Current measurement

[Gad_usr1]

Hi, how can we measure current of battery pack using RD33771CDSTEVB and BATT14C emulator.  Where should we connect the shunt resistor and in which channel in BATT 14c emulator is the current measurement done. Kindly clarify.

[Gad_usr1]

Thank you. Is there any limit on the current sense for this board? For example can it support a battery pack of 48V, 200Ah

[ErikaC]

Hello,

For this RD33771CDSTEVB,the shunt current detection pins are connected with ground.

So, I think you can refer to FRDM33771CSPEVB 

Regards.

[Gad_usr1]

We are using this along with MPC5775B-EVB as part of the MPC5775B and MC33771 high-voltage BMS Evaluation System. MPC57775B-EVB supports only TPL.  Is there any other board of MC33771C which has TPL and current sensing both enabled. I believe  FRDM33771CSPEVB supports only SPI.

[ErikaC · Accepted solution]

Hello

So for your desired two function I think you can refer to EVB -RD33771-48VEVM.

RD33771-48VEVM Reference Design | NXP Semiconductors