NXP Semiconductors RD33771CNTREVM Reference Design Board
NXP Semiconductors RD33771CNTREVM Reference Design Board provides a solution for a centralized and distributed architecture for lithium-ion battery management in automotive applications. This board allocates four MC33771C devices controlled by one MCU, which can be bypassed and stacked to a long daisy chain for a flexible battery management system (BMS) architecture. The battery cell controllers (BCCs) communicate by TPL daisy-chain or capacitor isolation, and each BCC can measure lithium batteries having 7 to 14 cells each. NXP RD33771CNTREVM Reference Design Board features a one-channel CAN interface and JTAG debugging interface. Applications include a mixed centralized-distributed architecture BMS for eCar and eBus applications.
Features
- 4x BCCs onboard
- Each BCC can measure voltage for up to 14 battery cells with high accuracy
- Each BCC has 6-channel temperature sensing
- First BCC has current-sensing point and could connect external SHUNT resistor for current measurement
- Capacitor or TPL isolation communication onboard
- TPL isolation for off-board communication
- Cell balancing current set to 100mA, expandable up to 300mA by adding CB resistors
- Low-cost SBC and MCU as BCC management
- 1-channel CAN interface
- JTAG debugging interface
- High EMC performance, passed BCI 200mA, CE CISPR class 3
Specifications
- Analog front-end (ASIL-D)
- 4 BCC devices onboard
- Transformer/capacitor isolation between each BCC
- 14 battery cells voltage measurement at each AFE
- 7 temperature channels measurement at each AFE
- Daisy chain-link other board(s) for flexible architecture
- S32K144 microcontroller (ASIL-B) manages all AFEs onboard
- Power management
- Power supply with watchdog support
- Overvoltage/Undervoltage detection support
- Connectivity includes CAN interface, capacitor /transformer isolation-based TPL daisy chain for off-board
Kit Contents
- Battery simulation cable for each AFE module
- Low-voltage cable for the MCU module
- Twisted daisy-chain cable for connecting other possible board
- Needs external 12VDC supplier for MCU part
- Needs external 12VDC to 50VDC supplier for all AFEs
- Additional hardware
- Power supply 12VDC with 500mA current capability
- Power supply 10 to 50VDC with 500mA current capability or a 7-to-14-cell battery pack
- USB Multilink FX debug probe
Block Diagram
Typical System Configuration
Accessories
Associated Products
NXP Semiconductors MC33771 Li-ion Battery Cell Controller
14-Channel Li-ion Battery Cell Controller designed for automotive and industrial applications.
NXP Semiconductors RD33771CDSTEVB Evaluation Board
Evaluates MC33771C battery cell controller for automotive & industrial Li-ion battery applications.
Inilathala: 2020-05-06
| Na-update: 2024-12-30