Datasheet > CAT4238TD-GT3

CAT4238TD-GT3

更新时间： 2024-01-08 15:00:34

品牌	Logo	应用领域
CATALYST		转换器接口集成电路光电二极管驱动升压转换器 PC
页数	文件大小	规格书
14页	280K
描述
High Efficiency 10 LED Boost Converter

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

CAT4238TD-GT3 技术参数

是否Rohs认证：	符合	生命周期：	Transferred
零件包装代码：	TSOT	包装说明：	VSSOP, TSOP5/6,.11,37
针数：	5	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.39	接口集成电路类型：	LED DISPLAY DRIVER
JESD-30 代码：	R-PDSO-G5	JESD-609代码：	e4
长度：	2.9 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：	5
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	VSSOP
封装等效代码：	TSOP5/6,.11,37	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	260
电源：	3.6 V	认证状态：	Not Qualified
座面最大高度：	1 mm	子类别：	Display Drivers
最大供电电压：	5.5 V	最小供电电压：	3 V
标称供电电压：	3.6 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	NICKEL PALLADIUM GOLD
端子形式：	GULL WING	端子节距：	0.95 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	40
宽度：	1.6 mm	Base Number Matches：	1

CAT4238TD-GT3 数据手册

CAT4238

High Efficiency 10 LED Boost Converter

FEATURES

DESCRIPTION

Drives High Voltage LED strings (38V)

The CAT4238 is a DC/DC step-up converter that delivers

an accurate constant current ideal for driving LEDs.

Operation at a fixed switching frequency of 1MHz allows

the device to be used with small value external ceramic

capacitors and inductor. LEDs connected in series are

driven with a regulated current set by the external resistor

R1. LED currents up to 40mA can be supported over a

wide range of input supply voltages up to 5.5V, making

the device ideal for battery-powered applications. The

CAT4238 high-voltage output stage is perfect for driving

mid-size and large panel displays containing up to ten

white LEDs in series.

Up to 87% Efficiency

Low Quiescent Ground Current 0.6mA

Adjustable Output Current

1MHz Fixed Frequency Low noise Operation

Soft start “in-rush” current limiting

Shutdown current less than 1μA

Open LED Overvoltage Protection

Automatic Shutdown at 1.9V (UVLO)

Thermal overload protection

Thin SOT23 5-Lead (1mm max height)

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 “zero” quiescent current.

APPLICATIONS

GPS Navigation Systems

Portable Media Players

Handheld Devices, Digital Cameras

Portable Game Machines

In addition to thermal protection and overload current

limiting, the device also enters a very low power

operating mode during “Open LED” fault conditions. The

device is housed in a low profile (1mm max height) 5-lead

thin SOT23 package for space critical applications.

ORDERING INFORMATION

Quantity Package

per Reel Marking

Part Number

Package

TSOT23-5

Green*

CAT4238TD-GT3

3000

* NiPdAu Plated Finish

For Ordering Information details, see page 13.

TYPICAL APPLICATION CIRCUIT

PIN CONFIGURATION

VOUT

5-Lead Thin SOT23

(1mm max height)

VIN

47µH

4.7µF

GND

VIN

0.22µF

VIN

CAT4238

SHDN FB

GND

SHDN

(300mV)

20mA

OFF ON

15Ω

L: Sumida CDC5D23B-470

D: Central CMDSH05-4

C2: Taiyo Yuden UMK212BJ224 (rated 50V)

Characteristics subject to change without notice

Doc. No. 5019 Rev. A

12 3 4 5 6 7...14

下载PDF

与CAT4238TD-GT3相关器件

型号	品牌	描述	获取价格	数据表
CAT4240	CATALYST	6 Watt Boost LED Driver	获取价格
CAT4240	ONSEMI	6 Watt Boost LED Driver	获取价格
CAT4240_0711	CATALYST	6 Watt Boost LED Driver	获取价格
CAT4240TD-GT3	CATALYST	6 Watt Boost LED Driver	获取价格
CAT4240TD-GT3	ONSEMI	6 Watt Boost LED Driver	获取价格
CAT431L	CATALYST	Low-Voltage Adjustable Precision Voltage Reference	获取价格

产品中心

服务支持

精选活动

关于我们

帮助中心

CAT4238TD-GT3

CAT4238TD-GT3 技术参数

CAT4238TD-GT3 数据手册

与CAT4238TD-GT3相关器件

与CAT4238TD-GT3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

CAT4238TD-GT3

CAT4238TD-GT3 技术参数

CAT4238TD-GT3 数据手册

与CAT4238TD-GT3相关器件

与CAT4238TD-GT3相关文章

您还可以找

您在本页遇到什么问题？