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首页 > Products > Led Driver > Boost and Buck Linear CC LED driver > Low Voltage Linear Buck LED Drive >4.5V to 32V Input, Constant Current Boost HB LED Driver The CXLE8246 is a current mode fixed-frequency PWM controller for high brightness(HB) LED driving applications. The device operates from an in
4.5V to 32V Input, Constant Current Boost HB LED Driver The CXLE8246 is a current mode fixed-frequency PWM controller for high brightness(HB) LED driving applications. The device operates from an in

The CXLE8246 is a current mode fixed-frequency PWM controller for high brightness(HB) LED driving applications. The device operates from an input supply between 4.5V and 32V and provides to drive an external N-channel MOSFET. The CXLE8246 contains all the necessary building blocks including a bandgap reference, a 330KHz oscillator, current-mode control circuitry, chip shutdown block, softstart block and gate driver, etc. LED current is set by an external resistor. Current mode control provides improved transient response and simplified loop compensation. On-chip soft start reduces the inrush current on power up

4.5V to 32V Input, Constant Current Boost HB LED Driver  The CXLE8246 is a current mode fixed-frequency PWM controller for high brightness(HB) LED driving applications. The device operates from an in
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  1. 1.产品概述    2.产品特点     rFB嘉泰姆

  2. 3.应用范围    4.技术规格书下载(PDF文档)rFB嘉泰姆

  3. 5.产品封装    6.电路原理图  rFB嘉泰姆

     7.相关产品rFB嘉泰姆

产品概述                                             返回TOP

  The CXLE8246 is a current mode fixed-frequency PWM controller for high brightness(HB) LED driving applications. The device operates from an input supply between 4.5V and 32V and provides to drive an external N-channel MOSFET. The CXLE8246 contains all the necessary building blocks including a bandgap reference, a 330KHz oscillator, current-mode control circuitry, chip shutdown block, softstart block and gate driver, etc. LED current is set by an external resistor. Current mode control provides improved transient response and simplified loop compensation. On-chip soft start reduces the inrush current on power up. The other features include chip shutdown, over voltage protection, LED dimming, built-in 5V regulator and slope compensation, etc. The CXLE8246 is available in 10-pin SSOP packagerFB嘉泰姆

产品特点                                   返回TOP

 Constant Current HB LED Driver rFB嘉泰姆

 LED Current Set by an External Resistor rFB嘉泰姆

 ±10% LED Current Accuracy rFB嘉泰姆

 Peak Current Mode PWM Controller rFB嘉泰姆

 4.5V to 32V Input Range rFB嘉泰姆

 330kHz Switching Frequency rFB嘉泰姆

 PWM Dimming rFB嘉泰姆

 Cycle-by-Cycle Peak Inductor Current Limit rFB嘉泰姆

 On-Chip Slope Compensation rFB嘉泰姆

 Internal Soft-start rFB嘉泰姆

 Built-in 5V regulator rFB嘉泰姆

 Low Shutdown Current rFB嘉泰姆

 Operating Temperature Range: -40℃ to 85℃ rFB嘉泰姆

 Available in 10-pin SSOP package. rFB嘉泰姆

 Lead-free, Rohs-Compliant and Halogen-freerFB嘉泰姆

应用范围                                             返回TOP

  High Brightness LED Lighting rFB嘉泰姆

  FlashlightrFB嘉泰姆

  Building and Street LightingrFB嘉泰姆

  Constant Current Power SupplyrFB嘉泰姆

  Portable DevicesrFB嘉泰姆

技术规格书(产品PDF)                         返回TOP 

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!rFB嘉泰姆

 QQ截图20160419174301.jpgrFB嘉泰姆

产品封装图                                               返回TOP

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电路原理图                                               返回TOP

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相关芯片选择指南                                      返回TOP

