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TPS548D22 OVP,UVP operation

K.Hamamoto
Guru 12155 points

Hi

I have a question about OVP and UVP operation.

In this device, there is a mode selection(VSEL[0]) for OVP and UVP.

VSEL[0]=1 : Latch-Off

VSEL[1]=0 : Hiccup

On the section 7.3.7.3 OVP and UVP, is this about Hiccup mode? or about Latch-off mode ?

Regards,

Koji Hamamoto

  • 0
    TI__Guru**** 191445 points
    The VSEL function sets either hiccup or latching operation for UVP in conjunction with current limit. Cycle by cycle current limit will tend to reduce the output voltage towards the UVP threshold. You have the option to latch off or perform hiccup automatic restart.