The CXLE8125B is a high efficiency step-up converter with an internally
integrated 40V power MOSEFT. It runs with an optimal 0.8MHz frequency
that enables use of small external components while still providing best
efficiencies. It has an internal current limit as high as 1A, and it can drive
up to 10 LEDs at 50mA output current. The incorporated 25-100KHz true
PWM-Dimming feature by EN pin can be used to digitally program the
LED current. For maximum protection, the CXLE8125B has an internal
OVP protection at 38V to prevent the chip from damages when the LED
string is not connected to the output
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[ CXLE8125B ]"
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目录 1.产品概述 2.产品特点 一,产品概述(General Description) The CXLE8125B is a high efficiency step-up converter with an internally integrated 40V power MOSEFT. It runs with an optimal 0.8MHz frequency that enables use of small external components while still providing best efficiencies. It has an internal current limit as high as 1A, and it can drive up to 10 LEDs at 50mA output current. The incorporated 25-100KHz true PWM-Dimming feature by EN pin can be used to digitally program the LED current. For maximum protection, the CXLE8125B has an internal OVP protection at 38V to prevent the chip from damages when the LED string is not connected to the output. CXLE8125B is available in a space-saving SOT23-6 package. 四,产品PDF文档 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！ 五,产品封装图 (Package)
六.电路原理图
七,功能概述 The CXLE8125B is a high efficiency boost LED driver with a small package size. The device is ideal for driving 2-25LEDs for backlight application in smartphone and 7-inch tablet PC. The device integrates a 38V/1A switch FET and operates in pulse width modulation (PWM) with a 0.8MHz fixed switching frequency. For operation details, please check the block diagram in the “Block Diagram” chapter. The duty cycle of the converter is set by the error amplifier output and the current signal applied to the PWM control comparator. The feedback loop regulates the FB pin to a low reference voltage (200mV typical), reducing the power dissipation in the current sense resistor. 八,相关产品 更多同类产品....... |
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白灯背光驱动IC>>>小屏白灯背光驱动IC |
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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 |
效率 |
静态电流 |
工作频率 |
调光形式 |
调光频 率范围 |
封装 |
|
PWM |
2.5V-10V |
29V |
0.1V |
320mA |
85% |
0.1uA |
1.3MHz |
PWM |
SOT-25 |
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|
PWM |
2.2V-6.0V |
17V |
0.25V |
400mA |
82% |
3mA |
1.4MHz |
PWM |
100Hz-1KHz |
SOT-26 |
|
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白灯背光驱动IC>>>大中屏白灯背光驱动IC |
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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 |
效率 |
静态电流 |
工作频率 |
调光形式 |
调光频 率范围 |
封装 |
|
PWM |
2.2V-6.0V |
17V |
0.25V |
700mA |
82% |
3mA |
1.4MHz |
PWM |
100Hz-1KHz |
SOT-26 |
|
|
PWM |
2.5V-6.0V |
23V |
0.25V |
1.0A |
88% |
0.4mA |
1.0MHz |
PWM |
100Hz-10KHz |
SOT-26 |
|
|
PWM |
2.5V-6.0V |
30V |
0.104V |
400mA |
87% |
0.2mA |
1.2MHz |
PWM |
小于1KHz |
SOT-26 |
|
|
PWM |
2.7V-6.0V |
38V |
0.2V |
1A |
91% |
5uA |
0.8MHz |
PWM |
SOT-26 |
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PWM |
2.7V-6.0V |
37V |
0.3V |
900mA |
90% |
0.28mA |
0.9MHz |
PWM |
100Hz-200KHz |
SOT-26 |
|
|
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 |
PWM |
10KHz-100KHz |
SOT-26 |
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白灯背光驱动IC>>>超大屏白灯背光驱动IC |
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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 |
效率 |
静态电流 |
工作频率 |
调光形式 |
调光频 率范围 |
封装 |
|
PWM |
2.2V-6V |
26V |
0.2V |
3A |
100uA |
800KHz |
PWM |
SOP-8 |
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PWM |
2.2V-6V |
27V |
0.2V |
3A |
100uA |
800KHz |
PWM |
DFN3*3-8 |
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PWM |
10V-35V |
200V |
0.2V |
扩流 |
400uA |
200KHz |
PWM |
SOP-8 |
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PWM |
3.6V-26V |
32V |
0.22V |
2A |
92% |
400KHz |
PWM |
SOP-8 |
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PWM |
3.6V-26V |
60V |
0.22V |
2A |
92% |
400KHz |
PWM |
SOP-8 |
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PWM |
5.0V-45V |
60V |
0.22V |
2A |
93% |
400KHz |
PWM |
SOP-8 |
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PWM |
3.6V-36V |
60V |
0.22V |
4A |
94% |
180KHz |
PWM |
TO252-5L |
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PWM |
5.0V-36V |
60V |
0.22V |
5A |
94% |
180KHz |
PWM |
TO263-5L |
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白灯背光驱动IC>>>同步升压白灯背光驱动IC |
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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 |
效率 |
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 |
2.7V-16V |
36V |
0.2V |
340mA |
81% |
3.2uA |
1.2MHz |
PWM |
SOT-26 |
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