LMT84: How to distinguish two ICs?

Serhiy Belyayev

Prodigy 10 points

Part Number: LMT84

Tool/software:

I found that two different ICs in the same package has the same marking: LMT84DCKR and TPS71730DCKR.

https://www.ti.com/packaging/en/docs/partlookup.tsp?partmarking=BNA

My question is simple: how to distinguish them?

Serhiy.

over 1 year ago

+1 Simon Rojas Avila over 1 year ago

TI__Expert 7170 points

Hi Serhiy,

The LMT84DCKR will have a dot on the topside which denotes pin 1, while TPS71730DCKR will have a pin 1 stripe. These 2 markings will be visibly distinct on the topside of the devices.

Best regards,

Simon Rojas

+1 Serhiy Belyayev over 1 year ago in reply to Simon Rojas Avila

Prodigy 10 points

Thank you very much!

(But it's a pity that TI doesn't mention this in UMs officially.)

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LMT84: How to distinguish two ICs?