19-1540; Rev 0; 11/07
MAX16031 Evaluation Kit
General Description
The MAX16031 evaluation kit (EV kit) provides a proven
printed-circuit board (PCB) layout that facilitates evalu-
ation of the MAX16031 EEPROM-based system monitor
with nonvolatile fault memory. This EV kit is a fully
assembled and tested surface-mount board.
The EV kit includes an on-board USB-to-JTAG and I
2
C
interface facilitating communications between the host
PC and the MAX16031. A DAC connected to the moni-
toring inputs and the status LEDs connected to each
programmable output make it easy to evaluate the vari-
ous monitoring functions of the MAX16031.
This EV kit data sheet assumes basic familiarity with the
MAX16031. Refer to the MAX16031/MAX16032 IC data
sheet for more detailed information.
♦
USB Interface to Host PC
♦
Easy-to-Use GUI Software
♦
Facilitates Programming of MAX16031s on
Prototype Boards
♦
LEDs Indicate Each Output’s State
♦
On-Board DAC Simulates Monitored Voltages
♦
Convenient Test Points and Headers for Easy
Evaluation
♦
Fully Assembled and Tested
Features
Evaluates: MAX16031
Ordering Information
PART
MAX16031EVKIT+
+Denotes
lead-free and RoHS-compliant.
TYPE
EV Kit
Component List
DESIGNATION
C1, C2, C4,
C100, C108
QTY
DESCRIPTION
1μF ±10%, 10V X5R ceramic
capacitors (0805)
TDK C2012X5R1A105K
KEMET C0805C105K4PAC
0.1μF ±10%, 25V X7R ceramic
capacitors (0805)
TDK C2012X7R1E104K
Taiyo Yuden TMK212B104KT
Not installed, capacitor (0805)
0.1μF ±10%, 25V X7R ceramic
capacitors (0603)
TDK C1608X7R1E104K
Taiyo Yuden TMK107BJ104KA
18pF ±5%, 50V C0G ceramic
capacitors (0603)
TDK C1608C0G1H180J
Taiyo Yuden UMK107CG180JZ
4.7μF ±20%, 6.3V X5R ceramic
capacitor (0805)
TDK C2012X5R0J475M
Taiyo Yuden JMK212BJ475MG
0.01μF ±10%, 50V X7R ceramic
capacitor (0603)
TDK C1608X7R1H103K
Taiyo Yuden UMK107B103KZ
DESIGNATION
QTY
DESCRIPTION
2.2µF ±20%, 10V X5R ceramic
capacitors (0805)
TDK C2012X5R1A225M
Taiyo Yuden LMK212BJ225MG
33pF ±5%, 50V C0G ceramic
capacitor (0603)
TDK C1608C0G1H330J
Taiyo Yuden UMK107CG330JZ
Test point, red
500mA fast-acting fuse (2405)
Test points, black
3-pin headers
2-pin header
2 x 3-pin header
Green LEDs (1206)
USB_B right-angle connector
Not installed
5-pin header
2 x 5-pin header
11-pin header
9-pin header
4-pin header
5
C112, C113
2
C3, C5, C6
3
C114
1
C7
C101, C102,
C103
0
EXT PWR
F100
GND, REF
J1, J2, J4
J3
J100
LED1–LED7,
LED100–LED103
P100
P101, P102
P1
P2
P3
P4
P5
1
1
2
3
1
1
11
1
0
1
1
1
1
1
3
C104, C105,
C106, C107
4
C110
1
C111
1
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX16031 Evaluation Kit
Evaluates: MAX16031
Component List (continued)
DESIGNATION
Q1, Q2
R1–R7,
R100–R103
R8–R14, R104
R23, R112
R105, R106
R108, R109, R110
S1, S2, S3
U1
QTY
2
DESCRIPTION
npn bipolar transistors
Fairchild MMBT3904
Diodes Inc. MMBT3904-7-F
221
10k
33.2
4.75k
±1% resistors (0805)
±1% resistors (0805)
±1% resistors (0805)
±1% resistors (0805)
DESIGNATION
U100
QTY
1
DESCRIPTION
Maxim dual, low-noise, low-
dropout linear regulator
MAX8882EUTAQ+ (6-pin SOT23)
Maxim USB peripheral controller
MAX3420EECJ+ (32-pin LQFP)
Maxim microcontroller
MAXQ2000-RAX+ (68-pin QFN-EP*)
12MHz crystal (HCM49)
Citizen HCM49-12.000MABJ-UT
Not installed, 32kHz crystal
20MHz crystal (HCM49)
Citizen HCM49-20.000MABJ-UT
Shunts
USB high-speed A-to-B cable,
5ft (1.5m)
PCB: MAX16031 Evaluation Kit+
11
8
0
2
3
3
1
U101
U102
Y100
Y101
Y102
—
—
—
1
1
1
0
1
5
1
1
Not installed, resistors
8-row DIP switches
Maxim EEPROM-based system
monitor
MAX16031ETM+ (48-pin TQFN)
Maxim octal 12-bit voltage-output
DAC with serial interface
MAX5306EUE+ (16-pin TSSOP)
Maxim precision, low-dropout,
micropower voltage reference
MAX6025AEUR+ (3-pin SOT23)
U2
1
U3
1
*EP
= Exposed paddle.
Component Suppliers
SUPPLIER
Diodes, Inc.
Fairchild Semiconductor
KEMET Corp.
Taiyo Yuden
TDK Corp.
