MAX6698 Datasheet, PDF (1/24 Pages) Maxim Integrated Products – 7-Channel Precision Remote-Diode, Thermistor, and Local Temperature Monitor

19-3476; Rev 3; 8/07
EVAALVUAAILTAIOBNLEKIT
7-Channel Precision Remote-Diode, Thermistor,
and Local Temperature Monitor
General Description
The MAX6698 precision multichannel temperature sen-
sor monitors its own temperature, the temperatures of
three external diode-connected transistors, and the
temperatures of three thermistors. All temperature
channels have programmable alert thresholds.
Channels 1, 4, 5, and 6 also have programmable over-
temperature thresholds. When the measured tempera-
ture of a channel exceeds the respective threshold, a
status bit is set in one of the status registers. Two open-
drain outputs, OVERT and ALERT, assert correspond-
ing 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 MAX6698 is specified for an operating temperature
range of -40°C to +125°C and is available in 16-pin
QSOP and 16-pin TSSOP packages.
Applications
Desktop Computers
Notebook Computers
Workstations
Servers
Features
♦ Three Thermal-Diode Inputs and Three Thermistor
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
♦ Small 16-Pin QSOP and 16-Pin TSSOP Packages
♦ 2-Wire SMBus Interface
Ordering Information
PART
TEMP RANGE
PIN-
PKG
PACKAGE CODE
MAX6698EE_ _ -40°C to +125°C 16 QSOP
E16-1
MAX6698UE_ _ -40°C to +125°C 16 TSSOP U16-1
*See the Slave Address section.
Pin Configuration appears at end of data sheet.
Typical Application Circuit
+3.3V
1 _DXP1
GND ¹⁶
2 _DXN1 MAX6698 _SMBCLK 15
3 _DXP2
SMBDATA ¹⁴
4 _DXN2
ALERT ¹³
5 _DXP3
6 _DXN3
V_CC ¹²
OVERT ¹¹
7 _THER3
8 _VREF
THER1 ¹⁰
THER2 ⁹
R_EX3
R_THER3
R_EX2
R_EX1
R_THER2 R_THER1
SMBus is a trademark of Intel Corp.
________________________________________________________________ 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.