The CXLE8117 regulator is fixed frequency PWM Boost (step-up) LED constant current driver, capable of driving Series 1W LED units with excellent line and load regulation. The regulator is simple to use because it includes internal frequency compensation and a fixed-frequency oscillator so that it requires a minimum number of external components to work. The CXLE8117 could directly drive 6 Series 1W LED units at VIN>12V . The PWM control circuit is able to adjust the duty ratio linearly from 0 to 95%. An enable function, an over current protection function is built inside. An internal compensation block is built in to minimize external component count
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[ CXLE8117 ]"
目录
产品概述 返回TOP
The CXLE8117 regulator is fixed frequency PWM Boost (step-up) LED constant current driver, capable of driving Series 1W LED units with excellent line and load regulation. The regulator is simple to use because it includes internal frequency compensation and a fixed-frequency oscillator so that it requires a minimum number of external components to work. The CXLE8117 could directly drive 6 Series 1W LED units at VIN>12V . The PWM control circuit is able to adjust the duty ratio linearly from 0 to 95%. An enable function, an over current protection function is built inside. An internal compensation block is built in to minimize external component count
产品特点 返回TOP
n Wide 3.6V to 24V Input Voltage Range
n 0.22V FB adjustable LED drive current
n Directly drive 6 Series 1W LED at VIN>=12V
n Fixed 400KHz Switching Frequency
n Max. 2A Switching Current Capability
n Up to 92% efficiency
n Excellent line and load regulation
n EN PIN TTL shutdown capability & With PWM Dimming Function
n Internal Optimize Power MOSFET
n Built in Soft-Start Function
n Built in Frequency Compensation
n Built in Thermal Shutdown Function
n Built in Current Limit Function
n Available in SOP8 package
应用范围 返回TOP
n LED Lighting
n Boost constant current driver
n Monitor LED Backlighting
n 7’ to 15’ LCD Panels
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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PWM |
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PWM |
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28V |
0.2V |
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1.2MHz |
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20KHz-1MHz |
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PWM |
2.7V-6.5V |
22V |
0.2V |
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5uA |
1MHz |
PWM |
SOT-26 |
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PWM |
3.0V-6.0V |
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1.2MHz |
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PWM |
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PWM |
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400uA |
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PWM |
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PWM |
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型号 |
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