CSD95490Q5MC: CSD95490Q5MC

Jakub Ciurus

Part Number: CSD95490Q5MC
Other Parts Discussed in Thread: CSD95480RWJ

Hello
In datasheet there is no extra information about relation between output current and voltage on pin IOUT, there's only information about that it's proportional to the phase current. Could someone give mi information about a equation to callculate Iout voltage vs output current?

over 2 years ago

0 Qingquan Tang over 2 years ago

TI__Expert 3525 points

Hi,

the voltage between IOUT and REFIN pins (V_IOUT-V_REFIN) is proportional to phase current typically 5mV/A.

For more information, it requires NDA to share. Please contact if you already have NDA or if you want to set up.

0 Jakub Ciurus over 2 years ago in reply to Qingquan Tang

Prodigy 10 points

Thanks, and how is it with TAO output?

0 Qingquan Tang over 2 years ago in reply to Jakub Ciurus

TI__Expert 3525 points

Its typ 8mV/degC output to GND.

0 Jakub Ciurus over 2 years ago in reply to Qingquan Tang

Prodigy 10 points

For CSD95480RWJ it's should be the same?

0 Qingquan Tang over 2 years ago in reply to Jakub Ciurus

TI__Expert 3525 points

CSD95480 has different package and different current rating, but for IOUT/TAO it is very similar to CSD95490.

0 Jakub Ciurus over 2 years ago in reply to Qingquan Tang

Prodigy 10 points

And what's the reference volatage for this pin?

0 Jakub Ciurus over 2 years ago in reply to Jakub Ciurus

Prodigy 10 points

With my calculations it seems like te reference voltage is 0,6V

0 Qingquan Tang over 2 years ago in reply to Jakub Ciurus

TI__Expert 3525 points

Could you clarify which pin were you referring to?

0 Jakub Ciurus over 2 years ago in reply to Qingquan Tang

Prodigy 10 points

I mean, I measured this TAO output for few temperatures and it doesn't seem to be directly 8mV/deg with no additional voltage reference

	measured V	calculated V
temperature (deg. C)	Voltage (V)	(8mV/degC)
29	0,8234	0,232
30,5	0,8322	0,244
31,4	0,839	0,2512
32,2	0,8457	0,2576
33,4	0,853	0,2672
34,2	0,864	0,2736

+1 Qingquan Tang over 2 years ago in reply to Jakub Ciurus

TI__Expert 3525 points

Hi, It is about 0.8V at 25degC.

I would suggest to set up NDA with TI then you can get access to the full datasheet. Those are all documented in the datasheet.

0 Jakub Ciurus over 2 years ago in reply to Qingquan Tang

Prodigy 10 points

Ok, please
jakub.ciurus@mpowertech.com.pl

+1 Qingquan Tang over 2 years ago in reply to Jakub Ciurus

TI__Expert 3525 points

I already sent email and copied you. I will close this topic here and take it offline.

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CSD95490Q5MC: CSD95490Q5MC