AD AN5263

78M6631 Evaluation Board
User Manual
December 2011
Rev 1
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78M6631 Evaluation Board User Manual
UM_6631_077
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit
patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
M a x i m I n t e g r a t e d P r o d u c t s , 1 2 0 S a n G a b r i e l D r iv e , S u n n y v a le , C A 9 4 0 8 6 4 0 8- 7 3 7 - 7 6 0 0
 2011 Maxim Integrated Products
is a registered trademark of Maxim Integrated Products.
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78M6631 Evaluation Board User Manual
Table of Contents
1
Introduction ................................................................................................................................... 5
1.1
Package Contents ................................................................................................................ 5
1.2
System Requirements........................................................................................................... 5
1.3
Safety and ESD Notes .......................................................................................................... 6
1.4
Firmware Demo Code Introduction ........................................................................................ 6
1.5
Testing the 78M6631 Evaluation Board Prior to Shipping ...................................................... 6
2
Installation ..................................................................................................................................... 7
2.1
USB Driver Installation .......................................................................................................... 7
2.2
Confirm COM Port Mapping .................................................................................................. 8
2.3
Basic Connection Setup ........................................................................................................ 9
2.4
3-Phase System Connection ............................................................................................... 10
2.5
Burden Resistor Selection................................................................................................... 11
2.6
Jumpers and Switches Settings .......................................................................................... 12
2.7
Verify Serial Connection to the PC ...................................................................................... 17
2.8
In-Circuit Emulator (ICE) Adaptor ........................................................................................ 19
3
Schematics, Bill of Materials and PCB Layouts ......................................................................... 20
3.1
78M6631 Evaluation Board Schematics .............................................................................. 20
3.2
78M6631 Evaluation Board Bill of Materials ........................................................................ 23
3.3
78M6631 Evaluation Board PCB Layouts............................................................................ 25
4
Ordering Information ................................................................................................................... 26
5
Included Documentation ............................................................................................................. 26
6
Contact Information ..................................................................................................................... 26
Revision History .................................................................................................................................. 26
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Figures
Figure 1: 78M6631 Evaluation Board Connections................................................................................... 9
Figure 2: 78M6631 Evaluation Board Application Diagram (Wye 3-phase 4-wires) ................................. 10
Figure 3: ICE Adaptor ............................................................................................................................ 19
Figure 4: Attaching the ICE Adaptor....................................................................................................... 19
Figure 5: 78M6631 Evaluation Board Electrical Schematic (1 of 3) ......................................................... 20
Figure 6: 78M6631 Evaluation Board Electrical Schematic (2 of 3) ......................................................... 21
Figure 7: 78M6631 Evaluation Board Electrical Schematic (3 of 3) ......................................................... 22
Figure 8: 78M6631 Evaluation Board PCB Top View ............................................................................. 25
Figure 9: 78M6631 Evaluation Board PCB Bottom View ........................................................................ 25
Table
Table 1: Evaluation Board Jumpers and Terminal Blocks Description..................................................... 12
Table 2: J32 Evaluation Board SPI Connector ....................................................................................... 14
Table 3: J27 ICE Connector................................................................................................................... 14
Table 4: J21 External Battery Connector/Jumper ................................................................................... 14
Table 5: J36 Isolated UART signal Connector ........................................................................................ 14
Table 6: J33 Optional 5VDC External Supply ......................................................................................... 15
Table 7: J24 Digital I/O Connector ......................................................................................................... 15
Table 8: TP1 Digital I/O Connector ........................................................................................................ 15
Table 9: TP2 Digital I/O Connector ........................................................................................................ 15
Table 10: TP3 Digital I/O Connector....................................................................................................... 15
Table 11: J34 USB Connector ............................................................................................................... 16
Table 12: COM Port Setup Parameters.................................................................................................. 17
Table 13: 78M6631 Evaluation Board Bill of Materials............................................................................ 23
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78M6631 Evaluation Board User Manual
1 Introduction
The Teridian™ 78M6631 Evaluation Board is an electrical measurement unit for performing
measurements on a 3-phase AC system. It incorporates the 78M6631 power and energy measurement
device and connects to a PC through a USB cable such as the one provided in the demo kit. The
Evaluation Board demonstrates the capability of the 78M6631 energy meter controller chip for
measurement accuracy and overall system use.
The on-board 78M6631 is pre-programmed with the Firmware Demo
Code.
The 78M6631 energy measurement data and status is read back
over the serial UART interface using a text-based CLI command set (easy
manual operation is performed using HyperTerminal) and through the
serial peripheral interface (SPI).
Refer to the 78M6631 Firmware Description Document for details about
the firmware and the use of the CLI commands.
1.1 Package Contents
The 78M6631 Evaluation Board Demo Kit includes:
•
•
•
•
•
78M6631 Evaluation Board
USB Cable Assembly USB A-B 28/24 1.8M (Tyco/Amp 1487588-3)
In-Circuit Emulator (ICE) Adaptor
Three CTs
CD with documentation
1.2 System Requirements
The 78M6631 Evaluation Board requires use of a PC with the following features:
•
•
PC (1 GHz, 1 GB) with Microsoft Windows XP®, Windows Vista®, or Windows 7 operating systems,
equipped with USB port
Minimum 1024 x 768 video display resolution
Teridian is a trademark of Maxim Integrated Products, Inc.
Windows XP and Windows Vista are registered trademarks of Microsoft Corp.
