2004 Microchip Technology Inc.
DS21842B-page 1
PS5162
Features
• PS501 tested, fully populated modules for
evaluation
• Designed to work with 2 series cell Lithium
chemistry configurations
• Performs all major Lithium battery management
functions, including:
- Accurate capacity monitoring
- Lithium cell protection
• SOC display with four LEDs and a switch
• Fully compliant with industry standard
Smart Battery Data Specification v1.1a
• SMBus v1.1 with PEC/CRC-8 communication
with system host
• High accuracy measurement of charge/discharge
current, voltage and temperature with on-chip
16-bit integrating A/D
• Precise capacity reporting using Microchip
patented algorithms and 3D battery cell models
• 3D models and “learned” parameters stored in
integrated memory
• Complete hardware and software development
tools available:
- ICD (In-Circuit Debugger) port to support
development of custom code
• Extremely low-power operation:
- Run mode: 140
µ
A typical
- Low-Voltage Sleep mode: 30
µ
A typical
- Shelf-Sleep mode: 5
µ
A typical
• Overall mechanical dimensions:
- 0.339 W x 2.165 L (inches)
- 8.6 W x 55.0 L (millimeters)
Ordering Information
Part Number
Description
PS5162
Li Ion/Poly – 2 series cells
PS501 Two-Cell Battery Manager Module with
LED SOC Display for Lithium Chemistries
PS5162
DS21842B-page 2
2004 Microchip Technology Inc.
1.0
GENERAL DESCRIPTION
The PS5162 module is a complete smart battery
controller subsystem based on the Microchip PS501
field reprogrammable battery manager with patented
Accuron
®
technology. The module is designed to oper-
ate in a battery pack consisting of two (2) series con-
nected Li-based cells. The module consists of the
Microchip PS501 battery manager IC with a four-LED
SOC display and an optional connection for an external
thermistor.
1.1
Quick Start – Pack Assembly
Follow these directions to assemble a pack with the
PS5162 module.
• Use standard precautions when handling static
sensitive devices.
• Modules should be connected to battery cells in
the order indicated below to insure proper start-up
and operation. Wires should be attached to the
modules first and then connected to the battery
cells as instructed.
• The connection sequence is critical to successful
use of the PS501 family of CMOS ASICs. The
pack positive should be securely connected to the
module first, followed by the intermediate cell
connection and then pack negative.
Step 1) Configure the module for optional external
thermistor use. PS5162 modules are
shipped configured to use the internal tem-
perature sensor only. To add an external
thermistor to the board, remove resistor
R16 (side 2) and connect the thermistor
across via TN and TR.
Step 2) Connect wires to module. Use large diame-
ter wire (18 AWG-20 AWG) for current
carrying lines from VR, V1, BP and BN. All
others are signal only lines (24 to 22 AWG).
Step 3) Connect external connector to BN, T, C, D
and BP.
Step 4) Connect V1 to the most positive point on
the battery cell stack.
Step 5) Connect V2 to the middle of the cell stack.
Step 6) Connect VR to the most negative point on
the battery cell stack.
Step 7) Program the assembled pack using
Microchip’s software and PowerCal™
board or PowerInfo™ board hardware.
The memory parameters can be changed at
will using the utilities on the memory page in
the software.
Step 8) Calibrate the pack using the software and
PowerCal™ board hardware. The pack is
now ready for use.
FIGURE 1-1:
CONNECTION POINTS (SIDE 1)
2004 Microchip Technology Inc.
DS21842B-page 3
PS5162
FIGURE 1-2:
BOARD ASSEMBLY (SIDE 1)
FIGURE 1-3:
BOARD ASSEMBLY (SIDE 2)
PS5162
DS21842B-page 4
2004 Microchip Technology Inc.
2.0
FUNCTIONAL DESCRIPTION
2.1
PS501 Fuel Gauge
The module fuel gauge provides State-Of-Charge
(SOC) and battery status data in accordance with the
SMBus standards version 1.1. The PS501 monitors the
cell voltages, battery temperature and current to deter-
mine SOC and battery status. The State-Of-Charge
calculations are compensated for cell self-discharge.
