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TPS65219: TPS6521903RHBR Reset

G pandi
Intellectual 390 points
Part Number: TPS65219
Other Parts Discussed in Thread: AM625,

Hi,

   I am using AM625 EVK board. In that board if I press the  warm reset switch SW3,

   (PMIC - MODE/RESET)   PMIC all power line reset are not ??? 

 

    

Regards

Pandian

  • +1
    TI__Mastermind 22166 points

    Hi Pandian,

    Thanks for reaching out! When the SW3 push button was pressed, did you see the RESETSTATz signal going low?

    The MODE/RESET pin on the TPS6521903 PMIC was configured for WARM RESET. This means all the PMIC rails will stay ON and some of the register settings (i.e. output voltages) go back to the default values. Warm reset on the processor does not requires to power cycle the PMIC rails. Below is a capture from the TPS65219 datasheet that explains the expected behavior if a "WARM" reset is triggered on the PMIC. Please let us know if you have any additional questions. 

    Thanks,

    Brenda