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1.3 Safety and ESD Notes
EXERCISE CAUTION WHEN LIVE AC VOLTAGES ARE PRESENT!
Standard ESD precautions must be taken when handling electronic equipment. The
78M6631 contains ESD protected interfaces.
Do not connect test equipment, ICE emulators, or external development boards directly to the
78M6631 hardware. Damage to the 78M6631 and external equipment will occur due to the
78M6631’s “high side” reference topology. The 78M6631’s V3P3 (i.e., “high side”) is connected
directly to Neutral (Earth Ground) creating a ground reference disparity with any properly
grounded external equipment.
The board components and firmware settings are designed to operate with the following nominal AC
electrical ranges (per phase):
Voltage
Current
Line Frequency
110-240 V AC
10 mA – 20A
46-64 Hz
1.4 Firmware Demo Code Introduction
The Firmware Demo Code provides the following features:
•
•
Measurement data such as Watts, Volts, current, VAR, VA, phase angle, power factor, frequency,
date/time, and various alarm statuses. The measurements data of Voltage, current and power are
also available as fundamental and harmonics.
Control of alarm thresholds, calibration coefficients, temperature compensation, etc.
The following setup is used to facilitate performance evaluation between the user at the PC host and the
firmware code in the board:
•
The Command Line Interface (CLI) via HyperTerminal or comparable terminal emulator on a different
operating system. For information about the CLI, see the applicable Firmware Description Document.
The 78M6631 is shipped with Firmware Demo Code Revision 1.0 or later loaded in the 78M6631 chip and
included on the CD. The code revision can be verified by entering the command >i via the command line
interface. Firmware for the Demo Unit can be updated using either the Teridian TFP2 or an in-circuit
emulator such as the Signum Systems ADM51 (www.signum.com).
1.5 Testing the 78M6631 Evaluation Board Prior to Shipping
Before every 78M6631 Evaluation Board is shipped, the following procedures have been performed at the
factory:
•
Full Calibration – Precise energy source equipment is used to calibrate the current and voltage. The
temperature is also calibrated at the same time.
•
Accuracy Test – This “bench” level test ensures the energy accuracy is within ±0.5%.
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2 Installation
2.1 USB Driver Installation
This evaluation kit includes an isolated USB interface for serial communications with a PC. The FTDI USB
controller IC FT232R performs the USB functions. The FTDI Windows driver presents a virtual COM port
for enabling serial communications. Control of the 78M6631 Evaluation Board can be managed using a
terminal emulation program. The FTDI Windows driver is a certified driver for Windows XP, Windows
Vista, or Windows 7 operating systems.
1. Upon attaching the 78M6631 Evaluation Board to the PC, the Found New Hardware Wizard
automatically launches and installs the appropriate driver files. If your PC does not find the FTDI
driver files on its local hard disk drive, locate and reference the FTDI USB Driver and Utilities
subdirectory on the CD. The FT232R controller is powered from the USB cable and is active even
when no AC power is applied to the 78M6631 Evaluation Board.
Notes: If an older FTDI driver has been previously installed, it is recommended to remove the older
version before installing this newer FTDI driver. Execute the ftdiClean.exe utility from the FTDI
USB Driver and Utilities subdirectory.
For FTDI driver support on other operating systems, please check FTDI’s website at
(http://www.ftdichip.com/FTDrivers.htm).
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2.2 Confirm COM Port Mapping
1. Launch the Control Panel and click on the System icon.
2. The System Properties screen appears. Click on the Hardware tab. Click on Device Manager.
Under Ports (COM & LPT), look for the USB Serial Port assignment.
3. Take note of the COM port assignment for the USB Serial Port.
COM Port:
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2.3 Basic Connection Setup
Figure 1 shows the basic connections of the 78M6631 Evaluation Board for use with external equipment.
The 78M6631 Evaluation Board is powered through the USB cable. The same USB cable provides the
communications link between the host PC and the 78M6631 Evaluation Board.
The 78M6631 Evaluation Board accepts 120 VAC and 240 VAC (nominal) up to 300 VAC (max)
referenced to neutral.
Neutral / V3P3
Voltage Inputs
Current Inputs
(Differential)
USB Port
Auxiliary 5VDC
Supply Input
Figure 1: 78M6631 Evaluation Board Connections
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2.4 3-Phase System Connection
The 78M6631 Evaluation board supports both Wye (3-phase 4-wire) and Delta (3-phase, 3 wires)
configurations. The current transformers are not provided with the evaluation board and must be selected
by the customer. A burden resistor (12.4 Ω – value dependent on CT) can be connected on each phase
through dedicated jumpers. Particular attention must be placed in configuring the burden resistors as the
current transformers can generate high voltage if no burden resistor is present (or if its value is too high).
Figure 2 and 3 shows a connection diagram using external burden resistor, in this case the external
burden resistor can replace the on-board or used in parallel.
