ZXSC400中文资料low-voltage-dc-dc-led-drivers数据手册Diodes规格书

描述 Description

The ZXSC400 is a voltage mode boost converter in the SOT26 package. Its low feedback voltage allows the current in a chain of LEDs to be set and accurately monitored with a single resistor giving minimal losses. Its excellent load and line regulation means that for the full supply range from lithium-ion cells, the LED current will typically change by less than 1%. Using high efficiency Zetex switching transistors with ratings of 20V and higher allow many LEDs to be chained in series for the best LED current matching possible.

特性 Features

1.8V to 8V supply range
Typical output regulation of ±1%
Over 80% typical efficiency
4.5μA typical shutdown current
Series connection for ultimate LED current matching

应用 Application

White LED backlighting for colour LCD panels
General LED backlighting
High performance white LED flashlights
General LED driving from batteries

简介

ZXSC400属于集成电路（IC）的LED驱动器。由制造生产的ZXSC400LED 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。