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MP3320A 1.8-5.5V, 4CH Charge Pump RGB LED Driver QFN-14
MP3320A 1.8-5.5V, 4CH Charge Pump RGB LED Driver QFN-14

MP3320A 1.8-5.5V, 4CH Charge Pump RGB LED Driver QFN-14

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pMPS MP3320A — Charge Pump RGB LED Driver, 1.8-5.5V input, 4 channels, QFN-14./p
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    MP3320A 1.8-5.5V, 4CH Charge Pump RGB LED Driver QFN-14

    The MPS MP3320A is a Charge Pump RGB LED Driver. It operates from a 1.8 V to 5.5 V input and drives 4 LED strings. It is supplied in a QFN-14 package.

    The MP3320A is a 4-channel, self-adaptive, charge pump RGB LED driver that operates across a wide 1.8V to 5.5V input voltage (VIN) range.

    Key Specifications

    Part NumberMP3320A
    FunctionCharge Pump RGB LED Driver
    Input Voltage1.8 V to 5.5 V
    Channels4
    InterfaceI²C
    PackageQFN-14
    Ordering CodesMP3320A

    Features

    • 1.8V to 5.5V Input Voltage (VIN) Range
    • 5.5V Max Output Voltage (VOUT)
    • 4 Channels, Max 51mA/Ch
    • Enable/Disable for Each Channel
    • Internal, Self-Adaptive Charge Pump
    • Charge Pump Auto-Transfer Rate: 1x, 1.5x, and 2x
    • 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

    Typical Application Circuit

    MP3320A typical application circuit
    MP3320A 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 MP3320A support?
    1.8 V to 5.5 V.
    Which package and ordering codes apply to the MP3320A?
    QFN-14; order codes include MP3320A.
    What are the defining features of the MP3320A?
    1.8V to 5.5V Input Voltage (VIN) Range 5.5V Max Output Voltage (VOUT)

    Shenzhen Gaorunxin Technology Co., Ltd

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    Shenzhen Gaorunxin Technology Co., Ltd

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