Datasheet > CAT4004B

CAT4004B

更新时间： 2024-11-26 01:07:23

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
12页	178K
描述
Constant Current Programmable LED Driver

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

CAT4004B 数据手册

CAT4003B, CAT4004B

Constant Current

Programmable LED Driver

with 32 Dimming Levels

Description

http://onsemi.com

The CAT4003B and CAT4004B provide respectively three and four

matched low dropout current sources to drive LEDs. The CAT400XB

requires no external RSET resistor. The LED current is internally set

to 25 mA when the device is first enabled. Each LED channel includes

an individual control loop allowing the device to handle a wide range

of LED forward voltages while still maintaining tight current

matching.

The EN/DIM logic input supports the device enable and a digital

dimming interface for setting the LED channel current with 32 linear

dimming levels.

UDFN−8

TSOT23−6

TD SUFFIX

CASE 419AF

HU2 SUFFIX

CASE 517AW

LEDs can be powered directly from a Lithium−ion battery due to the

low dropout (75 mV at 20 mA) current sinks.

Package options are available in the 4−channel tiny 8−pad UDFN

2 mm x 2 mm with a max height of 0.55 mm, and 3− channel in the

6−lead TSOT−23, TSOP and SC−70.

SC70−6

SD SUFFIX

CASE 419AD

TSOP−6

TS SUFFIX

CASE 318G

Features

• 3, 4 LED Current Sinks with Tight Matching

• 32 Dimming Levels

TYPICAL APPLICATION CIRCUIT

• Low Dropout Driver 75 mV at 20 mA

• No Switching Noise

VIN

• Shutdown Current less than 1 mA

• 25 mA Max LED Current per Channel

• Dimming via 1−wire EZDim Interface

• Thermal Shutdown Protection

• RoHS Compliant

2.4 V

5.5 V

1 mF

LED1 LED2 LED3

VIN

• 6−lead TSOT−23, TSOP, SC−70, and 8−pad UDFN 2 mm x 2 mm

CAT4003B

Packages

One Wire

Programming

32 Steps

EN/DIM

Typical Applications

• LCD Display Backlight

• Cellular Phones

GND

• Digital Still Cameras

This document contains information on some products that are still under development.

ON Semiconductor reserves the right to change or discontinue these products without

notice.

ORDERING INFORMATION

See detailed ordering information on page 2 of this data

sheet.

Publication Order Number:

January, 2012 − Rev. 2

CAT4003B/D

12 3 4 5 6 7...12

中文翻译

下载PDF

与CAT4004B相关器件

型号	品牌	获取价格	描述	数据表
CAT4004BHU2-GT3	ONSEMI	获取价格	Constant Current Programmable LED Driver with 32 Dimming Levels
CAT4004VP2-GT3	ONSEMI	获取价格	4-Channel Constant Current LED Driver with EZDim
CAT4004VP2-GT3	CATALYST	获取价格	4-Channel Constant Current LED Driver with EZ
CAT4004VP2-T3	ONSEMI	获取价格	4-Channel Constant Current LED Driver with EZDim
CAT4004VP2-T3	CATALYST	获取价格	4-Channel Constant Current LED Driver with EZDi TM
CAT4008	ONSEMI	获取价格	8-Channel Constant Current LED Driver
CAT4008	CATALYST	获取价格	8-Channel Constant Current LED Driver
CAT4008V-T1	CATALYST	获取价格	8-Channel Constant Current LED Driver
CAT4008V-T1	ONSEMI	获取价格	8-Channel Constant Current LED Driver
CAT4008W-T2	ONSEMI	获取价格	8-Channel Constant Current LED Driver