I see that the TPS61093 UVLO is triggered at 1.55V. However, this boost converter has a threshold of 2.6V. Is 1.55V a bit too low for lipo? If so, how come the TPS61093 is designed this way?
Thanks
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Yes, 1.55V is way too low for Li-Ion/LiPo. 2.6V is already on the very edge.
It has 1.55V UVLO because it works correctly down to 1.6V.
Not every single device in the world is designed to work with Li-Ion and only Li-Ion. If a converter says you could use a battery type that doesn't mean it will also suddenly do everything that the battery needs in ways of protection.
The main difference here is the presence of a PCB with many components vs just a chip.
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\$\begingroup\$ Right. On the other hand, is the 1.1A peak overcurrent protection reasonable for lipo though? \$\endgroup\$– KarCommented Jul 11, 2015 at 11:14
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\$\begingroup\$ @Kar For a 1.1Ah LiPo? For a 100mAh LiPo? \$\endgroup\$– AsmyldofCommented Jul 11, 2015 at 12:54
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\$\begingroup\$ For a 18650. All 18650 can comfortably output 1100mA, right? \$\endgroup\$– KarCommented Jul 11, 2015 at 13:06
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\$\begingroup\$ @Kar Should be, if they are properly manufactured by a reliable source. If they are $1 cells you may get lucky or very unlucky in that respect. \$\endgroup\$– AsmyldofCommented Jul 11, 2015 at 20:29