMOS constant current source designed to provide a precise constant current starting from a varying input voltage source. The main target is to replace discrete components solution for driving LEDs in low voltage applications such as 5 V, 12 V or 24 V giving benefits in terms of precision, integration and reliability. The current is set with external resistor up to 0.5 A with a ± 10 % precision

a dedicated pin allows implementing PWM dimming. An external capacitor allows setting the slope for the current rise from tens of microseconds to tens of milliseconds allowing reduction of EMI. An open-drain pin output provides information on load disconnection condition.

Slope control with external cap

LED disconnection diagnostic

Up to 40 V input voltage

Up to 0.5 A output current

Less than 0.5 V voltage overhead

Shutdown pin

PWM dimming pin

Applications

LED constant current supplying for varying input voltages

Low voltage lighting

Small appliances LED lighting

Car LED lights