Cxle8433a cxle8433b is a kind of LED constant current driver chip with high precision primary side feedback. The chip works in the discontinuous mode of inductive current, which is suitable for the flyback isolated LED constant current power supply with the input voltage of 85vac ~ 265vac and the power below 3W.
Cxle8433a cxle8433b chip is internally integrated with 650V power switch, which adopts patented demagnetization detection technology and high-voltage power supply technology, without the detection and power supply of auxiliary winding, making its peripheral devices simpler and saving the cost and volume of the system.
Cxle8433a cxle8433b chip has high-precision current sampling circuit, and adopts patented constant current control technology to achieve high-precision LED constant current output and excellent line voltage regulation rate.
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[ CXLE8434A ]"
目录
产品概述 返回TOP
CXLE8434A CXLE8434B是一款高精度原边反馈的LED恒流驱动 芯片。芯片工作在电感电流断续模式，适用于85Vac~265Vac全范围输入电压、功率 3W 以下的反激型隔离LED恒流电源。
CXLE8434A CXLE8434B芯片内部集成 650V 功率开关，采用专利 的退磁检测技术和高压供电技术，无需辅助绕组 的检测和供电，使其外围器件更简单，节约了系 统的成本和体积。
CXLE8434A CXLE8434B芯片带有高精度的电流采样电路，同时 采用了专利的恒流控制技术，实现高精度的 LED 恒流输出和优异的线电压调整率。
CXLE8434A CXLE8434B具有多重保护功能，包括 LED 开路/短路 保护，欠压保护，芯片温度过热调节功能等。
CXLE8434A CXLE8434B采用 SOP8 封装。
产品特点 返回TOP
采用 SOP8 封装
内部集成 650V 功率管
原边反馈恒流控制，无需次级反馈电路
集成高压供电功能
无需辅助绕组检测和供电
宽输入电压
±6% LED 输出电流精度
LED 开路/短路保护
芯片供电欠压保护
过热调节功能
应用范围 返回TOP
GU10 LED 射灯
LED 球泡灯
其它 LED 照明
技术规格书（产品PDF) 返回TOP
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！
产品封装图 返回TOP
电路原理图 返回TOP
相关芯片选择指南 返回TOP 更多同类产品......
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AC/DC隔离低PF |
||||||||
|
Part |
PF |
Number of |
Internal MOS |
Internal MOS |
Open circuit |
Pout@Vin: |
Pout@Vin: |
Package |
|
number |
windings |
Rdson（Ω） |
BVDSS（V） |
protection |
85-265V（W) |
176-265V（W) |
||
|
0.5 |
2 |
30 |
650 |
Internal |
3 |
4 |
CPC4 |
|
|
0.5 |
2 |
18 |
650 |
Internal |
5 |
6 |
CPC4 |
|
|
0.5 |
2 |
30 |
650 |
Internal |
3 |
4 |
TO92 |
|
|
0.5 |
2 |
18 |
650 |
Internal |
5 |
6 |
TO92 |
|
|
0.5 |
2 |
30 |
650 |
Internal |
3 |
4 |
SOP8 |
|
|
0.5 |
2 |
18 |
650 |
Internal |
5 |
6 |
SOP8 |
|
|
0.5 |
2 |
12 |
650 |
Internal |
5 |
6 |
SOP8 |
|
|
0.5 |
2 |
14 |
650 |
Internal |
5 |
6 |
SOP8 |
|
|
0.5 |
2 |
9 |
650 |
External |
7 |
10 |
SOP8 |
|
|
0.5 |
2 |
9 |
650 |
External |
12 |
15 |
DIP8 |
|
|
0.5 |
2 |
4.5 |
650 |
External |
18 |
21 |
DIP8 |
|
|
0.5 |
2 |
24 |
650 |
External |
3 |
5 |
SOP8 |
|
|
0.5 |
2 |
14 |
650 |
External |
5 |
7 |
SOP8 |
|
|
0.5 |
2 |
9 |
650 |
External |
7 |
10 |
SOP8 |
|
|
0.5 |
3 |
9 |
600 |
External |
12 |
15 |
DIP8 |
|
|
0.5 |
3 |
4.5 |
650 |
External |
18 |
21 |
DIP8 |
|
|
0.5 |
3 |
2 |
650 |
External |
24 |
30 |
DIP8 |
|
|
0.5 |
3 |
- |
- |
External |
50 |
75 |
SOT23-5 |
|
|
0.5 |
3 |
- |
- |
External |
50 |
75 |
SOT23-5 |
|
