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MP3320B 2-5.5V, 4CH Synchronous Boost RGBW LED Driver QFN-14
MP3320B 2-5.5V, 4CH Synchronous Boost RGBW LED Driver QFN-14

MP3320B 2-5.5V, 4CH Synchronous Boost RGBW LED Driver QFN-14

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pMPS MP3320B — Synchronous Boost RGBW LED Driver, 2-5.5V input, 4 channels, QFN-14./p
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    MP3320B 2-5.5V, 4CH Synchronous Boost RGBW LED Driver QFN-14

    The MPS MP3320B is a Synchronous Boost RGBW LED Driver. It operates from a 2 V to 5.5 V input and drives 4 LED strings. It is supplied in a QFN-14 package.

    The MP3320B is an 4-channel, synchronous boost RGBW LED driver that operates across a wide 2V to 5.5V input voltage voltage (VIN) range.

    Key Specifications

    Part NumberMP3320B
    FunctionSynchronous Boost RGBW LED Driver
    Input Voltage2 V to 5.5 V
    Channels4
    InterfaceI²C
    PackageQFN-14
    Ordering CodesMP3320B

    Features

    • 2V to 5.5V Input Voltage (VIN) Range
    • 5.4V Max Output Voltage (VOUT)
    • 4 Channels, Max 102mA/Ch
    • Enable/Disable for Each Channel
    • Internal Synchronous Boost Converter
    • 8-Bit Analog Dimming for Each Channel
    • 10-Bit Pulse-Width Modulation (PWM) Dimming for Each Channel
    • Configurable PWM Dimming Frequency (fPWM)
    • 400kHz I2C-Compatible Interface
    • Configurable Phase Shift

    Typical Application Circuit

    MP3320B typical application circuit
    MP3320B typical application circuit, as published in the MPS datasheet.

    Applications

    • Wearable Devices
    • LED Indicators

    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 MP3320B support?
    2 V to 5.5 V.
    Which package and ordering codes apply to the MP3320B?
    QFN-14; order codes include MP3320B.
    What are the defining features of the MP3320B?
    2V to 5.5V Input Voltage (VIN) Range 5.4V Max Output Voltage (VOUT)

    Shenzhen Gaorunxin Technology Co., Ltd

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    Shenzhen Gaorunxin Technology Co., Ltd

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