MICROCHIP PS2070

PS2070
PS200 Switch Mode Charger Evaluation Board
Features
• Complete PS200 Battery Charger application
circuit
• Direct connection to Microchip’s PowerInfo™ 2
(PS051) interface board and PowerCal™ 2
(PS052) calibration board
• Configure PS200 with PS020 PowerTool™ 200
PC software
• Change or upgrade firmware with In-Circuit Serial
Programming™ (ICSP™)
• Evaluate charger circuits with:
- Voltage max: 16.8V
- Current max: 2.0A
• Overall mechanical dimensions:
- 2.5 W x 4.0 L (inches)
- 63.5 W x 101.6 L (millimeters)
 2005 Microchip Technology Inc.
Ordering Information
Part Number
Description
PS2070
PS200 Charger Evaluation Board and
PS020 PowerTool™ 200 Software
PS2070EV
PS2XX Charger Evaluation Board,
PS051 Configuration Interface and
PS020 PowerTool™ 200 Software
DS21927A-page 1
PS2070
1.0
PRODUCT OVERVIEW
The PS2070 evaluation board is a complete charger
evaluation circuit subsystem based on the Microchip
PS200 charge controller. The board is designed to
operate with a rechargeable battery pack consisting of
lithium based, nickel based or lead acid cells. The
board includes the Microchip PS200 battery monitor IC
in a socket, a 100 mOhm sense resistor and power
components to enable charging currents to a maximum
of 2.0A.
2.0
GENERAL SETUP
The Microchip PS2070 evaluation board plugs directly
into a PowerInfo 2 interface board or PowerCal 2
calibration board. These development tools, connected
to a PC running PowerTool™ 200 (PS020) development software, form a complete PS200 battery charger
evaluation environment. The information that follows
will guide you through the setup of the various features
available. Please refer to the PowerInfo 2 or
PowerCal 2 data sheet for information on setting up
those products.
2.1
Connectors
• JBat – Battery input connector. The battery pack
to be charged is connected here. Looking into the
connector on the board, the pins from left to right
are:
- BAT+: Battery pack positive
- CLK: SMBus clock
- DTA: SMBus data
- TMP: Temperature
- GND: Battery pack negative
• PHost – Charger host interface. The PowerInfo 2
or PowerCal 2 is connected here. Looking into the
connector on the board, the pins from left to right
are:
- GND: Battery pack negative
- TMP: Temperature
- DTA: SMBus data
- CLK: SMBus clock
- BAT+: Battery pack positive
• J1 – In-Circuit Serial Programming (ICSP)
interface. The PS200 Flash memory can be
reprogrammed via this interface. This is only
necessary to upgrade to a newer firmware
revision or install firmware for a different
rechargeable chemistry.
• J3 – Charger DC power supply input. Input voltage range is 18 to 22 VDC. The supply must be
current limited or fused to a maximum of 2.5A.
DS21927A-page 2
2.2
Jumpers
• JP2 – Jumper to configure board for standard
operation with PS200 pin 2 (LED 2) connected to
the red LED or connected to PHost CLK for
communication with PowerTool 200 PC software.
Jumper Position
1-2
2-3
PS200 pin 2 to Red LED
X
O
PS200 pin 2 to PHost CLK
O
X
Legend: O = open, X = connect
• JP18 – Jumper to disconnect the overvoltage
protection divider from PS200 pin 18 (VOVP). This
allows pin 18 to be used for ICSP.
Jumper Position
1-2
Disable VOVP (Enable ICSP™)
O
Enable VOVP input
X
Legend: O = open, X = connect
• JP19 – Jumper to disconnect the temperature
divider from PS200 pin 19 (TEMP). This allows
pin 19 to be used for ICSP.
Jumper Position
1-2
Disable TEMP (Enable ICSP™)
O
Enable TEMP input
X
Legend: O = open, X = connect
• OPV – Jumper to configure overvoltage protection
(OVP) limit.
Jumper Position
1-8
2-7
3-6
4-5
(1 Cell) (2 Cells) (3 Cells) (4 Cells)
OVP 4404 mV
X
O
O
O
OVP 8808 mV
O
X
O
O
OVP 13200 mV
O
O
X
O
OVP 17640 mV
O
O
O
X
No OVP limit
O
O
O
O
Legend: O = open, X = connect
 2005 Microchip Technology Inc.
PS2070
• VIN – Jumper to configure voltage sense scaling
factors. The values indicate the maximum battery
voltage.
