目录
产品概述 返回TOPfAd嘉泰姆
The CXLE8156 is a high efficiency charge pump white
LED driver; the device drives up to 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 CXLE8156 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 CXLE8156 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 CXLE8156 switches at
1MHz frequency and only requires four 1mF ceramic capacitors
and one resistor, and ensures low input current
ripple and EMI.
The CXLE8156 is available in a 16-pin QFN package
产品特点 返回TOPfAd嘉泰姆
· ±1.5% LED Current Matching fAd嘉泰姆
· High Efficiency Up to 90% Over Li-ion Battery
Discharge fAd嘉泰姆
· Output Current Up to 30mA Per LED fAd嘉泰姆
· 2.7V to 5.5V Operating Voltage fAd嘉泰姆
· Allow to Turn On or Off a Combination of LEDs fAd嘉泰姆
· 1x/1.5x/2x Charge Pump Modes fAd嘉泰姆
· Low Shutdown Current: 2mA Maximum fAd嘉泰姆
· Low Input Ripple and EMI fAd嘉泰姆
· Internal Soft-Start Limits Inrush Current fAd嘉泰姆
· Short Circuit Current Limit fAd嘉泰姆
· Thermal Shutdown Protection fAd嘉泰姆
· Output Over-Voltage Protection fAd嘉泰姆
· 16-Pin QFN Package fAd嘉泰姆
· Lead Free and Green Devices Available
(RoHS Compliant)fAd嘉泰姆
应用范围 返回TOPfAd嘉泰姆
· Cellular Phone White LED Back Light fAd嘉泰姆
· Portable Device fAd嘉泰姆
· PDA, Handheld Computer fAd嘉泰姆
· DSCfAd嘉泰姆
技术规格书（产品PDF) 返回TOP fAd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</span>！</span>
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产品封装图 返回TOPfAd嘉泰姆
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电路原理图 返回TOPfAd嘉泰姆
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Lighting and Display Product > White LED DriverfAd嘉泰姆 |
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