19-0620; Rev 1; 8/07
Five-Channel Precision Temperature Monitor
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鈩? 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擄C to +125擄C oper-
ating temperature range and is available in a 16-pin
TSSOP package.
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Features
Four Thermal-Diode Inputs
Local Temperature Sensor
1擄C Remote Temperature Accuracy (+60擄C to +100擄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
MAX6602
Ordering Information
PIN-
SLAVE
PKG
PACKAGE
ADDRESS
CODE
MAX6602UE9A+ 16 TSSOP
1001 101
U16-1
Note:
This device is specified over the -40擄C to +125擄C
temperature range.
PART
Applications
Desktop Computers
Notebook Computers
Workstations
Servers
SMBus is a trademark of Intel Corp.
Pin Configuration appears at end of data sheet.
+Denotes
lead-free package.
Typical Application Circuit
+3.3V
CPU
1
2200pF
2
3
2200pF
4
5
2200pF
6
7
2200pF
8
DXN4
STBY
9
DXN3
DXP4
OVERT 11
N.C. 10
TO SYSTEM
SHUTDOWN
DXN2
DXP3
ALERT 13
V
CC
12
0.1渭F
INTERRUPT
TO
渭P
DXN1
DXP2
SMBCLK 15
CLK
DATA
DXP1
GND 16
4.7k惟
EACH
MAX6602
SMBDATA 14
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim鈥檚 website at www.maxim-ic.com.
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