GRX Technology Co, Ltd
MP3202 2.5-6V, 1.3A, 1MHz Fixed Frequency White LED Driver TSOT23
MP3202 2.5-6V, 1.3A, 1MHz Fixed Frequency White LED Driver TSOT23

MP3202 2.5-6V, 1.3A, 1MHz Fixed Frequency White LED Driver TSOT23

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pMPS MP3202 — Fixed Frequency White LED Driver, 2.5-6V input, 1.3 A output, TSOT23./p
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    MP3202 2.5-6V, 1.3A, 1MHz Fixed Frequency White LED Driver TSOT23

    The MPS MP3202 is a Fixed Frequency White LED Driver. It operates from a 2.5 V to 6 V input, is rated for 1.3 A and switches at 1 MHz. It is supplied in a TSOT23 package.

    The MP3202 is a step-up converter designed for driving up to 39 white LEDs (13 strings of 3 LEDs each) from a 5V system rail.

    Key Specifications

    Part NumberMP3202
    FunctionFixed Frequency White LED Driver
    Input Voltage2.5 V to 6 V
    Current Rating1.3 A
    Switching Frequency1 MHz
    InterfacePWM
    Peak Efficiency92%
    PackageTSOT23
    Ordering CodesMP3202

    Features

    • 2.5V to 6V Input Voltage Range
    • On Board Power MOSFET
    • Drives up to 39 White LEDs at 5V Input
    • Up to 92% Efficiency
    • Over 1MHz Fixed Switching Frequency
    • Open Load Shutdown
    • Low 104mV Feedback Voltage
    • Soft-Start/PWM Dimming
    • UVLO, Thermal Shutdown
    • Internal 1.3A Current Limit

    Typical Application Circuit

    MP3202 typical application circuit
    MP3202 typical application circuit, as published in the MPS datasheet.

    Applications

    • Cell Phones
    • Handheld Computers and PDAs
    • Digital Still Cameras
    • Small LCD Displays "MPS" and "The Future of Analog IC Technology" are Registered Trademarks of Monolithic Power Systems, Inc.

    Design Notes

    • Channel-to-channel current matching sets backlight uniformity; check the matching spec at the current you will actually run.
    • In boost topologies the OVP threshold must clear the worst-case forward voltage of the longest string, including temperature and binning spread.
    • Keep PWM dimming above 200 Hz to stay clear of visible flicker, and away from the audio band if the product has a speaker.
    • Size the inductor and output capacitor for the string current ripple, not the total LED current.

    Common Questions

    What input voltage does the MP3202 support?
    2.5 V to 6 V. The rated output is 1.3 A.
    Which package and ordering codes apply to the MP3202?
    TSOT23; order codes include MP3202.
    What are the defining features of the MP3202?
    2.5V to 6V Input Voltage Range On Board Power MOSFET

    Shenzhen Gaorunxin Technology Co., Ltd

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    Shenzhen Gaorunxin Technology Co., Ltd

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