PS4200 MICROCHIP | Alldatasheet
Document overview
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Technical content
Features
- PS402 tested, fully populated modules for evaluation and production Designed to work with 6 to 10 series cell NiMH configurations Performs all major NiMH battery management functions including - Accurate capacity monitoring - Optional external thermistor configuration for accurate temperature monitoring - Supports three full charge detection methods - dT/dt, -dV, programmable overcharge 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 15-bit integrating A/D Precise capacity reporting using Microchip patented algorithms and 3D battery cell models 3D models and “learned” parameters stored in integrated EPROM and EEPROM Extremely low power operation: - Sleep Mode: < 13 µA typical - Run Mode: < 500 µA typical - Sample Mode: < 250 µA typical Complete hardware and software development tools available Overall mechanical dimensions: - 0.339 W x 1.772 L (inches) - 8.6 W x 45.0 L (millimeters) Board Photo
Ordering Information
PS4200 NiMH - 6 to 10 series cells NEED PHOTO PS402 Battery Manager Module with LED SOC Display
DS21768A-page 2 Preliminary 2003 Microchip Technology Inc.
1.0 GENERAL DESCRIPTION
The PS4200 module is a complete smart battery controller subsystem based on the Microchip PS402 battery manager with patented Accuron™ technology. The module is designed to operate in a battery pack consisting of six (6) to ten (10) series connected Ni-based cells. The module consists of the Microchip PS402 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 PS4200 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 PS402 family of CMOS ASICs. The pack positive should be securely connected to the module first, followed by pack negative. Step 1: Configure the module for optional external thermistor use. PS4200 modules are shipped configured to use the internal temperature sensor only. To add an external thermistor to the board, remove resistor R16 and connect the thermistor across vias TN and TR. Step 2: Connect wires to module. Use large diameter wire (18 AWG-20 AWG) for current carrying lines from VR and V1. All others are signal only lines (24 to 22 AWG). Step 3: Connect V1 to the most positive point on the battery cell stack. Step 4: Connect VR to the most negative point on the battery cell stack. Step 5: Connect external connector to BN, T, C, D and BP . Step 6: Program the assembled pack using Microchip's PowerTool™ software and PowerCal™ board or PowerInfo™ board hardware. The EEPROM parameters can be changed at will using the utilities on the P4 EE page in the PowerTool software. The OTP EPROM parameters can be changed a limited number of times using utilities on the P4 OTP page. To write to the OTP EPROM, an additional voltage (V PP) must be applied to the PS402. This programming voltage can be obtained from the PowerInfo board and applied to the PS4200 at connec- tion VP (small thru-hole) located on the small edge of the board opposite the connector edge. Step 7: Calibrate the pack using the PowerTool software and PowerCal board hardware. The pack is now ready for use. FIGURE 1-1: CONNECTION POINTS (SIDE 1) VP TR TN VR V1 BN D C BP T
2003 Microchip Technology Inc. Preliminary DS21768A-page 3 PS4200 FIGURE 1-2: BOARD ASSEMBLY (SIDE 1) FIGURE 1-3: BOARD ASSEMBLY (SIDE 2)
2.0 FUNCTIONAL DESCRIPTION
2.1 PS402 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 PS402 monitors the pack voltage, battery temperature and current to determine SOC and battery status. The State-of- Charge calculations are compensated for cell self discharge and charge acceptance. 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 data sheet "PS402 Single Chip Battery Manager - Nickel Chemistries" for details on configuring the PS402.
2.2 OTP EPROM Programming
To write to the OTP EPROM, an additional voltage (VPP) must be applied to the PS402. This programming voltage can be obtained from the PowerInfo board and applied to the PS4200 at connection VP (small thru-hole) located on the small edge of the board opposite the connector edge. Then use the utilities located on the P4 OTP page of the PowerTool software to write new values to the PS402 OTP EPROM. C5 R32 R26 SW1C1R29R1 LED0 LED1 LED2 LED3 R16 C17 R36C7 C18 R35 D3 R9 R8 U1 R6R10 R7C16 D1 D2 R5
DS21768A-page 4 Preliminary 2003 Microchip Technology Inc.
