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Tool/software:
Hello team,
We realized that the power down sequence of TPS6521901 is violating the sequence for AM6442. (Eventhough it is recommended device by TI)
Could you check if TPS6521901 is violating the AM6442 power down sequence?
If so, how should we use this PMIC for AM6442?
One of the Apps engineer (Kallikuppa Sreenivasa), also mentioned this on other thread.
https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1458297/am6442-power-down-sequence-restrictions
VDDSHV power rails to turn off as lateas the last core supply, but we do not allow it to turn off after the last core supply."
↓ From Datasheet of AM6442. (VDDSHV shouldn't turn off after VDD_CORE)
↓ From "Powering the AM64x with the TPS65220 or TPS65219 PMIC" app note.
Looks like DVDD3V3 (VDDSHVx) is turning off after VDD_CORE from the Figure 4-6 below.
Best Regards,
Kei Kuwahara
