NJW4813 Series
Dual Half Bridge Driver with Boost Converter (Wide Input Range Products)

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  • Description

    The NJW4813 is a dual half bridge driver with boost converter IC.Output voltage boost from Li-ion battery and a 5V power supply and can drive a piezo device by two half bridge drivers.The NJW4813 is able to stable startup by soft start function in boost SW.REG..The dual half bridge driver improves control characteristics from a microcomputer in response to independent signal input in each channel.The input frequency operates to 300kHz and in the case of failure, it can output a fault flag.

  • Spec
    Channels 2(Half)
    Output Rise/Fall Time Typ. 400nsec / 400nsec
    Structure Bi-CMOS Technology
    Wide Operating Temperature -40℃ to +85℃
    Junction Temp. +150℃
    Package PCSP20-E3
    Boost Converter Block Output Switch Voltage 40V max.
    Switching Current 1A min.
    PWM Control
    Oscillation Frequency Range (380kHz to 810kHz)
    Soft Start Function (17ms typ.)
    Over Current Protection
    Half Bridge Driver Block Internal 2-Channnel Half Bridge
    Each Channel Operates Individually
    Output Switch Peak Current (+280 / -250mA typ.)
    Switching Frequency (300kHz max.)
    Output Shut Down Control
    Over Current Protection
    Fault Indicator Output
    Note Under Voltage Lockout
    Built-in Thermal Shutdown
    Standby Function

    Protections / Functions

  • Technical
  • Quality &
    • Refer to the datasheets for the details on the product.
    • The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.

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Functional Description

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Category:Switching Drivers

Sub Ctegory Boost Converter
No.of Circuit 2
Drive Circuit Half
Supply Voltage
Supply Voltage
Output Peak
Current typ(A)
Switching Current