TLV61070A: Voltage from Vout to Vin

Dice-K

Part Number: TLV61070A

Hi support team,

If a wrap-around voltage (0.5V to 5V) from an external circuit is input to the Vout side without energizing the Vin side, will the voltage on the Vin side become greater than 0V?

Regards,
Dice-K

4 months ago

+1 Travis Wang 4 months ago

TI__Expert 4115 points

Hi Dice,

No, our device has true shutdown function and will block current from both Vin and Vout. So the Vin will not be affected.

Best Regards,

Travis

0 Dice-K 3 months ago in reply to Travis Wang

Mastermind 6560 points

Hi Travis,
Thank you for your reply.

I think Shutdown mode is when Enable is Low.
Is Vin affected by Vout when Enable is High?

Best regards,
Dice-K

0 Travis Wang 3 months ago in reply to Dice-K

TI__Expert 4115 points

Hi Dice,

That depends on your bias voltage type. Is it a single-direction Voltage source that only output current or it's a bi-directional Voltage source that can sink current to clamp Vout?

Best Regards,

Travis

0 Dice-K 3 months ago in reply to Travis Wang

Mastermind 6560 points

Hi Travis,
Thank you for your reply.

I'm not sure which one, so please let me know about both cases.

Best regards,
Dice-K

0 Travis Wang 3 months ago in reply to Dice-K

TI__Expert 4115 points

Hi Dice,

It's hard to describe by words so I draw these figures.

For bi-directional clamping:

For single directional clamping:

Best Regards,

Travis

0 Dice-K 3 months ago in reply to Travis Wang

Mastermind 6560 points

Hi Travis,
Thank you for your great support.

Under the following conditions, if a wrap-around voltage (0.5V to 5V) from an external circuit is input to the Vout side, will the voltage on the Vin side be greater than 0V?

VIN = 0V
EN = High

Best regards,
Dice-K

+1 Travis Wang 3 months ago in reply to Dice-K

TI__Expert 4115 points

Hi Dice,

If the Vin is 0V, the device will enter UVLO shutdown. So the result will be the same as EN=0 situation.

Best Regards,

Travis

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TLV61070A: Voltage from Vout to Vin