TPS65261-1: EN Pull-down resistor

tateo yamashiro

Part Number: TPS65261-1

Hi,

We got a question from the customer about TPS65261-1.
Could you help us?

[Question]
They are considering using the EN pull-down resistor. How much is the recommended range of EN pull-down resistor?

Best Regards,
tateo

over 7 years ago

0 Jason Wang (BSR-MV) over 7 years ago

TI__Genius 9550 points

hi,
10k or lower is acceptable.

0 tateo yamashiro over 7 years ago in reply to Jason Wang (BSR-MV)

Guru 10890 points

Hi, Thank you for your reply. Let me confirm if I got it. How can we determine the pull-down resistor? We assume it is related to EN current. Is this understanding correct?

Ienx1=3.6uA
Venxl=1.1V min
Pull-down resistor=10k

therefore EN voltage at adding pull-down resistor is 10k*3.6uA=36mV

Best Regards,
tateo

0 Zhao Ma over 7 years ago in reply to tateo yamashiro

TI__Genius 15135 points

Hi, Tateo

Yes, you are right.

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TPS65261-1: EN Pull-down resistor