UCC28C45: Part marking difference: UCC28C45DCK, UCC28C45DCKR

Marne Adrian

Prodigy 20 points

Part Number: UCC28C45

Tool/software:

Hello,

Can you help me with the difference between part marking

UCC28C45DCK - Marking 28C45

UCC28C45DCKR- Marking (28C45, 2C45)

This 2 MPN's are the same part but with different part marking?

over 1 year ago

0 Clemens Ladisch over 1 year ago

Guru 317260 points

The "R" means that the chips are packaged on a large reel; this makes no difference for the chips themselves.

Chips with the marking "28C45" could have been sold as UCC28C45DCK or UCC28C45DCKR.
Chips with the marking "2C45" are sold as UCC28C45DCKR.

And the OPN UCC28C45DCK is obsolete.

0 Marne Adrian over 1 year ago in reply to Clemens Ladisch

Prodigy 20 points

I'm sorry for the confusion that I created.

For PN UCC28C45DCKR we have 2 markings available.

28C45 and 2C45

What is the difference between the 2 markings? What does "8" in 28C45 mean?

0 Steven Mappus1 over 1 year ago in reply to Marne Adrian

TI__Mastermind 33115 points

"Chips with the marking "28C45" could have been sold as UCC28C45DCK or UCC28C45DCKR.
Chips with the marking "2C45" are sold as UCC28C45DCKR."

+1 Clemens Ladisch over 1 year ago in reply to Marne Adrian

Guru 317260 points

There are multiple manufacturing sites for this device, and I guess they use different markings for some reason. But for practical purposes, the "8" has no meaning.

0 Steven Mappus1 over 1 year ago in reply to Clemens Ladisch

TI__Mastermind 33115 points

The "8" is part of the original Unitrode IC part numbering nomenclature that carries brand recognition in the market.

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UCC28C45: Part marking difference: UCC28C45DCK, UCC28C45DCKR