A
LOAD A
A
Neutral
B
B
C
AD
LO
Neutral
LO
AD
B
Optional
Optional
C
C
External Equipment
Optional
78M6631 Evaluation Board
J15
(VA)
J17
(VB)
J19
(VC)
J14
(V3P3)
J13 J10
J9
J5
(ICN) (ICP) (IBN) (IBP)
J4
J1
(IAN) (IAP)
Figure 2: 78M6631 Evaluation Board Application Diagram (Wye 3-phase 4-wires)
A
A
Optional
LOAD A-B
B
B
LOAD A-C
LOAD B-C
C
C
Optional
External Equipment
78M6631 Evaluation Board
J15
(VA)
J17
(VB)
J19
(VC)
J14
(V3P3)
J13 J10
(ICN) (ICP)
J1
J4
(IAN) (IAP)
J9
J5
(IBN) (IBP)
Figure 3: 78M6631 Evaluation Board Application Diagram (Delta 3-phase 3-wires)
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2.5 Burden Resistor Selection
The 78M6613 Evaluation Board does not include surface-mount current transformers (CTs). The CTs
included with the kit are externally attached to the evaluation board which has the correct value of burden
resistor on board..If using different CTs with the evaluation board, it is important to either disable the onboard burden resistor or change the burden resistor value for optimum signal magnitude in order to utilize
the full range of the ADC inputs (±250mVP-P).
The 78M6631 Evaluation Board provides a 4.99Ω burden resistor that can be inserted or excluded using
jumpers J2, J3, J6, J8, J11, and J12. Use the equation below to determine if the onboard burden resistor
can be used with the selected CT or if another value should be used.
At maximum load current (IMAX), the voltage built up across the burden resistor should not exceed 176
mVrms (±250mVP-P). It is useful to provide a voltage margin to accommodate transients above IMAX. For
various systems considerations, it may be necessary to select a burden resistor value lower than the
manufacturer’s recommended value. For most CTs, this will not pose a problem.
Example:
A CT with a turn ratio of 2000:1 yields a secondary current of 1/2000 of the primary current. Following
Ohm’s law, the resulting voltage V across the burden resistor R is:
 =

∗ 

where N is the turns ratio, ILoad is the primary load current and RBurden is the value of the burden
resistor.
The proper IMAX value should then be set in the relevant register and the CT must be calibrated for
optimal performance. The calibration includes gain adjustment and CT phase error adjustment. Refer to
the appropriate Firmware Description Document for register addresses, calibration commands, and other
information.
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2.6 Jumpers and Switches Settings
Table 1 describes the 78M6631 Evaluation Board jumpers and switches and their settings for different
configurations.
Table 1: Evaluation Board Jumpers and Terminal Blocks Description
Schematic
and
Silkscreen
Reference
Default
Setting
Description
J14
N/A
Terminal Block
Neutral Connection (this terminal block is directly
connected to the 3.3VDC supply (V3P3).
J1
N/A
Terminal Block
Current Input Phase A Positive (LNCINP1)
J4
N/A
Terminal Block
Current Input Phase A Negative (LNCINN1)
J5
N/A
Terminal Block
Current Input Phase B Positive (LNCINP2)
J9
N/A
Terminal Block
Current Input Phase B Negative (LNCINN2)
J10
N/A
Terminal Block
Current Input Phase C Positive (LNCINP3)
J13
N/A
Terminal Block
Current Input Phase C Negative (LNCINN3)
J2
2-3
Jumper
Current Input Phase A Configuration. Allows connection
of the on-board burden resistor R3 (4.99Ω) or connect
(reference) this input to 3.3V. See Section 2.5.
J3
2-3
Jumper
Current Input Phase A Configuration. Allows connection
of the on-board burden resistor R3 (4.99Ω) or connect
(reference) this input to 3.3V. See Section 2.5.
J6
2-3
Jumper
Current Input Phase B Configuration. Allows connection
of the on-board burden resistor R3 (4.99Ω) or connect
(reference) this input to 3.3V. See Section 2.5.
J8
2-3
Jumper
Current Input Phase B Configuration. Allows connection
of the on-board burden resistor R3 (4.99Ω) or connect
(reference) this input to 3.3V. See Section 2.5.
J11
2-3
Jumper
Current Input Phase C Configuration. Allows connection
of the on-board burden resistor R3 (4.99Ω) or connect
(reference) this input to 3.3V. See Section 2.5.
J12
2-3
Jumper
Current Input Phase C Configuration. Allows connection
of the on-board burden resistor R3 (4.99Ω) or connect
(reference) this input to 3.3V. See Section 2.5.
J15
N/A
Terminal Block
J17
N/A
Terminal Block
J19
N/A
Terminal Block
J16
Not
Inserted
Jumper
Voltage Input Phase A Configuration. Allows connection
of this input to 3.3VDC Supply (V3P3) if this Voltage Input
in not connected/not used.
J18
Not
Inserted
Jumper
Voltage Input Phase B Configuration. Allows connection
of this input to 3.3VDC Supply (V3P3) if this Voltage Input
in not connected/not used.
12
Use
Voltage Input Phase A. (LNVIN1).
Voltage Input Phase B. (LNVIN2).
Voltage Input Phase C. (LNVIN3).
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Schematic
and
Silkscreen
Reference
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78M6631 Evaluation Board User Manual
Default
Setting
Description
Use
J20
Not
Inserted
Jumper
Voltage Input Phase C Configuration. Allows connection
of this input to 3.3VDC Supply (V3P3) if this Voltage Input
in not connected/not used.
J26
2-3
Jumper
Selection of Delta or Wye configuration.
Position 1-2 Delta Configuration.
Position 2-3 Wye Configuration.
J7
Not
Inserted
Jumper
If not inserted the 78M6631 operates in normal condition,
if inserted the input V1 comparator (supply under-voltage
detection) is disabled, in this condition the WD Timer is
also disabled.
J21
1-2
J35
Inserted
Jumper
J22
Not
Inserted
Test Point
J23
Inserted
Jumper
Connection of LED1 (Red) if inserted.
J25
Inserted
Jumper
Connection of LED2 (Yellow) if inserted.
