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TPS546D24A: TPS546D24A UV/ OV hardware support

Part Number: TPS546D24A

Dear Team ,

Good day!

Our customer are trying to use the TPS546D24A , but he do not prepare to use the PMBUS , they want to fix the output voltage /frequency /UV /OV by hardware , as the datasheet mentioned that 

"The Hardware for VOUT_OV_FAULT_LIMIT is implemented as a fixed percentage of the current output voltage target"

For the output voltage and frequency , I think it will be fine via hardware setting ,  but for the UV / OV  , the datasheet just describe the hardware can fix the percentage , but do not describe which pin determined

the value , it do not have the value map neither .

So , My query is : 

 Does the TPS546D24A  support use the hardware setting to modify the " VOUT_OV_FAULT_LIMIT ” “VOUT_OV_FAULT_RESPONSE” “VOUT_OV_WARN_LIMIT”  (40h-45h), without PMBUS .

BR,

Leon.liu

  •  

    VOUT_UV_FAULT_LIMIT, VOUT_UV_WARN_LIMIT, VOUT_UV_FAULT_RESPONSE, VOUT_OV_WARN_LIMIT, VOUT_OV_FAULT_LIMIT, and VOUT_OV_FAULT_RESPONSE are set by NVM and do not have pin programming options to alter them without PMBus commands.

    VOUT_UV_FAULT_LIMIT is pre-programmed to 85% of the programmed VOUT

    VOUT_UV_WARN_LIMIT is pre-programmed to 90% of the programmed VOUT

    VOUT_OV_WARN_LIMIT is pre-programmed to 110% of the programmed VOUT

    VOUT_OV_FAULT_LIMIT is pre-programmed to 115% of the programmed VOUT

    VOUT_UV_FAULT_RESPONSE and VOUT_OV_FAULT_RESPONSE are both pre-programmed to shutdown immediately and restart infinite number of times following a delay.