LM5113: LMG1205 vs LM5113-Q1

Pawel Piwowarski87949

Part Number: LM5113
Other Parts Discussed in Thread: , LMG1205

Hi,
we are looking for a replacement for LM5113 that is NRND.
There is a LM5113-Q1 that from the datasheet looks almost identical as LM5113, has the same footprint
and pinout and it is active (not NRND).
What are the reasons that TI suggests LMG1205 as eplacement of LM5113, instead of LM5113-Q1 ?

Regards, Pawel

over 6 years ago

0 Don Dapkus over 6 years ago

TI__Guru**** 189399 points

Hi Pawel,

Please see this thread: e2e.ti.com/.../2331141

Let me know if this doesn't answer your question. If it does, please press the green button for me!

0 Pawel Piwowarski87949 over 6 years ago in reply to Don Dapkus

Intellectual 795 points

Hi Don,
the thread seems to relate to some bug in LM5113, the question is if the same bug is in LM5113-Q1 ?
If not then LM5113-Q1 would seem to be a closer-relative replacement unless there is sth else that speaks nevertheless for LMG1205 ?

Regards, Pawel

0 Don Dapkus over 6 years ago in reply to Pawel Piwowarski87949

TI__Guru**** 189399 points

Hi Pawel,

Yes, this bug also exists in LM5113-Q1. It was fixed in LMG1205, that's why we prefer customers switch to it if possible.

0 Jeffrey Mueller over 6 years ago in reply to Don Dapkus

TI__Genius 12990 points

Hi Pawel,

do you require Q1 half bridge driver?
what is your application?
1205 has improved performance - however similar performance can be achieved with 5113-Q1 if simple workarounds for the bugs are implemented with some external components and applying VDD before VIN. let me know if this is something your interested in going over.

Thanks,

Power management

Power management forum

LM5113: LMG1205 vs LM5113-Q1