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TPS65217: Timing sequence be upset

LeoChen
Intellectual 560 points
Part Number: TPS65217
Other Parts Discussed in Thread: AM3352

Tool/software:

Dears,

My customer using TPS65217C for AM3352, but LDO4 pull up by other pins.

Showing working timing sequence as below, question is if working always as it, is there any potential risk?

1. LDO1 2.LDO3 3.DCDC1 4.LDO4

  • 0
    TI__Prodigy 315 points

    Hello,

    Thank you for using E2E! The power-up sequence shown in the attached document is the default sequence for the TPS65217C. This sequence can be changed by programming the SEQ1-SEQ6 registers. Do you know if the customer used any I2C programming on the PMIC?

    Could you also share the pin configuration for LDO4? 

    Best,

    Matt