KA49517A/522A is a high accuracy battery monitoring IC (BMIC) with a protection function suitable for industrial applications. It has many BMS functions integrated into one chip, making system design simple and easy. Pin-to-pin compatible series also enables a flexible and scalable design. Combined with the high performance, high speed, and low power NuMicro® M483 CAN MCU. This solution achieved a highly reliable and safe BMS system.

• Features
  

  -	Up to 17 cells (KA49517A) or 22 cells (KA49522A) high accuracy voltage measurement
  -	High and low speed current measurement for Coulomb counting and system protection
  -	Charge and discharge switch control
  -	Over and under cell voltage detection
  -	Over current and short circuit protection
  -	Support both external and internal passive cell balancing function

• BMIC/ MCU Specifications
  

  Battery monitoring IC (KA49517A/522A)
  -	High resolution ADC (14bits)
  -	Up to 5 temperature measurement channels
  -	16 bits high/low speed current measurement
  -	Built-in High side FET driver (CHG/ DIS control)
  NuMicro M483 CAN MCU
  -	Up to 192 MHz operating frequency
  -	Low voltage operation (1.8V to 3.6V)
  -	Deep power down current: 0.35 µA (typ)
  -	Temperature range: - 40 ℃ to 105 ℃

• System Block Diagram