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PS5162
PS501 Two-Cell Battery Manager Module with LED SOC Display for Lithium Chemistries
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 A typical - Low-Voltage Sleep mode: 30 A typical - Shelf-Sleep mode: 5 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 PS5162 Description Li Ion/Poly - 2 series cells
2004 Microchip Technology Inc.
DS21842B-page 1
PS5162
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(R) technology. The module is designed to operate in a battery pack consisting of two (2) series connected 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. Step 1) Configure the module for optional external thermistor use. PS5162 modules are shipped configured to use the internal temperature 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 diameter 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 PowerCalTM board or PowerInfoTM 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 PowerCalTM board hardware. The pack is now ready for use.
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.
FIGURE 1-1:
CONNECTION POINTS (SIDE 1)
DS21842B-page 2
2004 Microchip Technology Inc.
PS5162
FIGURE 1-2: BOARD ASSEMBLY (SIDE 1)
FIGURE 1-3:
BOARD ASSEMBLY (SIDE 2)
2004 Microchip Technology Inc.
DS21842B-page 3
PS5162
2.0
2.1
FUNCTIONAL DESCRIPTION
PS501 Fuel Gauge
2.2
Primary Safety
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 determine 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.
The primary safety circuit provides cell protection from conditions of overcharge, overdischarge and overcurrent. 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
DS21842B-page 4
2004 Microchip Technology Inc.
3.2
1 TN TR EXTERNAL THERMISTOR CONNECTIONS (SEMITEC 103AT OR 103ETB -- 10K AT 25C) R16 REMOVE R16 IF EXTERNAL THERMISTOR IS INSTALLED
FIGURE 3-1:
2
3
4
5
6
0
Schematic
D U1 LED0 18 R26 221K LED1 LED2 LED3 20 11 VC(1) VC(2) VC(3) VC(4) VDDA 20K V5 V1 SMB-CLK SMB-DTA RSHP VSSD 14 15 RSHN C3 10 nF 1 8 6 7 20 20 1 3 D1 AZ23C5V6 3 2 7 6 R15 2.0K 4 5 Q1 TPCS8209 C17 100 nF C18 1.0 nF BPACK CONNECTIONS BN R7 R8 2 240 240 365 R9 R10 R35 C D T BP C D T R6
SW PGC PGD MCLR
PS501 ROSC
D
TN
TR 17 VREFT VNTC 16
C VSSA VDDD V5 C7 330 nF 28 1
PS5162 BOARD SCHEMATIC
C5 330 nF 13
GPIO(0) GPIO(1) GPIO(2) GPIO(3) GPIO(4) GPIO(5) GPIO(6) GPIO(7) GPIO(8) GPIO(9) GPIO(10) GPIO(11) GPIO(12) SW1
24 25 26 27 2 3 4 5 19 20 21 22 23
LED0 LED1 LED2 LED3
PGC PGD MCLR VDDD EGND
ICD PORT
DO
VSS 1 2
CO
2004 Microchip Technology Inc.
R5 3.65K R1 R2 10 9 8 12 CAUTION: WHEN USING ICD PORT, A 10K RESISTOR MUST BE CONNECTED BETWEEN VDDD AND EGND 240 C1 330 nF C2 100 nF C R36
VSHN
CELL CONNECTION
V1
V1
V2
V2
VR
VR
0.020 GROUND PLANE CONNECTION C16 100 nF CURRENT SENSE RESISTOR
R11 5 VDD VC VM 3 PRIMARY SAFETY CIRCUIT R12 4 100 C11 1.0 F C12 1.0 F 100
U2
S8242A B
B
6
REFERENCE PS500-BASED DESIGN FOR 2-Cell LiIon APPLICATIONS
FOR REVISION HISTORY, REFER TO 826172 CHANGE LOG. CONTRACT NO.
Microchip Technology, Inc.
APPROVALS
DRAWN CHECKED
DATE
R. CASEBOLT 27 Oct 2003
PowerSmart Products Group 2745 Dallas Parkway, Suite 400 Plano, TX 75093 TITLE
12
SIZE
http://www.microchip.com 469-241-0087 Voice/469-241-0106 Fax
A
PS5162 SCHEMATIC
CODE IDENT NO. DRAWING NO. REV
A
B
SCALE FILE
03-826172
NONE
3 4 5
3.1
03-826172 REV 3-1.sch
6
*** CONFIDENTIAL *** THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION THAT IS THE INTELLECTUAL PROPERTY OF MICROCHIP TECHNOLOGY, INC.
