TPS55010: Configure the TPS55010 to Fly-buck,now look for the solution for SCP protection at secondary winding

Eric Lai

Part Number: TPS55010

Hi Expert,

The customer configure the TPS55010 to Fly-buck,but see the high voltage stress at PH pin during the secondary winding short testing.

Seems there is no internal low side Mosfet current limiter of TPS55010.

Pls advice whether the TPS55010 can support the Fly-buck.

And any solution/idea can provide the protection for the secondary winding short testing.

Thanks.

Best regards,

Eric Lai

Field Application Engineer

Texas Instruments Taiwan Limited

O: +886-2-2175-2582

M: +886-909-262-582

E-Mail:Eric.Lai@ti.com

0 Excel Regidor over 4 years ago

Hi Eric,

TPS55010 has low side switch current limit (see figure below).

Can you share the waveform on PH pin?

Best regards,

Excel

0 Eric Lai over 4 years ago in reply to Excel Regidor

Hi Excel,

I had send the schematic and testing waveforms to your mail.

Kindly give us the support of the TPS55010 SCP test.

Best regards,

Eric Lai

Field Application Engineer

Texas Instruments Taiwan Limited

O: +886-2-2175-2582

M: +886-909-262-582

E-Mail:Eric.Lai@ti.com

0 Excel Regidor over 4 years ago in reply to Eric Lai

Hi Eric,

I'm closing this thread as we are discussing the customer concern internally.

Best regards,

Excel

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