Power management

Power management forum

State Resolved
Locked Locked
Replies 4 replies
Subscribers 63 subscribers
Views 103 views
Users 0 members are here

Support feedback

Options

Options

Similar topics

LM5067: Threshold voltage of Current Limit/Breaker

Francis Jiang

Intellectual 1440 points

Part Number: LM5067
Other Parts Discussed in Thread: TPS23521

Hi Team,

Do we have a device that have lower threshold voltage of Current Limit/Breaker than LM5067? Customer uses 0.2-0.5mohm shunt and load current is about 70A, 50mV threshold voltage is too big. Or do you have smart design can solve this issue? Thanks a lot.

BRs,

Francis

0 Avishek Pal 11 months ago

TI__Mastermind 30905 points

Hi Francis,

We don't have lower threshold voltage of Current Limit/Breaker than LM5067. Please adjust the value of RSNS using the design calculator.

https://www.ti.com/lit/zip/snvu088

May I know the specific reason of using 0.2-0.5mohm shunt? Why can't it be changed?

0 Francis Jiang 11 months ago in reply to Avishek Pal

TI__Intellectual 1440 points

Hi Pal,

Because of efficiency and heat. Customer would like to first consider whether can solve this issue on device side.

BRs,

Francis

+1 Avishek Pal 11 months ago in reply to Francis Jiang

TI__Mastermind 30905 points

Hi Francis,

Please see if TPS23521 solve the purpose.

Please click on "This resolved my issue" if this post answers your query.

0 Francis Jiang 11 months ago in reply to Avishek Pal

TI__Intellectual 1440 points

Hi Avishek,

Customer is designing schematic now, I would like to follow this case with you offline. Thanks. No problem here.