Cxle8334 is a high precision, high efficiency and high power factor step-down LED constant current drive control switch. It works in the critical conduction mode. In the range of full voltage 85vac ~ 265vac input voltage, the constant current accuracy can reach ?5%, and the PF value is greater than 0.9. Cxle8334 is mainly suitable for the highlighted buck LED driver, which can achieve constant output current. With fewer peripheral devices and low cost, the scheme has the characteristics of output on-off, short-circuit protection and over temperature protection. It can pass EFT, lightning surge and other reliability tests
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[ CXLE8334 ]"
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（PDF文档）
一.产品概述
CXLE8334是一款高精度、高效率、高功率因数的降压型LED恒流驱动控制开关.工作在临界导通模式，在全电压85Vac~265Vac输入电压范围内，恒流精度可达到±5%,PF值大于0.9.CXLE8334 主要适用于高亮的BUCK LED驱动器，可实现恒定的输出电流。外围器件少，方案成本低，具有输出开、短路保护、过温保护特性。可通过EFT、雷击浪涌等可靠性测试。
二.产品特点
宽输入电压范围85Vac~265Vac
恒流精度±5%
功率因数 PF>0.9
效率可达到90%以上
支持无输入电解电容方案
拓扑结构支持：非隔离的低成本 BUCK 驱动方案
电感电流临界导通模式
内置自恢复的输出开、短路保护功能、过温保护功能
内封功率MOS管
封装形式：SOP8
三.应用范围
T5、T8日光灯
吸顶灯、球泡灯、平板灯等
DC/DC或AC/DC的LED驱动器
四.技术规格书（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
六.电路原理图
七.相关芯片选择指南 更多同类产品......
| 》PF>0.5/非隔离 | |||||||
| IC Name | Topology | POUT.MAX | IOUT.MAX | IOUTPrecision | HV_MOSFET | BVDSS | Package |
| CXLE8321 | Buck | 24W | 300mA | <±3% | Inside | 550V | SOP8 DIP8 |
| CXLE8322 | Buck | 9W | 120mA | <±3% | Inside | 500V | SOP8 |
| CXLE8323 | Buck | 18W | 150mA | <±3% | Inside | 600V | SOP8 |
| CXLE8324C | Buck | 5W | 120mA | <±3% | Inside | 500V | SOT89-5 |
| CXLE8324PC | Buck | 5W | 120mA | <±3% | Inside | 500V | SOP8 |
| CXLE8326 | Buck | 9W | 120mA | <±3% | Inside | 730V | SOP8 |
| CXLE8327 | Buck | 36W | 450mA | <±3% | External | - | SOP8 |
| CXLE8328P | Buck | 9W | 120mA | <±3% | Inside | 500V | SOP8-7 |
| CXLE8328PC | Buck | 15W | 220mA | <±3% | Inside | 500V | SOP8-7 |
| CXLE8330 | Buck | 24W | 240mA | <±3% | Inside | 500V | SOP8-7 |
| CXLE8331 | PSR&Buck | - | - | <±5% | External | - | SOT23-6 |
| 》PF>0.9/非隔离 | |||||||
| IC Name | Topology | POUT.MAX | IOUT.MAX | IOUTPrecision | HV_MOSFET | BVDSS | Package |
| CXLE8332 | Buck | - | - | <±5% | External | - | SOT23-6 |
| CXLE8333 | Buck | 18W | 240mA | <±5% | Inside | 550V | SOP8 |
| CXLE8334 | Buck | 24W | 300mA | <±5% | Inside | 600V | SOP8 |
| 》大功率无频闪/非隔离 | |||||||
| IC Name | Topology | POUT.MAX | IOUT.MAX | IOUTPrecision | HV_MOSFET | BVDSS | Package |
| CXLE8335 | Boost+Buck | - | - | <±3% | External | - | SOP16 |
