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The NXP analog product development boards provide an easy-to-use platform for evaluating NXP products. The boards support a range of analog, mixed-signal and power solutions. They incorporate monolithic integrated circuits and system-in-package devices that use proven high-volume technology. NXP products offer longer battery life, a smaller form factor, reduced component counts, lower cost, and improved performance in powering state-of-the-art systems.
This page will guide you through the process of setting up and using the HVBMSCT800BUN reference design bundle.
The NXP analog product development boards provide an easy-to-use platform for evaluating NXP products. The boards support a range of analog, mixed-signal and power solutions. They incorporate monolithic integrated circuits and system-in-package devices that use proven high-volume technology. NXP products offer longer battery life, a smaller form factor, reduced component counts, lower cost, and improved performance in powering state-of-the-art systems.
This page will guide you through the process of setting up and using the HVBMSCT800BUN reference design bundle.
The RD-HVBMSCT800BUN bundle contains the following items:
Note: An HVBMS Start-up interface is available on the RD-HVBMSCT800BUN website to visualize cell voltage measurements at first startup. This interface is a GUI running on FreeMASTER (NXP Run-Time Debugging Tool) matching with a binary file that is preflashed on the BMU.
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In addition to the kit contents, the following hardware is beneficial when working with this kit.
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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.
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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.
Figure 2. RD-K358BMU Cables
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.
Figure 4. RD33774CNT3EVB Cables
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.
Figure 6. RD772BJBTPL8EVB Cables
To emulate cell voltages and temperatures, the RD-HVBMSCT800BUN contains a BATT-18EMULATOR battery emulator.
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To connect and power-up the system, complete the following steps:
J1
)J2
) and the RD33774CNT3EVB (J2_1
)J3
) and the RD33774CNT3EVB (J2_3
)J1_1
, J1_2
, and J1_3
) and the BATT-18EMULATOR (J4
, J5
, and J6
)J4
) and the RD772BJBTPL8EVB (J9
)J1
, 4-pin connector, pins 11 to 14) and the RD772BJBTPL8EVB (J12
)
J3
)J8
), ensuring the black wire is on GND, yellow is on TX, and orange is on RX.
Figure 9. USB-TTL cable Connection on RD-K358BMU
To install the development setup and start programming with the HVBMS reference design, refer to the software section of the RD-HVBMSCT800BUN website.
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In addition to our MC33774, 18 Channel Li-Ion Battery Cell Controller IC ASIL D page, you may also want to visit: