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CAT4137

更新时间: 2024-01-14 12:15:35
品牌 Logo 应用领域
安森美 - ONSEMI 驱动器转换器升压转换器
页数 文件大小 规格书
16页 170K
描述
CMOS Boost Converter - White LED Driver

CAT4137 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:SOT-23
包装说明:1 MM HEIGHT, SOT-23, 5 PIN针数:5
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.09
接口集成电路类型:LED DISPLAY DRIVERJESD-30 代码:R-PDSO-G5
JESD-609代码:e0长度:2.9 mm
湿度敏感等级:1复用显示功能:NO
功能数量: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):240
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:2.2 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:TIN LEAD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:30宽度:1.625 mm
Base Number Matches:1

CAT4137 数据手册

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CAT4137  
CMOS Boost Converter -  
White LED Driver  
Description  
The CAT4137 is a DC/DC step-up converter that delivers a  
regulated output current. Operation at a constant switching frequency  
of 1 MHz allows the device to be used with small value external  
ceramic capacitors and inductor.  
http://onsemi.com  
The device drives a string of white LEDs connected in series and  
provides the regulated current to control the LEDs with inherent  
uniform brightness and matching. An external resistor R1 sets the  
output current and allows up to 30 mA current to be supported over a  
wide range of input supply voltages from 2.2 V to 5.5 V, making the  
device ideal for battery-powered applications.  
5
1
TSOT23  
TD SUFFIX  
CASE 419AE  
LED dimming can be done by using a DC voltage, a logic signal, or  
a pulse width modulation (PWM) signal. The shutdown control 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) 5lead thin SOT23 package for space critical  
applications.  
PIN CONNECTIONS  
1
VIN  
SW  
GND  
FB  
SHDN  
(Top View)  
MARKING DIAGRAMS  
Features  
Drives up to 5 White LEDs from 3 V  
Power Efficiency up to 87%  
LXYM  
UEYM  
Low Quiescent Ground Current 0.1 mA  
Adjustable Output Current (up to 30 mA)  
High Frequency 1 MHz Operation  
“Zero” Current Shutdown Mode  
Operates Down to 2 V (from Two AA Batteries)  
Soft Start Powerup  
LX = CAT4137TDT3  
UE = CAT4137TDGT3  
Y = Production Year (Last Digit)  
M = Production Month (19, A, B, C)  
Open LED Low Power Mode  
ORDERING INFORMATION  
Automatic Shutdown at 1.9 V (UVLO)  
Thermal Shutdown Protection  
Thin SOT23 5lead (1 mm Max Height)  
These Devices are PbFree, Halogen Free/BFR Free and are RoHS  
Compliant  
Device  
Package  
Shipping  
CAT4137TDT3  
TSOT23  
(PbFree)  
3,000/  
Tape & Reel  
(Note 1)  
CAT4137TDGT3  
TSOT23  
(PbFree)  
3,000/  
Tape & Reel  
(Note 2)  
1. MatteTin Plated Finish (RoHScompliant).  
2. NiPdAu Plated Finish (RoHScompliant)  
Applications  
LCD Backlighting  
Cellular Phones  
Handheld Devices  
Digital Cameras  
© Semiconductor Components Industries, LLC, 2010  
1
Publication Order Number:  
February, 2010 Rev. 2  
CAT4137/D  
 

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