Cxle83112j integrated active power factor correction circuit can achieve high power factor and low total harmonic distortion. Due to the critical continuous mode of inductor current, the power MOS transistor is in the zero current on state, the switching loss can be reduced, and the utilization rate of inductor is also high. Cxle83112j is internally integrated with 500V power MOSFET, which only needs a few peripheral devices to achieve excellent constant current characteristics. Cxle83112j adopts a patented floating ground architecture to conduct full cycle sampling of inductance current, which can achieve high-precision output constant current control, and achieve excellent line voltage adjustment rate and load adjustment rate. Cxle83112j adopts patented high-voltage JFET startup and power supply circuit, which enables the system to start quickly, reduces external power supply components and realizes smaller volume. Cxle83112j has multiple protection functions to enhance system reliability, including LED open circuit protection, led short circuit protection, chip power supply undervoltage protection, current sampling resistance open circuit protection and cycle by cycle current limiting
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[ CXLE83112J ]"
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
CXLE83112J是一款带有源功率因数校正的高精度降压型LED恒流控制器，适用于85Vac-265Vac全范围输入电压的非隔离降压式 LED 恒流电源。CXLE83112J 集成有源功率因数校正电路，可以实现很高的功率因数和很低的总谐波失真。由于工作在电感电流临界连续模式，功率 MOS 管处于零电流开通状态，开关 损耗得以减小，同时电感的利用率也较高。 CXLE83112J 内部集成 500V 功率 MOSFET,只需要很少的外围器件，即可实现优异的恒流特性. CXLE83112J 采用专利的浮地构架，对电感电流进行全周 期采样，可实现高精度输出恒流控制，并达到优异 的线电压调整率和负载调整率。 CXLE83112J 采用专利的高压 JFET 启动和供电电路，使得系统能快速启动，并且减少了外部供电元器件， 实现更小的体积。 CXLE83112J 具有多重保护功能以加强系统可靠性，包括LED开路保护、LED 短路保护、芯片供电欠压保护、电流采样电阻开路保护和逐周期限流等。另外， CXLE83112J 具有过热调节功能，在驱动电源过热时减小 输出电流，以提高系统的可靠性。
二.产品特点
高压JFET快速启动与供电
内置500V功率MOSFET
有源功率因数校正，高PF值，低THD
高达90%的系统效率
±3%LED输出电流精度
优异的线电压调整率和负载调整率
电感电流临界连续模式
超低(300uA)工作电流
LED短路/开路保护
电流采样电阻开路保护
逐周期电流限流
芯片供电欠压保护
自动重启功能
过热调节功能
三.应用范围
GU10/E27 LED球泡灯、射灯
LED PAR30、PAR38灯
LED日光灯
其它LED照明
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 更多的同类产品......
| AC/DC非隔离高PF | ||||||||
| Part | PF | Internal MOS | Internal MOS | External | Open circuit | Iout@Vo=72V（mA) | Iout@Vo=36V（mA) | Package |
| number | Rdson（Ω） | BVDSS（V） | MOS | protection | (Vin=176V-265V) | (Vin=176V-265V) | ||
| CXLE83110 | 0.9 | 8 | 500 | - | External | <150 | <220 | SOP8 |
| CXLE83111J | 0.9 | 5.5 | 550 | - | External | <180 | <250 | SOP8 |
| CXLE83112J | 0.9 | 3 | 500 | - | External | <230 | <350 | SOP8 |
| CXLE83113J | 0.9 | 2 | 600 | - | External | <250 | <360 | SOP8 |
| CXLE83114AJ | 0.9 | 5.5 | 550 | - | External | <200 | <280 | SOP8 |
| CXLE83115AJ | 0.9 | 3 | 500 | - | External | <240 | <360 | SOP8 |
| CXLE83116AJ | 0.9 | 4.5 | 650 | - | External | <200 | <280 | SOP8 |
| CXLE83117AJ | 0.9 | 1.8 | 600 | - | External | <300 | <420 | SOP8 |
| CXLE83117DJ | 0.9 | 2 | 650 | - | External | <320 | <440 | DIP8 |
| CXLE83118A | 0.9 | - | - | Y | External | - | - | SOT23-6 |
| CXLE83118AJ | 0.9 | - | - | Y | External | - | - | SOT23-6 |
