LM3478: The date code rule

chentsu chung

Mastermind 6180 points

Part Number: LM3478

Hi Sir,

Could you let me know how to read the date code from IC marking? Thank you.

Besr regards

C.T.

over 7 years ago

0 Youhao Xi over 7 years ago

TI__Guru* 78070 points

Let me check this with somebody to find out because I am not sure if we can share this with you. But I am sure that If you want to find out which lot a product belongs to, you can send us the marking and we can tell you.

0 chentsu chung over 7 years ago in reply to Youhao Xi

Mastermind 6180 points

Hi Youhao,

How about 71C1 & 74VN, thank you.

0 Youhao Xi over 7 years ago in reply to chentsu chung

TI__Guru* 78070 points

I got an answer from our QA and please refer to the attached document about how IC is marked. Hope this helpsHow to identify STC & LTC.PDF

0 chentsu chung over 7 years ago in reply to Youhao Xi

Mastermind 6180 points

Hi Youhao,

Thank you, but it doesn't match to the datecode of LM3478.

Colud you help to tell me what's the datecode means? And the related assembly site, thank you.

71C1
7369
74VN

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LM3478: The date code rule