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V04265
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Scalable 12v-48v high value stand-alone BMS with 90A continuous current capabilities. Equipped in supporting multiple battery chemistries with CAN and IoT BLE communication. Designed for real world battery applications:
- Material Handling
- Robotics
- Professional Cleaning
- Motive Power (off-road vehicles, urban transport and light electric vehicles)
- Renewable Power and Energy Storage
- CONTINUOUS ONBOARD LOAD 90A
- SUPPORTING MULTIPLE BATTERY CHEMISTRIES
- CAPABLE OF PARALLEL CONNECTIVITY
- FOUR EXTERNAL 10 KΩ NTC THERMISTORS
- ISOLATED CAN AND/OR BLUE TOOTH LE
- 1 EXTERNAL CONTACTOR DRIVER
- CURRENT-SENSE MEASUREMENT REDUNDANCY
- 8MBit INTERNAL FLASH
- EVENT LOGGING
- 12V 300mA OUTPUT
- HEATER DRIVER
- LED DRIVERS FOR SOC
V04265 is a high performance battery management system (BMS) rated to 90A continuous operation free air, protecting 4 to 16 cells in any chemistry. High current operation closer to 200A is possible with appropriate heatsinking (passive/active). The analog front-end (AFE), Maxim MAX14921,provides cell voltage data. 4 external 10 kΩ NTC thermistors are also monitored. This data is fed to the on-board microcontroller (MCU) for processing, and is communicated to the host via CAN and/or Bluetooth. Passive cell balancing operates when charging, provided that all cell voltages are above the Cell Balancing Activation Voltage.
The MCU controls a high performance array of N-channel high-side discharge and charge MOSFET’s according to the parametric data. Short circuit protection is provided for by a discrete circuit (during discharge only) as well as by software (redundant system). Fuel gauging is provided by a TI BQ34Z100 device, which is a Coulometric counter employing TI’s Impedance TrackTM technology, thereby eliminating in-service calibration.
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