PHONE
805-446-4800
888-522-5372
864-963-6300
800-348-2496
847-390-4373
WEBSITE
www.diodes.com
www.fairchildsemi.com
www.kemet.com
www.t-yuden.com
www.component.tdk.com
Note:
Indicate that you are using the MAX16031 when contacting these component suppliers.
Quick Start
Required Equipment
Before beginning, the following equipment is needed:
• MAX16031 EV kit (includes USB cable)
•
A user-supplied PC with a spare USB port
Note:
In the following sections, software-related items
are identified by bolding. Text in
bold
refers to items
directly from the EV kit software.
2) Connect the MAX16031 EV kit to a PC using the
USB cable provided with the EV kit. LED100 will
light indicating that the EV kit has power.
3) Install the EV kit software.
4) Launch MAX16031.exe.
5) Click the
I2C
radio button in the
Connect
dialog
box, and make sure
Address
is 0x18. Press the
OK
button.
6) Click the number
0.00
next to
DAC Voltage
for IN1.
7) In the
Set Input Voltage
dialog box, enter
1.00
and
press the
OK
button.
8) Note that the voltage in the chart-recorder view
increases to 1V.
Procedure
The MAX16031 EV kit is fully assembled and tested.
Follow the steps below to verify board operation:
1) Make sure jumpers J1 and J2 are in the 0 position, J3
is closed, J100 is in the 3.3V position, and J4 is in the
1-2 position. Also ensure that all switches in switch
banks S1, S2, and S3 are all in the ON position.
2
_______________________________________________________________________________________
MAX16031 Evaluation Kit
Detailed Description of Software
Connecting to the MAX16031 EV Kit
Make sure the EV kit is connected to the PC by the USB
cable. Launch the software and in the
Connect
dialog
(Figure 1), select the
I2C
or
JTAG
radio button and
click
OK.
If the software is being used without the EV kit
connected, select the
Demo (No Hardware Required)
radio button.
The I
2
C slave address may be specified. The default is
0x18,
but other values (depending on the settings of
jumpers J1 and J2) can be used.
Evaluates: MAX16031
Voltages Tab
The
Voltages
tab (Figure 2) provides a visual indication
of the voltage present on every IN_ input. Each channel
has a settings dialog (accessed by clicking the under-
lined
IN_
link), a DAC output voltage setting, settings
for each overvoltage and undervoltage threshold, two
fault flags, and a chart-recorder view.
Figure 1. Connect Dialog
Figure 2. Voltages Tab
_______________________________________________________________________________________
3
MAX16031 Evaluation Kit
Evaluates: MAX16031
Each IN_ input can be connected to the on-board
MAX5306 DAC using switch bank S1. This allows the
voltage at the IN_ input to be manually controlled through
the EV kit software. Click the link next to
DAC Voltage
to
set the voltage of the DAC in the 0 to 2.5V range. The
DAC voltage can also be changed by dragging the dot-
ted green line, shown in the chart-recorder view.
To set the primary or secondary overvoltage or under-
voltage thresholds for a particular channel, click the
appropriate underlined number next to that parameter.
The primary thresholds can also be modified by drag-
ging the dotted red lines in the chart-recorder view. The
secondary thresholds can be changed the same way;
both appear as dotted yellow lines.
Two fault flag indicators are associated with each chan-
nel. The upper one corresponds to the primary fault
thresholds; the lower one corresponds with the sec-
ondary fault thresholds. If an undervoltage or overvolt-
age fault occurs, one or both these indicators will turn
red and remain so even after the original fault condition
is removed. To clear a fault indicator, click the indicator
and select
Clear Fault
or
Clear All Faults
on the menu
that appears.
Each chart-recorder view shows the voltage on the cor-
responding IN_ input with a solid green line. To zoom in
and zoom out, click the magnifying glass icons in the
upper right of the chart-recorder view. Another way to
zoom in and out is to click and “drag” a selection rec-
tangle. Drag from upper left to lower right to zoom in,
and from lower right to upper left to zoom out.
Two IN inputs can be paired to form a combined differ-
ential input. Click any of the
Single Ended
links in the
center of the window to pair two inputs together, or to
separate two paired inputs.
Figure 3. Settings Dialog
The
Settings
dialog (Figure 3) can set the IN input-volt-
age range to one of three settings: 1.4V, 2.8V, and
5.6V. To enable channel monitoring, make sure the
Enable Fault Detection
checkbox is selected. The
Disable Interrupts and Outputs for
group box allows
faults on the primary or secondary thresholds to be
“masked,” which prevents them from triggering an
SMBus™ interrupt or asserting a fault output.
The Save
State to EEPROM on
group box selects which type of
fault can trigger a nonvolatile fault save operation.
SMBus is a trademark of Intel Corp.
4
_______________________________________________________________________________________
MAX16031 Evaluation Kit
Current and Temperature Tab
The
Current and Temperature
tab (Figure 4) provides
a set of chart-recorder views similar to the
Voltages
tab. To select the display units for the temperature sen-
sors, click the appropriate setting of the
Temperature
Display
radio buttons.
Similar to the input channels on the
Voltages
tab, the
current and the temperature channels each have a set-
tings dialog. Click the title of each channel to display
the settings dialog. To enable channel monitoring,
make sure
Enable Fault Detection
is selected (Figure
5). The
Disable Interrupts and Outputs for
group box
allows faults on the primary or secondary thresholds to
be “masked,” which prevents them from triggering an
SMBus interrupt or asserting a fault output. The
Save
State to EEPROM on
group box controls whether a
fault can trigger a nonvolatile fault save operation.
Evaluates: MAX16031
Figure 4. Current and Temperature Tab
_______________________________________________________________________________________
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