ISL94216

16-Cell Battery Front End

Product Status: Mass Production

OVERVIEW

The ISL94216 is a 16-cell Battery Front End (BFE) IC, an essential component of any Battery Management System (BMS), which periodically scans battery status and the operating environment to optimize battery life and prevent catastrophic failures.

A differential multiplexer and 16-bit ADC allows for accurate monitoring of cell voltage, temperature, and load current for management of the overall state of the battery pack.

The ISL94216 supports I2C, SPI, and Single Wire protocols allowing customers to connect an MCU in a proprietary battery management solution.

Low current consumption with an average IDLE mode current of 200µA and a SHIP mode current of less than 18µA maximizes the storage and discharge life of a battery pack.

The ISL94216 features internal cell balancing circuitry that provides 8mA of balance current per cell. External cell balancing for higher currents is also supported.

This 16-cell high voltage BFE IC is offered in an efficient 64 Ld QFN package with a thermal pad.

KEY FEATURES

  • High hot plug rating: 62V
  • VCELL accuracy: ±5mV
  • IPACK accuracy: ±0.2%
  • 16-bit VCELL and IPACK measurements
  • Charge/Load wakeup detection circuitry 
  • 4-pin GPIO port
  • Integrated 3.3V regulator
  • Supports I2C, SPI, and Single Wire communications
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    APPLICATIONS

  • Light electric vehicles such as e-bikes, e-scooters, and e-motorcycles
  • Cordless power and gardening tools
  • Home appliances
  • 24V, 36V, 42V, and 48V portable battery packs
  • Telecom and server farms
  • Solar farms
  • Energy storage systems

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL94216
Basic Information
生产状态
Mass Production
#串联电池
4 to 16 Cells
通信接口
I2C, SPI, and Single Wire
实施
Pack
电量平衡
Internal and External
电池组电压
12V to 55V
绝对电池电压测量精度
±10mV Max (0°C to 60°C)
集成充电/放电FET驱动
Yes
集成电流感应/检测
Yes
集成温度检测
Yes
IS (最大值)
820 µA (Typ, active SCAN)
SHDN ICC
(typ) 5 µA
集成调节器输出/基准输出
3.3V / 2.5V
特殊功能
*High hot plug rating: 62V, Low Side Current Sense, Supports High Side and Low Side Power FETs
封装
64Ld QFN (9x9mm)
资质级别
Standard
采样
YES
温度范围
-40 to +85

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