Esp32-wroom-32 Discharge circuit

anmolaggarwal
Posts: 2
Joined: Sat May 16, 2020 3:44 am

Esp32-wroom-32 Discharge circuit

Postby anmolaggarwal » Sat May 16, 2020 3:53 am

This is with respect to the discharge circuit given in esp32 datasheet - Fig-5 , Page-14 (https://www.espressif.com/sites/default ... eet_en.pdf).
What is the need/purpose of this discharge circuit?
Attachments
esp-DC.PNG
Discharge circuit
esp-DC.PNG (61.85 KiB) Viewed 710 times

amoghjain
Posts: 9
Joined: Mon Nov 30, 2020 9:04 am

Re: Esp32-wroom-32 Discharge circuit

Postby amoghjain » Wed Dec 02, 2020 7:19 pm

In regards to purpose of the circuit: when the power is cut off, capacitor may take some time to discharge ie sometimes upto 20 seconds and esp will report 'brownout' issues. In order to avoid we have a fet/transistor that discharges via the 1k resistor when vcc is pulled low.

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