DS2438 question

[HansF]

Hello all,

I'm not a technical noob, but no expert either, more a beginner, so bear with me.

I'm trying to find other uses for a DS2438, e.g. connecting an IR sensor. I've got a DS2438 which is recognized, but connecting a raw voltage to Vad doesn't result in a reading (apart from 0, that is). Shouldn't Vad measure raw voltages up to 12 Volts, being a smart battery monitor?

If so, are there any tests I could do to find out if my DS2438 is functioning properly? Cheers,

Hans

 

[dem5867]

No expert ,, but 2 items 1st and most important how are you triggering the VAD convert ??? I read that you need to send it a a convert command via the 1-wire buss .. next it appears the upper limit of the VAD is 10 volts it also appears to be effected by the supply voltage VDD.. 

Hope this helps

Hello all,

I'm not a technical noob, but no expert either, more a beginner, so bear with me.

I'm trying to find other uses for a DS2438, e.g. connecting an IR sensor. I've got a DS2438 which is recognized, but connecting a raw voltage to Vad doesn't result in a reading (apart from 0, that is). Shouldn't Vad measure raw voltages up to 12 Volts, being a smart battery monitor?

If so, are there any tests I could do to find out if my DS2438 is functioning properly? Cheers,

Hans