TPS2552: Issue with Spice model

Alen Barisic

Part Number: TPS2552
Other Parts Discussed in Thread: TPS2553,

Hi,

there seems to be an issue with the spice models for TPS2552 and TPS2553 available as a download on the product folder.

- The TPS2552 does not react to the EN_B pin and is permanently switched on.
- The TPS2553 behaves as if it had an EN_B instead of the EN pin (switches on when EN = 0)

Could you please check and provide feedback?

Thanks,
Alen

over 2 years ago

+1 Ziv Zhang over 2 years ago

TI__Mastermind 18031 points

Hi Alen,

I download the PSPICE model of TPS2552 and it works normally. As EN_B pulled up, the IC disabled.

Please double check.

For TI's policy, I will first click resolved button.

If you have any other concern, contact me any time.

If you think resolved, please help click 'Issue is solved button'.

Thanks.

0 Alen Barisic over 2 years ago in reply to Ziv Zhang

TI__Intellectual 1300 points

Hi Ziv,

thanks for checking.

If the model is correct, maybe there is something wrong with the circuit that drives the pins.

Could you take a quick look on the LTspice files attached?

Thanks,

Alen

Simulation_TPS2552_3.rar

0 Ziv Zhang over 2 years ago in reply to Alen Barisic

TI__Mastermind 18031 points

Hi Alen,

Where do you get the lib file?

You can download it from ti.com.

For TI's policy, I will first click resolved button.

If you have any other concern, contact me any time.

If you think resolved, please help click 'Issue is solved button'.

Thanks.

0 Alen Barisic over 2 years ago in reply to Ziv Zhang

TI__Intellectual 1300 points

Hi Ziv,

the used lib file is the one from ti.com. Could there be a compatibility issue with ltspice?

Thanks,

Alen

0 Ziv Zhang over 2 years ago in reply to Alen Barisic

TI__Mastermind 18031 points

Hi Alen,

Please download at below link.

https://www.ti.com/product/TPS2552?keyMatch=TPS2552&tisearch=search-everything&usecase=GPN#design-development

I open it by cadence/capture CIS.

For TI's policy, I will first click resolved button.

If you have any other concern, contact me any time.

If you think resolved, please help click 'Issue is solved button'.

Thanks.

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TPS2552: Issue with Spice model