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SN6501: POwer dissipation

Srinivasan Elumalai
Prodigy 60 points
Part Number: SN6501

Hello,

I need to calculate the power dissipation of SN6501QDBVRQ1, Any power dissipation calculation or datasheet  there for SN6501QDBVRQ1,

  • 0
    TI__Mastermind 49445 points

    Hi Srinivasan,

    Thank you for showing interest in SN6501-Q1.

    The average supply current (Icc) consumed by SN6501 is given in the datasheet, as shown in the table below.

    Apart from Icc current, the device will also have power dissipated in the two MOSFETs connected to pins D1 & D2. This power dissipated in the MOSFETs can be calculated using the RON value stated in datasheet and the current passing through these MOSFETs which depends on the load current. The average input current (Iin) to the transformer center tap gets distributed across these two identical MOSFETs. Hence, you can use Iin and RON to calculate power dissipated in MOSFETs and Vcc & Icc to estimate power dissipated in rest of the device. The total value should give you total power consumption in device.

    Regards,
    Koteshwar Rao