NXP Semiconductors EVBMA7518S48V BMS Evaluation Board

NXP Semiconductors EVBMA7518S48V BMS Evaluation Board provides a complete solution for a 48V battery management system (BMS) in automotive and industrial applications. The board integrates one BMA7518 device controlled by an S32K312 microcontroller (MCU). The BMA7518 supports measurement of lithium-ion batteries with four to 18 cells.

The NXP Semiconductors BMA7518 communicates with the MCU via a non-isolated serial peripheral interface (SPI), while off-board communication uses the transformer physical layer (TPL) for transformer isolation. The MCU is powered by an FS27 system-based chip (SBC), supplied directly from a 48V_DC source.

The board also integrates a MOSFET driver for charge/discharge control and a redundant current-measurement channel for timely overcurrent (OC) protection, enhancing overall functional safety performance.

Features

Core capabilities
- 48V BMS architecture
- One BMA7518 device on one board that
  - Measures voltage for up to 18 battery cells with high accuracy
  - Supports 10-channel temperature sensing
- Cell balancing current up to 300mA
- 48V SBC (FS27) and MCU (S32K312) implementation
- ASIL C or higher OC protection with a two-channel MOSFET driver

Connectivity
- SPI communication between BMA7518 and MCU
- Two-channel controller area network (CAN) interface for communicating with the controller or graphical user interface (GUI)
- One external universal asynchronous receiver-transmitter (UART) interface for communicating with the GUI

Applications

Automotive - Battery Management System (BMS)
Consumer - Robotic appliances
Industrial - Energy Storage System (ESS)

Kit Contents

EVBMA7518S48V reference design board
One battery simulation cable with a cell simulation board and power supply for BCC, which simulates each cell using series resistors

One communication cable that supports CAN communication and an external charger monitor
One USB Type-C^® to USB cable to communicate with the controller PC