HomeProductsDC LED DriversBacklight LED Drivers

SY22141QDC

Production
High Efficiency 4-string LED Driver with Build-in Boost Regulator
Datasheet
SY22141QDC High Efficiency 4-string LED Driver with Build-in Boost Regulator Datasheet
    Part NumberSY22141QDC
    Fsw (MHz)0.3 to 2
    Dimming ModePWM
    Channels1
    PackageQFN3x3-16
    Vin_min (V)2.8
    Vin_max (V)24
    Vo_max (V)
    Io_max (A)0.04
    Features / Special FunctionBoost+LDO
    ApplicationNotebook Backlight
    • Wide input voltage range: 2.8-24V
    • Programmable switching frequency from 300kHz to 2MHz
    • Drive up to 4 strings of LEDs with up to 10 LED per string
    • Minimum on time: 80ns typical
    • Adjustable over voltage protection
    • Low Rdson of internal boost switch: 220mohm
    • 10000:1 PWM brightness control at 200Hz
    • Dimming Frequency: 100Hz~30kHz
    • ±2% current matching among strings guaranteed for above 10% dimming level
    • Programmable LED current: up to 40mA per string. ±3% accuracy
    • Internal softstart
    • Compact packages: QFN3x3-16

    Evaluation Board

    • 2022-02-09_155703

      Photo of evaluation board

    • 2022-02-09_155715

      Photo of evaluation board

    • 2022-02-09_155728

      Photo of evaluation board

    EVB_SY22141QDC

    The EVB_SY22141QDC is intended for evaluating High Efficiency 4-string LED Driver

    with Build-in Boost Regulator

    Technical Documentation