CXLE8119稳压器是固定频率的PWM升压（升压）LED恒流驱动器，能够驱动系列1W/3W/5W LED单元，具有出色的线路和负载调节能力。该调节器使用简单，因为它包括内部频率补偿和固定频率振荡器，因此它需要最少数量的外部组件才能工作。CXLE8119可以直接驱动11系列1W LED单元（在车辆识别号>12V时）。该PWM控制电路能够将占空比从0%线性调整到95%。一个使能功能，一个过电流保护功能内置。内置内部补偿块以最小化外部组件计数
宽3.6V至32V输入电压范围
n 0.22V FB可调LED驱动电流
n直接驱动11系列1W LED（车辆识别号>=12V）
n固定180KHz开关频率
n最大4A开关电流能力
n效率高达94%
n优良的线路和负载调节
n EN PIN TTL关断能力&具有PWM调光功能
n内部优化功率MOSFET
n内置软启动功能
n内置频率补偿
n内置热关机功能
n内置电流限制函数
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[ CXLE8119 ]"
目录
产品概述 返回TOP
The CXLE8119 regulator is fixed frequency PWM Boost (step-up) LED constant current driver, capable of driving Series 1W/3W/5W 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 CXLE8119 could directly drive 11 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 32V Input Voltage Range
n 0.22V FB adjustable LED drive current
n Directly drive 11 Series 1W LED at VIN>=12V
n Fixed 180KHz Switching Frequency
n Max. 4A Switching Current Capability
n Up to 94% 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 TO252-5L 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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工作电 压范围 |
过压保 护电压 |
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开关电 流限制 |
静态电流 |
工作频率 |
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PWM |
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0.1V |
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0.1uA |
1.3MHz |
PWM |
SOT-25 |
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PWM |
2.2V-6.0V |
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0.25V |
400mA |
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1.4MHz |
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100Hz-1KHz |
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型号 |
工作模式 |
工作电 压范围 |
过压保 护电压 |
反馈电压 |
开关电 流限制 |
静态电流 |
工作频率 |
调光形式 |
调光频 率范围 |
封装 |
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PWM |
2.2V-6.0V |
17V |
0.25V |
700mA |
82% |
3mA |
1.4MHz |
PWM |
100Hz-1KHz |
SOT-26 |
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PWM |
2.5V-6.0V |
23V |
0.25V |
1.0A |
88% |
0.4mA |
1.0MHz |
PWM |
100Hz-10KHz |
SOT-26 |
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PWM |
2.5V-6.0V |
30V |
0.104V |
400mA |
87% |
0.2mA |
1.2MHz |
PWM |
小于1KHz |
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PWM |
2.7V-6.0V |
38V |
0.2V |
1A |
91% |
5uA |
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PWM |
2.7V-6.0V |
37V |
0.3V |
900mA |
90% |
0.28mA |
0.9MHz |
PWM |
100Hz-200KHz |
SOT-26 |
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PWM |
2.5V-6.0V |
28V |
0.1V/0.25V /0.3V |
1.5A |
90% |
0.1uA |
1.2MHz |
PWM |
20KHz-1MHz |
SOT-26 |
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PWM |
3.0V-25V |
28V |
0.2V |
2A |
90% |
1uA |
1.2MHz |
PWM |
20KHz-1MHz |
SOT-26 |
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PWM |
2.7V-6.5V |
22V |
0.2V |
2.8A |
95% |
5uA |
1MHz |
PWM |
SOT-26 |
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PWM |
3.0V-6.0V |
24V |
0.2V |
2.5A |
88% |
1uA |
1.2MHz |
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10KHz-100KHz |
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调光形式 |
调光频 率范围 |
封装 |
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PWM |
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26V |
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100uA |
800KHz |
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PWM |
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27V |
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800KHz |
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DFN3*3-8 |
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PWM |
10V-35V |
200V |
0.2V |
扩流 |
400uA |
200KHz |
PWM |
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PWM |
3.6V-26V |
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0.22V |
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92% |
400KHz |
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PWM |
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PWM |
5.0V-45V |
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PWM |
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型号 |
工作模式 |
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反馈电压 |
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工作频率 |
调光形式 |
调光频 率范围 |
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