TPS25740B: EVM Current Capability

Michael Brantley

Part Number: TPS25740B
Other Parts Discussed in Thread: TPS65987D

Hi,

Testing the TPS25740B EVM straight out of the box with my typeC PD phone, I only see 9V/1.3A, whereas I can measure the full 9V/2A with a wall charger. The default config looks like it should be able to support 9V/2A, though I've also tried changing the J7/8 jumpers but nothing changed.

How can I support the full 2A?

Thanks

Michael

over 5 years ago

0 Adam Mc Gaffin over 5 years ago

TI__Mastermind 28830 points

Hi Michael,

Are you evaluating the TPS25740B for a potential new customer system? If so, it is currently NRND, and we are recommending that new projects move over to the TPS65987D.

0 Michael Brantley over 5 years ago in reply to Adam Mc Gaffin

TI__Intellectual 1535 points

Adam,

This is a separate project and do not require the complexity of the TPS65987D. Does the TPS25740B EVM not support 9V/2A?

Michael

0 Adam Mc Gaffin over 5 years ago in reply to Michael Brantley

TI__Mastermind 28830 points

How are you determining that the EVM is not able to support that the 9V/2A? If your configuration is correct, and the jumpers align with what is needed based on Table 3 of the TPS25740B datasheet, then it should support 9V/2A. Do you have a PD analyzer to see the PD contract that is negotiated between the phone and EVM?

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TPS25740B: EVM Current Capability