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首页 > Products > Led Driver > LED Driver Chip > Stepless Dimming Chip >Cxle8859 is a 2.5V~30V wide input range boost type white LED constant current driver chip which can achieve 7W(7x1w) driving capacity under the input voltage of AC12V/DC12V
Cxle8859 is a 2.5V~30V wide input range boost type white LED constant current driver chip which can achieve 7W(7x1w) driving capacity under the input voltage of AC12V/DC12V

Cxle8859 uses fixed working frequency and current mode to adjust LED current. The system has fast transient response, stable loop and simple design.
Cxle8859 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. 460khz fixed working frequency minimizes external inductance, input and output capacitance.
The cxle8859 supports PWM dimming and analog dimming through a single control pin. In order to ensure the safe and reliable operation of the system, the protection mechanisms inside the chip include over voltage protection (OVP), over current protection (OCP) and over temperature protection (OTP)

Cxle8859 is a 2.5V~30V wide input range boost type white LED constant current driver chip which can achieve 7W(7x1w) driving capacity under the input voltage of AC12V/DC12V
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   产品概述 返回TOPGJ9嘉泰姆


  CXLE8859是一款2.5V~30V宽输入范围,升压型白光LED恒流驱动芯片,可在AC12V/DC12V的输入电压下达到7W(7X1W) 的驱动能力。 CXLE8859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。 GJ9嘉泰姆

CXLE8859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。460kHz 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。 

CXLE8859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TOPGJ9嘉泰姆


● 输入电压范围:2.5V~30V GJ9嘉泰姆

● 高达95%的效率 GJ9嘉泰姆

● 过流保护 GJ9嘉泰姆

● 内置0.2ohm功率MOS管 GJ9嘉泰姆

● LED过温保护 GJ9嘉泰姆

● 采用低等效串联电阻(ESR)陶瓷电容即可保证 系统稳定 GJ9嘉泰姆

● 过温保护和过流保护 GJ9嘉泰姆

● 过压保护外部可调节 GJ9嘉泰姆

● 固定460kHz工作频率 GJ9嘉泰姆

● 抖频技术降低电磁干扰 GJ9嘉泰姆

● 低反馈电压:205mV GJ9嘉泰姆

● 可调节的软启动 GJ9嘉泰姆

● 支持模拟调光和高达50kHz的PWM 调光 GJ9嘉泰姆

● SOP8封装GJ9嘉泰姆

   应用范围 返回TOPGJ9嘉泰姆


● 车用日行灯和船舶照明 GJ9嘉泰姆

● 高功率LED照明驱动 GJ9嘉泰姆

● LED手电筒 GJ9嘉泰姆

● 低压LED照明 (景观照明、台灯及室内照明、MR16 射灯) GJ9嘉泰姆

● LED背光照明GJ9嘉泰姆

   技术规格书(产品PDF) 返回TOP GJ9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!GJ9嘉泰姆

 QQ截图20160419174301.jpgGJ9嘉泰姆

产品封装图 返回TOPGJ9嘉泰姆


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电路原理图 返回TOPGJ9嘉泰姆


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