CL520中文资料Linear, Fixed Constant Current LED Driver数据手册Microchip规格书

描述 Description

The CL520 is a fixed, linear current regulator designed for driving LEDs at 20mA. With a maximum rating of 90V, it is able to withstand transients without the need for additional transient protection circuitry. It is ideally suited for applications employing single or multiple LEDs.The minimum dropout voltage of 1.0V accomodates extra LEDs, permits lower supply voltages, and provides more efficient operation.The CL520 is offered in TO-252(D-PAK) and TO-92 packages.

特性 Features

20mA ±10% constant current drive
1.0V dropout
90V rating for transient immunity
Temperature compensated
4.75 - 90V supply range

简介

CL520属于集成电路（IC）的LED驱动器。由Microchip制造生产的CL520LED 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。