Datasheet > WhiteLED> RT9302

RT9302

更新时间： 2024-01-20 14:32:33

品牌	Logo	应用领域
立锜 - RICHTEK		驱动器光电白色LED灯脉冲
页数	文件大小	规格书
9页	124K
描述
60mA 3-Channel Pulse Dimming Current Source LED Driver

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技术参数
数据手册

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RT9302 技术参数

Status：	Active	Vin (min) (V)：	2.8
Vin (max) (V)：	5.5	SW Freq (typ) (kHz)：
Number of LEDs (max) (pcs)：	3	Iout (max)/channel (mA)：	20
Iq (typ) (mA)：	0.4	Dimming Control：	PWM
Topology：		Features：	Enable Input
Package Type：	TSOT-28	Datasheet：	https://datasheet5.oss-cn-shanghai.aliyuncs.com/datasheets/richtek/DS9302-04.pdf

RT9302 数据手册

RT9302

60mA 3-Channel Pulse Dimming Current Source LED Driver

General Description

Features

^zSupport Up to 3 White LEDs

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 ENpin with pull low for 20μs or longer.

The typical leakage current is 4μA while shutdown

condition.

^zOutput Current up to 20mA Each Channel

^zSupport Pulse and PWM Dimming

^z40mV Typical Current Source Dropout

^z1% Typical LED Current Accuracy

^z0.7% Typical LED Current Matching

^z16-Step Brightness Control

^zLow Noise and EMI

^zLow Shutdown Current 4μA Typical

^zRoHS Compliant and 100% Lead (Pb)-Free

Applications

z Mobile Phone, DSC, MP3

z White LED Backlighting

z LCDDisplay Supply

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

maximum height).

Ordering Information

RT9302

Pin Configurations

Package Type

J8 : TSOT-23-8

(TOP VIEW)

Operating Temperature Range

P : Pb Free with Commercial Standard

G : Green (Halogen Free with Commer-

cial Standard)

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.

TSOT-23-8

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.

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.

DS9302-02 March 2007

www.richtek.com

12 3 4 5 6 7...9

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