1-8
2-7
3-6
4-5
(1 Cell) (2 Cells) (3 Cells) (4 Cells)
5V
X
O
O
O
10V
O
X
O
O
15V
O
O
X
O
16.8V
O
O
O
X
Legend: O = open, X = connect
Configuration for Lithium Pack
Chemistries
Before attaching the lithium battery pack, please insure
that jumpers OVP and VIN are properly configured for
the maximum pack voltage. Attach the battery pack to
the JBat connector by attaching the top of the pack
(positive) to the left most pin (looking into the connector) and the bottom of the pack (negative) to the right
most pin.
2.4
Configuration for Lead Acid
Chemistries
Lead acid configuration will be updated when firmware
is available.
Jumper Position
2.3
2.5
Configuration for Nickel Pack
Chemistries
3.0
FUNCTIONAL DESCRIPTION
3.1
PS2070 Switch Mode Charger
Evaluation
The Switch Mode Charger Evaluation Board includes a
simple buck topology charger using the PS200 IC. The
PS200 monitors the battery to determine its status. The
control is a dual loop design with hardware based
current feedback control and firmware based voltage
feedback control. The hardware is configured as a
constant current loop, controlling the Pulse-Width
Modulator (PWM). The firmware sets the current level by
adjusting the PWM signal at PS200 pin 5 (CTRLOUT).
The firmware also measures the voltage and dynamically adjusts the current to maintain the fully charged
constant voltage value. Please refer to the “PS200 Data
Sheet” for details on configuring the PS200.
Overvoltage protection – the PS200 provides
overcharge protection. This circuit can be disabled by
leaving all OVP jumper positions open. JP18 should
still be connected.
Rechargeable nickel based battery packs can be
attached to the PS2070. Before attaching battery cells,
please insure that jumpers OVP and VIN are properly
configured for the maximum pack voltage. Attach the
battery pack to the JBat connector by attaching the top
of the pack (positive) to the left most pin (looking into
the connector) and the bottom of the pack (negative) to
the right most pin.
 2005 Microchip Technology Inc.
DS21927A-page 3
1.5K
1.5K
R2
R10
1
2
3
4
5
A1
B1
A2
B2
A3
B3
A4
B4
A5
B5
PHost
INVERTED
COMBICON
CONNECTOR
GND
TMP
DTA
CLK
BAT+
PowerInfo™/PowerCal™
HOST INTERFACE
R5/R9/C9 FORM A LOW-PASS FILTER WITH A
4.7 MILLISECOND TIME CONSTANT.
CTRLOUT IS COMPARE OUTPUT, WHICH IS
A FIRMWARE CONTROLLED PWM THAT SETS
CURRENT LEVEL. R5/R9/C9 SCALE AND
FILTER THE VOLTAGE FROM CTRLOUT,
FOR APPLICATION TO OP1.
FIRMWARE CURRENT-CONTROL OUTPUT:
WHEN BAND GAP IS PROPERLY TRIMMED,
VDD IS SET AT 5.000 VDC.
RED LED
GRN LED
VDD
R9
20.0K
JP2
1
2
3
C1
100 nF
18
(SIP)
OP1
120 nF
10 nF C7
CP2
PS200
DUT
CP1
17
HARDWARE FEEDBACK TO PWM:
OP1 IS ERROR AMP. R7/R8/C7/C8 ARE
LOOP COMPENSATION COMPONENTS.
1.27K
C8
LOOPIN
R7
1 2
JP18
VREF
CTRLOUT
CTRLIN
VSS
VDD
MCLR
20.0K
8
5
9
20
1
4
LED2
R8
FDBK
20.0K
R12
R5
20.0K
C9
470 nF
CTRL
1.5K
R4
2
LED1
1
2
3
4
5
6
10
-
RST
JP1
C18
4.7 µF
3
13
12
IN
LKDS
J3
OUT
OUT
7
6
POWER
MOSFET
DRIVER
OP2/R13/R14:
CURRENT SCALING.
SET FOR RANGE
OF 0-2586 mA
(2.53 mA/BIT).
