TPS2597EVM: TPS2597EVM

Ali Khan

Part Number: TPS2597EVM
Other Parts Discussed in Thread: TPS25200, TPS25947

Hi,

I just want to understand what are the meaning of these parameters while choosing resistance.

Also, is there any e fuse available which can provide me following functions.

OVER VOLTAGE PROTECTION (adjustable)
OVER CURRENT PROTECTION(adjustable)
REVERSE POLAIRTY PROTECTION

i am using TPS25970ARPWR right now but its minimum voltage is 2.7V while the system that i need to protect have following parameters.

Input voltage (2 x AAA batteries connected in series) i.e. 3V to 3.44

Input Current = 2100mAh

The minimum voltage should be at least 2.4V or less if possible.

Thanks

over 3 years ago

0 Kunal Goel over 3 years ago

TI__Guru* 79181 points

Hi Ali,

Please refer this https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1082314/faq-tps25947-understanding-common-terminologies-used-in-efuse-datasheet?tisearch=e2e-sitesearch&keymatch=explaining%20terminologies%20used#

for understanding UV and OV thresholds.

We don't have eFuse with 2.4V voltage support. TPS25200 is there with 2.5V voltage support.

TPS25947 part has OV,OV IRPP protection.

Regards

Kunal Goel

0 Ali Khan over 3 years ago in reply to Kunal Goel

Expert 1150 points

The TPS25947 will not work because its minimum voltage is 2.7V same as TPS25970ARPWR. I am confused that why you suggested me this IC while i am already facing issue by using TPS25970ARPWR about minimum voltages.

Now about TPS25200,
How i can setup OVLO to 3.5V and OCP to 1A>

...

Thanks

0 Kunal Goel over 3 years ago in reply to Ali Khan

TI__Guru* 79181 points

I suggested TPS25947 because it has input reverse polarity protection which was your requirement.

TPS25200 will also not work because OVLO is fixed and not configurable.

Unfortunately we do not have eFuse that can solve all your requirements.

Regards

Kunal Goel

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TPS2597EVM: TPS2597EVM