General Description
The MAX6699 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
thresholds. 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 MAX6699 is specified for an operating temperature
range of -40癈 to +125癈 and is available in 16-pin
QSOP and 16-pin TSSOP packages.
Applications
Desktop Computers
Notebook Computers
Workstations
Servers
Features
f Four Thermal-Diode Inputs
f Local Temperature Sensor
f 1?/SPAN>C Remote Temperature Accuracy (+60?/SPAN>C to +100?/SPAN>C)
f Temperature Monitoring Begins at POR for Fail-Safe
System Protection
f ALERT and OVERT Outputs for Interrupts, Throttling,
and Shutdown
f Small 16-Pin QSOP and 16-Pin TSSOP Packages
f 2-Wire SMBus Interface
5-Channel Precision Temperature Monitor
________________________________________________________________ Maxim Integrated Products   1
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
V
CC
N.C.1
N.C.2
DXN4
DXP4
DXN3
DXP3
MAX6699
ALERT
OVERT
2200pF
2200pF
2200pF
2200pF
CPU
0.1礔
TO SYSTEM
SHUTDOWN
INTERRUPT
TO 礟
DATA
CLK
4.7k&
EACH
+3.3V
Typical Application Circuit
19-3859; Rev 2; 7/07
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxims website at www.maxim-ic.com.
PART
TEMP RANGE
PIN-
PACKAGE
PKG
MAX6699EE_ _    -40癈 to +125癈
16 QSOP
E1  -1
MAX6699UE_ _   -40癈 to +125癈
16 TSSOP
1  -1
SMBus is a trademark of Intel Corp.
See the Slave Address section.
Pin Configuration appears at end of data sheet.
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