STMicroelectronics STCS1
The STCS1 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 1.5 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 1.5 A output current
● PWM dimming pin
● Shutdown pin
● LED disconnection diagnostic
APPLICATIONS
● Supplying LEDs with constant current for varying input voltages● Low voltage lighting
● Small appliance LED lighting Datasheet - production data
DESCRIPTION
An open-drain pin output provides information on load disconnection condition. Table 1. Device summary Order codes STCS1PUR STCS1PHR Packages DFN8 (3 x 3 mm) PowerSO-8 Packaging 3000 parts per reel 2500 parts per reel January 2022 This is information on a product in full production. DocID13415 Rev 9 1/17 Contents Contents STCS1 1 Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .