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CAT4237TD-T3 PDF预览

CAT4237TD-T3

更新时间: 2024-02-26 13:49:08
品牌 Logo 应用领域
安森美 - ONSEMI 显示驱动器驱动程序和接口接口集成电路光电二极管
页数 文件大小 规格书
13页 269K
描述
High Voltage CMOS Boost White LED Driver

CAT4237TD-T3 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SON
包装说明:1 MM HEIGHT, ROHS COMPLIANT, MO-229, TSOT-23, 5 PIN针数:5
Reach Compliance Code:unknown风险等级:5.64
接口集成电路类型:LED DISPLAY DRIVERJESD-30 代码:R-PDSO-G5
JESD-609代码:e3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封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
认证状态:COMMERCIAL座面最大高度:1 mm
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:MATTE TIN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-T3 数据手册

 浏览型号CAT4237TD-T3的Datasheet PDF文件第2页浏览型号CAT4237TD-T3的Datasheet PDF文件第3页浏览型号CAT4237TD-T3的Datasheet PDF文件第4页浏览型号CAT4237TD-T3的Datasheet PDF文件第5页浏览型号CAT4237TD-T3的Datasheet PDF文件第6页浏览型号CAT4237TD-T3的Datasheet PDF文件第7页 
CAT4237  
High Voltage CMOS Boost  
White LED Driver  
Description  
The CAT4237 is a DC/DC stepup 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 batterypowered applications. The CAT4237  
highvoltage 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 powerdown 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) 5lead thin SOT23 package for space critical  
applications.  
TSOT23  
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 = CAT4237TDT3  
UD = CAT4237TDGT3  
Y = Production Year (Last Digit)  
M = Production Month (19, 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  
CAT4237TDT3  
TSOT23  
(PbFree)  
3,000/  
Tape & Reel  
Thin SOT23 5lead (1 mm Max Height)  
(Note 1)  
These Devices are PbFree, Halogen Free/BFR Free and are RoHS  
CAT4237TDGT3  
TSOT23  
(PbFree)  
3,000/  
Tape & Reel  
Compliant  
(Note 2)  
Applications  
1. MatteTin Plated Finish (RoHScompliant).  
2. NiPdAu Plated Finish (RoHScompliant)  
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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