3.0 BOARD DESCRIPTION
PCB schematics and bill of materials are included here for completeness. To download full size schematic and BOM, please visit the Microchip web site. FIGURE 3-1: BOARD SCHEMATIC
2003 Microchip Technology Inc. Preliminary DS21768A-page 5 PS4200 TABLE 3-1: BILL OF MATERIALS ID PartSmart Part Number Symbols Description Manufacturer Manufacturer PN Supplier Supplier PN Qty: 1 04-826156 Rev. 1.1 Raw PCB, PS4200 Microchip 04-826156 Rev. 1.1 Microchip 04-826156 Rev. 1.1 1 2 CC-0603-10X7R50-1.0NF-01 C18 Capacitor, Ceramic, 1.0nF, 50V, +/-10%, X7R dielectric, 0603 Panasonic ECJ- 1VB1H102K Digikey PCC1772CT-ND 1
3 CC-0603-8020Y5V25-100NF-01 C16-C17 Capacitor,
Ceramic, 100nF, 25V, +80%/-20%, Y5V dielectric, 0603 Panasonic ECJ- 1VF1E104Z Digikey PCC1794CT-ND 2
4 CC-0805-8020Y5V25-330NF-01 C5, C7 Capacitor,
Ceramic, 330nF, 25V, +80%/-20%, Y5V dielectric, 0805 Panasonic ECJ- 2YF1E334Z Digikey PCC1856CT-ND 2
5 CC-1206-10X7R25-330NF-01 C1 Capacitor,
Ceramic, 330nF, 25V, +/-10%, X7R dielectric, 1206 Panasonic ECJ- 3VB1E334K Digikey PCC1889CT-ND 1
6 DL-1206LED-GC-SMLLX1206GC-01 LED0-
LED, clear green, 1206 package Lumex SML- LX1206GC-TR Digikey 67-1357-1-ND 4
7 DT-SMB-X-SMBJ20A-01 D3 TVS, 20V, 600W,
unipolar, SMB package Diodes, Inc. Crydom Central Semi. SMBJ20A-13 SMBJ20A 1SMB20A-PST Digikey Digikey Central Semi. SMBJ20ADICT-ND SMBJ20ACCCT-ND 1SMB20A-PST
8 DZ-SOT23-5D-AZ23C5V6-01 D1, D2 Dual Zener
Diode, 5.6V +/- 5%, 300mW, common-anode, SOT-23 Diodes Inc. General Semi. AZ23C5V6-7 AZ23-C5V6 Digikey General Semi. AZ23C5V6DICT-ND AZ23-C5V6
9 RF-0603-1-221K-01 R26 Resistor, film,
0603, 1%, 221K ohms Panasonic ERJ- 3EKF2213V Digikey P221KHCT-ND 1 10 RF-0603-1-3.65K-01 R1 Resistor, film, 0603, 1%, 3.65K ohms Panasonic ERJ- 3EKF3651V Digikey P3.65KHCT-ND 1
11 RF-0603-5-0-01 R16 Resistor, zero-
ohm, 0603 Panasonic ERJ- 3GEY0R00V Digikey P0.0GCT-ND 1
12 RF-0603-5-150-01 R5-R8 Resistor, film,
0603, 5%, 150 ohms Panasonic ERJ- 3GEYJ151V Digikey P150GCT-ND 4
13 RF-0603-5-15-01 R32 Resistor, film,
0603, 5%, 15 ohms Panasonic ERJ- 3GEYJ150V Digikey P15GCT-ND 1 14 RF-0603-5-5.1K-01 R29 Resistor, film, 0603, 5%, 5.1K ohms Panasonic ERJ- 3GEYJ512V Digikey P5.1KGCT-ND 1
15 RF-0805-5-360-01 R9-R10 Resistor, film,
0805, 5%, 360 ohms Panasonic ERJ- 6GEYJ361V Digikey P360ACT-ND 2 16 RF-2512-1-0.020-01 R36 Resistor, metal strip, 2512, 1%, 0.020 ohms Vishay WSL2512- 0.020-1%-R86 Vishay WSL2512-0.020-1%- R86
17 RT-0603-2-103KT16082P-01 R35 Thermistor, 10K
ohms at 25C, B value 3435, -40C to 125C operat- ing temperature range, 0603 SMT package Semitec 103KT1608-2P Semitec 103KT1608-2P 1
18 SW-SWSMD65X52-SPSTM-
SW1 Switch, SPST- momentary, pushbutton, sur- face-mount ALPS SKQGADE010 ALPS SKQGADE010 1
19 UM-SSOP28-2585-PS402-01 U1 IC, Single-chip
Manager, pro- grammable, -25C to 85C, SSOP-28 Microchip PS402 Microchip PS402 1
DS21768A-page 6 Preliminary 2003 Microchip Technology Inc.
3.1 Mechanical Dimensions
Overall Dimensions: 1772 mils x 339 mils FIGURE 3-2: PS4200 DIMENSION DETAILS
4.0 DEVELOPMENT TOOL
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 PS4200. 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 PS4200 Battery Manager Module. For further information on the PS402 and development tool operations, please refer to the documents listed in Table 4-2 available for download at www.microchip.com. TABLE 4-1: MICROCHIP DEVELOPMENT TOOL SUMMARY TABLE 4-2: MICROCHIP REFERENCE DOCUMENTS 3.4mm 4.3mm 8.6mm 1.6mm 5.2mm 1.1mm 16.0mm 22.0mm 25.0mm 28.0mm 31.0mm 32.4mm 38.5mm 12.4mm 14.6mm 41.5mm 43.6mm 45.0mm 42.0mm 3.4mm 4.3mm 7.2mm 1.4mm 5.2mm L-SHAPED BOX INDICATES AREA CLEAR OF COMPONENTS ON THE BOTTOM SIDE, BEHIND THE LEDs AND SWITCH. EDGE OF BOX UNDER LEDs IS LOCATED 3.3mm FROM UPPER EDGE OF PCB. Development Tool Use PowerInfo™ hardware with PowerTool™ software (PS041) Read and write Smart Battery data values, EEPROM programming, OTP EPROM programming PowerCal™ hardware with PowerTool software (PS042) Read and write Smart Battery data values, EEPROM programming, OTP EPROM programming, pack calibration, pack test Document Number Documents Available DS21766A PS402 Single Chip Battery Manager - Nickel Chemistries Data Sheet (IC Products) DS40234A PS041 PowerInfo Configuration Interface Product Brief DS40237A PS042 PowerCal Calibration Platform Data Sheet (Development Tool Documentation)
2003 Microchip Technology Inc. Preliminary DS21768A-page 7 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 and PowerSmart are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. Accuron, PowerTool, SmartSensor, SmartShunt, SmartTel, PowerCal and PowerInfo 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. © 2003, Microchip Technology Incorporated. Printed in the U.S.A., All Rights Reserved. Printed on recycled paper.
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