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TPS6594-Q1: What is difference between UV and UVLO

Jaeyoung Yoo
Prodigy 45 points
Part Number: TPS6594-Q1
Other Parts Discussed in Thread: TDA4VM-Q1

Tool/software:

Hi TI experts 

We are using SoC TDA4VM-Q1 and PDN power soultion(TPS65941213, TPS65941111) 

I have several questions about TPS65941213RWERQ1 PMIC.

1. What is difference between VCCA_UV and VCCA_UVLO

2. When VCCA_UV & VCCA_UVLO occur in PMIC

  • 0
    TI__Mastermind 20105 points

    Hello Jaeyong,

    VCCA_UV is a configurable threshold controlled by the VCCA_VMON_EN bit and VCCA_PG_WINDOW register. For PDN-0C ('1213 +'1111), VCCA_UV is -10% from 3.3V VCCA set point. In other words, VCCA_UV threshold is ~2.97V. If VCCA_UV is triggered, the PMICs will execute an Orderly Shutdown sequence and then make a recovery attempt.

    VCCA_UVLO is NOT configurable and is always enabled. VCCA_UVLO falling threshold is ~2.75V. If VCCA falls below UVLO, the PMICs will execute an Immediate Shutdown sequence and then make a recovery attempt.