CXLE8644-2， CXLE8644-3，CXLE8644-6是一种用于单通道LED（发光二极管）恒流驱动的专用电路；CXLE8644集成了LED高压驱动电路；通过外围与LED连接实现恒流照明控制。产品性能优良，连接简单，质量可靠
采用高压功率CMOS工艺；
输出端耐压24V；
任何外围设备都是不必要的；
CXLE8644-2的电流常数为18mA（±3%）；
CXLE8644-3的电流常数为30mA（±3%）；
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[ CXLE8644-2/3 ]"
目录
1.产品概述 2.产品特点
3.应用范围 4.下载产品资料PDF文档
5.产品封装图 6.电路原理图
7.功能概述 8.相关产品
一,产品概述(General Description)
CXLE8644 is a special circuit for single-channel LED (Light Emitting Diode) constant current driver; LED high-voltage drive circuit is integrated inCXLE8644; and constant current illumination control is realized by connecting periphery with LED. The product is characterized by excellent performance,simple connection and reliable quality. SOT-23 or TO-92 package type is adopted.
二.产品特点(Features)
High-voltage power CMOS technology is adopted;
Withstand voltage at output port is 24V;
Any peripheral device is needless;
Current constant of CXLE8644-2 is 18mA （±3%）;
Current constant of CXLE8644-3 is 30mA （±3%）;
Package type is SOT-23 TO-92
三,应用范围 (Applications)
LED Constant Current Driver
四.技术规格书下载（产品PDF）
需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！
五,产品封装图 (Package)
|
Symbol |
SOT-23 |
TO-92 |
Name of pin |
Introduction |
|
NC |
1 |
1 |
Empty pin |
No internal connection |
|
OUT |
2 |
2 |
LED drive |
Control output of lighting LED; connecting LED |
|
GND |
3 |
3 |
Logic ground |
Connecting to system ground |
六.电路原理图
七,功能概述
|
Parameter |
Symbol |
Scope（typical value） |
Unit |
|
Withstand voltage at output port |
Vout |
24 |
V |
|
Power loss |
PD |
400 |
mW |
|
Operating temperature |
Topt |
-40 ～ +80 |
℃ |
|
Storage temperature |
Tstg |
-65 ～ +150 |
℃ |
八,相关芯片选择指南 更多同类产品......
|
型号 |
工作电压 |
恒流值 |
工作电流 |
压差 |
工作结温 |
封装 |
说明 |
|
2.5-24V |
18mA/30mA |
SOT-23 |
|||||
|
2.5-24V |
60mA |
SOT-89 |
|||||
|
2.8-6.5V |
30mA--1.5A |
175uA |
350mV |
-125 |
SOP-8 |
||
|
2.7V-5.5V |
10mA-1.5A/PWM调光 |
250uA |
-125 |
ESOP-8 |
输入端可以扩展接400V高压 |
||
|
4-32V |
1A/可PWM/模拟调光 |
455uA |
900mV |
-190 |
ESOP8 |
||
|
4-28V |
5mA-60mA |
400uA |
150mV |
-165 |
SOT-25 |
可接N串5-60mA LED灯串 |
|
|
2.5-40V |
30-60mA/2通道/PWM数字调光 |
400uA |
-125 |
SOT89-5 |
可接2路N串30-60mA LED灯串 |
||
|
5.0-40V |
150mA/3通道/PWM数字调光 |
450uA |
250mV |
-140 |
ESOP8 |
可接3路N串150mA LED灯串 |
|
|
2.0-40V |
60/80/100mA |
55uA |
-125 |
SOT-89 |
可接N串60/80/100mA LED灯串 |
||
|
2.5-40V |
120/150mA |
55uA |
-125 |
SOT-223 |
可接N串120/150mA LED灯串 |
||
|
3.0-40V |
350/450mA |
55uA |
-125 |
TO-252 |
可接N串350/450mA LED灯串 |
||
|
2.7-18V/输入可接高压 |
10mA-扩流2.5A |
80uA |
50mV |
-165 |
SOT89-5 |
||