型号rFB嘉泰姆

工作模式rFB嘉泰姆

最大LED电流rFB嘉泰姆

其它功能rFB嘉泰姆

工作模式rFB嘉泰姆

工作电压范围rFB嘉泰姆

封装rFB嘉泰姆

CXLE8246rFB嘉泰姆

开关模式rFB嘉泰姆

-rFB嘉泰姆

峰值电流模式升压型高亮度LED驱动rFB嘉泰姆

升压rFB嘉泰姆

4.5V 到 32VrFB嘉泰姆

SSOP10rFB嘉泰姆

CXLE8245rFB嘉泰姆

开关模式rFB嘉泰姆

-rFB嘉泰姆

高端电流检测rFB嘉泰姆

降压,升降压rFB嘉泰姆

4.5V 到 32VrFB嘉泰姆

SSOP10rFB嘉泰姆

CXLE8250rFB嘉泰姆

线性模式rFB嘉泰姆

800mArFB嘉泰姆

内部集成有功率管,温度调制,LED电流可通过外部电阻设置rFB嘉泰姆

SOT89rFB嘉泰姆

CXLE8247rFB嘉泰姆

线性模式rFB嘉泰姆

1.5ArFB嘉泰姆

内部集成有功率管,温度调制,LED电流可通过外部电阻设置rFB嘉泰姆

强光,弱光,爆闪和关断,强光,弱光和关断强光,爆闪和关断rFB嘉泰姆

SOP8rFB嘉泰姆

CXLE8253rFB嘉泰姆

线性模式rFB嘉泰姆

1A,内置 32V,持续电流达1A 的功率MOS 晶体管,最大电流1.5A(典型值),LED 电流检测电压150毫伏,降低了功耗rFB嘉泰姆

芯片内部集成有 130Hz PWM 信号产生电路rFB嘉泰姆

模拟和 PWM 信号实现LED 亮度控制,可实现剧院调光效果rFB嘉泰姆

4V 到 32VrFB嘉泰姆

SOP8或DFN8rFB嘉泰姆

CXLE8254rFB嘉泰姆

线性模式rFB嘉泰姆

1.5A,LED 电流精度:±5%rFB嘉泰姆

内置 32V,持续电流达1A 的功率MOS 晶体管,最大电流1.5A(典型值),高端电流检测,滞环控制:响应速度快,无需补偿rFB嘉泰姆

采用PWM调光或模拟调光方式,PWM调光频率最高20kHz,恒流输出,±5%电流精度,高压芯片使能输入端,可作为调光端口rFB嘉泰姆

4V 到 32V,高达25W输出功率rFB嘉泰姆

SOP8或DFN8rFB嘉泰姆

CXLE8244rFB嘉泰姆

开关模式rFB嘉泰姆

最高输出功率25WrFB嘉泰姆

     

SOT23-6rFB嘉泰姆

CXLE8249rFB嘉泰姆

线性模式rFB嘉泰姆

1.5ArFB嘉泰姆

内部集成有功率管,过温保护,LED电流可通过外部电阻设置rFB嘉泰姆

SOP8rFB嘉泰姆

CXLE8248rFB嘉泰姆

线性模式rFB嘉泰姆

1.5ArFB嘉泰姆

内部集成有功率管,过温保护,LED电流可通过外部电阻设置rFB嘉泰姆

强光,弱光,爆闪和关断,强光,弱光和关断强光,爆闪和关断rFB嘉泰姆

SOP8rFB嘉泰姆

CXLE8252rFB嘉泰姆

线性模式rFB嘉泰姆

800mArFB嘉泰姆

内部集成有功率管,过温保护,LED电流可通过外部电阻设置rFB嘉泰姆

SOT89-5rFB嘉泰姆

CXLE8251rFB嘉泰姆

线性模式rFB嘉泰姆

1000mArFB嘉泰姆

内部集成有功率管,过温保护,LED电流可通过外部电阻设置rFB嘉泰姆

TO252-5rFB嘉泰姆