Datasheet > ZXLD383

ZXLD383

更新时间： 2022-09-09 12:16:22

品牌	Logo	应用领域
美台 - DIODES		驱动器
页数	文件大小	规格书
10页	154K
描述
SINGLE OR MULTI CELL LED DRIVER SOLUTION

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数据手册

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ZXLD383 数据手册

A Product Line of

Diodes Incorporated

ZXLD383

SINGLE OR MULTI CELL LED DRIVER SOLUTION

Summary

The ZXLD383 is a single or multi cell LED driver designed for applications requiring step-up voltage conversion from a very

low input voltage. The IC generates constant current pulses that are ideal for driving single or multiple LEDs over a wide

range of operating voltages. It includes an on/off enable input that can be driven directly from a photocell array or an open

collector/drain logic output. The enable input features an ultra-low voltage drop diode to ground, eliminating the need for a

photocell array isolation diode in Garden Light applications.

The ZXLD383 uses a PFM control technique to drive an internal switching transistor which exhibits a low saturation

resistance. This ensures high efficiency, even for input voltages as low as 1.0V.

The IC can start up under full load and operates down to an input voltage of below 0.9V.

The ZXLD383 is offered in the space saving TSOT23-5 package or in die form, offering an excellent cost vs. performance

solution for single cell LED driving applications.

Features

Pin Assignments

•

85% Efficiency

TSOT23-3

User adjustable output current

Single cell operation

Low saturation voltage

TSOT23-3 package

ENA

GND

Available also in die form

Simple application circuit

OUT

(Top View)

Application

•

Garden lights

Door/pathway illumination

LED flashlight and torches

LED backlights

White LED driver

Gated boost supply generator

Typical Application Circuit

1 of 10

www.diodes.com

May 2010

ZXLD383

Document number: DS32189 Rev. 3 - 2

12 3 4 5 6 7...10

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