19-4448; Rev 0; 1/09
MAX6639 Evaluation Kit
Evluates:/MAX639F
General Description
Features
o Two Thermal-Diode Inputs
o Local Temperature Sensor
o Programmable Temperature Alarms
o Two PWM Outputs for Fan Drive
The MAX6639 evaluation kit (EV kit) is an assembled and
tested PCB used to evaluate the MAX6639 dual tempera-
ture sensor/fan controller. The MAX6639 monitors its own
die temperature and the junction temperature of one
external diode-connected transistor, or the junction tem-
peratures of two external diode-connected transistors. It
converts the temperature to 8-bit or 11-bit 2-wire serial
data that can be accessed over a 2-wire serial bus.
o Up to 25kHz PWM Output Frequency
o Programmable Fan-Control Characteristics
o 3-Wire and 4-Wire Fan Configurations
o On-Board Microcontroller to Generate
The MAX6639 EV kit includes both external diode-connect-
ed transistors (2N3906) soldered to the board, which can
be bypassed to connect the board through a twisted pair
to remote diodes close to your system.
2
SMBus™/I C Commands
o USB-PC Connection (Cable Included)
o Windows 2000/XP- and Windows Vista
The temperature data is also used by the internal dual
PWM fan-speed controller to adjust the speed of up to
two cooling fans. Speed control is accomplished by
tachometer feedback from the fan.
The EV kit also includes Windows® 2000/XP- and
Windows Vista®-compatible software, which provides a
simple user interface for exercising the features of the
MAX6639. The program is menu-driven and offers a
graphical user interface (GUI) complete with control but-
tons. The EV kit comes with the MAX6639AEE+ installed.
Contact the factory for free samples of the pin-compatible
MAX6639FAEE+ and MAX6640AEE+.
(32-Bit)-Compatible Software
o Easy-to-Use, Menu-Driven Software
o Lead(Pb)-Free and RoHS Compliant
o Fully Assembled and Tested
Ordering Information
PART
TYPE
MAX6639EVKIT+
EV Kit
+Denotes lead(Pb)-free and RoHS compliant.
The MAX6639 EV kit also evaluates the MAX6640. The
MAX6640 is not recommended for new designs.
Windows and Windows Vista are registered trademarks of
Microsoft Corp.
SMBus is a trademark of Intel Corp.
Component List
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
10µF 10ꢀ, 16V XꢁR ceramic
capacitors (080ꢁ)
Murata GRM21BR61C106K
2200pF 10ꢀ, ꢁ0V XꢂR ceramic
capacitors (0603)
Murata GRM188Rꢂ1H222K
C1, C12, C14
C2, C3
3
2
1
9
3
2
C20, C21
2
22pF ꢁꢀ, ꢁ0V C0G ceramic
capacitors (0603)
Murata GRM188ꢁC1H220J
D1, D2, D3
D4
3
1
Red LEDs (0603)
Green LED (0603)
Not installed, dual-row (2 x ꢁ)
10-pin JTAG header
H1
0
2
0.033µF 10ꢀ, 2ꢁV XꢂR ceramic
capacitor (0603)
TDK C1608XꢂR1E333K
C4
3-pin headers, 0.1in pitch, vertical,
friction lock
J1, J2
0.1µF 10ꢀ, 16V XꢂR ceramic
capacitors (0603)
TDK C1608XꢂR1C104K
Cꢁ–C10 , C1ꢂ,
C18, C19
4-pin headers, 0.1in pitch, vertical,
friction lock
J3, J4
2
ꢂ
0
1µF 10ꢀ, 16V XꢁR ceramic
capacitors (0603)
TDK C1608XꢁR1C10ꢁK
JU1–JUꢂ
JU8–JU13
3-pin headers
C11, C13, C22
C1ꢁ, C16
Not installed, 2-pin headers—shorted
by PCB trace
10pF ꢁꢀ, ꢁ0V C0G ceramic
capacitors (0603)
Murata GRM188ꢁC1H100J
Ferrite bead (0603)
TDK MMZ1608R301A
L1
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.