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TPS65580 Questions

Toshio Ushikubo
Mastermind 9620 points
Other Parts Discussed in Thread: TPS65580

Hello ,

Please answer following questions from customer.

Followings are question for datasheet SLVSC29A .

 

Q1: Variability of Soft-start time

Datasheet P4 describe “Soft-start time is 1.2ms typical”.

Please advice Variability of Soft-start time.

(Device that use power from TPS65580 has power-up duration minimum and maximum requirement, so customer needs Variability of Soft-start time.)

 

Q2: OCL, UVP, OVP influence to other channel

Please advice behavior of another channel when one channel detect OCL, UVP or OVP.

 

Q3: Behavior of OVP

Pleas e explain the behavior when OVP is detected, because datasheet has no explanation.

 

Q4: PG Output(Figure 1)

PG output high pulse after Vouty and Voutx reached target voltage.

Is this Figure1 correct ?

Because FUNCTIONAL BLOCK DIAGRAM(P7) shows that PG1/PG2/PG3 are input to NAND gate. So PG goes high when all output reached target voltage.

 

Q5: EN delay

Please advice EN_delay time of figure1.

 

Q6: ENx input resistance

Please advice if “ENx input resistance(225ohm min, 400ohm typ,  900ohm max)” means that ENx input has internal pull-down resistor 400ohm typ.

 

Regards.