PS5162 MICROCHIP | Alldatasheet
Document overview
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Technical content
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 µA typical - Low-Voltage Sleep mode: 30 µA typical - Shelf-Sleep mode: 5 µA typical Overall mechanical dimensions: - 0.339 W x 2.165 L (inches) - 8.6 W x 55.0 L (millimeters)
Ordering Information
PS5162 Li Ion/Poly – 2 series cells PS501 Two-Cell Battery Manager Module with LED SOC Display for Lithium Chemistries
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: CONNECTIO N POINTS (SIDE 1)
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 654321 D C B A Microchip Technology, Inc. PowerSmart Products Group
2745 Dallas Parkway, Suite 400
Plano, TX 75093 469-241-0087 Voice/469-241-0106 Fax PS5162 SCHEMATIC 03-826172 3.1 3-Mar-2004 18:50:09 03-826172 REV 3-1.sch Sheet of THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION THAT IS THE INTELLECTUAL PROPERTY OF MICROCHIP TECHNOLOGY, INC. SIZE DRAWING NO.CODE IDENT NO. REV B FILESCALE NONE TITLE APPROVALS DATE CONTRACT NO. http://www.microchip.com DRAWN CHECKED 100 nF C17 100 nF CELL CONNECTION PACK CONNECTIONS CURRENT SENSE RESISTOR EXTERNAL THERMISTOR CONNECTIONS (SEMITEC 103AT OR 103ETB -- 10K AT 25°C) REMOVE R16 IF EXTERNAL THERMISTOR IS INSTALLED VR R26 221K TR TN 330 nF D C T BP BN C16 100 nF AZ23C5V6 VR C D T TN TR 330 nF 330 nF R36 0.020 R2240 LED0 LED1 LED2 LED3 C18 1.0 nF 3.65K R720 R820 R16 0 R9240 R10240 R35365 R15 2.0K R11
100 R12
1.0 µF C12 1.0 µF PRIMARY SAFETY CIRCUIT R. CASEBOLT 27 Oct 2003 REFERENCE PS500-BASED DESIGN FOR 2-Cell LiIon APPLICATIONS C3 10 nF FOR REVISION HISTORY, REFER TO 826172 CHANGE LOG. TPCS8209 SW1 VDDD1 GPIO(4) 2 GPIO(5) 3 GPIO(6) 4 GPIO(7) 5 SMB-CLK 6 SMB-DTA 7 VC(4)8 VC(3)9 VC(2)10 VC(1)11 VDDA12 VSSA13 RSHP 14 RSHN 15 VNTC16 VREFT17 ROSC 18 GPIO(8) 19 GPIO(9) 20 GPIO(10) 21 GPIO(11) 22 GPIO(12) 23 GPIO(0) 24 GPIO(1) 25 GPIO(2) 26 GPIO(3) 27 VSSD28 U1 PS501 R620K PGC PGD MCLR GROUND PLANE CONNECTION PGD PGC MCLR EGND ICD PORT VSHN VDD5 VC4 VSS6 VM 3 CO 2 DO 1 U2 S8242A VDDD R120 LED0 LED1 LED2 LED3 CAUTION: WHEN USING ICD PORT, A 10K RESISTOR MUST BE CONNECTED BETWEEN VDDD AND EGND SW
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 µF, 16V, +/-10%, X5R dielectric, 0603 Panasonic Murata ECJ-1VB1C105K GRM188R61C105KA93D 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 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 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) 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
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
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 m eets 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 Mi crochip. No licenses are con- veyed, implicitly or otherwis e, 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 he rein are property of their respective companies. © 2004, Microchip Technology Incorporated. Printed in the U.S.A., All Rights Reserved. Printed on recycled paper.
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