CXLE8614是一种带功率因数调制（PFM）的单片高压开关稳压器，专门设计用于在24伏~100伏直流电源下工作。
CXLE8614是一种高效率的LED驱动开关稳压器，采用直流恒流驱动而非恒压驱动，提供恒流输出，提高了可靠性
宽24V至100V输入电压范围
0.2V电流感应电压参考。
直接驱动3~8系列1W LED。
良好的线路和负载调节。
效率高达96%。
最小压降6V。
内部优化功率高压MOSFET。
内置热关机功能。
内置UVLO功能。
内置限流功能。
内置LED开路和短路保护。
内置软启动电路。
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[ CXLE8614 ]"
目录
1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载（产品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)
The CXLE8614 is a monolithic high voltage switching regulator with
PFM that is specifically designed to operate from a 24V~100V DC supply.
The CXLE8614 is a high efficiency LED driver switching regulator.
The LED string is driven at DC constant current rather than constant
voltage, thus providing constant current output and enhanced reliability.
二.产品特点(Features)
Wide 24V to 100V Input Voltage Range
0.2V current sense voltage reference.
Directly drive 3~8 series 1W LED.
Excellent line and load regulation.
High efficiency up to 96%.
Minimum Drop Out 6V.
Internal optimize power HV-MOSFET.
Built in thermal shutdown function.
Built in UVLO function.
Built in current limiting function.
Built in LED open & short protection.
Built in soft-start circuit.
Available in SOP8L package.
三,应用范围 (Applications)
EBIKE LED Lighting
LED Lighting & LED LAMP
General purpose lighting
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)
|
Pin Number |
Pin Name |
Description |
|
1 |
NC |
No Connected. |
|
2 |
VDD |
The chip supply voltage. |
|
3 |
CSP |
Current Sense Positive Terminal. |
|
4 |
SW |
Output Switching Pin |
|
5, 6 |
VIN |
Input high voltage Pin. (Operation voltage 24V~ 100V) |
|
7, 8 |
CSN |
Current Sense Negative Terminal. |
六.电路原理图
七,功能概述
|
Parameter |
Symbol |
Value |
Unit |
|
Input Voltage |
Vin |
-0.3 to 120 |
V |
|
Power Dissipation |
PD |
Internally limited |
mW |
|
Thermal Resistance (SOP-8L) |
RJA |
100 |
oC/W |
|
Operating Junction Temperature |
TJ |
-40 to 125 |
oC |
|
Storage Temperature |
TSTG |
-65 to 150 |
oC |
|
Lead Temperature (Soldering, 10 sec) |
TLEAD |
260 |
oC |
|
ESD (HBM) |
3000 |
V |
八,相关芯片选择指南
|
降压型LED恒流驱动器芯片(高电压型) |
||||||
|
12V ~ 80V |
1~18LED串 |
1A |
PFM |
Adj (0.1V) |
TO263-5L |
|
|
24V ~ 80V |
3~14LED串 |
1A |
PFM |
Adj (0.2V) |
TO252-5L |
|
|
24V ~ 100V |
3~8LED串 |
0.5A |
PFM |
Adj (0.2V) |
SOP8L |
|
