MAX1739EVKIT Maxim Integrated Products, MAX1739EVKIT Datasheet - Page 4

• Manufacturer Part Number: MAX1739EVKIT
• Description: Power Management Modules & Development Tools MAX1739 EVAL KIT MAX1739 EVAL KIT
• Manufacturer: Maxim Integrated Products

Specifications of MAX1739EVKIT

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Before you begin, you will need the following equip-
ment:
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1) Carefully connect the boards by aligning the 20-pin
Do not turn on the power until all connections are
completed.
2) Connect the lamp to the high-voltage pads.
3) Set the jumpers to the following positions:
4) Connect a cable from the computer’s parallel port
WARNING! High Voltages are present on this evalu-
ation kit. Use caution when making connections and
applying power.
MAX1739 Evaluation System/
Evaluation Kit
4
An IBM PC-compatible computer running Windows
95/98
A parallel printer port (25-pin socket on the back of
the computer)
A standard 25-pin, straight-through, male-to-female
cable to connect the computer’s parallel port to the
Maxim SMBus interface board
A DC power supply capable of supplying any volt-
age between +7V to +20V at 100mA to power the
SMBus board
A DC power supply capable of supplying +12V at
500mA to power the MAX1739 board
A CCFL with the following specifications:
JU1 1-4
JU2 2-3
JU3 1-3
JU4 1-2
JU5 Open
JU6 2-3
to the SMBus interface board. Use a straight-
through, 25-pin, female-to-male cable. To avoid
damaging the EV kit or your computer, do not use a
25-pin SCSI port or any other connector that is
physically similar to the 25-pin parallel printer port.
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connector of the MAX1739 EV kit with the 20-pin
header of the MAXSMBUS interface board. Gently
press them together. The two boards should be
flush against each other.
Strike Voltage ≤ 1.6kV
Lamp Current ≤ 6mA
Input Power ≤ 4W
Required Equipment
Quick Start
Procedure
5) The MAX1739.EXE software program can be run
6) Connect the +7VDC to +20VDC power supply to
7) Connect the +12V supply to the pads labeled VIN
8) Turn on both power supplies.
9) Start the MAX1739 program by opening its icon in
10) Observe as the program automatically detects the
The user interface is easy to operate. Use the mouse or
press the Tab key to navigate with the arrow keys. Each
of the buttons corresponds to bits in the command and
configuration bytes. Clicking on them generates the
correct SMBus write operation to update the internal
registers.
The brightness of the lamp can be adjusted by either
moving the trackbar or by entering a value between 0
and 31 into the edit field located below the trackbar.
After typing in the new value to update the internal reg-
ister, press Enter.
The SHMD register configures the operation of the
device as described in Table 1.
When the Automatic Read feature is enabled, the pro-
gram polls the MAX1739 two times per second. The
brightness, mode, and status are read and the appro-
priate fields are updated on the main display. Disable
this feature by unchecking the checkbox and click the
appropriate button to update each field individually.
The Brightness Cycle feature cycles the brightness
through its entire range.
The Status register indicates whether the lamp circuit
has opened (Status1 low) or an overcurrent condition
has occurred (Status0 low).
The Reset button sets the MAX1739 and software to
the POR state. If in doubt, click the Reset button.
from the floppy or hard drive. Use the Windows pro-
gram manager to run the program. If desired, you
may use the INSTALL.EXE program to copy the files
and create icons for them in the Windows 95/98
Start menu. An uninstall program is included with
the software. Click on the UNINSTALL icon to
remove the EV kit software from the hard drive.
the pads labeled POS9 and GND1 of the SMBus
interface board.
and GND.
the Start menu.
address of the MAX1739 and starts the main pro-
gram.
Detailed Description of Software
User-Interface Panel