CXLE8187是一款多功能恒流LED驱动器,具有高效的升压转换器结构。该器件集成了低功耗MOSFET,显著缩小了PCB的整体布局面积,减少了外部元件的总数。独特的技术和高1.6A电流限制允许CXLE8187驱动高达38V的输出(10个LED串联)。或者,CXLE8187可以提供260毫安的总电流,每串3个系列LED。它还可以最大限度地提高电流能力,同时实现高转换效率。优化后的600kHz开关频率降低了传导损耗,减小了外部元件尺寸。集成数字PWM调光接口,调节LED电流。脉宽调制频率在2kHz到60kHz之间。
CXLE8187内置了各种保护功能,包括逐周输入电流限制保护、开路LED(输出过电压)保护和热关机保护。关闭模式下的泄漏电流小于1μA。
[ CXLE8187 ]
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产品概述 返回TOP
产品特点 返回TOP
• Wide Output Range: Up to 10 Series LEDs
• Integrated 40V High Current Switch (1.6A Limit)
• 2.7V to 5.5V Input Voltage Range
• High Efficiency PWM Converter
• Low 300mV Feedback Voltage
• 500kΩ Pull-Low Resistor on CTRL Pin
• 2kHz to 60kHz PWM Dimming Frequency
• 38V Open LED Protection
• 600kHz Switching Frequency
• Integrated Soft-Start Function
• Less than 1μA Shutdown Current
• Simple, Small Solution Size
• -40℃ to +85℃ Temperature Range
• Available in Green TSOT-23-6 Package
应用范围 返回TOP
LED Backlighting
Mobile Phones
Handheld Devices
Digital Photo Frames
Automotive Navigation
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产品封装图 返回TOP
电路原理图 返回TOP
白光LED驱动器 |
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Product |
LED Connection |
CH |
Iq(μA) |
SHDN Iq(μA) |
Dimming |
Package |
CXLE8196 |
Common Anode |
1 |
60 |
1 |
PWM |
SOT-23-6 |
Common Anode |
4 |
100 |
1 |
PWM |
TQFN-3x3-16L |
|
Common Anode |
3 |
100 |
1 |
PWM |
TQFN-3x3-16L |
|
Common Anode |
4 |
240 |
1 |
PWM |
SOT-23-6 |
|
Common Anode |
4 |
100 |
1 |
One-Wire |
TQFN-3x3-16L |
|
Common Anode |
4 |
550 |
5 |
One-Wire |
TQFN-3x3-16L TDFN-2x2-8L MSOP-8 |
|
Common Cathode |
4 |
300 |
10 |
One-Wire |
TQFN-3x3-16L |
|
Common Anode |
6 |
210 |
1 |
One-Wire |
TQFN-3x3-16L |
|
Common Cathode |
6 |
300 |
10 |
One-Wire |
TQFN-4x4-16L |
|
Common Anode |
6 |
155 |
2.5@VIN =4.2V |
PWM |
TQFN-3x3-16L |
|
Common Anode |
8 |
155 |
2.5@VIN = 4.2V |
PWM |
TQFN-3x3-20L |
|
Common Anode |
8 |
155 |
2.5@VIN =4.2V |
One-Wire |
TQFN-3x3-20L |
|
Common Anode |
1 |
200 |
1 |
PWM |
TSOT-23-6 |
|
Common Anode |
1 |
200 |
1 |
One-Wire |
TSOT-23-6 |
|
Common Anode |
1 |
400 |
1 |
PWM |
TDFN-2x2-6L TSOT-23-6 |
|
Common Anode |
1 |
45 |
1 |
One-Wire |
TDFN-2x2-8L |
|
Common Anode |
1 |
200 |
1 |
PWM |
TSOT-23-6 |
|
Common Anode |
1 |
400 |
1 |
PWM |
TDFN-2x2-6L TSOT-23-6 |
|
Common Anode |
1 |
200 |
1 |
One-Wire |
TDFN-2x2-8L |
|
Common Anode |
1 |
200 |
1 |
PWM |
TDFN-2x2-8L |
|
Common Anode |
1 |
220 |
1 |
PWM |
TDFN-2x2-6L |
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