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Thread: Ice5ar477ag

  1. #1
    New Member New Member levnemets is on a distinguished road
    Join Date
    Aug 2017


    Hello, What is the best way to disable (turn OFF) ICE5AR477AG ? Is it possible to short GATE pin for this purpose or to short (or reduce voltage) on pin Vcc? Thanks

  2. #2
    Infineon Employee
    Infineon Employee
    Srivatsa is on a distinguished road
    Join Date
    Apr 2018
    Hi, The ICE5AR477AG is a CoolSET™ device with integrated high voltage MOSFETs.

    You can look into the design guide for this device at

    Here it says, during operation, the VCC voltage is continuously monitored. If VCC is either below VVCC_OFF for 50 µs (tVCC_OFF_B) or above VVCC_OVP for 55 µs (tVCC_OVP_B), the power MOSFET is kept switched off. After the VCC voltage falls below the threshold VVCCoff,
    the new start-up sequence is activated. The VCC capacitor is then charged up. Once the voltage exceeds the threshold VVCC_ON, the IC begins to operate with a new soft-start. This option should give a clean shutdown and start-up after every disable.

    For further recommendations pls contact local Infineon sales or field application engineers.
    More information can be found under
    Please contact our Technical Assistance Center for further inquiries

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