General Description

The MAX6660 evaluation system (EV system) consists of a

MAX6660 evaluation kit (EV kit) and a companion Maxim

System Management Bus (SMBus)™ interface board.

The MAX6660 EV kit is an assembled and tested PC

board that demonstrates the MAX6660 remote temper-

ature sensor and fan-speed regulator. It monitors the

junction temperature of an external diode-connected

transistor, and converts the temperature to 8-bit or 11-

bit (extended resolution mode), 2-wire serial data. A

2N3906 temperature-sensor transistor comes soldered

to the board in a SOT23 package, but it can be

removed. The board can then be connected through a

twisted pair to a remote diode close to your system.

The MAX6660 also incorporates a closed-loop fan con-

troller that regulates fan speed with tachometer feed-

back. Note: Use this EV kit data sheet in conjunction

with the MAX6660 data sheet.

The Maxim SMBus interface board (MAXSMBUS)

allows an IBM-compatible PC to use its parallel port to

emulate an SMBus 2-wire interface. Windows®

95/98/2000-compatible software provides a user-friend-

ly interface to exercise the features of the MAX6660.

The program is menu driven and offers a graphic inter-

face with control buttons and status display. (Note:

Windows 2000 requires the installation of a driver; refer

to Win2000.pdf or Win2000.txt located on the diskette.)

Order the MAX6660EVSYS for a complete IBM PC-based

evaluation of the MAX6660. Order the MAX6660EVKIT if

you already have an SMBus interface.

Features

o Measures and Displays Remote-Sensor

Temperature

o Controls Fan Speed

o Programmable Alarms and Configuration

o Operating Temperature Ranges

-40°C to +125°C (Remote Sensor)

0°C to +70°C (Board)

o Easy-to-use Menu-Driven Software

o Assembled and Tested

o Includes Windows 95/98/2000-Compatible

Software and Demo PC Board

MAX6660 Evaluation System/Evaluation Kit

________________________________________________________________ Maxim Integrated Products

1

DESIGNATION QTY

DESCRIPTION

C1, C4

2

0.1µF, 16V X7R ceramic capacitors

Murata GRM39X7R104K016

Taiyo Yuden EMK107BJ104KA

TDK C1608X7R1E104K

C2

1

2200pF, 50V X7R ceramic capacitor

(0603)

C3, C5

2

10µF, 35V aluminum electrolytic

capacitors

J1

1

2 x 10 right-angle female receptacle

JU1, JU2, JU3,

JU5

4

3-pin headers

MAX6660EV Kit Component List

Ordering Information

19-2350; Rev 0; 1/02

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

SMBus is a trademark of Intel Corp.

Windows is a registered trademark of Microsoft Corp.

PART

TEMP

RANGE

SMBus

INTERFACE

TYPE

MAX6660EVKIT

0°C to +70°C

Not included

MAX6660EVSYS

0°C to +70°C

MAXSMBUS

The MAX6660 EV kit software is provided with the

MAX6660EVKIT. However, the MAXSMBUS board is required to

interface the EV kit to the computer when using the software.

DESIGNATION QTY

DESCRIPTION

JU4

0

Not installed

Q1

1

PNP bipolar transistor (SOT23)

Central Semiconductor CMPT3906

Diodes Inc. MMBT3906

Fairchild MMBT3906

General Semiconductor MMBT3906

R1

1

100k

Ω ±5% resistor

R2

0

Not installed

R3

1

4.99k

Ω ±1% resistor

R4

1

51

Ω ±5% resistor

S1

1

Slide switch

U1

1

MAX6660AEE (16-pin QSOP)

None

3

Shunts for JU1, JU2, and JU3

PART

QTY

DESCRIPTION

MAX6660EVKIT

1

MAX6660 evaluation kit

MAXSMBUS

1

SMBus interface board

MAX6660EVSYS Component List