J28
Inserted
Jumper
Connection of LED3 (Yellow) if inserted.
J29
Inserted
Jumper
Connection of LED4 (Green) if inserted.
J31
Inserted
Jumper
Connection of LED5 (Green) if inserted.
J32
N/A
Connector
SPI Port Connector – Refer to Table 2.
J27
N/A
Connector
In-Circuit Emulator Connector – Refer to Table 3.
J21
1-2
J36
N/A
Connector /Test
Point
J33
N/A
Connector
External 5VDC supply – Refer to Table 6.
J24
N/A
Connector
Digital I/O Connector – Refer to Table 7.
J34
N/A
Connector
USB Connector – Refer to Table 11.
Jumper/Connector VBAT input configuration. Use as connector for external
battery or if battery not present set position 1-2.
UART Rx Connection. Remove J35 if external transceiver
is used. Insert J35 if the on-board USB/UART transceiver
is used.
I2C bus test point.
Pin 1 = SCDC (Serial Clock).
Pin 2 = SDATA (Data).
Jumper/Connector External Battery Connector/Jumper – Refer to Table 4.
UART External Transceiver/Test Point – Refer to Table 5.
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J32 SPI Connector
This connector allows the connection of the SPI interface. This connector is not isolated.
Table 2: J32 Evaluation Board SPI Connector
Position
Signal
Description
1
V3P3D
3.3VDC Supply
2,4,6,8,10 GND
Ground
3
PCLK
SPI CLOCK (Input)
5
PSDI
SPI Data In (Input)
7
PSDO
SPI Data Out(Output)
9
PCSZ
SPI Slave Select (Input)
J27 In-Circuit Emulator (ICE) Connector
This connector allows the connection of the In-Circuit Emulator. Refer to Section 2.6 for ICE connector
adapters and ICE selection.
Table 3: J27 ICE Connector
Position
Signal
Description
1
V3P3D
3.3VDC Supply
2
RXTX
DATA (Input/Output)
3
ERST
Emulator Reset (Input)
5
GND
Ground
6
ICEEN
ICE Port Enable (Input)
J21 External Battery Connector/Jumper
This Jumper/Connector allows the connection of the VBAT (78M6631 Battery Supply Input) to an external
battery backup. If an external battery in not required/not present, the jumper must be set in position 1-2 to
connect the VBAT input to the on-board 3.3VDC (V3P3) supply.
Table 4: J21 External Battery Connector/Jumper
Position
Signal
Description
1
V3P3
3.3VDC Supply
2
VBAT
DATA (Input/Output)
3
GND
Ground
J36 Isolated UART Signal Connector
This connector allows an external transceiver to be connected or to provide test points to monitor the
UART signals. These signals are galvanically isolated from the 78M6631 circuitry. Jumper R35 is used to
disconnect the USBRX signal in case an external transceiver is used, in order to avoid contention.
Table 5: J36 Isolated UART signal Connector
14
Position
Signal
Description
1
ISO5V
Isolated 5VDC Supply
2
URX
UART Rx
3
UTX
UART Tx
4
USBGND
Isolated Ground
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J33 Optional 5VDC External Supply
The 78M6631 Evaluation Board is powered through the USB port (5VDC), however in case the USB port
is not connected, the evaluation board can be powered using an external 5VDC power supply, through
the connector J33.
Table 6: J33 Optional 5VDC External Supply
Position
Signal
Description
1
USB5V
Isolated 5VDC Supply
2
ISOGND
Isolated Ground
3
USBGND
Isolated Ground
J24 Digital I/O Connection
The 78M6631 has several available general purpose digital I/O pins. The following tables show the
connection and use of these I/O’s in the 78M6631 Evaluation Board.
Table 7: J24 Digital I/O Connector
Position
Signal
Description
1
V3P3
3.3VDC Supply
2
DIO29
General Purpose Digital I/O
3
DIO30
General Purpose Digital I/O
4
DIO45
General Purpose Digital I/O
5
DIO47
General Purpose Digital I/O
6
DIO51
General Purpose Digital I/O
7
DIO53
General Purpose Digital I/O
8
DIO55
General Purpose Digital I/O
9
GND
Ground
TP1, TP2, TP3 Digital I/O Connections
The 78M6631 provides these additional general purpose digital I/O pins. The following tables show the
connection and use of these I/O’s in the 78M6631 Evaluation Board.
Table 8: TP1 Digital I/O Connector
Position
Signal
Description
1
V3P3
3.3VDC Supply
2
DIO8
General Purpose Digital I/O
Table 9: TP2 Digital I/O Connector
Position
Signal
Description
1
V3P3
3.3VDC Supply
2
DIO9
General Purpose Digital I/O
Table 10: TP3 Digital I/O Connector
Rev 1
Position
Signal
Description
1
V3P3
3.3VDC Supply
2
DIO6
General Purpose Digital I/O
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J34 USB Port Connection
The 78M6631 Evaluation Board is equipped with an USB interface. The interface allows the
communication to a host (PC etc.) and to provide supply power to the evaluation board.
