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CAT4237TD-GT3 PDF预览

CAT4237TD-GT3

更新时间： 2024-11-21 06:46:15
品牌 Logo 应用领域
安森美 - ONSEMI 驱动器接口集成电路光电二极管PC
页数 文件大小 规格书
13页 269K
描述
High Voltage CMOS Boost White LED Driver

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中文翻译

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CAT4237TD-GT3 技术参数

是否无铅： 不含铅生命周期：Active
零件包装代码：TSOT包装说明：VSSOP, TSOP5/6,.11,37
针数：5Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：0.9接口集成电路类型：LED DISPLAY DRIVER
JESD-30 代码：R-PDSO-G5JESD-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：8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：2.8 V
标称供电电压：3.6 V表面贴装：YES
技术：CMOS温度等级：INDUSTRIAL
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)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

CAT4237TD-GT3 数据手册

 浏览型号CAT4237TD-GT3的Datasheet PDF文件第2页浏览型号CAT4237TD-GT3的Datasheet PDF文件第3页浏览型号CAT4237TD-GT3的Datasheet PDF文件第4页浏览型号CAT4237TD-GT3的Datasheet PDF文件第5页浏览型号CAT4237TD-GT3的Datasheet PDF文件第6页浏览型号CAT4237TD-GT3的Datasheet PDF文件第7页 
CAT4237  
High Voltage CMOS Boost  
White LED Driver  
Description  
The CAT4237 is a DC/DC step−up converter that delivers an  
accurate constant current ideal for driving LEDs. Operation at a  
constant switching frequency of 1 MHz 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  
http://onsemi.com  
5
external resistor R . LED currents up to 40 mA can be supported over  
1
1
a wide range of input supply voltages from 2.8 V to 5.5 V, making the  
device ideal for battery−powered applications. The CAT4237  
high−voltage output stage is perfect for driving six, seven or eight  
white LEDs in series with inherent current matching in LCD backlight  
applications.  
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.  
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 (1 mm  
max height) 5−lead thin SOT23 package for space critical  
applications.  
TSOT−23  
TD SUFFIX  
CASE 419AE  
PIN CONNECTIONS  
1
VIN  
SW  
GND  
FB  
SHDN  
(Top View)  
MARKING DIAGRAMS  
Features  
• Drives 6 to 8 White LEDs in Series from 3 V  
• Up to 87% Efficiency  
LTYM  
UDYM  
• Low Quiescent Ground Current 0.6 mA  
• Adjustable Output Current (up to 40 mA)  
• High Frequency 1 MHz Operation  
• High Voltage Power Switch  
LT = CAT4237TD−T3  
UD = CAT4237TD−GT3  
Y = Production Year (Last Digit)  
M = Production Month (1−9, A, B, C)  
• Shutdown Current Less than 1 mA  
• Open LED Low Power Mode  
ORDERING INFORMATION  
• Automatic Shutdown at 1.9 V (UVLO)  
• Thermal Shutdown Protection  
Device  
Package  
Shipping  
CAT4237TD−T3  
TSOT−23  
(Pb−Free)  
3,000/  
Tape & Reel  
• Thin SOT23 5−lead (1 mm Max Height)  
(Note 1)  
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS  
CAT4237TD−GT3  
TSOT−23  
(Pb−Free)  
3,000/  
Tape & Reel  
Compliant  
(Note 2)  
Applications  
1. Matte−Tin Plated Finish (RoHS−compliant).  
2. NiPdAu Plated Finish (RoHS−compliant)  
• Color LCD and Keypad Backlighting  
• Cellular Phones  
• Handheld Devices  
• Digital Cameras  
• PDAs  
• Portable Game Machine  
© Semiconductor Components Industries, LLC, 2010  
1
Publication Order Number:  
February, 2010 − Rev. 2  
CAT4237/D  
 
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