47
INTP
R3
4
D1
MBRS340
SNTP
C22
4.7 µF
MBRS340
D2
R30
PSTP
10.0K
30.9K
20.5K
10.5K
232
10.0K
R18
R24
R23
R22
R21
137K
100K
63.4K
26.7K
R34
R33
R32
R31
VIN
4 5
3 6
2 7
1 8
OVP
4 5
3 6
2 7
1 8
PGND2
R40:
CURRENT
SENSE
RESISTOR
PGND
0.100
R40
BAT-
OUTP
BUCK
CONVERTER
POWER
SECTION
TEMP
4404 mV (JUMPER 1-8)
8808 mV (JUMPER 2-7)
13200 mV (JUMPER 3-6)
17640 mV (JUMPER 4-5)
BAT+
BAT+
CLK
DTA
TMP
GND
1
2
3
4
5
JBat
5-PIN RIGHT-ANGLE COMBICON
BATTERY INTERFACE CONNECTOR.
(MATES WITH PSX070 PCBs)
1 CELL: 4.969 mV/BIT (JUMPER 1-8)
2 CELL: 9.971 mV/BIT (JUMPER 2-7)
3 CELL: 15.01 mV/BIT (JUMPER 3-6)
4 CELL: 20.18 mV/BIT (JUMPER 4-5)
VOLTAGE SENSE SCALING FACTORS:
(VIN HEADER)
JUMPER ONLY ONE PIN PAIR AT A TIME
NO OVP -- LEAVE JUMPER OFF HEADER.
1 CELL:
2 CELL:
3 CELL:
4 CELL:
OVP TRIP POINT SELECTION:
(OVP HEADER)
JUMPER ONLY ONE PIN PAIR AT A TIME
FOR REVISION HISTORY, SEE 826196 CHANGE LOG
EVALUATION/TEST BOARD FOR PS200
C21
4.7 µF
68UH
L1
Q1
NDS9435A
D2 PREVENTS
REVERSE CURRENT
WHEN CHARGER
IS TURNED OFF.
INPUT VOLTAGE RANGE: 18 TO 22 VDC
SUPPLY MUST BE CURRENT LIMITED
OR FUSED AT A MAXIMUM OF 2.5A.
U1
TC4431COA
C23
4.7 µF
CHARGER DC POWER SUPPLY INPUT
(WITH POWER INDICATOR).
RIGHT-ANGLE COMBICON CONNECTOR.
R6/C16/D6 CONVERT 400 kHz PWM OUTPUT
TO RAMP WAVEFORM, WHICH IS FED BACK
TO CP2 AND COMPARED TO ERROR AMP
SIGNAL TO DETERMINE PWM DUTY CYCLE.
CHGFBK
1.00K
R13
D6
BAT54
C6
100 nF
BATID
2
3
620
R1
R19
10.0K
R11
POWER
1.5K
JP19
2 1
CHGOUT
R6
3.01K
16
6
11
15
19
C16
1.0 nF
C14
OPEN
19.6K
R14
IFBINA
IFBINB
CHGFBK
PWM
SHDN
CHGOUT
+
OP2
-
IFBOUT
BATID
TEMP
GND
C3
100 nF
VI
HVOUT
VIN
1
2
(MODULAR)
3
VOVP
+
J1
1
2
1
2
3
4
5
6
IFBOUT
14
R20
10.0K
8
1
VDD
VDD
GND
GND
SHDN
LOOPFBK
7
+
-
DS21927A-page 4
4
5
FIGURE 4-1:
1
2
3
4.1
5
6
7
8
4.0
+
ICSP™ INTERFACE CONNECTORS:
OPEN JP2 AND JP5 WHEN USING ICSP/ICD.
PS2070
BOARD DESCRIPTION
PCB schematics and bill of materials are included here
for completeness. Schematic and Bill of Materials are
also available in the PowerTool™ 200 PC software.
Schematic
PS2070 BOARD SCHEMATIC
 2005 Microchip Technology Inc.
PS2070
4.2
Bill of Materials
TABLE 4-1:
PS2070 BILL OF MATERIALS
Symbols
Description
Manufacturer
Manufacturer PN
Qty.
