EV2793-000x-FP-00B

The EV2793-0000/0002-FP-00B is an evaluation board designed to demonstrate the capabilities of the MP2793, a robust battery management device. The MP2793 provides a complete solution that can monitor the analog front-end (AFE) and provide protection. It is designed for battery systems with 4 cells to 16 cells in series. The MP2793DFP-0000 supports I²C communication. The MP2797DFP-0002 supports serial peripheral interface (SPI) communication.

The MP2793 supports connections for 4-cell to 16-cell series battery packs, with an absolute voltage exceeding 80V on particular pins.

The MP2793 integrates two separate analog-to-digital converters (ADCs). The first ADC measures each channel’s differential cell voltage (up to 16 channels), die temperature, and 4 channel temperatures via the external negative temperature coefficient (NTC) thermistors. The second ADC measures the charge and discharge current via an external current-sense resistor. The dual ADC architecture enables synchronous voltage and current measurements for cell and pack impedance monitoring.

The MP2793 includes high-side MOSFET (HS-FET) drivers for independent charge (CHG) and discharge (DSG) control.

The 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 DSG MOSFET driver also incorporates protections such as discharge over-current (DOC), short-circuit, battery under-voltage (UV), over-temperature (OT), and under-temperature (UT).

The CHG MOSFET drivers incorporate protections such as charging over-current (COC), short-circuit, battery over-voltage (OV), OT, and UT. All of these protections have configurable thresholds.

Internal passive balancing MOSFETs can be used to equalize mismatched cells, supporting up to 58mA. The MP2793 provides the option to drive external balancing transistors (BJTs).

The MP2793 has an optimized baseline current consumption that depends on the operating mode. It is available in a TQFP-48 (7mmx7mm) package.