STCS1数据手册集成电路（IC）的LED驱动器规格书PDF

描述 Description

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.

An open-drain pin output provides information on load disconnection condition.

特性 Features

• LED disconnection diagnostic
• Up to 40 V input voltage
• Up to 1.5 A output current
• Less than 0.5 V voltage overhead
• Shutdown pin
• PWM dimming pin

简介

STCS1属于集成电路（IC）的LED驱动器。由制造生产的STCS1LED 驱动器器件属于 LED 驱动器电源管理集成电路 (PMIC) 系列，可通过标称固定电压的电源为负载（通常为发光二极管）提供电流，并且电流可控。它与用于电压调节的类似产品的主要区别在于，这类器件提供较低的反馈电压（以提高系统能效），而且通常可对器件工作点进行外部控制，可在照明应用中用于实现调光功能。