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TAS5411-Q1: Saturation current of inductor

Kuramochi Tadahiko
Guru 28715 points
Part Number: TAS5411-Q1

Hi,

I received the following question from my customer.

How should we design the saturation current of the inductor?

Should we consider the actual max output current or current limit value of the TAS5411Q1?

Best Regards,

Kuramochi

  • 0
    TI__Expert 4080 points
    Hi Kuramochi-san,

    I would recommend choosing inductors that are rated above the output current limit value. For example, with the TAS5411-Q1, the output current limit is 2.4A, and the inductors on the EVM are rated at 2.7A. I recommend having some margin because, depending on how the output current is ramped and due to propagation delay, the output current may exceed the output current limit for a brief moment.

    Is your customer considering/evaluating any specific inductors?

    Regards,
    Brian Angiel