CXLE8141是一个恒流、高效率的LED驱动器。内部MOSFET可以驱动多达10个串联的白光led和带有38V OVP的10S4P/8S5P led。电感电流峰值限值大于1.5A。对于LED调光，可以对EN引脚施加脉冲宽度调制（PWM）信号。该器件工作在优化的600khz固定开关频率，以减少输出纹波，提高转换效率，并允许使用小型外部元件。
CXLE8141有SOT-23-6L套件。标准产品无铅无卤。
输入电压范围：3~5.5V
打开LED保护：38V
参考电压：200mV（±5%）
开关频率：600kHz（典型）
•效率：高达92%（10S4P）
主开关电流限制：1.5A（最小）
PWM调光频率：5KHz～200KHz
PWM调光占空比：最小4%
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[ CXLE8141 ]"
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
The CXLE8141 is a constant current, high efficiency LED driver. Internal MOSFET can drive up to 10 white LEDs in series and 10S4P / 8S5P LEDs with 38V OVP. Peak inductor current limit is larger than 1.5A. For LED dimming, a Pulse-Width-Modulation (PWM) signal can be applied to the EN pin. The device operates at optimized 600k Hz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allows use small external components.
The CXLE8141 is available in SOT-23-6L package. Standard product is Pb-free and Halogen-free.
二.产品特点
Input voltage range : 3~5.5V
Open LED Protection : 38V
Reference Voltage : 200mV (±5%)
Switching frequency : 600k Hz (Typ.)
Efficiency : Up to 92% (10S4P)
Main switch current limit : 1.5A (Min.)
PWM Dimming frequency : 5KHz to 200KHz
PWM Dimming Duty : Min. 4%
三.应用范围
Smart Phones
Tablets
Portable games
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......
| LV Product>LED Backlight | ||||||||
| Product | Character | Typical Effciency | Operating Voltage | Quiescent Iq | Output Voltage | Iq in Shutdown | SW Current Limit | Package |
| CXLE8135 | 1MHz Asynchronous PWM | 88% | 2.5~5.5V | 400μA | UP to 20V | 1μA | 1A | SOT23-5L |
| CXLE8136 | 1MHz OVP Asynchronous PWM | 88% | 2.5~6V | 550μA | Up to 25V | 1μA | 1A | SOT23-6L |
| CXLE8137 | 1MHz OVP Asynchronous PWM | 92% | 2.5～5.5V | 400μA | Up to 36V | 1μA | 1.2A | SOT23-6L |
| CXLE8138 | 1MHz OVP Asynchronous PWM | 92% | 2.5～5.5V | 400μA | Up to 36V | 1μA | 1.2A | SOT23-6L DFN22-8L |
| CXLE8139 | 1MHz OVP Asynchronous PWM | 92% | 2.5~5.5V | 400μA | Up to 36V | 1μA | 2A | TSOT23-6L DFN22-8 |
| 背光驱动 | ||||||||||
| Product | VIN | VIN | VOVP | VFB | IQ | ILIM | R(ON) | Freq. | Efficiency | Package |
| Min | Max | Typ | Typ | Typ | Min | Typ | Typ | Max | ||
| (V) | (V) | (V) | (mV) | (uA) | (A) | (Ω) | (MHz) | (%) | ||
| CXLE8140 | 3 | 5.5 | 38 | 0.2 | 300 | 1.5 | 0.3 | 0.6 | 91 | SOT-23-6L |
| CXLE8141 | 3 | 5.5 | 26 | 0.2 | 300 | 1.5 | 0.3 | 1 | 91 | SOT-23-6L |
| CXLE8142 | 2.7 | 5.5 | 38 | 0.2 | 400 | 0.8 | 0.6 | 0.6 | 91 | DFN2020-6L |
| CXLE8143 | 2.7 | 5.5 | 38 | 0.2 | 200 | 1.2 | 0.45 | 1 | 92 | TSOT-23-6L |
| CXLE8144 | 2.7 | 5.5 | 38 | 0.2 | 400 | 0.85 | 0.4 | 1.5 | 91 | DFN2*2-6L |