Raw PCB, PS2070
Microchip
04-826196 Rev. 2.1
1
C7
Capacitor, Ceramic, 120 nF, 25V, +/-10%,
X7R dielectric, 1206
Panasonic
ECJ-3VB1E124K
1
C9
Capacitor, Ceramic, 470 nF, 25V, +/-10%,
X7R dielectric, 1206
Murata
GRM319R71E474KA01D
1
C16
Capacitor, Ceramic, 1.0 nF, 50V, +/-10%,
X7R dielectric, 1206
Panasonic
ECU-V1H102KBM
1
C1, C3, C6
Capacitor, Ceramic, 100 nF, 50V, +/-10%,
X7R dielectric, 1206
BC Components
1206B104K500BT
3
C8
Capacitor, Ceramic, 10 nF, 50V, +/-10%,
X7R dielectric, 1206
Panasonic
ECU-V1H103KBM
1
C18,
C21-C23
Capacitor, Ceramic, 4.7 µF, 25V, +/-20%,
X5R dielectric, 1206
Panasonic
ECJ-3YB1E475M
4
GRNLED,
POWER
LED, clear green, 1206 package
Lumex
SML-LX1206GC-TR
2
REDLED
LED, clear red, 1206 package
Lumex
SML-LX1206SIC-TR
1
D1, D2
Schottky Diode, 40V, 3A, SMC package
On Semiconductor
International Rct.
Central Semi.
Central Semi.
MBRS340T3
MBRS340TR
CMSH3-40-PST
CMSH3-40L-PST
2
D6
Diode, Schottky, 200 mA/30V, SOT-23
Zetex
BAT54TA
1
JP2, JP18, JP19,
OVP, VIN
Connnector, shorting jumper, female, 2-position,
100 mil spacing, mates with 25 mil square pins,
15-microinch gold over nickel.
AMP
382811-6
5
J3
Header, pluggable terminal block, 5.08 mm pitch x 2
positions, 12A/250V, right-angle, closed end
Phoenix
1757242
1
JBat
Header, pluggable terminal block, 5.08 mm pitch x 5
positions, 12A/250V, right-angle, closed end
Phoenix
1757271
1
DUT
Socket, 20-pin DIP, 0.300" spacing, machine pin
Mill-Max
110-93-320-41-001000
1
J1
Connector, modular, 6-position/6-contact,
right-angle mount
AMP
520470-3
1
BAT-, GND,
PGND, PGND2
Test point, 0.125" OD, for 0.062" hole, black
Keystone
5011
4
BAT+
Test point, 0.125" OD, for 0.062" hole, red
Keystone
5010
1
BATID, CHGFBK,
CHGOUT, CTRL,
FDBK, IFBOUT,
TEMP, VI
Test point, 0.125" OD, for 0.062" hole, white
Keystone
5012
8
L1
Inductor, 68 µH, 1.8A, 130 mOhms DCR,
730 x 600 mil SMT package, -40°C to +85°C
Coilcraft
DO5022P-683
1
Bumper, hemispherical, 0.44" D x 0.20" H,
transparent plastic
3M
SJ-5303 (CLEAR)
4
OVP, VIN
Connector, break apart PCB header, straight,
3M
2-row x 36-pin, 100 x 100 mil spacing, 235 mil/100 mil/
145 mil length, 25 mil square pins, 10-microinch gold
929665-09-36-I
1
JP2, JP18, JP19
Connector, break apart PCB header, straight, 36-pin,
100 mil spacing, 235 mil/100 mil/145 mil length,
25 mil square pins, 10-microinch gold
929647-09-36-I
1
J3
Pluggable terminal block, 5.08 mm pitch x 2 positions, Phoenix
12A/250V
1757019
1
JBat
Pluggable terminal block, 5.08 mm pitch x 5 positions, Phoenix
12A/250V
1757048
1
 2005 Microchip Technology Inc.
3M
DS21927A-page 5
PS2070
TABLE 4-1:
Symbols
PS2070 BILL OF MATERIALS (CONTINUED)
Description
Manufacturer
Manufacturer PN
Qty.
PHost
Plug, inverted Combicon, 5.08 mm pitch x 5 positions, Phoenix
12A/250V
1786433
1
Q1
MOSFET, P-channel Enhancement mode, -30V, -5.3A, Fairchild Semi.
