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TPS26620-23EVM: Thermal distribution

Kuramochi Tadahiko
Guru 28715 points
Part Number: TPS26620-23EVM
Other Parts Discussed in Thread: TPS2662

Hi,

My customer is considering to use the TPS2662x and concerning thermal characteristics.

For their reference, could you provide thermal distribution at full load condition on the EVM?

Best Regards,

Kuramochi

  • 0
    TI__Guru** 102661 points

    Hi Kuramochi,

    We will get back in a couple of days.

    BR, Rakesh

  • 0 in reply to Rakesh
    TI__Expert 8620 points

    Hello Kuramochi-San,

    With TPS2662 or similar device, thermal dissipation plays a major role during start-up of device. Once the output has reached input voltage (VIN = VOUT), the dissipation in device is significantly reduced. At full load current (0.88A), the dissipation in TPS2662 device will be ~0.4W [=I2R] after the start-up.

    During start-up, power dissipation can be controlled by setting tdVtT with a cap on dVdT pin. This is described in Section 10.2.2.4 of the datasheet.

    Let us know if you have any further queries.