Table 11: J34 USB Connector
Position
Signal
Description
1
USB5V
3.3VDC Supply
2
USBDM
General Purpose Digital I/O
3
USBDP
General Purpose Digital I/O
4, 5,6
USBGND
General Purpose Digital I/O
CT Burden Resistor Configuration
The 78M6631 Evaluation Board requires use of external CTs. Terminal blocks J1/J4, J5/J9, J10/J13,
provide the wiring connectors for these CTs. A burden resistor must be used with each CT. The CT’s
manufacturer provides the recommended burden resistor value. The 78M6631 Evaluation Board provides
a 12.4 Ω burden resistor for each pair of terminal blocks. Jumpers are provided for each pair of terminal
blocks for connection to these on-board burden resistors. Additionally, the jumpers provide connection to
V3P3 to establish a reference point for the CT.
If external burden resistors are used, install the following jumpers:
J3-1/J3-2
J8-1/J8-2
J12-1/J12-2
J2, J6, J11 have no jumpers.
If the on-board resistors are used, install the following jumpers:
J3-1/J3-2
J3-3/J3-4
J8-1/J8-2
J8-3/J8-4
J12-1/J12-2
J12-3/J12-4
J2-2/J2-3
J6-2/J6-3
J11-2/J11-3
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2.7 Verify Serial Connection to the PC
After connecting the USB cable from the 78M6631 Evaluation Board to the host PC, start the
HyperTerminal application (or another suitable communication program) and create a session using the
communication parameters shown in Table 1.
Table 12: COM Port Setup Parameters
Setup Parameter
78M6631
Port speed (baud)
38400
Data bits
Parity
Stop bits
Flow control
8
None
1
None
HyperTerminal can be found in Windows by selecting Start All Programs Accessories 
Communications HyperTerminal. The connection parameters are configured by selecting File 
Properties. The New Connection Properties menu appears.
Select
COM Port
Select the appropriate COM port and click Configure. The COMn Properties menu appears.
Note that port parameters can only be adjusted when the connection is not active. It may be necessary to
click the Disconnect Button to disconnect the port.
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FTDI COM Port Trouble-Shooting
If the FTDI device driver did not install properly, there would be no assigned COM port
number for the FTDI controller. Repeat the USB Driver Installation, see Section 2.1.
Microsoft Windows may associate a Ball Point device to the FTDI USB controller. When this
occurs a FTDI device COM port assignment is available via HyperTerminal but there is no
communications data. Verify if a Ball Point device has been added to the “Human Interface
Devices” via the Device manager. Refer to Section 2.2 for access to the Device Manager. If
a Ball Point device exists, delete it and unplug and replug the evaluation board’s USB cable.
CLI measurement can be displayed in two different formats: decimal or hex. Both formats are returned as
ASCII character strings. The following figure uses CLI commands to return the same data presented in
the Auto-Reporting mode.
Disconnect
Use “?” for Decimal format
Use “$” for Hex format
Refer to the applicable Firmware Description Document for a complete description of available CLI
commands and their invocation usage.
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78M6631 Evaluation Board User Manual
In-Circuit Emulator (ICE) Adaptor
The 78M6631 firmware (stored in internal flash memory) can be updated to accommodate program
enhancements. Use the Signum ADM51 or the Teridian TFP-2 to download new firmware to the
78M6631. The supplied ICE Adaptor is required to interface the flat ribbon cable (provided with the
ADM51 or TFP-2) to the 78M6631 Evaluation Board.
Figure 3: ICE Adaptor
Figure 4 shows how to attach the ICE Adaptor to the 78M6631 Evaluation Board. Please make note of
the orientation of the ICE Adaptor as to how it attaches to the 78M6631 Evaluation Board (V3P3 ICE
Adaptor pin connects to the +V3P3 Evaluation Board pin).
Figure 4: Attaching the ICE Adaptor
Disconnect the 78M6631 Evaluation Board from live AC voltages before connecting the
ADM51 or TFP-2. An Earth ground disparity and high AC voltages are present on the
78M6631 Evaluation Board when it is connected to the AC outlet. Equipment damage
to the 78M6631, ADM51/TFP-2 and attached PC may occur when live AC voltages are
present on the 78M6631 Evaluation Board. Refer to the 78M6631 Safety Precautions
Applications Note for additional information.
It is recommended to always use the supplied flat ribbon cable. Do not use discrete wires in place of the
flat ribbon. Poor signal integrity will cause flash memory programming errors. Additional adaptors and flat
ribbon cables can be ordered through Maxim’s Teridian customer service.
Power to the 78M6631 is provided via the USB cable. Attach the USB cable during programming.
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3 Schematics, Bill of Materials and PCB Layouts
This section includes the schematics, bill of materials and PCB layouts for the 78M6631 Evaluation Board.
3.1
78M6631 Evaluation Board Schematics
.
