STCS1A

STCS1A 1.5 A max constant current LED driver DFN8 (3 x 3 mm) PowerSO-8 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 Slope control with external cap Applications LED constant current supplying for varying input voltages Low voltage lighting Small appliances LED lighting Datasheet - production data Description The STCS1A 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. 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. Table 1. Device summary Order codes STCS1APUR STCS1APHR 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. DocID14455 Rev 3 1/19 www.st.com Contents Contents STCS1A 1 Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....