DatasheetsPDF.com

ZXLD383

Part Number	ZXLD383
Manufacturer	Diodes Incorporated
Description	SINGLE OR MULTI CELL LED DRIVER
Published	Feb 6, 2011
Detailed Description	A Product Line of Diodes Incorporated ZXLD383 SINGLE OR MULTI CELL LED DRIVER SOLUTION www.DataSheet4U.com Summary The...
Datasheet	ZXLD383 PDF File

Overview

A Product Line of Diodes Incorporated ZXLD383 SINGLE OR MULTI CELL LED DRIVER SOLUTION www.
DataSheet4U.
com 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 • • • • • • • 85% Efficiency User adjustable output current Single cell operation Low saturation voltage TSOT23-3 package Available also in die form Simple application circuit Pin Assignments TSOT23-3 ENA 1 GND 2 NC 3 (Top View) 5 VCC 4 VOUT Application • • • • • • Garden lights Door/pathway illumination LED flashlight and torches LED backlights White LED driver Gated boost supply generator Typical Application Circuit ZXLD383 Document number: DS32189 Rev.
3 - 2 1 of 10 www.
diodes.
com May 2010 © Diodes Incorporated A Product Line of Diodes Incorporated ZXLD383 www.
DataSheet4U.
com Block Diagram VC C L1 D iode Array Z XLD 383 VO U T EN A Puls e C ontrol Dch N IMH 1.
2V LED C on Coff R s ens e GN D Fig 1.
ZXLD383 Block Diagram Pin Description Pin No.
1 2 3 4 5 Name ENA GND NC VOUT VCC Description Enable / Photodiode array bat...

Similar Datasheet

ZXLD381 SINGLE OR MULTI CELL LED DRIVER SOLUTION - Diodes
ZXLD381 Single or Multi Cell LED Driver Solution - Zetex
ZXLD383 SINGLE OR MULTI CELL LED DRIVER - Diodes Incorporated

@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)