V3P3
J1
CON4
STERM
MS 534-8191
To external
LINE1 CT
J4
CON4
STERM
MS 534-8191
1
2
3
4
R1
10K
0603
LNCINP1
J2
CON4
SIP100P4
1
2
3
4
C1
0.1uF
0603
C2
1000pF
0603
C3
0.1uF
0603
C4
1000pF
0603
LNCURP1
V3P3
V3P3
J3
CON4
SIP100P4
1
2
3
4
R2
750
0603
1
2
3
4
R3
4.99 1%
1210
MS 660-SR732ETTE4R99F
V3P3
V3P3
LNCINN1
R4
10K
0603
R5
750
0603
LNCURN1
V3P3
J9
CON4
STERM
MS 534-8191
1
2
3
4
J8
CON4
SIP100P4
1
2
3
4
R7
750
0603
C5
0.1uF
0603
V3P3
C6
1000pF
0603
42
LNCURP2
C7
10uF
0805
445-3458-1-ND
V3P3
V3P3
1
2
3
4
R8
4.99 1%
1210
MS 660-SR732ETTE4R99F
V3P3
V3P3
LNCINN2
R10
10K
0603
R12
750
0603
C10
0.1uF
0603
C11
1000pF
0603
1
2
3
4
J11
CON4
SIP100P4
To external
LINE3 CT
J13
CON4
STERM
MS 534-8191
Neutral/White
LINE1
LINE2
LINE3
J14
CON4
STERM
MS 534-8191
J15
CON4
STERM
MS 534-8191
J17
CON4
STERM
MS 534-8191
J19
CON4
STERM
MS 534-8191
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
R14
10K
0603
LNCINP3
J12
CON4
SIP100P4
1
2
3
4
R15
750
0603
C13
0.1uF
0603
C14
1000pF
0603
47
46
LNCURP3
45
44
43
V3P3
V3P3
1
2
3
4
R16
4.99 1%
1210
MS 660-SR732ETTE4R99F
IAP
IAN
LNCINN3
R17
10K
0603
R18
750
0603
C17
0.1uF
0603
V3P3
C18
1000pF
0603
V1
C12
100pF
0603
ICP
ICN
VA
VB
VC
U1-1
78M6631-56TQFN
TQFN56
LNCURN3
V3P3
V3P3
XIN
1
2
J7
CON2
SIP100P2
V1
53
IBP
IBN
V3P3
V3P3
C9
NC
0603
R9
16.9K 1%
0603
GNDA
J10
CON4
STERM
MS 534-8191
VREF
52
GND
49
48
V3P3
VREF
GND
51
50
LNCURN2
V3P3A
C8
0.1uF
0603
54
GND
R11
2K
0603
C15
33pF
0603
XIN
R13
20.0K 1%
0603
GND
1
J6
CON4
SIP100P4
To external
LINE2 CT
R6
10K
0603
LNCINP2
Y1
32.768KHz
CM200SV2
535-9166-1-ND
XOUT
56
GND
4
1
2
3
4
XOUT
C16
9pF
0603
41
J5
CON4
STERM
MS 534-8191
GND
V3P3
MT1
LNVIN1
LNVIN2
LNVIN3
R20
R21
1M 0.1%
1M 0.1%
J16
1206W
CON2
1206W
MS 660-RN732BTTD1004B25 SIP100P2
R23
R24
1M 0.1%
1M 0.1%
J18
1206W
CON2
1206W
MS 660-RN732BTTD1004B25 SIP100P2
R27
R26
1M 0.1%
1M 0.1%
J20
1206W
CON2
1206W
MS 660-RN732BTTD1004B25 SIP100P2
V3P3
1
2
V3P3 R19
750 0.1%
0603
C19
0.1uF
0603
C20
1000pF
0603
MT2
MTGPS.PRT
MS 561-PS500A
MT3
MTGPS.PRT
MS 561-PS500A
MT4
MTGPS.PRT
MS 561-PS500A
LNVOLT1
MTGPS.PRT
MS 561-PS500A
V3P3
1
2
V3P3 R22
750 0.1%
0603
C21
0.1uF
0603
C22
1000pF
0603
V3P3
1
2
V3P3 R25
750 0.1%
0603
C23
0.1uF
0603
C24
1000pF
0603
LOGO1
LOGO2
1
1
LNVOLT2
Warning
LNVOLT3
Teridian-Maxim
Teridian Maxim-IC
Title
78M6631-56 Three Phase Dev elopment Board
Size
B
Document Number
78M6631P56EBv 1
Date:
Tuesday , March 15, 2011
Rev
1
Sheet
1
of
3
Figure 5: 78M6631 Evaluation Board Electrical Schematic (1 of 3)
20
Rev 1
UM_6631_077
78M6631 Evaluation Board User Manual
.
4
2
1
ICEEN
Must use isolated USB hub
GND
29
C30
1000pF
0603
ERXTX
ETCLK
ERST
ICEE
9
5
32
33
34
DIO6
DIO8
DIO9
CKTEST
TMUXOUT
35
R38
10K
0603
R30
10K
0603
V3P3
TP1
TP2
TP3
CON2
CON2
CON2
SIP100P2 SIP100P2 SIP100P2
TX
RX
V3P3D
D/Y
R46
100
0603
U1-2
78M6631-56TQFN
TQFN56
GND
GNDD4
GNDD5
GNDD6
GNDD7
DY
6
37
55
16
17
18
TXD
RXD
DIO11
PCLK
PSDI
PSDO
PCSZ
7
20
11
12
GND
V3P3
GND
V3P3D
GND
CKTST
TMUX
GNDD1
GNDD2
GNDD3
1
2
3
DIO6
DIO8
DIO9
R39
10K
0603
2
1
V3P3
TXD
RXD
J26
CON3
SIP100P3
DIO29
DIO30
DIO45
DIO47
DIO51
DIO53
DIO55
DIO17
3
23
40
1
2
3
4
1
3
5
7
9
PCLK
PSDI
PSDO
PCSZ
2
4
6
8
10
DIO24
J24
CON9
SIP100P9
DIO25
J23
CON2
SIP100P2
2
1
R34
470
0603
LED1
Red
LED
