ULN2803A: What is the MPN to direct replace ULN2803AN ?

weiji jiang

Expert 2040 points

Part Number: ULN2803A

Hi TI Folks,

Good day to you.

From datasheet of ULN2803A (SLRS049H –FEBRUARY 1997–REVISED FEBRUARY 2017), We understand the ULN2803AN is obsolete. Please teach what is the direct replacement MPN of ULN2803A? And what is the difference between ULN2803AN and ULN2803ADW ?

Best regards

Jiang WeiJi

over 8 years ago

0 Aleksandras_Kaknevicius over 8 years ago

TI__Genius 15780 points

Hi Jiang,

The recommended alternative device is listed as the TPL7407LA on ti.com, but the ULN2003A would also work. These are 7 channel devices instead of 8 channel devices.

That being said, if you need an 8 channel device then the ULN2803ADW is still available, and this device should work the same way.

Thanks,

Alek Kaknevicius

0 weiji jiang over 8 years ago in reply to Aleksandras_Kaknevicius

Expert 2040 points

Hi Alek Kaknevicius,

Is it meaning that there is no pin to pin direct replacement to MPN ULN2803AN? please correct me if my understand in below is wrong:
1. The package is difference:
ULN2803AN is PDIP (18)
ULN2803ADW is SOIC (18)
TPL7407LAPW is TSSOP (16)
ULN2003AN (PDIP 16)

best regards
Jiang WeiJi

0 Aleksandras_Kaknevicius over 8 years ago in reply to weiji jiang

TI__Genius 15780 points

Hi Jiang,

That is correct, there is no P2P replacement to the device. The ULN2003AN is the closest device since it has the same functionality with one less channel.

Thanks,

Alek Kaknevicius

0 weiji jiang over 8 years ago in reply to Aleksandras_Kaknevicius

Expert 2040 points

Hi Alek Kaknevicius,

Good day to you.

Noted, thanks for your detail reply.

Best regards

Jiang weiji

Interface

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ULN2803A: What is the MPN to direct replace ULN2803AN ?