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首页 > Products > Led Driver > Streetlight Spotlight Loghting Desk-lamp Lawn-lamp >  Boost and Buck LED Spotlight Driver >Cxle8872 is a 2.5V~40V wide input voltage range white LED constant current driver chip set as Buck boost and boost voltage topology It can achieve 20W driving capacity
Cxle8872 is a 2.5V~40V wide input voltage range white LED constant current driver chip set as Buck boost and boost voltage topology It can achieve 20W driving capacity

Cxle8872 adopts fixed working frequency and current mode to adjust LED current. The system has fast transient response, stable loop and simple design. Cxle8872 adopts high-level current detection technology, which can set the average working current of led through external resistance. 205mv low reference voltage effectively reduces power loss and improves efficiency. 450kHZ fixed working frequency reduces external inductance, input and output capacitance to the maximum extent.
The cxle8872 supports PWM dimming and analog dimming through a single control pin. The chip includes over-voltage protection (OVP), over-current protection (OCP), over temperature protection (OTP) and other protection mechanisms to ensure the safe and reliable operation of the system

Cxle8872 is a 2.5V~40V wide input voltage range white LED constant current driver chip set as Buck boost and boost voltage topology It can achieve 20W driving capacity
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1.产品概述       2.产品特点     503嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)503嘉泰姆

5.产品封装       6.电路原理图  503嘉泰姆

7.相关产品503嘉泰姆

   产品概述 返回TOP503嘉泰姆


     CXLE8872是一款2.5V~40V宽输入 电压范围,白光 LED恒流驱动芯片, CXLE8872 可设置为降压,升压 和升降压型拓扑结构。可在AC12V/DC12V的输入 电压下达到20W的驱动能力。 

CXLE8872 采用固定工作频率,电流模式来调节 LED 电流,系统瞬态响应快,环路稳定,设计简单。 CXLE8872 采用高位电流检测技术,可以通过外部电 阻设置 LED 的平均工作电流。205mV 的低基准电 压有效地降低了功率损耗,提高了效率。450kHz 固定工作频率最大限度的减少了外部电感,输入与 输出电容。 

CXLE8872 通过单个控制引脚支持 PWM 调光 和模拟 调光。 芯片内部包括过压保护(OVP)、过流保护(OCP) 和过温保护(OTP)等保护机制,以确保系统安全 可靠地工作。

   产品特点 返回TOP503嘉泰姆


● 输入电压范围:2.5V~40V 503嘉泰姆

● 高达 95%的效率 503嘉泰姆

● 逐周期过流保护 503嘉泰姆

● 外置MOS管驱动 503嘉泰姆

● 支持升压,升降压,降压的拓扑结构 503嘉泰姆

● LED 过温保护 503嘉泰姆

● 稳定的低等效串联电阻(ESR)陶瓷电容即可保 证系统稳定 503嘉泰姆

● 过温保护和过压保护 503嘉泰姆

● 过压保护外部可调节 503嘉泰姆

● 固定 450kHz 工作频率 503嘉泰姆

● 抖频技术降低电磁干扰 EMI 503嘉泰姆

● 低反馈电压:205mV 503嘉泰姆

● 可调节的软启动 503嘉泰姆

● 支持模拟调光和高达 10kHz 的 PWM 调光 503嘉泰姆

● ESOP8 封装503嘉泰姆

   应用范围 返回TOP503嘉泰姆


● 车用日行灯和船舶照明 503嘉泰姆

● 高功率 LED 照明驱动 503嘉泰姆

● LED 手电筒 503嘉泰姆

● 低压 LED 照明 (景观照明、台灯及室内照明、MR16 射灯) 503嘉泰姆

● LED 背光照明503嘉泰姆

   技术规格书(产品PDF) 返回TOP 503嘉泰姆


     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!503嘉泰姆

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产品封装图 返回TOP503嘉泰姆


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电路原理图 返回TOP503嘉泰姆


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升降压型LED射灯驱动IC
型号 工作电压范围 输出电流 输出电流精度 效率 工作频率 调光功能 封装 
CXLE8870 2.5V-30V 内置3A MOS 2% 90% 460KHz 模拟调光/PWM调光 ESOP-8
CXLE8871 2.5V-40V 内置3A MOS 2% 92% 460KHz 模拟调光/PWM调光 ESOP-8
CXLE8872 2.5V-40V 外置MOS扩流 2% 90% 460KHz 模拟调光/PWM调光 SOP-8
CXLE8873 2.2V-5.0V 0.7A 3% 95% 1.15MKHz PWM调光 MSOP-10
CXLE8874 2.4V-5.5V 0.5A         SOP-8