MAX6693 Datasheet, PDF (1/19 Pages) Maxim Integrated Products – 7-Channel Precision Temperature Monitor with Beta Compensation

19-4096; Rev 0; 5/08
7-Channel Precision Temperature Monitor
with Beta Compensation
General Description
The MAX6693 precision multichannel temperature sen-
sor monitors its own temperature and the temperatures
of up to six external diode-connected transistors. All
temperature channels have programmable alert thresh-
olds. Channels 1, 4, 5, and 6 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 MAX6693 is specified for an operating temperature
range of -40°C to +125°C and is available in a 20-pin
TSSOP package.
Desktop Computers
Notebook Computers
Workstations
Servers
Applications
Features
♦ Six Thermal-Diode Inputs
♦ Beta Compensation (Channel 1)
♦ Local Temperature Sensor
♦ 1.5°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, 20-Pin TSSOP Package
♦ 2-Wire SMBus Interface
Ordering Information
PART
TEMP RANGE
MAX6693UP9A+ -40°C to +125°C
+Denotes a lead-free package.
Note: Slave address is 1001 101.
PIN-PACKAGE
20 TSSOP
SMBus is a trademark of Intel Corp.
Pin Configuration appears at end of data sheet.
CPU
100pF
1 _DXP1
GND ²⁰
2 _DXN1 MAX6693 _SMBCLK 19
100pF
3 _DXP2
4 _DXN2
SMBDATA ¹⁸
ALERT ¹⁷
100pF
5 _DXP3
6 _DXN3
VCC ¹⁶
OVERT ¹⁵
100pF
7 _DXP4
8 _DXN4
N.C. ¹⁴
STBY ¹³
100pF
9 _DXP5
10 _DXN5
DXP6 ¹²
DXN6 ¹¹
Typical Application Circuit
+3.3V
4.7kΩ
EACH
CLK
DATA
INTERRUPT
TO μP
0.1μF
TO SYSTEM
SHUTDOWN
GPU
100pF
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