50 mOhms, 2.5W, SO-8, -55°C to +125°C
NDS9435A
1
R13
Resistor, film, 1206, 1%, 1.00 kOhms
Panasonic
ERJ-8ENF1001V
1
R7
Resistor, film, 1206, 1%, 1.27 kOhms
Panasonic
ERJ-8ENF1271V
1
R3, R18-R20
Resistor, film, 1206, 1%, 10.0 kOhms
Panasonic
ERJ-8ENF1002V
4
R22
Resistor, film, 1206, 1%, 10.5 kOhms
Panasonic
ERJ-8ENF1052V
1
R33
Resistor, film, 1206, 1%, 100 kOhms
Panasonic
ERJ-8ENF1003V
1
R34
Resistor, film, 1206, 1%, 137 kOhms
Panasonic
ERJ-8ENF1373V
1
R14
Resistor, film, 1206, 1%, 19.6 kOhms
Panasonic
ERJ-8ENF1962V
1
R5, R8-R9, R12
Resistor, film, 1206, 1%, 20.0 kOhms
Panasonic
ERJ-8ENF2002V
4
R23
Resistor, film, 1206, 1%, 20.5 kOhms
Panasonic
ERJ-8ENF2052V
1
1
R21
Resistor, film, 1206, 1%, 232 ohms
Panasonic
ERJ-8ENF2320V
R31
Resistor, film, 1206, 1%, 26.7 kOhms
Panasonic
ERJ-8ENF2672V
1
R6
Resistor, film, 1206, 1%, 3.01 kOhms
Panasonic
ERJ-8ENF3011V
1
R24
Resistor, film, 1206, 1%, 30.9 kOhms
Panasonic
ERJ-8ENF3092V
1
1
R32
Resistor, film, 1206, 1%, 63.4 kOhms
Panasonic
ERJ-8ENF6342V
R2, R4, R10, R11
Resistor, film, 1206, 5%, 1.5 kOhms
Panasonic
ERJ-8GEYJ152V
4
R30
Resistor, film, 1206, 5%, 47 ohms
Panasonic
ERJ-8GEYJ470V
1
R40
Resistor, metal strip, 2512, 1%, 0.100 ohms
Vishay
WSL2512-0.100-1%-R86
1
R1
Resistor, film, 2512, 5%, 620 ohms
Panasonic
ERJ-1TYJ621U
1
RST
Switch, SPST momentary tact, surface mount,
6 mm square, 4.3 mm high, 260 G-force
E-Switch
TL3301NF260QG
1
DUT
IC, Battery Charger Microcontroller, 20-pin DIP,
-40°C to +85°C
Microchip
PS200
1
U1
IC, Power MOSFET Driver circuit, 30V, 1.5A, inverting, Microchip
with UV lockout, SO-8, 0°C to +70°C
TC4431COA
1
DS21927A-page 6
 2005 Microchip Technology Inc.
PS2070
4.3
Mechanical Dimensions
Overall Dimensions: 2.5" W x 4.0" L
PS2070 DIMENSION DETAILS
2063 (mil)
C6
500
(mil)
D1
R30
R20
L1
C18
JP18
R19 R31
R32
R33
R34
R18
TEMP
PGND
U1
D6 C16
CHGFBK
C23
175
(mil)
R40
C21
D2
Q1
340
(mil)
C22
PSTP
SNTP
INTP
OUTP
1100 (mil)
2013 (mil)
188 (mil)
415
(mil)
250 (mil)
1
JBat
J3
R1
PGND2
R4
R14
R11
JP19
BATID R6
CHGOUT
POWER
C14
R13
1548 (mil)
REDLED R2
IFBOUT
2500 (mil)
6
J1
GRNLED R10
2000 (mil)
C1
R12
1
BAT+
C3
R8 C8
(J1 CENTER)
R21
R22
R23
R24
R3
VIN
R5
VI
JP2
DUT
1
C9
PHost
GND
FDBK
CTRL
JP1
1
RST
R12
C7
R7
R9
1000 (mil)
BAT- OVP
FIGURE 4-2:
3625 (mil)
4000 (mil)
FOR REVISION HISTORY, REFER TO 826196 CHANGE LOG.
BODY OF J4 IS 1080 MILS WIDE,
AND OVERHANGS BOARD EDGE BY 23 MILS.
 2005 Microchip Technology Inc.
DS21927A-page 7
PS2070
5.0
DEVELOPMENT TOOL
SUMMARY
5.1
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 5-1 summarizes
the development tool offering from Microchip to support
the PS2070. Please refer to the Microchip web site for
ordering information and design documentation
(including schematics) at www.microchip.com.
