CAT32RD4

更新时间： 2024-02-18 21:15:29

品牌	Logo	应用领域
CATALYST		显示驱动器驱动程序和接口接口集成电路
页数	文件大小	规格书
14页	194K
描述
CMOS White LED Driver

阅读下载

获取价格

技术参数
数据手册

如果您发现信息不准确，欢迎纠错

CAT32RD4 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	SON
包装说明：	HVSON,	针数：	8
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.25
Is Samacsys：	N	接口集成电路类型：	LED DISPLAY DRIVER
JESD-30 代码：	S-XDSO-N8	JESD-609代码：	e0
长度：	3 mm	湿度敏感等级：	1
复用显示功能：	NO	功能数量：	1
区段数：	1	端子数量：	8
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	UNSPECIFIED	封装代码：	HVSON
封装形状：	SQUARE	封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	240	认证状态：	Not Qualified
座面最大高度：	0.8 mm	最大供电电压：	7 V
最小供电电压：	2 V	标称供电电压：	3 V
表面贴装：	YES	技术：	CMOS
温度等级：	INDUSTRIAL	端子面层：	TIN LEAD
端子形式：	NO LEAD	端子节距：	0.65 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	30
宽度：	3 mm	Base Number Matches：	1

CAT32RD4 数据手册

CAT32

CMOS White LED Driver

FEATURES

■ Low quiescent ground current (0.5mA typical)

■ Power efficiency over 80%

■ Drives up to 4 White LEDs in series

■ Shutdown current less than 1µA

■ Compatible pinout with LT1932

■ Load fault protection against open-circuits

■ Low value external components

■ Adjustable output current (up to 40mA)

■ High frequency 1.2MHz operation

■ Input voltage operation down to 2.0V

■ Low profile (1mm) 6-lead SOT23 and TDFN

(0.8mm) package

■ Low resistance (0.5Ω) high voltage

power switch

APPLICATIONS

■ Color LCD and keypad backlighting

■ Cellular phones

■ Digital cameras

■ PDAs/Games

■ Handheld terminals

■ Portable MP3 players

DESCRIPTION

The CAT32 is a DC/DC step up converter that delivers

a regulated output current. Operation at a constant

switching frequency of 1.2MHz allows the device to be

used with very small value external inductor and ceramic

capacitors.

A high voltage output stage allows up to 4 White LEDs

to be driven in series. Series drive provides inherent

current matching.

LED dimming can be done by using a DC voltage, a

logic signal, or a pulse width modulation (PWM) signal.

The shutdown input pin allows the device to be placed

in power-down mode with “near zero” quiescent current.

The CAT32 is targeted to drive multiple white light-

emitting diodes (LEDs) connected in series and provides

the necessary regulated current to control the brightness

and the color purity. An external resistor R_SETcontrols

the output current level. LED currents of up to 40mA

can be supported over a wide range of input supply

voltages from 2V to 7V, making the device ideal for

battery-powered applications.

In addition to overcurrent limiting protection, the device

also includes detection circuitry to ensure protection

against open-circuit load fault conditions.

The device is available in a low profile (1mm max height)

6-lead thin SOT23 package and in a TDFN (0.8mm max

height) package.

TYPICAL APPLICATION

VIN

2.7V to 4.2V

VIN

CAT32

PWM

DIMMING

CONTROL

LED

SHDN

GND

RSET

15mA

C1: Taiyo Yuden JMK212BJ475

C2: Taiyo Yuden EMK212BJ105

D1: Zetez ZHCS400

SOT23 Pin Numbers

L1: Sumida CLQ4D106R8

(Panasonic ELJEA6R8)

Figure 1. Li-Ion Driver for Four High-Brightness White LEDs

Characteristics subject to change without notice

Doc No. 5001, Rev. AC

12 3 4 5 6 7...14

下载PDF

与CAT32RD4相关器件

型号	品牌	描述	获取价格	数据表
CAT32RD4-TE13	ONSEMI	LED DISPLAY DRIVER, DSO8, 3 X 3 MM, 0.80 MM HEIGHT, TDFN-8	获取价格
CAT32RD4-TE7	CATALYST	CMOS White LED Driver	获取价格
CAT32T3TDI-G	ONSEMI	CMOS White LED Driver	获取价格
CAT32TDIGT3	ONSEMI	CMOS White LED Driver	获取价格
CAT32TDI-GT3	ONSEMI	CMOS White LED Driver	获取价格
CAT32TDI-GT3	CATALYST	CMOS White LED Driver	获取价格

产品中心

服务支持

精选活动

关于我们

帮助中心

CAT32RD4

CAT32RD4 技术参数

CAT32RD4 数据手册

与CAT32RD4相关器件

与CAT32RD4相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

CAT32RD4

CAT32RD4 技术参数

CAT32RD4 数据手册

与CAT32RD4相关器件

与CAT32RD4相关文章

您还可以找

您在本页遇到什么问题？