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ADN8834

Question asked by Cony on Nov 7, 2017
Latest reply on Nov 16, 2017 by ytu

I have a question on the Vout2. What  is the voltage on  Vout2 when the object temperature equals to the target temperature? It is described on Page 19 on the Datasheet.

Vout2 = Vtempset - (Z2/Z1)(Vout1 - Vtempset)

When the object temperature equals to the target temperature, Vout1 = Vtempset, so the Vout2 ought to be Vtempset, but in my design it becomes to ZERO, Then TEC starts cooling the object after the object temperature below target temperature,Vout2 = 5V TEC starts heating.  Is the phenomenon right? How can I decrease the swing range of Vout1?

Thank you.

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