TPSM84824: Difference between TPSM84824 and TPSM84624

Hi Itoh,

The TPSM84824 and TPSM84624 use the same IC and also have the same 0.85uH integrated inductor. The main difference is the integrated current limiting resistor differs between the two parts. As you mentioned, the TPSM84824 will support 8A of current where the TPSM84624 can support 6A of current and will enter overcurrent protection below 8A.

Regards,

Alec Biesterfeld

Hi Alec,

I understand TPSM84824 and TPSM84624 use same IC (TPS54824) and inductor. (Please check your typo of the part number.)

But I wonder the current limit difference of TPSM84824 and TPSM84624.

The IC on the module is TPS54824, which doesn't have external resistor to adjust the current limit level.

Could you please double check? Or, does it have different current limit resistor inside IC (TPS54824)?

Regards,

Itoh

Hi Itoh,

That is my mistake. I assumed the device integrated current limiting resistors, but I referenced the project documentation, and the internal current limit setting (programmable to the device at final test) is modified between the TPSM84824 and the TPSM84624.

Regards,

Alec Biesterfeld

Hi Alec-san,

OK. But from the datasheet, both TPSM84824 and TPSM84624 have same 11A overcurrent threshold.

What current limit is different exactly?

Regards,

Itoh

Hi Itoh-san,

During the development of the project there was an effort to adjust the overcurrent protection setting of the part. I consulted the design engineer who had indicated the final decision was made to have a datasheet spin. Both parts are the same, but the datasheets are different to allow for better filtering on behalf of the customer/field engineers.

Sincerely,

Alec Biesterfeld

Hi Alec-san,

I understand that both parts are basically same including overcurrent threshold even though there was an effort to adjust the overcurrent threshold.

The difference is just only guaranteed rated current level (8A or 6A), correct?

Please kindly correct me if I'm wrong.

Regards,

Itoh