TPS65987D: OVP Trip Point accuracy

Anderson2

Expert 1035 points

Part Number: TPS65987D

I'd like to know OVP function.

1. Would you tell me OVP Usage accuracy?

If I set OVP usage = 10% and the active PDO is 5V, the trip point is 5.5V+-??V.

If I set OVP usage = 6.08V and the active PDO is 5V, the trip point is 6.08V+-??V.

2. Where do the 987D detect voltage? PP_HVx pin? or VBUSx pin?

over 4 years ago

0 Eric Beljaars over 4 years ago

TI__Mastermind 36751 points

Hi Anderson,

1. Section 5 of the following app note highlights the OVP behavior of the TPS65987D for different OVP settings: www.ti.com/.../slva994.pdf

2. The TPS65987D detects voltage on the VBUS pins for OVP and UVP

Thank you,
Eric

0 Anderson2 over 4 years ago in reply to Eric Beljaars

Expert 1035 points

Thank you but I want to know the accuracy.

ex, If the OVP trip point is set to 0x7, I know the.typical trip point becomes 6.08V.

What is maxmum value and minimum value?

0 Eric Beljaars over 4 years ago in reply to Anderson2

TI__Mastermind 36751 points

Hi Anderson,

This is not a parameter that we specify. From the App Note I linked above, you can see that the OVP trip point is accurate from the included scope shots.

Thank you,
Eric

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TPS65987D: OVP Trip Point accuracy