TPS25944A: R(ILIM) formula is wrong?

Hisao Uchikoshi

Genius 13880 points

Part Number: TPS25944A

Hi Experts,

There are formulas to calculate R(ILIM) in (4) on page 23 and (10) on page 30 as below.

Each formulas use as ‘89’ for denominator. I think it should be ’87’ because V(ILIM) is defined as 0.87V.

Could you please confirm it?

Regards,

Uchikoshi

0 Kunal Goel 9 months ago

Hi Uchikosi

Thanks for reaching out. I will get back by tomorrow EOD on this.

Regards

Kunal Goel

0 Kunal Goel 9 months ago in reply to Kunal Goel

Hi Hisao,

That formula is derived by curve fitting from bench data of ILIM values .We can use this as typical formula.

Regards

Kunal Goel

0 Hisao Uchikoshi 9 months ago in reply to Kunal Goel

Hi Kunal,

Understood. Which 87 or 89 do you recommend?

Regards,

Uchikoshi

+1 Kunal Goel 9 months ago in reply to Hisao Uchikoshi

Hi Hisao,

I recommend following datasheet formula of 89.

Regards

Kunal Goel

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