SIP100P2
MS 606-4300H1LC
V3P3
R35
470
0603
J25
CON2
SIP100P2
J28
CON2
SIP100P2
LED2
Yellow
LED
SIP100P2
MS 606-4300H7LC
2
1
DIO3
14
36
13
25
24
19
21
22
15
26
27
28
R37
330
0603
GND
J30
CON4
SIP100P4
GND
V3P3
R36
470
0603
2
1
RXTX
TCLK
ERST
U2
SER EEPROM
SO8-NARROW
24LC01BT-I/SNCT-ND
1
2
3
4
5
6
7
8
9
J27
ICE
SIP100P6
1
2
3
4
LED3
Yellow
LED
SIP100P2
MS 606-4300H7LC
V3P3
R40
470
0603
J29
CON2
SIP100P2
2
1
V3P3
1
2
3
4
5
6
A0
A1
A2
GND
LED4
Green
LED
SIP100P2
MS 606-4300H5LC
V3P3
R41
470
0603
J31
CON2
SIP100P2
2
1
8
10
DIO3
DIO11
DIO17
DIO24
DIO25
DIO29
DIO30
DIO45
DIO47
DIO51
DIO53
DIO55
GND
SDCK
SDA
30
31
VCC
WP
SCL
SDA
GND
R31
1K
0603
2
1
GND
DIO4/SDK
DIO5/SDATA
8
7
6
5
2
1
RESET
GND
R29
10K
0603
2
1
39
C28
0.1uF
0603
R28
10K
0603
J22
CON2
SIP100P2
1
2
2
1
RESET
SW1
R32
EP11A
1K
EP11A
0603
MS 611-EP11-003
38
GND
V3P3D
V3P3D
C29
0.1uF
0603
GND
VBAT
C27
0.1uF
0603
V3P3D
2
1
VBAT
V3P3SYS
GND
R33
100
0603
GND
3
2
1
V3P3
2
1
V3P3
External Battery
C25
0.1uF
0603
V3P3D
2
1
C26
0.1uF
0603
J21
CON3
SIP100P3
LED5
Green
LED
SIP100P2
MS 606-4300H5LC
V3P3
Status LEDs
J32
SPI
DIP100P10
Not Isolated
GND
R42
10K
0603
GND
Teridian Maxim-IC
Title
78M6631-56 Three Phase Dev elopment Board
Size
B
Document Number
78M6631P56EBv 1
Date:
Tuesday , March 15, 2011
Rev
1
Sheet
2
of
3
Figure 6: 78M6631 Evaluation Board Electrical Schematic (2 of 3)
Rev 1
21
78M6631 Evaluation Board User Manual
UM_6631_077
.
C31
0.1uF
0603
1
2
3
4
5
6
R43
0
0603
4
20
USB5V
USBDM
USBDP
16
15
8
19
C38
4.7uF
1206P
24
VCCIO
VCC
RXD
TXD
USBDM
USBDP
NC1
RESETB
RTS
CTS
DTR
DSR
DCD
RI
NC2
1.5M A/B White Cable
Mouser 571-1487588-2
17
0603
3V3OUT
25
7
18
21
26
C39
0.1uF
OSCI
OSCO
AGND
GND1
GND2
GND3
TEST
27
28
CBUS0
CBUS1
CBUS2
CBUS3
CBUS4
5
1
3
11
2
9
10
6
23
22
13
14
12
U3
R44
0
0603
USBTX
USBRX
1
2
J34
USB-B
MS 154-2442-E
USBB
1
VIN
GND
5
VOUT
C32
10uF
0805
445-3458-1-ND
4
VGND
J35
CON2
SIP100P2
J36
CON4
SIP100P4
1
2
3
4
V3P3
ISO5V
UTX
URX
1
2
3
4
R45
10K
0603
V1
V2
VOA VIA
VIB VOB
ND1 G2
8
7
6
5
2
3
4
C33
0.1uF
0603
C36
0.1uF
0603
3
6
7
8
J33
Weco Tst
RAPC712A
MS 502-RAPC712
2
VIN
SI
EN
CT
VOUT
GND
1
2
3
1
NC1
NC2
NC3
NC4
Optional +5V wall-wart
VR1
MAX5091BASA+
MAX5091BASA+-ND
SOIC8
SO
RES
V3P3
8
7
6
C34
10uF
0805
445-3458-1-ND
5
VR2
VBT1-5V
VBT1
102-1397-2-ND
C35
0.1uF
0603
GND
C37
0.1uF
0603
GND
TXD
RXD
TXD
RXD
GND
U4
ADUM3201
ADUM3201
ADUM3201ARZ-ND
768-1007-1-ND
28-SSOP
USBGND
Isolated USB Interface
Teridian Maxim-IC
Title
78M6631-56 Three Phase Dev elopment Board
Size
B
Document Number
78M6631P56EBv 1
Date:
Tuesday , March 15, 2011
Rev
1
Sheet
3
of
3
Figure 7: 78M6631 Evaluation Board Electrical Schematic (3 of 3)
22
Rev 1
UM_6631_077
3.2
78M6631 Evaluation Board User Manual
78M6631 Evaluation Board Bill of Materials
Table 13: 78M6631 Evaluation Board Bill of Materials
Item
Quantity
Reference
Part
PCB Footprint
Manufacturer PN
Manufacturer
1
21
C1,C3,C5,C8,C10,C13,C17,
C19,C21,C23,C25,C26,C27,
C28,C29,C31,C33,C35,C36,
C37,C39
0.1µF
0603
GRM188R71H104KA93D
Murata Electronics
2
10
C2,C4,C6,C11,C14,C18,C20,
C22,C24,C30
1000pF
0603
C1608X7R2A102K
TDK Corporation
3
3
C7,C32,C34
10µF
0805
C2012Y5V1C106Z
TDK Corporation
4
1
C9
NC
0603
5
1
C12
100pF
0603
C1608C0G1H101J
TDK Corporation
6
1
