Datasheet > ISL94208EVZ

ISL94208EVZ

更新时间： 2022-06-24 15:44:44

品牌	Logo	应用领域
英特矽尔 - INTERSIL		电池
页数	文件大小	规格书
36页	916K
描述
4- to 6-Cell Li-ion Battery Management Analog Front-End

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ISL94208EVZ 数据手册

4- to 6-Cell Li-ion Battery Management Analog

Front-End

ISL94208

Features

The ISL94208 battery management IC is designed for use with

a microcontroller and features an analog front-end with

overcurrent protection for multi-cell Li-ion battery packs. The

ISL94208 supports battery packs consisting of 4 to 6 cells in

series and one or more cells in parallel.

• Software selectable overcurrent protection levels and

variable protect detection times

- 4 discharge overcurrent thresholds

- 4 short circuit thresholds

- 4 charge overcurrent thresholds

- 8 overcurrent delay times (charge)

- 8 overcurrent delay times (discharge)

- 2 short circuit delay times (discharge)

Using an internal analog multiplexer, the ISL94208 allows a

separate microcontroller with an A/D converter to monitor

each cell voltage plus internal and external temperature.

The ISL94208 provides integral overcurrent and short circuit

protection circuitry, an internal 3.3V voltage regulator, internal

cell balancing switches, and drive circuitry for external FET

devices for control of pack charge and discharge.

• Automatic FET turn-off and cell balance disable on reaching

external (battery) or internal (IC) temperature limit

• Automatic cell balance turn off on IC over-temperature

• Integrated charge/discharge FET drive circuitry

Related Literature

• ISL94208EVZ Evaluation Kit User Guide

• Internal cell balancing FETs handle up to 200mA of

balancing current for each cell

• Sleep operation with negative or positive edge wake-up

• <10µA Sleep mode

Applications

• Power tools

• Portable equipment

• Battery backup systems

• Military electronics

P+

ISL94208

VCC

VBACK

WKUP

VCELL6

CB6

VCELL5

RGC

CB5

RGO

VCELL4

µC

CB4

SCL

V_CC

VFET2

SDA

VCELL3

TEMPI

CB3

RESET

TEMP3V

VFET1

INT

CHRG

VCELL2

A/D INPUT

I/O

CB2

VMON

VBACK

CFET

DFET

VCELL1

CB1

VCELL0

B-

V_SS

P-

FIGURE 1. TYPICAL APPLICATION

June 21, 2013

FN8306.1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

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