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參數(shù)資料
| 型號： | MAX6677 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Low-Voltage, 1.8kHz PWM Output Temperature Sensors |
| 中文描述： | 低電壓、1.8kHz PWM輸出的溫度傳感器 |
| 文件頁數(shù)： | 6/7頁 |
| 文件大?。?/td> | 162K |
| 代理商： | MAX6677 |
M
Low-Voltage, 1.8kHz PWM Output Temperature
Sensors
6
_______________________________________________________________________________________
Galvanic Isolation
Use an optocoupler to isolate the MAX6676/MAX6677
whenever a high common-mode voltage is present.
Choose an optocoupler with equal turn-on and turn-off
times. Unequal turn-on/turn-off times produce an error
in the temperature reading (Figure 3).
Thermal Considerations
Self-heating may cause the temperature measurement
accuracy of the MAX6676/MAX6677 to degrade in
some applications. The quiescent dissipation and the
power dissipated by the digital output may cause
errors in obtaining the accurate temperature measure-
ment. The temperature errors depend on the thermal
conductivity of the package (SOT23, +140
°
C/W), the
mounting technique, and the airflow. Static dissipation
is typically 4.0μW operating at 5V with no load. For
example, an out load of 3mA creates a maximum error
of less than 0.1
°
C.
Multiple Logic Voltages
Use the MAX6676 open-drain output to drive devices
operating at supply voltages other than the MAX6676
’
s
V
CC
. As shown in Figure 4, connect a pullup resistor
from the other supply voltage to the MAX6676 output.
Limit the resistor
’
s current to less than 1mA, thus main-
taining an output low logic level of less than 200mV.
Chip Information
TRANSISTOR COUNT: 2096
PROCESS: BiCMOS
3.3V
DOUT
V
ISO
MAX6676AUT3
Figure 3. Galvanic Isolation Using an Optocoupler
V
CC
DOUT
MAX6676
V
DD
5.1k
Figure 4. Low-Voltage Logic
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX6676AUT3 | Low-Voltage, 1.8kHz PWM Output Temperature Sensors |
| MAX6676AUT3-T | HEX SCHMITT-TRIGGER INVERTERS 14-CDIP -55 to 125 |
| MAX6676AUT5 | HEX SCHMITT-TRIGGER INVERTERS 14-CFP -55 to 125 |
| MAX6676AUT5-T | Quadruple 2-Line To 1-Line Data Selector / Multiplexer 20-LCCC -55 to 125 |
| MAX6677AUT3 | Low-Voltage, 1.8kHz PWM Output Temperature Sensors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6677AUT3+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX6677AUT3+T | 功能描述:板上安裝溫度傳感器 Sensors, Transducers RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| MAX6677AUT3-T | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| MAX6678AEP90 | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| MAX6678AEP90-T | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
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