TL431LI: TL431LI vs TL431 improvments?

AnBer

Part Number: TL431LI
Other Parts Discussed in Thread: TL431

Team,

Could you please detail the improvements that have been made in the new TL431LI?
The TI.COM table does show some TL431LI vs TL431 differences but there are no specific list of improvement
http://www.ti.com/assets/js/compareParts/compare.html?familyId=697&parts=TL431LI,TL431&cols=o1,p2519,p232,p536min,p536max,p2352max,p241max,p1498,p1192,p231min,p390max,p2954,p1130,p3142typ,p1811,p241typ,p3292,p3293,o4&lang=en

For which use case do those improvement bring an advantage?

Also what are the plans for additional package?

Thanks in advance,

over 4 years ago

0 Marcoo Z over 4 years ago

TI__Mastermind 19370 points

Hi AnBer,

The comparison table you have linked does not show the full benefits of TL431LI vs TL431. In general the TL431LI offers higher accuracy over temperature and improved system accuracy due to a lower Iref.

The app note below does a more detailed job in explaining them. this app note will be updated in the coming weeks to have more detailed explanations.

"Designing with the Improved TL431LI (SNOAA00)"

Power management

Power management forum

TL431LI: TL431LI vs TL431 improvments?