LC5901S datasheet(3/29 Pages) SANKEN

Teilenummer	LC5901S

Bauteilbeschribung	External Phase Compensation is unnecessary

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Hersteller	SANKEN [Sanken electric]

Direct Link	http://www.sanken-ele.co.jp/en

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LC5901S DATA SHEET

Rev.1.5

Copy Right: SANKEN ELECTRIC CO., LTD.

Page.3

General Description

The LC5901S is a Buck type Single output LED driver

IC. This product realizes a high efficiency / high

precision LED drive with few add-on parts. It has the

protection function which became satisfactory, and

complies with the wide LED composition, and copes

with analog dimming and PWM dimming.

The LC5901S is an open loop average-mode current

control LED driver IC operating in a constant off-time

mode(Pulse Ratio Control: PRC). The IC features ±2%

current accuracy, tight line and load regulation of the

LED current without any need for loop compensation

or high-side current sensing and slope compensation.

The LC5901S is available in an 8-pin SOP package that

is compact and thin.

Package

SOP8

Features

Converter Block

 Operation：Average Current Mode PRC Control

 Adjustable OFF-time:1.0 to 9.0usec

 External Phase Compensation is unnecessary

LED Controller Block

 PWM dimming

 Analogue dimming

 ±2% LED Current Accuracy

Protection Functions

 LED short Protection

Pulse by Pulse

 Current Sense short Protection

Auto Restart

 VIN UVLO

Auto Restart

 Thermal shutdown(TSD)

Auto Restart

 Package : SOP8

Primary specification

Range of Input Voltage: 7V (MIN)～18V(MAX)

The OFF-time (TOFF ) is adjustable from 1.0 to

9.0μsec.

Application

 LED Back-light

 LED Lighting

 LED Light bulb

About Laser Marking

Product’s name

Lot Number

Y= The last digit of the year (0～9)

M= Manufacturing Month (1～9，O=”10”，N=”11”，D=”12”)

W= Manufacturing Week (1～5)

Campany Control Number(4 digit)

LC5901S

SK YMW

XXXX

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