The remaining time calculation is compensated for
temperature and discharge rate. The parameters for
determining battery status flags and alarm thresholds
are all programmable, as is the battery design capacity
and the battery performance model data. Please refer
to the “PS501 Data Sheet” (DS21818) for details on
configuring the PS501 device.
2.2
Primary Safety
The primary safety circuit provides cell protection from
conditions of overcharge, overdischarge and over-
current. The analog safety IC measures individual cell
voltages, current and voltage across the safety FETs.
These values are compared against internal reference
values and the gates of two N-channel power
MOSFETs are controlled based on the comparison
results.
3.0
BOARD DESCRIPTION
PCB schematics and bill of materials are included here
for completeness. To download the full size schematic
and BOM, please visit the Microchip web site.
3.1
Mechanical Dimensions
Overall Dimensions: 2165 mils x 339 mils
2004 Microchip Technology Inc.
DS21842B-page 5
PS5162
3.2
Schematic
FIGURE 3-1:
PS5162 BOARD SCHEMATIC
1
2
3
4
56
A
B
C
D
6
5
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3
2
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8
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9
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23
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24
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25
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O(
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26
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O(
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27
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R6
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PS5162
DS21842B-page 6
2004 Microchip Technology Inc.
3.3
Bill of Materials
TABLE 3-1:
PS5162 BILL OF MATERIALS
FIGURE 3-2:
PS5162 DIMENSION DETAILS
Symbols
Description
Manufacturer
Manuafacturer PN
Qty.
Raw PCB, PS5162
Microchip
04-826172 Rev. 3.1
1
C11, C12
Capacitor, Ceramic, 1.0
µ
F, 16V, +/-10%,
X5R dielectric, 0603
Panasonic
Murata
ECJ-1VB1C105K
GRM188R61C105KA93D
2
C18
Capacitor, Ceramic, 1.0 nF, 50V, +/-10%,
X7R dielectric, 0603
Panasonic
ECJ-1VB1H102K
1
C3
Capacitor, Ceramic, 10 nF, 50V, +/-10%,
X7R dielectric, 0603
Panasonic
ECJ-1VB1H103K
1
C2, C16-C17
Capacitor, Ceramic, 100 nF, 25V, +80%/-20%,
Y5V dielectric, 0603
Panasonic
ECJ-1VF1E104Z
3
C1, C5, C7
Capacitor, Ceramic, 330 nF, 25V, +80%/-20%,
Y5V dielectric, 0805
Panasonic
ECJ-2YF1E334Z
3
LED0-LED3
LED, clear green, 1206 package
Lumex
SML-LX1206GC-TR
4
D1
Dual Zener Diode, 5.6V, +/-5%, 300 mW,
common anode, SOT-23
Diodes Inc.
General Semiconductor
AZ23C5V6-7
AZ23-C5V6
1
Q1
MOSFET, dual N-channel Enhancement mode,
-20V, -5A, TSSOP (8/4.4 mm body width) package
Toshiba
TPCS8209(TE12L)
1
R16
Resistor, zero ohm, 0402
Panasonic
ERJ-2GE0R00X
1
R5
Resistor, film, 0603, 1%, 3.65 KOhms
Panasonic
ERJ-3EKF3651V
1
R35
Resistor, film, 0603, 1%, 365 ohms
Panasonic
ERJ-3EKF3650V
1
R26
Resistor, film, 0603, 1%, 221 KOhms, 25 ppm TC
Susumu Co. Ltd.
