The CXLE8204 is a high efficiency step-up converter with an internally integrated 40V power MOSEFT. It runs with an optimal 0.8MHz frequency thatenablesuse of small external components while still providing best efficiencies. It has an internal current limit as high as 1A, and it can drive up to 10 LEDs at 50mA output current. The incorporated 25-100KHz true PWM-Dimming feature by EN pincan be used to digitally program the LED current. For maximum protection, the CXLE8204 has aninternal OVP protectionat 38V to prevent the chip from damages when the LED string is not connected to the output
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[ CXLE8204 ]"
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
CXLE8204是一款40V异步升压，可驱动单串10颗LED，是智能手机和7-10寸平板电脑的TFT屏背光的最佳选择。CXLE8204采用了内部补偿构架，输出OVP则采用了内部控制，省去了一个引脚。CXLE8204在3.6V输入时驱动6颗LED，效率可达91%，领先所有竞争对手。并可驱动多达40颗串并联的LED灯。同时，其EN脚可直接实现PWM调光，无需外围电路。CXLE8204采用SOT23-6封装，其引脚和外围应用完全与目前通用料兼容。
The CXLE8204 is a high efficiency step-up converter with an internally integrated 40V power MOSEFT. It runs with an optimal 0.8MHz frequency thatenablesuse of small external components while still providing best efficiencies. It has an internal current limit as high as 1A, and it can drive up to 10 LEDs at 50mA output current. The incorporated 25-100KHz true PWM-Dimming feature by EN pincan be used to digitally program the LED current. For maximum protection, the CXLE8204 has aninternal OVP protectionat 38V to prevent the chip from damages when the LED string is not connected to the output. EJCXLE8204s available in a space-saving SOT23-6 package.
二.产品特点
最高输出电压40V
驱动单串10颗LED背光
可驱动串并联40颗LED灯背光
3.6V驱动6串LED效率高达91%
800KHz开关频率
EN引脚直接PWM调光
内置40V OVP
200mV反馈电压，精度3%
三.应用范围
智能手机
平板电脑
LED手电筒
OLED偏压和驱动
TFT屏幕偏压
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
| LED驱动 | |||||||||||
| Device | Device | Architecture | VIN | VOUT | Isw | Vfb | Switching | IQ | Package | ||
| Description | (min) | (max) | (min) | (max) | (max) | (V) | Frequency | (uA) | |||
| (V) | (V) | (V) | (V) | (A) | (Hz) | ||||||
| CXLE8201 | 高效单串10颗LED驱动 | 外部补偿 | 2.7 | 6 | Vin | 40 | 0.7 | 0.2 | 600K | 600 | SOT23-6 |
| CXLE8202 | 高效单串10颗LED驱动 | 外部补偿 | 2.7 | 6 | Vin | 40 | 0.7 | 0.2 | 600K | 600 | DFN2x2-6 |
| CXLE8203 | 24V升压100颗LED驱动 | 内部补偿 | 2.7 | 6 | Vin | 24 | 3 | 0.2 | 1M | 250 | SOT23-6 |
| CXLE8204 | 高效单串10颗LED驱动 | 内部补偿 | 2.7 | 6 | Vin | 40 | 1 | 0.2 | 800K | 250 | SOT23-6 |
| CXLE8205 | 36V降压LED恒流驱动器 | 内部补偿 | 4.2 | 38 | 1 | 0.9Vin | 1.5 | 0.15 | 750K | 600 | SOT23-6 |
