RT9302 datasheet(1/9 Pages) RICHTEK

tên linh kiện	RT9302

Giải thích chi tiết về linh kiện	60mA 3-Channel Pulse Dimming Current Source LED Driver

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nhà sản xuất	RICHTEK [Richtek Technology Corporation]

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RT9302

1

DS9302-02

March 2007

www.richtek.com

Marking Information

For marking information, contact our sales representative

directly or through a RichTek distributor located in your

area, otherwise visit our website for detail.

60mA 3-Channel Pulse Dimming Current Source LED Driver

Features

Support Up to 3 White LEDs

Output Current up to 20mA Each Channel

Support Pulse and PWM Dimming

40mV Typical Current Source Dropout

1% Typical LED Current Accuracy

0.7% Typical LED Current Matching

16-Step Brightness Control

Low Noise and EMI

Low Shutdown Current 4

μμμμμA Typical

RoHS Compliant and 100% Lead (Pb)-Free

Applications

Mobile Phone, DSC, MP3

White LED Backlighting

LCD Display Supply

General Description

The RT9302 is a high performance constant current driver

for white LED. It supports up to 3 white LEDs and regulates

a constant current for uniform intensity. Each channel

supports up to 20mA output current with 1% typical current

accuracy and 0.7% typical current matching. The RT9302

provides a 16-step brightness dimming control. The LED

current can be easily configured from 1.25mA to 20mA.

The dimming of white LEDs' current can be achieved by

applying a pulse signal to the EN pin. The LED current

can be turned off by EN pin with pull low for 20

μs or longer.

The typical leakage current is 4

μA while shutdown

condition.

RT9302 is available in a TSOT-23-8 package (1.0mm

maximum height).

Ordering Information

Note :

RichTek Pb-free and Green products are :

RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

Suitable for use in SnPb or Pb-free soldering processes.

100% matte tin (Sn) plating.

(TOP VIEW)

TSOT-23-8

Pin Configurations

5

2

3

7

8

1

4

6

Note : There is no pin1 indicator on top mark for TSOT-23-8

type, and pin 1 will be lower left pin when reading top mark

from left to right.

RT9302

Package Type

J8 : TSOT-23-8

Operating Temperature Range

P : Pb Free with Commercial Standard

G : Green (Halogen Free with Commer-

cial Standard)

Số phần tương tự - RT9302

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Richtek Technology Corp...	RT9302	128Kb / 9P	60mA 3-Channel Pulse Dimming Current Source LED Driver

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