RR0816P-2213-D-34D
1
R7-R8
Resistor, film, 0603, 5%, 20 ohms
Panasonic
ERJ-3GEYJ200V
2
R6
Resistor, film, 0603, 5%, 20 KOhms
Panasonic
ERJ-3GEYJ203V
1
R11-R12
Resistor, film, 0805, 5%, 100 ohms
Panasonic
ERJ-6GEYJ101V
2
R15
Resistor, film, 0805, 5%, 2.0 KOhms
Panasonic
ERJ-6GEYJ202V
1
R1
Resistor, film, 0805, 5%, 20 ohms
Panasonic
ERJ-6GEYJ200V
1
R2, R9-R10
Resistor, film, 0805, 5%, 240 ohms
Panasonic
ERJ-6GEYJ241V
3
R36
Resistor, metal strip, 2512, 1%, 0.020 ohms
Vishay
WSL2512-0.020-1%-R86
1
SW1
Switch, SPST-momentary, push button,
surface mount
ALPS
Fuk Hing Ind.
SKQGADE010
11871501
1
U2
IC, Battery Protection Circuit, Li Ion, 2-cell,
-40°C to +85°C, SOT-23-6 package
Seiko Instruments
S-8242AAG-M6T2G
(Note 1)
1
U1
IC, Single Chip Battery Manager, programmable,
-20°C to +85°C, SSOP-28
Microchip
PS501-I/ST
1
Note
1:
Other variants of the S-8242A series, with different trip points, are also available. Consult the S-8242A series data sheet.
2004 Microchip Technology Inc.
DS21842B-page 7
PS5162
4.0
DEVELOPMENT TOOL
SUMMARY
Microchip provides all the necessary hardware and
software to enable easy tailoring of battery control algo-
rithm parameters and cell performance models to meet
specific application requirements and attain the highest
accuracy available anywhere. Table 4-1 summarizes
the development tool offering from Microchip to support
the PS5162. Please refer to the Microchip web site for
ordering information and design documentation
(including schematics) at www.microchip.com.
4.1
Reference Documents
This data sheet provides an overview of the PS5162
Battery Manager module. For further information on the
PS501 and development tool operations, please refer
to the following documents available for download at
www.microchip.com.
TABLE 4-2:
MICROCHIP REFERENCE DOCUMENTS
TABLE 4-1:
MICROCHIP DEVELOPMENT TOOL SUMMARY
Development Tool
Use
PowerInfo™ hardware with PC software
(PS041)
Read and write Smart Battery data values, memory programming
PowerCal™ hardware with PC software
(PS042)
Read and write Smart Battery data values, memory programming,
pack calibration, pack test
Document Number
Documents Available
DS21818
PS501 Single Chip Field Reprogrammable Battery Manager Data Sheet (IC Products)
DS40234
PS041 PowerInfo™ Configuration Interface Product Brief
DS40237
PS042 PowerCal™ Calibration Platform Data Sheet
PS5162
DS21842B-page 8
2004 Microchip Technology Inc.
NOTES:
2004 Microchip Technology Inc.
DS21842B-page 9
PS5162
Information contained in this publication regarding device
applications and the like is intended through suggestion only
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
No representation or warranty is given and no liability is
assumed by Microchip Technology Incorporated with respect
to the accuracy or use of such information, or infringement of
patents or other intellectual property rights arising from such
use or otherwise. Use of Microchip’s products as critical com-
ponents in life support systems is not authorized except with
express written approval by Microchip. No licenses are con-
veyed, implicitly or otherwise, under any intellectual property
rights.
Trademarks
The Microchip name and logo, the Microchip logo, Accuron
and PowerSmart are registered trademarks of Microchip
Technology Incorporated in the U.S.A. and other countries.
SmartShunt is a registered trademark of Microchip
Technology Incorporated in the U.S.A.
PowerCal, PowerInfo, PowerMate, PowerTool, SmartSensor
and SmartTel are trademarks of Microchip Technology
Incorporated in the U.S.A. and other countries.
All other trademarks mentioned herein are property of their
respective companies.
© 2004, Microchip Technology Incorporated. Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
DS21842B-page 10
2004 Microchip Technology Inc.
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