CXLE8149 CXLE8150 is a step-up converter designed for driving up to 7 series white LED's from a single cell Lithium Ion battery. Its low 250mV feedback voltage reduces power loss and improves efficiency. Optimized operation frequency can meet the requirement of small LC filters value and low operation current with high efficiency. Internal soft start function can reduce the inrush current. Tiny package type provides the best solution for PCB space saving and total BOM cost

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[ CXLE8149 ]"
目录
7.相关产品
产品概述 返回TOP
CXLE8149 CXLE8150 is a step-up converter designed for driving up to 7 series white LED's from a single cell Lithium Ion battery. Its low 250mV feedback voltage reduces power loss and improves efficiency. Optimized operation frequency can meet the requirement of small LC filters value and low operation current with high efficiency. Internal soft start function can reduce the inrush current. Tiny package type provides the best solution for PCB space saving and total BOM cost. CXLE8149 CXLE8150 is available in SOT23-6 package that is PB free.
产品特点 返回TOP
2.5V to 5.5V Input Voltage
Drivers up to 8 Series WLEDs
Low 250mV Feedback Voltage
1.2MHz Fixed Switching Frequency
Internal 1.6A Switch Current Limit
Internal Compensation
Thermal Shutdown
Over Voltage Protection
Dimming with wide Frequency Range
Available in SOT23-6 Package
应用范围 返回TOP
Camera Flash White LED
PDA LED back light
Digital still cameras
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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升压型LED背光/照明驱动电路(Step-up White LED Driver ) |
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Applications: Step-up converter to drive white-LED, constant current output, LED backlight |
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Part No. |
Mode |
VIN |
VOUT |
IQ |
FOSC |
Eff. |
FB Voltage |
Package |
Application |
PFM |
0.8~9V |
36uA |
300kHz |
82% |
200mV |
SOT89-5 |
Step-up Converter To Drive One Or Two 1W White LEDs |
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PFM |
2~6V |
19V Max |
93μA |
3MHz |
80% |
200mV |
SOT23-6 |
STBA,PHONE,PDA,GPS |
|
PWM |
2.5~5.5V |
28V Max |
150μA |
1.2MHz |
90% |
250mV |
SOT23-6 |
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PWM |
2~24V |
30V Max |
150μA |
1.2MHz |
96% |
250mV |
SOT23-6 |
机顶盒 |
|
PWM |
2.5~5.5V |
30V Max |
150μA |
1.2MHz |
96% |
1.23V |
SOT23-5 |