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MPQ3323B-AEC1 4.5-16V, 320mA, 4CH LED Driver QFN-24
MPQ3323B-AEC1 4.5-16V, 320mA, 4CH LED Driver QFN-24

MPQ3323B-AEC1 4.5-16V, 320mA, 4CH LED Driver QFN-24

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pMPS MPQ3323B-AEC1 — LED Driver, 4.5-16V input, 320 mA output, 4 channels, QFN-24, AEC-Q100./p
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    MPQ3323B-AEC1 4.5-16V, 320mA, 4CH LED Driver QFN-24

    The MPS MPQ3323B-AEC1 is a LED Driver. It operates from a 4.5 V to 16 V input, is rated for 320 mA and drives 4 LED strings. It is supplied in a QFN-24 package. The part is AEC-Q100 qualified.

    The MPQ3323B is a 4-channel LED driver that can operate from a wide 4.5V to 16V input voltage (VIN) range.

    Key Specifications

    Part NumberMPQ3323B-AEC1
    FunctionLED Driver
    Input Voltage4.5 V to 16 V
    Current Rating320 mA
    Channels4
    InterfaceI²C
    PackageQFN-24
    QualificationAEC-Q100
    Ordering CodesMPQ3323B-AEC1

    Features

    • Wide 4.5V to 16V Input Voltage (VIN) Range
    • 4 Channels, Max 320mA/Ch
    • LED Current (ILED) Configured via External Resistor
    • 6-Bit Analog Dimming for Each Channel
    • 12-Bit Pulse-Width Modulation (PWM) Dimming for Each Channel
    • Selectable 220Hz, 250Hz, 280Hz, or 330Hz PWM Dimming Frequency (fPWM)
    • Refresh Signal Output
    • I2C Interface
    • 10 Addresses Configurable via External Resistor
    • Configurable ILED Slew Rate

    Typical Application Circuit

    MPQ3323B-AEC1 typical application circuit
    MPQ3323B-AEC1 typical application circuit, as published in the MPS datasheet.

    Applications

    • Automotive Displays
    • Instruments Clusters

    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 MPQ3323B-AEC1 support?
    4.5 V to 16 V. The rated output is 320 mA.
    Which package and ordering codes apply to the MPQ3323B-AEC1?
    QFN-24; order codes include MPQ3323B-AEC1.
    What are the defining features of the MPQ3323B-AEC1?
    Wide 4.5V to 16V Input Voltage (VIN) Range 4 Channels, Max 320mA/Ch
    Is the MPQ3323B-AEC1 qualified for automotive designs?
    Yes — it is AEC-Q100 qualified. Confirm the grade against the qualification summary in the datasheet before specifying it on a safety-related rail.

    Shenzhen Gaorunxin Technology Co., Ltd

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    Shenzhen Gaorunxin Technology Co., Ltd

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