EV2797-000x-FP-00B

The EV2797-0000-FP-00B and EV2797-0002-FP-00B are evaluation boards designed to demonstrate the capabilities of the MP2797, a complete analog front-end (AFE) monitoring and protection IC. The MP2797 supports 7-cell to 16-cell series battery packs with outstanding voltage and current measurement accuracy and a complete set of protection features.

The MP2797 measures each cell’s voltage, while also synchronously measuring charge/discharge current and coulomb counting via an external current-sense resistor. The MP2797 includes high-side MOSFET drivers for charge and discharge control. It measures die temperature, and cell temperature via 4 NTC thermistor inputs. The MP2797 contains internal passive balancing MOSFETs capable of driving up to 58mA, and is also capable of driving external balancing transistors for higher current.

The discharge (DSG) MOSFET driver includes a configurable soft start (SS) that provides a controlled turn-on, eliminating the need for an external pre-charge circuit. The MOSFET drivers also incorporate over-current protection (OCP), short-circuit protection (SCP), battery under-voltage protection (UVP), battery over-voltage protection (OVP), and high/low-temperature protection. All of these protections have configurable thresholds.

These evaluation boards combine the MP2797 with power MOSFETs and a current-sense resistor to support up to 70A of charge/discharge current. The board also includes placeholders to add external MOSFETs for higher balancing current, if needed.

The EV2797-0000-FP-00B works with the MP2797DFP-0000 and supports I²C communication, while the EV2797-0002-FP-00B works with the MP2797DFP-0002 and supports SPI communication.