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Guide to using LMP8640/LMP8645 evaluation board

Posted: 22 Dec 2010 ?? ?Print Version ?Bookmark and Share

Keywords:National Semiconductor? LMP8640? LMP8645?

This evaluation board by National Semiconductor shows a bidirectional high side current sense made using LMP8640 (LMP8645) and optional differential amplifier in order to have a single output.

There are two banana plugs labeled GND and VCC to power the evaluation board. Moreover a banana plug labeled VCC_Amp is used to power an optional operational amplifier which makes the difference between the outputs of the two LMP8640 (LMP8645).

A voltage supply can be connected between the IN and GND banana plugs, while a load between the LOAD and GND banana plugs. The voltage applied at IN pin has not to exceed the max common mode voltage allowed by the LMP8640/HV (LMP8645/HV).

View the PDF document for more information.

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