STMicroelectronics STCS05A
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.FEATURES
● Up to 40 V input voltage● Less than 0.5 V voltage overhead
● Up to 0.5 A output current
● PWM dimming pin
● Shutdown pin
● LED disconnection diagnostic
APPLICATIONS
● LED constant current supplying for varying input voltages● Low voltage lighting
● Small appliances LED lighting Datasheet - production data
DESCRIPTION
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. Order code STCS05ADR Table 1. Device summary Package SO-8 Packing 2500 parts per reel April 2022 This is information on a product in full production. DocID14510 Rev 4 1/18 Contents Contents STCS05A 1 Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .