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1.产品概述       2.产品特点     kVH嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）kVH嘉泰姆

5.产品封装       6.电路原理图  kVH嘉泰姆

7.相关产品kVH嘉泰姆

   产品概述 返回TOPkVH嘉泰姆

The CXLE8158 is a high efficiency charge pump white LED driver; the device drives up four white LEDs with regulated constant current for uniform intensity. The supply voltage ranges from 2.7V to 5.5V and it is optimized for a Li-ion battery application. The CXLE8158 operates in 1x, 1.5x, and 2x charge pump modes and automatically switches the charge pump modes depend on the input voltage to maintain the required power for high power efficiency. The CXLE8158 provides up to 30mA per LED for a total of 120mA and allows several methods, such as a PWM signal on the CTRL0 pin for LED dimming. Three control logic pins allow to disable or enable a combination of LEDs. The supply current is only 2mA in 2x mode, and the EN pin allows the device to enter shutdown mode with 2mA quiescent current. The CXLE8158 switches at 1MHz frequency and only requires four 1mF ceramic capacitors and one resistor, and ensures low input current ripple and EMI. The CXLE8158 is available in a 16-pin QFN package.

   产品特点 返回TOPkVH嘉泰姆

· ±1.5% LED Current Matching kVH嘉泰姆

· High Efficiency Up to 90% Over Li-ion Battery Discharge kVH嘉泰姆

· Output Current Up to 30mA per LED kVH嘉泰姆

· 2.7V to 5.5V Operating Voltage kVH嘉泰姆

· Allow to Turn On or Off a Combination of LEDs kVH嘉泰姆

· 1x/1.5x/2x Charge Pump Modes kVH嘉泰姆

· Low Shutdown Current: 2mA Maximum kVH嘉泰姆

· Low Input Ripple and EMI kVH嘉泰姆

· Internal Soft-Start Limits Inrush Current kVH嘉泰姆

· Short Circuit Current-Limit kVH嘉泰姆

· Thermal Shutdown Protection kVH嘉泰姆

· Output Over-Voltage Protection kVH嘉泰姆

· 3mmx3mm 16-Pin QFN (QFN3X3-16) Package kVH嘉泰姆

· Lead Free and Green Devices Available (RoHS Compliant)kVH嘉泰姆

   应用范围 返回TOPkVH嘉泰姆

· Cellular Phone White LED Back Light kVH嘉泰姆

· Portable Device · PDA and Handheld Computer kVH嘉泰姆

· DSCkVH嘉泰姆

   技术规格书（产品PDF) 返回TOP kVH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！kVH嘉泰姆

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产品封装图 返回TOPkVH嘉泰姆

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电路原理图 返回TOPkVH嘉泰姆

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◀ Previous:1X/1.5X/2X Charge Pump White LED Driver for Main and Sub-Displays CXLE8157 is a high efficiency charge pump white LED driver; the device drives up to four white LEDs in the main display and up to two

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Next▶:1MHz, High-Efficiency, Step-Up Converter for 2 to 6 White LEDs CXLE8159 is a current-mode and fixed frequency boost converter with an integrated N-FET to drive up to 6 white LEDs in series.The serie