LM2903B: Output behavior due to PCN.

Kengo.Y

Part Number: LM2903B
Other Parts Discussed in Thread: LM339B

Hi team,

According to the application note, it seems that CFAB has been added to LM2903B and LM339B.
www.ti.com/.../snoaa35f.pdf
Could you please send me the PCN (Product Change Notification) for this?

BR,
Kengo.

5 months ago

0 Ron Michallick 5 months ago

TI__Guru**** 173716 points

Hello Kengo,

Here is one, https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/5488/PCN20230627002.1.pdf

Other distributors should have this online, too.

0 Kengo.Y 5 months ago in reply to Ron Michallick

Guru 11495 points

Hi Ron,

Thank you for your reply.

According to the PCN, it seems that LM2903BIDR is not subject to process changes.
Is my understanding incorrect?

+1 Ron Michallick 5 months ago in reply to Kengo.Y

TI__Guru**** 173716 points

Kengo,

LM2903B did have a process and minor schematic change. JI3 and TIB are different processes. Output low or high during VCM violation is a schematic effect. Perhaps LM2903BIDR is listed on a different PCN. I'll look for that tomorrow.

+1 Paul Grohe 5 months ago in reply to Kengo.Y

TI__Guru 68006 points

Hi Kengo,

The latest change is covered in PCN# 20251009001.1

This is for the CFAB to RFAB fab/process change and the slight design change (clamp).

Product Change Notification 2026-1-15 (PDF)

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LM2903B: Output behavior due to PCN.