TPS2001D: reverse voltage protection at EN=Low

Toshiro Imi

Expert 6260 points

Part Number: TPS2001D

Hello,

Our customer has asked if TPS2001D is damaged at EN=Low with/without certain power supply.

case-1 : VIN=off (0V), EN=off (Low : disenable), VOUT=5.5V

case-2 : VIN=on (e.g. 5V), EN=off (Low : disenable), VOUT=5.5V.

I suppose that approx.10mA current is flown to discharge resistance in case-2, but no current in case-1. So case-1 is safe but case-2 is damage but depending on resistor current capability.

Could you please help us if TPS2001DDGKR is going to be damaged in both cases.

Best regards,

over 2 years ago

0 Kuno Wu over 2 years ago

TI__Mastermind 18556 points

Will reply to you soon.

0 Ziv Zhang over 2 years ago

TI__Mastermind 18031 points

Not going to damage the device in both case.

If you have any other concern, contact me any time.

If you think resolved, please help click 'Issue is solved button'.

Thanks.

0 Toshiro Imi over 2 years ago in reply to Ziv Zhang

TI__Expert 6260 points

Thank you very much.

One additional question.

Are there any leakage path from VOUT to VIN or GND in both case.

Best regards,

0 Ziv Zhang over 2 years ago in reply to Toshiro Imi

TI__Mastermind 18031 points

No as both cases are disabled.

If you have any other concern, contact me any time.

If you think resolved, please help click 'Issue is solved button'.

Thanks

0 Toshiro Imi over 2 years ago in reply to Ziv Zhang

TI__Expert 6260 points

Thank you very much for your feedback.

I understood no damage and leakage are expected if TP2001DDGKR is disabled in VIN power supply condition independent.

best regards,

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TPS2001D: reverse voltage protection at EN=Low