2. Get Hardware
2.1 Board Features
- Scalability: high-voltage BMS chipset solutions for a wide range of applications to reduce development cost and
enable faster time to market
- Safety: high system safety capability ensures proper operation of the battery at all times, protecting the
- Precision: precise and synchronized measurements enable to leverage the full potential of the battery thus
maximizing driving range
- Enablement: for each of the boards included in the enablement kit, hardware schematics, PCB layouts and Gerber
files will be available on the NXP website for download (NDA required) and a system software development suite
2.2 Bundle Description
The RD-HVBMSCT800BUN is an ETPL-based high-voltage battery management system (HVBMS) reference design bundle for 800 V applications. This bundle has been designed for evaluation and development purposes. The RD-HVBMSCT800BUN is composed of a hardware kit and several software packages.
2.3 Bundle Components
Battery Management Unit
The battery management unit (BMU) is the control part of the battery management system (BMS). The BMU processes the data, makes decisions, and commands the system.
The RD-K358BMU is the HVBMS reference design BMU for 800 V applications. This BMU kit includes a power supply and three cables to interface with other parts of the HVBMS.
Cell Monitoring Unit
The CMU is the cell-sensing part of the BMS. The CMU precisely monitors cell voltages and environmental temperatures to ensure safe battery operation. The CMU also enables fast cell-balancing.
The RD33774CNT3EVB is the HVBMS reference design CMU for ETPL-based architectures based on the MC33774A battery cell controller. This CMU kit includes four cables to interface with other parts of the HVBMS.
Battery Junction Box
The battery junction box (BJB) is the pack-level sensing part of the BMS. The BJB measures high voltages. This measurement allows monitoring connections of the contactors to the inverter and the charger. The BJB also precisely measures the system’s current, and monitors the battery to chassis isolation.
The RD772BJBTPL8EVB is the 800 V HVBMS reference design BJB for ETPL-based architectures. This BJB kit includes eleven cables to interface with other parts of the HVBMS.
To emulate cell voltages and temperatures, the RD-HVBMSCT800BUN contains a BATT-18EMULATOR battery emulator.