BCR405UW6中文资料50 to 65mA LED Constant Current Regulator in SOT26数据手册Diodes规格书

描述 Description

The BCR405UW6 monolithically integrates a transistor, diodes and resistors to function as a Constant Current Regulator (CCR) for LED driving. The device regulates with a preset 50mA nominal that can be adjusted with external resistor up to 65mA. It is designed for driving 0.25W LEDs in strings and will reduce current at increasing temperatures to self-protect. Operating as a series linear CCR for LED string current control it can be used in applications with supply voltages up to 40V.With no need for additional external components, this CCR is fully integrated into a SOT26 minimizing PCB area and component count.

特性 Features

LED Constant Current Regulator Using PNP Emitter-Follower with Emitter Resistor to Current Limit
IOUT = 50mA ± 10% constant current (Preset)
IOUT up to 65mA adjustable with an external resistor
VOUT = 40V Supply Voltage
PD up to 750mW in SOT26
Negative temperature coefficient (NTC) reduces Iout with increasing temperature
Parallel devices to increase regulated current

应用 Application

Constant current regulation (CCR) in:Emergency lighting
Signage, advertising, decorative and architectural lighting
Retail lighting in fridge, freezer case and vending machines

简介

BCR405UW6属于集成电路（IC）的LED驱动器。由制造生产的BCR405UW6LED 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。