High-voltage battery system

Products and reference designs

High-voltage battery system

Block diagram

Overview

Our integrated circuits and reference designs help you create high-voltage battery system designs that enable highly accurate monitoring of and control over the high-voltage battery stack.

Design requirements

  • Resolution of voltage and temperature measurement on cell level
  • Accurate current sense on pack level
  • Following state-of-the-art architecture regarding system redundancy in order to allow implementation of the system on the highest safety level

Block diagram

Find products and reference designs for your system.

Wired high-voltage battery system

High voltage High voltage Low voltage Low voltage Current sense Current sense PACK+ PACK+ CHARGE- CHARGE- Pyrofuse Pyrofuse 12V HV 12V HV PACK- PACK- Daisy-chain communication to CSC Daisy-chain communication to CSC SPI SPI Daisy-chain communication to BMU Daisy-chain communication to BMU Wired CSC1 Wired CSC1 Wired CSCx Wired CSCx Daisy-chain communication to BMU Daisy-chain communication to BMU Power supervision Power supervision DC/DC converter DC/DC converter Temperature sensing Temperature sensing Temperature sensor Temperature sensor Cell sense Cell sense GPIO GPIO Cell balance Cell balance SPI SPI CAN /LIN/Ethernet CAN /LIN/Ethernet 12V supply 12V supply CHARGE+ CHARGE+ LINK+ LINK+ LINK- LINK- Daisy-chain communication to CSC Daisy-chain communication to CSC Battery control unit Battery control unit BMU BMU High voltage High voltage Low voltage Low voltage BMU BMU Isolation Isolation Isolated power supply Isolated power supply Digital isolator Digital isolator Precharge controller Precharge controller Solid-state switch driver Solid-state switch driver Environment sensing & storage Environment sensing & storage Pressure & gas sensor Pressure & gas sensor EEPROM EEPROM Humidity sensor Humiditysensor Temperature sensor Temperaturesensor Safety breaker Safety breaker Profuse driver Profuse driver Precharge driver Precharge driver Solid-state switch driver Solid-state switch driver BDU controller BDU controller Pack monitor Pack monitor MCU MCU Environment sensing & storage Environment sensing & storage Temperature sensor Temperaturesensor Humidity sensor Humiditysensor Pressure & gas sensor Pressure & gas sensor EEPROM EEPROM Cell supervision Cell supervision Battery monitor & balancer Battery monitor & balancer Switch control Switch control Contactor driver (low side) Contactor driver(low side) High-side switch High-side switch Power supervision & communication Power supervision & communication DC/DC converter/ PMIC DC/DC converter/PMIC Watchdog & voltage supervisor Watchdog & voltage supervisor CAN/LIN transceiver CAN/LIN transceiver Reverse battery protection Reverse battery protection ESD components ESD components Ethernet Ethernet High-voltage sensing & isolation monitoring High-voltage sensing&isolation monitoring HV resistor divider HV resistordivider HV solid-state switch HV solid-state switch Operational amplifier Operational amplifier Isolated amplifier Isolated amplifier Isolation Isolation Isolated power supply Isolated power supply Digital isolator Digital isolator Battery system controller Battery system controller Safety microcontroller Safety microcontroller Current sense Current sense Current sense Current sense Wired interface Wired interface Daisy-chain communication bridge Daisy-chain communication bridge High-voltage interlock High-voltage interlock Constant current driver Constant current driver PWM control PWM control ESD protection ESD protection ESD components ESD components

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