Low-voltage battery system

Products and reference designs

Low-voltage battery system

Block diagram

Overview

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

Design requirements

  • Voltage and temperature measurement on cell level with high resolution.
  • Accurate and timely current sense on pack level.
  • Diagnostics and functional safety mechanisms including overcurrent detection and battery disconnect.
  • Digital and power isolation in case of different voltage domains are present.

Block diagram

Find products and reference designs for your system.

Low-voltage battery system

Pyrofuse Pyrofuse UART/SPI UART/SPI LINK+ LINK+ PACK- PACK- PACK+ PACK+ Contactor Contactor Pre-charge Pre-charge SPI SPI Contactor Contactor Non-isolated power supply Non-isolated power supply DC/DC DC/DC Environment sensing Environment sensing Temperature sensor Temperature sensor Humidity sensor Humidity sensor GPIO/I2C/SPI GPIO/I2C/SPI System basis chip (SBC) System basis chip (SBC) DC-DC converter DC-DC converter Watchdog Watchdog PMIC PMIC SVS SVS Communication interface Communication interface CAN / LIN transceiver CAN / LINtransceiver Ethernet transceiver Ethernettransceiver ESD protection ESD protection Safety interlock Safety interlock Interlock Interlock Current sense resistor Current sense resistor LINK- LINK- Current sense resistor Current sense resistor Current sense Current sense INA INA Disconnect & breaker control Disconnect & breaker control Pyrofuse driver Pyrofuse driver Contactor driver Contactor driver Solid-state switch driver Solid-state switch driver Smart fuse Smart fuse Cell supervision Cell supervision Battery monitor & balancer Battery monitor & balancer Cell sense & balance Cell sense & balance Battery monitor & balancer Battery monitor & balancer Battery system controller Battery system controller Safety microcontroller Safety microcontroller Digital signal isolation Digital signal isolation Digital isolator Digital isolator Isolated power supply Isolated power supply DC/DC DC/DC Power selection Power selection OR-ing OR-ing Input protection Inputprotection

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