isl94203 208 212 products

PRODUCT BRIEF
Industrial
Consumer
Intersil Industrial and Consumer Solutions
Intersil’s Battery Pack Monitoring,
Protection and Balancing Solutions
Intersil’s Li-Ion battery pack monitoring, protection and balancing IC’s
are specifically designed to meet the stringent safety, reliability and
performance requirements of portable and battery powered applications
such as consumer products, home appliances, battery backup and
e-motor/e-bikes.
Key Components
ISL94212
Multi Cell Battery Management and
Balancing IC
The IC’s incorporate built-in fault detection for all major internal
functions and detect external faults such as open wire, over and under
voltage as well as temperature and cell balancing faults to mitigate
battery pack failures.
ISL94203
3-8 Cell Li-Ion Battery Pack Manager
ISL94208
4 - 6 Cell Li-Ion Battery Management
Analog Front End
Overall the highly integrated functionality of the ISL94212, ISL94203
and ISL94208 offer a number of benefits and their use can significantly
reduce overall battery management costs.
ISL94212
ISL94212EVZ
Multi Cell Battery Management and
Balancing IC
ISL94212
• Supervises up to 12 cells
• Daisy chain capable up to 14 devices or 168 cells
• Cell voltage measurement accuracy
-- ±10mV from 0 to 50ºC, 2.6 to 4.0V
• Cell voltage scan rate of 20µs per cell
• Simple daisy chain communications
-- Low cost twisted pair wiring for stacking
-- Capacitive isolation
• 2.5Mbps SPI - Stand alone & Daisy Chain
• Integrated system diagnostic functions:
-- Cell over and under voltage
-- Over temperature
-- Open cell monitoring wires
-- Open temperature monitoring wires
-- VBAT and VSS connection integrity
-- Voltage reference function
-- Oscillator function
-- Watchdog shutdown of IC if communications are lost
• Robust Hot-Plug performance
-- No hazardous conditions due to random connection of
battery pack or cell wiring
-- No degradation due to hot plugging
• Extensive Cell Balance Control
-- Built-in cell balance FET drivers
-- Automatic cell balance based on manual control by µC,
time, or target capacity
VC12
DHi 2
CONTROL LOGIC AND COMMUNICATIONS
Key Features
VBAT
CB12
VC11
CB11
VC10
CB10
VC7
CB7
VC6
CB6
VC5
CB5
VC4
CB4
SPI
COMMS
CS/DLo 1
DIN
DOUT
DATA READY
COMMS RATE 1
COMMS RATE 0
COMMS SELECT 2
COMMS SELECT 1
DGND
FAULT
EN
BASE
VREG
V3P3
VDDEXT
V2P5
V2P5
VCC
VREF
MUX
VC8
CB8
SCLK/DHi 1
DAISY
CHAIN
AND
REF
VC MUX
CB9
INPUT BUFFER/LEVEL SHIFT AND FAULT DETECTION
VC9
DLo 2
VC3
ADC
CB3
TEMPREG
VC2
VC0
VSS
IC TEMP
VC1
CB1
REFERENCE
TEMP MUX
CB2
ExT1
ExT2
ExT3
ExT4
www.intersil.com/products/ISL94212
WWW.INTERSIL.COM
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PRODUCT BRIEF
Intersil Industrial and Consumer Solutions
Intersil’s Battery Pack Monitoring, Protection and Balancing Solutions
ISL94203
ISL94203EVAL1Z
3-8 Cell Li-Ion Battery Pack Manager
Key Features
• Complete stand alone operation
-- Stand-alone pack control - No microcontroller
needed
-- Operating parameters programmed in EEPROM
• Can be used as a front end for an external
microcontroller
-- µC can override some or all of the automatic
features.
• For 3 to 8 cell applications
-- Support LiIon CoO2, Li-Ion Mn2O4, and Li-Ion
FePO4 chemistries
-- Pack voltages from 6 to 36V
-- Monitors cell voltages from 0 to 4.8V
P+
CB7
VC6
INT
RGO
CHRG
ISL94203
SD
EOC
SCL
SDA
TEMPO
CB4
VC3
CB3
VC2
CB2
VC1
GND
CHMON
FETSOFF
CB5
VC4
• Protects battery pack and IC
• Automatically balance cells
• Measures cell voltages
• Monitors pack current and direction
• Provides diagnostic information
• Designed to withstand battery stack hot plug
events
C2
C3
PSD
CB8
VC7
CB6
VC5
Functions
LDMON
C1
DFET
VDD
CFET
VBATT
VC8
PCFET
CS2
43V
CS1
43V
CB1
VC0
xT1
xT2
VREF
VSS
ADDR
P-
www.intersil.com/products/ISL94203
ISL94208
ISL94208EVZ
4 - 6 Cell Li-Ion Battery
Management Analog Front End
P+
Key Features
VCC
• Used as a front end for an external
microcontroller
-- Provides analog voltage out – converted by
external µC
-- Incorporates charge/discharge FET drive
-- Supports internal or external passive cell
balancing FETs
• Includes automatic over current shutdown of
power FETs
• For 4 to 6 cell applications
-- Pack voltages from 8 to 27V
VCELL6
CB6
• Protects battery pack from over current
conditions
• Balances cells on command from µC
• Cell voltage measurement
• Measurement of temperature
• 3.3V regulator for pack electronics
• Diagnostic information
www.intersil.com/products/ISL94208
WWW.INTERSIL.COM
200Ω
200Ω
200Ω
VCELL0
B-
VSS
1.2MΩ
RGC
VCELL5
CB5
VCELL4
CB4
VFET2
VCELL3
CB3
VFET1
VCELL2
CB2
VBACK
VCELL1
CB1
1.8MΩ
RGO
SCL
SDA
TEMPI
TEMP3V
AO
VMON
CFET
µC
SCL
SDA
INT
VCC
1µF
RESET
A/D INPUT
I/O
CHRG
100Ω
3.6V
DFET
DSENSE
THERM
200Ω
WKUP
CSENSE
200Ω
ISL94208
ISREF
Functions
200Ω
500Ω
P-
For more information about Intersil’s Industrial
Products, contact your local sales office.
Printed in USA 7/14 © 2014 Intersil Americas LLC. All Rights Reserved. The following are trademarks or registered trademarks of
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