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TPS65987D: SW OCC

Part Number: TPS65987D

Hi,

I am checking OCC trip point.

Even if I changed Peak Current setting, it looks OCC point will not change.

Does it need any other setting?

Experiment1

[Condition]

 PP1 = Source

 PP2, 3 and 4 = Disabled

 UVP usage PP_HV = 50%

 PDO2 = 20V 3A and Peak Current = 130%

 Active PDO is PDO2.

When the load current is over 4.3A, internal FET will open and protect the application.

Experiment2

[Condition]

 PP1 = Source

 PP2, 3 and 4 = Disabled

 UVP usage PP_HV = 50% 

 PDO2 = 20V 3A and Peak Current = 200%

 Active PDO is PDO2.

When the load current is over 4.3A, internal FET will open and protect the application.

The trip point was not changed even if Peak Current is 200%.