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MAX1617A PDF预览

MAX1617A

更新时间: 2024-11-27 14:57:27
品牌 Logo 应用领域
亚德诺 - ADI 温度传感传感器温度传感器
页数 文件大小 规格书
20页 1370K
描述
远端/本地温度传感器,带有SMBus串行接口

MAX1617A 数据手册

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EVALUATION KIT AVAILABLE  
MAX1617A  
Remote/Local Temperature Sensor  
with SMBus Serial Interface  
General Description  
Features  
The MAX1617A is a precise digital thermometer that  
reports the temperature of both a remote sensor and its  
own package. The remote sensor is a diode-connected  
transistor—typically a low-cost, easily mounted 2N3904  
NPN type—that replaces conventional thermistors or  
thermocouples. Remote accuracy is ±3°C for multiple  
transistor manufacturers, with no calibration needed. The  
remote channel can also measure the die temperature of  
other ICs, such as microprocessors, that contain an on-  
chip, diode-connected transistor.  
Two Channels: Measures Both Remote and Local  
Temperatures  
No Calibration Required  
SMBus 2-Wire Serial Interface  
Programmable Under/Overtemperature Alarms  
Supports SMBus Alert Response  
Supports Manufacturer and Device ID Codes  
Accuracy  
• ±2°C (+60°C to +100°C, local)  
• ±3°C (-40°C to +125°C, local)  
• ±3°C (+60°C to +100°C, remote)  
The 2-wire serial interface accepts standard System  
Management Bus (SMBus) Write Byte, Read Byte, Send  
Byte, and Receive Byte commands to program the alarm  
thresholds and to read temperature data. The data format  
is 7 bits plus sign, with each bit corresponding to 1°C, in  
two’s complement format. Measurements can be done  
automatically and autonomously, with the conversion rate  
programmed by the user or programmed to operate in a  
single-shot mode. The adjustable rate allows the user to  
control the supply-current drain.  
● 3μA (typ) Standby Supply Current  
● 70μA (max) Supply Current in Auto-Convert Mode  
+3V to +5.5V Supply Range  
Small 16-Pin QSOP Package  
Ordering Information  
The MAX1617A is nearly identical to the popular  
MAX1617, but has improved SMBus timing specifications,  
improved bus collision immunity, software manufacturer  
and device identification available via the serial interface,  
and a power-on reset function that can force a reset of the  
slave address via the serial interface.  
PART  
PIN-PACKAGE  
PIN-PACKAGE  
MAX1617AMEE+  
-55°C to +125°C  
16 QSOP  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
Applications  
Desktop and Notebook  
Central Office  
Typical Operating Circuit  
Computers  
Telecom Equipment  
Smart Battery Packs  
LAN Servers  
Test and Measurement  
Multichip Modules  
3V TO 5.5V  
0.1µF  
Industrial Controls  
V
CC  
STBY  
Pin Configuration  
10k EACH  
MAX1617A  
TOP VIEW  
+
N.C.  
1
2
3
4
5
6
7
8
16 N.C.  
DXP  
DXN  
CLOCK  
DATA  
SMBCLK  
V
CC  
15 STBY  
14 SMBCLK  
SMBDATA  
DXP  
DXN  
N.C.  
MAX1617A  
13 N.C.  
INTERRUPT  
TO µC  
ALERT  
2N3904  
2200pF  
12 SMBDATA  
11 ALERT  
10 ADD0  
ADD0 ADD1 GND  
ADD1  
GND  
GND  
9
N.C.  
QSOP  
19-4508; Rev 2; 11/16  

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