General Description

The MAX6602 precision multichannel temperature sen-

sor monitors its own temperature and the temperatures

of up to four external diode-connected transistors. All

temperature channels have programmable alert thresh-

olds. Channels 1 and 4 also have programmable

overtemperature thresholds. When the measured tem-

perature of a channel exceeds the respective thresh-

old, a status bit is set in one of the status registers. Two

open-drain outputs, OVERT and ALERT, assert corre-

sponding to these bits in the status register.

The 2-wire serial interface supports the standard system

management bus (SMBus™) protocols: write byte, read

byte, send byte, and receive byte for reading the tem-

perature data and programming the alarm thresholds.

The MAX6602 is specified for a -40°C to +125°C oper-

ating temperature range and is available in a 16-pin

TSSOP package.

Applications

Desktop Computers

Notebook Computers

Workstations

Servers

Features

♦ Four Thermal-Diode Inputs

♦ Local Temperature Sensor

♦ 1°C Remote Temperature Accuracy (+60°C to +100°C)

♦ Temperature Monitoring Begins at POR for Fail-

Safe System Protection

♦ ALERT and OVERT Outputs for Interrupts,

Throttling, and Shutdown

♦ STBY Input for Hardware Standby Mode

♦ Small, 16-Pin TSSOP Package

♦ 2-Wire SMBus Interface

Five-Channel Precision Temperature Monitor

________________________________________________________________ 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.

Ordering Information

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

GND

SMBCLK

SMBDATA

DXN2

DXP2

DXN1

DXP1

N.C.

STBY

DXN4

DXP4

DXN3

DXP3

MAX6602

ALERT

OVERT

2200pF

2200pF

2200pF

2200pF

CPU

0.1

μF

TO SYSTEM

SHUTDOWN

INTERRUPT

TO

μP

DATA

CLK

4.7k

Ω

EACH

+3.3V

Typical Application Circuit

19-0620; Rev 1; 8/07

PART

PIN-

PACKAGE

SLAVE

ADDRESS

PKG

CODE

MAX6602UE9A+

16 TSSOP

1001 101

U16-1

SMBus is a trademark of Intel Corp.

Note: This device is specified over the -40°C to +125°C

temperature range.

+Denotes lead-free package.

Pin Configuration appears at end of data sheet.