DEMOIMRBMSPWRV1TOBO1

DEMOIMRBMSPWRV1TOBO1 is a demo board for BMS power, utilized in Infineon Mobile Robot (IMR). This 44.4V nominal voltage demo board, with a voltage range between 30V and 50.4V and a charging and discharging rate of 1 C & 5 C, is delivered in a modular design by combining the DEMO_IMR_BMSPWR_V1 power board and the DEMO_IMR_BMSCTRL_V1 controller board, with the required software. The IMR uses two modular BMS solutions, supporting hot-swapping of the batteries, meaning that the robot never has to be powered off. The proposed design is intended to be used for mobile robotic application such as AGV or AMR. With its modular design approach, it can be utilized also in other battery powered applications. For the board to operate accordingly, a control board like DEMO_IMR_BMSCTRL_V1 is required and can be hooked up via pin headers. Furthermore 12 Li-ion batteries in the form factor 18650 are needed and should be inserted into the battery holders making sure the polarity is correct.

• Overvoltage or undervoltage of a cell
• External NTC resistance measures faults
• Open load diagnostics error monitoring
• Balances over- and undercurrent errors
• ADC cross-check error, internal overtemperature detected, register CRC check fault detected
• Internal IC error, secondary ADC
• Monitoring of 12 battery cells in series
• Dedicated 16bit delta-sigma ADC, integrated stress sensor, integrated balancing switch
• High-accuracy measurement for SoC & SoH, 5 temperature measurement channels
• Differential serial 2Mbit/s interface, four additional GPIO pins, internal round-robin cycle routine