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MAX6689UP34

更新时间： 2024-11-06 03:11:15
品牌 Logo 应用领域
美信 - MAXIM /
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19页 342K
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7-Channel Precision Temperature Monitor

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MAX6689UP34 数据手册

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19-0567; Rev 0; 5/06  
7-Channel Precision Temperature Monitor  
General Description  
Features  
♦ Six Thermal-Diode Inputs  
♦ Local Temperature Sensor  
The MAX6689 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.  
♦ 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, 20-Pin QSOP and TSSOP Packages  
♦ 2-Wire SMBus Interface  
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.  
Ordering Information  
PIN-  
SLAVE  
ADDRESS  
0011 010  
0011 100  
PKG  
CODE  
E20-1  
E20-1  
PART  
The MAX6689 is specified for an operating temperature  
range of -40°C to +125°C and is available in 20-pin  
QSOP and TSSOP packages.  
PACKAGE  
20 QSOP  
20 QSOP  
MAX6689EP34+  
MAX6689EP38+  
MAX6689EP9A+ 20 QSOP  
MAX6689EP9E+ 20 QSOP  
MAX6689UP34+ 20 TSSOP  
MAX6689UP38+ 20 TSSOP  
MAX6689UP9A+ 20 TSSOP  
MAX6689UP9E+ 20 TSSOP  
1001 101  
1001 111  
0011 010  
0011 100  
1001 101  
1001 111  
E20-1  
E20-1  
U20-2  
U20-2  
U20-2  
U20-2  
Applications  
Desktop Computers  
Notebook Computers  
Workstations  
Servers  
Note: All devices are specified over the -40°C to +125°C  
temperature range.  
SMBus is a trademark of Intel Corp.  
+Denotes lead-free package.  
Pin Configuration appears at end of data sheet.  
Typical Application Circuit  
+3.3V  
CPU  
4.7kΩ  
1
2
3
4
5
6
7
8
20  
19  
18  
17  
16  
15  
14  
13  
DXP1  
DXN1  
DXP2  
DXN2  
DXP3  
DXN3  
DXP4  
DXN4  
GND  
SMBCLK  
SMBDATA  
ALERT  
EACH  
2200pF  
2200pF  
2200pF  
2200pF  
2200pF  
MAX6689  
CLK  
DATA  
INTERRUPT  
TO µP  
V
CC  
0.1µF  
OVERT  
TO SYSTEM  
SHUTDOWN  
N.C.  
STBY  
GPU  
9
12  
11  
DXP5  
DXN5  
DXP6  
DXN6  
2200pF  
10  
________________________________________________________________ Maxim Integrated Products  
1
For pricing delivery, and ordering information please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  
1234567...19

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