STCS05A中文资料最大0.5A恒定电流LED驱动器数据手册ST规格书

描述 Description

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.

特性 Features

• 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

简介

STCS05A属于集成电路（IC）的LED驱动器。由制造生产的STCS05ALED 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。