Sheet 1 of 1
3-Mar-2004 18:50:09
PS5162
DS21842B-page 5
2
1
PS5162
3.3 Bill of Materials
PS5162 BILL OF MATERIALS
Description Raw PCB, PS5162 C11, C12 C18 C3 C2, C16-C17 C1, C5, C7 LED0-LED3 D1 Q1 R16 R5 R35 R26 R7-R8 R6 R11-R12 R15 R1 R2, R9-R10 R36 SW1 U2 U1 Note 1: Capacitor, Ceramic, 1.0 F, 16V, +/-10%, X5R dielectric, 0603 Capacitor, Ceramic, 1.0 nF, 50V, +/-10%, X7R dielectric, 0603 Capacitor, Ceramic, 10 nF, 50V, +/-10%, X7R dielectric, 0603 Capacitor, Ceramic, 100 nF, 25V, +80%/-20%, Y5V dielectric, 0603 Capacitor, Ceramic, 330 nF, 25V, +80%/-20%, Y5V dielectric, 0805 LED, clear green, 1206 package Dual Zener Diode, 5.6V, +/-5%, 300 mW, common anode, SOT-23 MOSFET, dual N-channel Enhancement mode, -20V, -5A, TSSOP (8/4.4 mm body width) package Resistor, zero ohm, 0402 Resistor, film, 0603, 1%, 3.65 KOhms Resistor, film, 0603, 1%, 365 ohms Resistor, film, 0603, 1%, 221 KOhms, 25 ppm TC Resistor, film, 0603, 5%, 20 ohms Resistor, film, 0603, 5%, 20 KOhms Resistor, film, 0805, 5%, 100 ohms Resistor, film, 0805, 5%, 2.0 KOhms Resistor, film, 0805, 5%, 20 ohms Resistor, film, 0805, 5%, 240 ohms Resistor, metal strip, 2512, 1%, 0.020 ohms Switch, SPST-momentary, push button, surface mount IC, Battery Protection Circuit, Li Ion, 2-cell, -40C to +85C, SOT-23-6 package IC, Single Chip Battery Manager, programmable, -20C to +85C, SSOP-28 Manufacturer Microchip Panasonic Murata Panasonic Panasonic Panasonic Panasonic Lumex Manuafacturer PN 04-826172 Rev. 3.1 ECJ-1VB1C105K GRM188R61C105KA93D ECJ-1VB1H102K ECJ-1VB1H103K ECJ-1VF1E104Z ECJ-2YF1E334Z SML-LX1206GC-TR Qty. 1 2 1 1 3 3 4 1 1 1 1 1 1 2 1 2 1 1 3 1 1 1 1
TABLE 3-1:
Symbols
AZ23C5V6-7 Diodes Inc. General Semiconductor AZ23-C5V6 Toshiba Panasonic Panasonic Panasonic Susumu Co. Ltd. Panasonic Panasonic Panasonic Panasonic Panasonic Panasonic Vishay ALPS Fuk Hing Ind. Seiko Instruments Microchip TPCS8209(TE12L) ERJ-2GE0R00X ERJ-3EKF3651V ERJ-3EKF3650V RR0816P-2213-D-34D ERJ-3GEYJ200V ERJ-3GEYJ203V ERJ-6GEYJ101V ERJ-6GEYJ202V ERJ-6GEYJ200V ERJ-6GEYJ241V WSL2512-0.020-1%-R86 SKQGADE010 11871501 S-8242AAG-M6T2G (Note 1) PS501-I/ST
Other variants of the S-8242A series, with different trip points, are also available. Consult the S-8242A series data sheet.
FIGURE 3-2:
PS5162 DIMENSION DETAILS
DS21842B-page 6
2004 Microchip Technology Inc.
PS5162
4.0 DEVELOPMENT TOOL SUMMARY
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.
Microchip provides all the necessary hardware and software to enable easy tailoring of battery control algorithm 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.
TABLE 4-1:
MICROCHIP DEVELOPMENT TOOL SUMMARY
Development Tool Use Read and write Smart Battery data values, memory programming Read and write Smart Battery data values, memory programming, pack calibration, pack test
PowerInfoTM hardware with PC software (PS041) PowerCalTM hardware with PC software (PS042)
TABLE 4-2:
DS21818 DS40234 DS40237
MICROCHIP REFERENCE DOCUMENTS
Documents Available PS501 Single Chip Field Reprogrammable Battery Manager Data Sheet (IC Products) PS041 PowerInfoTM Configuration Interface Product Brief PS042 PowerCalTM Calibration Platform Data Sheet
Document Number
2004 Microchip Technology Inc.
DS21842B-page 7
PS5162
NOTES:
DS21842B-page 8
2004 Microchip Technology Inc.
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 components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, 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 Technology Incorporated in the U.S.A. of Microchip
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. (c) 2004, Microchip Technology Incorporated. Printed in the U.S.A., All Rights Reserved.
Printed on recycled paper.
2004 Microchip Technology Inc.
DS21842B-page 9
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02/17/04
DS21842B-page 10
2004 Microchip Technology Inc.

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