TABLE 5-1:
Reference Documents
This data sheet provides an overview of the PS2070
Switch Mode Charger Evaluation Board. For further
information on the PS200 and development tool operations, please refer to the following documents available
for download at www.microchip.com.
MICROCHIP DEVELOPMENT TOOL SUMMARY
Development Tool
Use
PowerInfo™ 2 hardware with
PowerTool™ 200 software (PS051)
Read and write register values, EEPROM programming
and test
PowerCal™ 2 hardware with
PowerTool™ 200 software (PS052)
Read and write register values, EEPROM programming, test
and calibration
TABLE 5-2:
Document
Number
MICROCHIP REFERENCE DOCUMENTS
Documents Available
DS21891
PS200 PowerSmart® Configurable Lithium Ion/Lithium Polymer Battery Charger Data Sheet
DS21815
PS051 PowerInfo™ 2 Configuration Interface Data Sheet
DS21817
PS052 PowerCal™ 2 Calibration Platform Data Sheet
DS21925
PS020 PowerTool™ 200 Development Software User’s Guide
DS21927A-page 8
 2005 Microchip Technology Inc.
PS2070
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED,
WRITTEN OR ORAL, STATUTORY OR OTHERWISE,
RELATED TO THE INFORMATION, INCLUDING BUT NOT
LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE,
MERCHANTABILITY OR FITNESS FOR PURPOSE.
Microchip disclaims all liability arising from this information and
its use. 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 Microchip intellectual property
rights.
Trademarks
The Microchip name and logo, the Microchip logo, Accuron,
KEELOQ, MPLAB, PIC, PICmicro, PowerSmart and
SmartShunt are registered trademarks of Microchip
Technology Incorporated in the U.S.A. and other countries.
SmartSensor and The Embedded Control Solutions Company
are registered trademarks of Microchip Technology
Incorporated in the U.S.A.
PowerCal, PowerInfo, PowerMate, PowerTool, Select Mode,
Smart Serial 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.
© 2005, Microchip Technology Incorporated. Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
 2005 Microchip Technology Inc.
DS21927A-page 9
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Fax: 86-591-8750-3521
Korea - Seoul
Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
Germany - Ismaning
Tel: 49-89-627-144-0
Fax: 49-89-627-144-44
Atlanta
Alpharetta, GA
Tel: 770-640-0034
Fax: 770-640-0307
Boston
Westford, MA
Tel: 978-692-3848
Fax: 978-692-3821
Chicago
Itasca, IL
Tel: 630-285-0071
Fax: 630-285-0075
Dallas
Addison, TX
Tel: 972-818-7423
Fax: 972-818-2924
Detroit
Farmington Hills, MI
Tel: 248-538-2250
Fax: 248-538-2260
Kokomo
Kokomo, IN
Tel: 765-864-8360
Fax: 765-864-8387
China - Hong Kong SAR
Tel: 852-2401-1200
Fax: 852-2401-3431
China - Shanghai
Tel: 86-21-5407-5533
Fax: 86-21-5407-5066
China - Shenyang
Tel: 86-24-2334-2829
Fax: 86-24-2334-2393
China - Shenzhen
Tel: 86-755-8203-2660
Fax: 86-755-8203-1760
China - Shunde
Tel: 86-757-2839-5507
Fax: 86-757-2839-5571
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
Taiwan - Kaohsiung
Tel: 886-7-536-4818
Fax: 886-7-536-4803
Taiwan - Taipei
Tel: 886-2-2500-6610
Fax: 886-2-2508-0102
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
England - Berkshire
Tel: 44-118-921-5869
Fax: 44-118-921-5820
Taiwan - Hsinchu
Tel: 886-3-572-9526
Fax: 886-3-572-6459
China - Qingdao
Tel: 86-532-502-7355
Fax: 86-532-502-7205
Los Angeles
Mission Viejo, CA
Tel: 949-462-9523
Fax: 949-462-9608
San Jose
Mountain View, CA
Tel: 650-215-1444
Fax: 650-961-0286
Toronto
Mississauga, Ontario,
Canada
Tel: 905-673-0699
Fax: 905-673-6509
10/20/04
DS21927A-page 10
 2005 Microchip Technology Inc.