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.

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

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

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active QFN Tray 260
Availability
Active QFN Reel 3000
Availability
Active QFN Reel 1000
Availability

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL94216 Datasheet Datasheet PDF 2.04 MB
Application Notes & White Papers
Low-Side FET White Paper 简体中文 White Paper PDF 263 KB
Putting Safety into Li-ion Battery Packs 简体中文 White Paper PDF 451 KB
Entmystifizierung von Batteriemanagementsystemen White Paper PDF 441 KB
Battery Management System Tutorial 简体中文 White Paper PDF 451 KB
Other
Industrial Power Management Brochure ( R16CL0001EJ0200 ) 日本語 Brochure PDF 3.13 MB

Boards & Kits

Part Number Title Type Company
ISL94216EVKIT1Z 16-Cell Battery Front End Evaluation Kit Evaluation Renesas