Datasheet > ISL94212

ISL94212

更新时间： 2023-12-20 18:45:23

品牌	Logo	应用领域
瑞萨 - RENESAS		电池
页数	文件大小	规格书
96页	4573K
描述
Multi-Cell Li-Ion Battery Manager

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ISL94212 数据手册

DATASHEET

ISL94212

Multi-Cell Li-Ion Battery Manager

FN7938

Rev 1.00

April 23, 2015

The ISL94212 Li-ion battery manager IC supervises up to 12

series connected cells. The part provides accurate monitoring,

cell balancing and extensive system diagnostics functions.

Three cell balancing modes are provided: Manual Balancing

mode, Timed Balancing mode and Auto Balance mode. The

Auto Balance mode terminates balancing functions when a

charge transfer value has been met.

Features

• Up to 12-cell voltage monitors, support Li-Ion CoO , Li-ion

Mn O , and Li-ion FePO4 chemistries

• Cell voltage measurement accuracy ±10mV

• 13-bit cell voltage measurement

• Pack voltage measurement accuracy ±180mV

• 14-bit pack voltage and temperature measurements

The ISL94212 communicates to a host microcontroller via an

SPI interface and to other ISL94212 devices using a robust,

proprietary, two-wire Daisy Chain system.

• Cell voltage scan rate of 19.5µs per cell (234µs to scan

12 cells)

The ISL94212 is offered in a 64 Ld TQFP package and is

specified for an operational temperature range of -40°C to

+85°C.

• Internal temperature monitoring

• Up to four external temperature inputs

• Robust daisy chain communications system

• Integrated system diagnostics for all key internal functions

• Hardwired and communications based fault notification

Applications

• Light electric vehicle (LEV); E-Moto; E-Bike

• Battery backup systems; Energy Storage Systems (ESS)

• Solar Farms

• Integrated watchdog shuts down device if communication is

lost

• Portable and semi-portable equipment

• 7µA shutdown current: Enable = V

• 2Mbps SPI

TO OTHER DEVICES (OPTIONAL)

ISL94212

VG1 VG1

VG2 VG2

DHi2

DLo2

DHi2

DLo2

DHi1

DLo1

SCLK

DOUT

DIN

HOST

MICRO

DATA READY

FAULT

VG1

VG2

MONITOR BOARD (Daisy Chain - Optional)

MONITOR BOARD (Master or Standalone)

FIGURE 1. TYPICAL APPLICATION

FN7938 Rev 1.00

April 23, 2015

Page 1 of 96

12 3 4 5 6 7...96

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