BQ25731: Model of the BMS IC required

Uzair Amin

Part Number: BQ25731

I have designed a schematic of Battery Management System and I want to simulate it before prototyping and PCB design because I can't take risk in it. the IC I'm using for it is BQ25731RSN and I couldn't find spice model for it on web. My Questions are:

How can I model this IC on spice software using datasheet?
If modelling IC is not possible, then how can I approximate it's behavior on SPICE
Also, I saw on Battery Management Studio, This IC is not available on that software. Is there any similar IC to it which is available on the BM Studio?

Suggest me any document, application note or a advice to model that behavior. I'll be very thankful to you.
Thanks,

over 2 years ago

+1 Tiger Zhou over 2 years ago

TI__Mastermind 18685 points

I am new to device modeling. Not sure how to model this device. Instead, Suggest you ordering an evaluation kit, which is more accurate than simulation. The BQZ file is below.

https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/999085/bq25730evm-bqz-file

0 Uzair Amin over 2 years ago in reply to Tiger Zhou

Prodigy 50 points

Thank you so much!
This will help but can you mention/call someone here who is expert in modelling.

+1 Tiger Zhou over 2 years ago in reply to Uzair Amin

TI__Mastermind 18685 points

A battery charger has multiple control loops and the battery could be a source or a load. Due to the complexity of the charger loop compensation, input adaptor vs. battery and the control loop interactions, the simulation does not simulate the behavior well. We don't support the spice type simulation for battery chargers, but we will continue to provide the best support to application related issues.

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BQ25731: Model of the BMS IC required