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Power Smart

PS3180 Datasheet Preview

PS3180 Datasheet

Smartshunttmbattery Monitor

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Preliminary
PS3180
SmartShuntTM Battery Monitor
FEATURES
Performs all major battery monitoring and reporting
functions including:
String voltage measurement,
Precise current measurement and integration,
Accurate capacity monitoring and integration
with precise on-board timebase,
Temperature measurement in 0.1°C intervals.
www.DataSheet4U.comIndustry’s highest accuracy battery monitor based on
the PS331 Smart Battery IC:
On-chip 14-bit integrating A/D converter,
On-chip 8-bit RISC microprocessor,
PowerSmart patented, self-learning algorithms
and 3-dimensional battery cell models.
Advanced communications interface using industry
standard SMBus V1.1 with PEC/CRC-8 error
correction.
Extremely low power operation:
Sleep Mode:
<12 µA typical
Sample Mode: <250 µA typical
Run Mode:
<500 µA typical
GENERAL DESCRIPTION
The PS3180 SmartShuntis a completely self-
contained advanced battery monitoring and reporting
device. The SmartShuntis a high current, integrated
shunt/sense resistor assembly. The module includes
PowerSmart’s Smart Battery IC and additional
circuitry mounted on a high current shunt for simple
system integration. The complete module can replace a
normal bus-bar or battery cell interconnect. External
connections include a communications interface
(SMBus) which can be easily isolated, an optional
external temperature sensor, and a string voltage input.
The PS3180 SmartShuntcan be used as a “non-
intelligent sensor” where only current, integrated
current (mAhr), voltage, and temperature readings are
read. At the user’s option, up to 34 standard Smart
Battery Data (SBData) fields can be read. These
include capacity calculations which are performed by
an on-board CPU and are based on PowerSmart’s
patented, self-learning algorithms and 3-dimensional
battery cell models. The complete module operates
from 5-18V to easily accommodate small and large cell
strings.
BENEFITS
Provides accurate and critical information for
increasing fuel economy and lowering emissions
for motive applications.
Reduces monitoring costs for stationary battery
backup applications.
Provides accurate battery state of charge for all
applications.
Provides information for determining state of
health.
Enhances safety by reducing risk of battery
overcharging.
APPLICATIONS
Hybrid Electric Vehicle (HEV) Batteries
Deep Cycle Marine Trolling Batteries
SLI for 12V, 24V, and 42V Battery Systems
Standby Telecommunications Battery Backup
UPS Battery Backup
Electric Vehicle Batteries
Rev. A
Copyright PowerSmart, Inc., 2000
1
www.powersmart.com




Power Smart

PS3180 Datasheet Preview

PS3180 Datasheet

Smartshunttmbattery Monitor

No Preview Available !

PowerSmart PS3180 SmartShuntTM Data Sheet
PRELIMINARY
ABSOLUTE MAXIMUM RATINGS
Description
Symbol
Min Max Units
Supply Voltage
Voltage directly at any pin (except VDD)
Temperature under bias
VDD-VSS
VPIN
TBIAS
5.0 20.0 V
-0.5 7.0 V
-25 +85 °C
Storage temperature (package dependent)
TSTORAGE
-35
+150
°C
Note: These are stress ratings only. Stress greater than the listed ratings may cause permanent damage to the device. Exposure to absolute
maximum ratings for an extended period may affect device reliability.
ELECTRICAL CHARACTERISTICS (Ta = -20°C to +85°C, VDD = 12V ±10%)
Description
Symbol
Min
DC Characteristics
Supply Voltage
Current consumption
www.DataSheet4U.comRun Mode
VDD 5.4
IDD 8
375
Sample Mode
190
Low-voltage Sleep
8
Shelf Sleep
10
Sense resistor voltage input
NTC Reference voltage output at TEMP pin
VSENSE
VREFT
-152
Typ Max
17.0
270 600
500 600
250 375
12 15
12 18
152
150
Units
V
µA
µA
µA
µA
µA
mV
mV
DC Characteristics - SMBus
Output voltage for 350µA output current
Pull down current at SCL, SDA
Current at SCL, SDA
Input voltage for LOW at SCL, SDA
Input voltage for HIGH at SCL, SDA
Output voltage for LOW at SCL, SDA
Device sink current
SCL, SDA
IPULLDOWN
ILO, IHI
VLO,IN
VHI,IN
VLO,OUT
ISINK
35 mV
0.5 1.0
µA
10.0 µA
-0.5 0.4 0.6
V
1.4 2 5.5
V
0.2 0.4
V
100 350 µA
AC Characteristics - SMBus
Clock operating frequency
Broadcast bit frequency
Message buffering time
Timeout period
fSMB
FSMB-MASTR
TLOW:SEXT
TTIMEOUT
<1.0 100
50 FRC/8 68
24
25 35
kHz
kHz
mS
mS
Measurement Resolution and Timing
Voltage granularity, @Max = 17000mV
Temperature granularity, look up tables
Current granularity, 25A version, Rsense = 1 m
Current granularity, 100A version, Rsense = 0.25 m
Voltage measurement time, 10 bit
Temperature measurement time, 10 bit
Current measurement time, 13 bit + sign
Vgranularity
Tgranularity
Igranularity
Igranularity
Vtime
Ttime
Itime
16.5 mV/bit
0.1 °C/bit
18.3 mA/bit
73.2 mA/bit
45 mS
45 mS
360 mS
MODULE VERSIONS
PowerSmart offers the PS3180 as a complete battery
monitoring and control module in a variety of standard
and semi-custom versions. The PS3180 can be easily
customized for a particular application’s battery cell
chemistries using the on-board module EEPROM.
Typical cell chemistries are Lead-Acid (both standby
and cycling), NiMH, NiCd, LiIon, and LiPolymer.
Upgrades to previously assembled battery units are
simple via the standard SMBus serial communications
interface.
The underlying metal shunt resistance can be sized to a
particular current range and/or mechanical cell spacing
requirement. Please contact PowerSmart for ordering
information.
Rev. A
Copyright PowerSmart, Inc., 2000
2
www.powersmart.com


Part Number PS3180
Description Smartshunttmbattery Monitor
Maker Power Smart
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