Doubt with CTRL pin for the power module VRB2405S-6WR3

Asked Apr 22 '22 at 14:48

Active Apr 23 '22 at 01:44

Viewed 35 times

I want to use the DC-DC power module for my project. Datasheet for the module is available at the following link.

https://www.mornsun-power.com/public/uploads/pdf/VRB_S-6WR3.pdf

This module uses a Ctrl pin control secondary on/off for the module. However, I don't know its impedance. I have the following circuit in my mind to control the module. I need your guidance to see if it is the right way or not. Specially with the 150k ohm part.

schematic

^{simulate this circuit – Schematic created using CircuitLab}

Update: (Circuit suggested by @jsotola)

schematic

^{simulate this circuit}

edited Apr 23 '22 at 01:44

asked Apr 22 '22 at 14:48

SKGadi

2

the datasheet implies that the CTRL input has an internal pullup, as per top of page 2 – jsotola Apr 22 '22 at 15:03
Yes, So to control with 3.3V, the circuit I presented in the question is correct. Am I right? – SKGadi Apr 22 '22 at 16:09
1

it should work ... pullup resistor may not be necessary – jsotola Apr 22 '22 at 18:22
@jsotola, I got it. I updated the question. Please see if that is how you are suggesting. Thank you. – SKGadi Apr 23 '22 at 01:44

Doubt with CTRL pin for the power module VRB2405S-6WR3

0 Answers0