current sensor issue

[bilal shareef]

hi,
I am using ACS712T ElC-30A current sensor. But i dont know why it is not working properly. According to the Datasheet at no load its output voltage should be 2.5V. But i am getting 1.88V . Can any bofy help me whats the issue ???. I am using this board

 

[FvM]

According to the Datasheet at no load its output voltage should be 2.5V.

Strictly speaking it's Vcc/2.

 

[bilal shareef]

Yes it should be 2.5 but i am getting 1.88 can you please tell me why is it so.. ??? how can i correct it ??

 

[smijesh]

Data sheet saying output voltage is VCC/2 at 25°C. But extreme temperature will leads to 9% of output voltage variation. If you apply 4.2V as VCC then you may get 1.8V as output. This is the only possibility, Otherwise you consider the devise is in fault condition and replace it.