[2ED4820-EM] Bidirectional current and low side drive

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SaKo
Level 1
Level 1
First reply posted First question asked Welcome!

For a new BMS project, I would like to ask regarding the 2ED4820-EM:

  1. Can it be used with back-to-back source configuration for bidirectional current control? The current flow will have 2 directions, one for load connection and one when the charger is connected
  2. Can we use one channel as a low-side MOSFET driver? On your site is says that it is possible at the expense of increased current on VBAT (+8mA) but there no any reference design

Thank you

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1 Solution
Xiangrui
Moderator
Moderator
Moderator
500 replies posted 250 solutions authored 50 likes received

Hi Sako,

This driver can be used in this way and shunt can also be placed on high side.

BR,

Xiangrui

View solution in original post

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3 Replies
Xiangrui
Moderator
Moderator
Moderator
500 replies posted 250 solutions authored 50 likes received

Hi SaKo,

As I said, it's better to show a schematic for analyze. If you mean the circuit as shown below. It can work for bi-directional current flow.

352_340_1.5.png

However, you have to control the low side MOSFET with external circuit. And you have to keep the charge voltage and battery voltage in a suit range.

BR,

Xiangrui

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SaKo
Level 1
Level 1
First reply posted First question asked Welcome!

I mean the below:

SaKo_0-1673433142255.png

 

Also on common source configuration, could the shunt be on high side?

 

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Xiangrui
Moderator
Moderator
Moderator
500 replies posted 250 solutions authored 50 likes received

Hi Sako,

This driver can be used in this way and shunt can also be placed on high side.

BR,

Xiangrui

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