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发布者:微桥 发布时间:2013-1-15 阅读:4935次    关键字: DC-DC
AX2016/A-40V,1.7A,Boost for 10 White LED Driver


AX2016/A-40V,1.7A,Boost for 10 White LED Driver DataSheet

GENERAL DESCRIPTION
    The AX2016 is a step-up converter designed for driving up to 10 series white LEDs for backlighting application. The AX2016 uses current mode, 1MHZ fixed frequency architecture to regulate the LED current, which is set through an external current sense resistor. Its low 300mV feedback voltage reduces power loss and improves efficiency. The OV pin monitors the output voltage and turns off the converter if an over-voltage condition is present due to an open circuit condition. The AX2016 includes under-voltage lockout, current limiting and thermal shutdown protection preventing damage in the event of an output overload. The
driver is available in small 6-pin TSOT-23 and 8-pin TDFN (2mm x 2mm) packages.

FEATURES
- 2.5V to 5.5V operating input voltage range
- Drives up to 10 series White LEDs
- 1MHz Fixed Switching Frequency
- Wide range for PWM dimming (200Hz to 200KHz)
- Internal 1.7A switching current limit
- Over Voltage Protection (OVP)
- Internal Soft-start Function
- Current limit and Thermal shutdown protection
- Under voltage Lockout
- Available in the 6-pin TSOT-23 and 8-pin TDFN Packages

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