TPS62170: About EN pin

Tsukui Yusuke

Guru 21930 points

Part Number: TPS62170

Hi,

Customers want to control EN with external signals (3.3V).
Please tell me the pull-down and pull-up resistor you recommended.
And Could you tell me the internal circuit of the EN terminal?

Best Regards,
Yusuke/Japan Disty

over 6 years ago

0 Juergen over 6 years ago

TI__Expert 5425 points

Of course the EN pin can be driven with 3.3V logic signals. EN of TPS62170 is a high impedance logic input. You can find the related parameters in the electrical characteristics table in the datasheet.

0 Tsukui Yusuke over 6 years ago in reply to Juergen

Guru 21930 points

Juergen-san,

Thank you for your quick response.
Can you introduce the recommended pull up / pull down resistors?

Best Regards,
Yusuke/Japan Disty

0 Juergen over 6 years ago in reply to Tsukui Yusuke

TI__Expert 5425 points

Yusuke-san,

why would you want to use pull up and pull down resisitors? If you want to disable the device you can connect EN directly to GND and for enabling it you can connect it directly to 3.3V.

Best regards,
Juergen

Power management

Power management forum

TPS62170: About EN pin