C15
33pF
0603
C0603C330J5GACTU
Kemet
7
1
C16
9pF
0603
C1608C0G1H090C
TDK Corporation
8
1
C38
4.7µF
1206P
TPSB475K016R1500
AVX Corporation
9
10
J1,J4,J5,J9,J10,J13,J14,
J15,J17,J19
CON4
STERM
8191
Keystone Electronics
10
8
J2,J3,J6,J8,J11,J12,J30, J36
CON4
SIP100P4
PBC36SAAN
Sullins Connector Solutions
11
14
TP1,TP2,TP3,J7,J16,J18,
J20,J22,J23,J25,J28,J29,
J31,J35
CON2
SIP100P2
PBC36SAAN
Sullins Connector Solutions
12
2
J21,J26
CON3
SIP100P3
PBC36SAAN
Sullins Connector Solutions
13
1
J24
CON9
SIP100P9
PBC36SAAN
Sullins Connector Solutions
14
1
J27
ICE
SIP100P6
PBC36SAAN
Sullins Connector Solutions
15
1
J32
SPI
DIP100P10
929665-01-36-I
3M
16
1
J33
Weco Tst
RAPC712A
RAPC712X
Switchcraft
17
1
J34
USB-B
USBB
154-2442-E
Kobiconn
18
1
LED1
LED
SIP100P2
4300H1LC
Chicago Miniature
19
2
LED2,LED3
LED
SIP100P2
4300H7LC
Chicago Miniature
20
2
LED4,LED5
LED
SIP100P2
606-4300H5LC
Chicago Miniature
21
1
LOGO1
Silk
WARNING
Rev 1
23
78M6631 Evaluation Board User Manual
UM_6631_077
Item
Quantity
Reference
Part
PCB Footprint
Manufacturer PN
Manufacturer
22
1
LOGO2
Silk
LOGO
TERIDIAN_MAXIM
23
4
MT1,MT2,MT3,MT4
TP
MTGPS.PRT
561-PS500A
Eagle Plastic Devices
24
13
R1,R4,R6,R10,R14,R17,R28,
R29,R30,R38,R39,R42,R45
10K
0603
ERJ-3EKF1002V
Panasonic - ECG
25
6
R2,R5,R7,R12,R15,R18
750 ±5%
0603
ERJ-3GEYJ751V
Panasonic - ECG
26
3
R3,R8,R16
12.4 ±1%
1210
MS 71-CRCW1210-12.4E3
KOA Speer
27
28
1
R9
16.9K ±1%
0603
ERJ-3EKF1692V
Panasonic - ECG
1
R11
2K
0603
ERJ-3GEYJ202V
Panasonic - ECG
29
1
R13
20.0K ±1%
0603
ERJ-3EKF2002V
Panasonic - ECG
30
3
R19,R22,R25
750 ±0.1%
0603
ERA-3YEB751V
Panasonic - ECG
31
6
R20,R21,R23,R24,R26,R27
1M ±0.1%
1206W
RN732BTTD1004B25
KOA Speer
32
2
R31,R32
1K
0603
ERJ-3EKF1001V
Panasonic - ECG
33
2
R33,R46
100
0603
ERJ-3GEYJ101V
Panasonic - ECG
34
5
R34,R35,R36,R40,R41
470
0603
ERJ-3GEYJ471V
Panasonic - ECG
35
1
R37
330
0603
ERJ-3EKF3300V
Panasonic - ECG
36
2
R43,R44
0
0603
ERJ-3GEY0R00V
Panasonic - ECG
37
1
SW1
EP11A
Through Hole
EP11SD1CBE
C&K Components
38
1
U1
78M663156TQFN
TQFN56
78M6831
Maxim Integrated Products
39
1
U2
SER EEPROM
8-SOIC
24LC01B-I/SN
Microchip Technology
40
1
U3
FT232QFN32
28-SSOP
FT232RL-REEL
FTDI
41
1
U4
ADUM3201
8-SOIC
ADUM3201ARZ
Analog Devices Inc
42
1
VR1
MAX5091BAS
A+
8-SOICN
MAX5091BASA+
Maxim Integrated Products
43
1
VR2
VBT1-5V
8-SMD
VBT1-S5-S5-SMT
V-Infinity
44
1
Y1
32.768KHz
4-SOJ
ABS25-32.768KHZ-T
Abracon Corporation
24
Rev 1
UM_6631_077
78M6631 Evaluation Board User Manual
3.3 78M6631 Evaluation Board PCB Layouts
Figure 8: 78M6631 Evaluation Board PCB Top View
Rev 1
Figure 9: 78M6631 Evaluation Board PCB Bottom View
25
78M6631 Evaluation Board User Manual
UM_6631_077
4 Ordering Information
PART
TYPE
78M6631-EVM-1
78M6631 Evaluation Board
5 Included Documentation
The following 78M6631 documents are included on the CD:
78M6631 Data Sheet
6 Contact Information
For more information about Maxim products or to check the availability of the 78M6631, contact technical
support at www.maxim-ic.com/support.
Revision History
REVISION
NUMBER
REVISION
DATE
0
7/11
Initial release
—
1
12/11
In Figure 2 and Figure 3, indicated optional resistors.
Changed the Flow Control to “None”.
10
17
26
DESCRIPTION
PAGES
CHANGED
Rev 1