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參數資料
| 型號： | MAX6648 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Quadruple 2-Input Positive-NAND Gate 14-CDIP -55 to 125 |
| 中文描述： | 高精度、SMBus兼容、遠端/本地溫度傳感器，帶有高溫報警 |
| 文件頁數： | 14/17頁 |
| 文件大?。?/td> | 280K |
| 代理商： | MAX6648 |
M
Precision SMBus-Compatible Remote/Local
Temperature Sensors with Overtemperature Alarms
14
______________________________________________________________________________________
When measuring temperature with discrete remote sen-
sors, smaller packages, such as SOT23s, yield the best
thermal response times. Take care to account for ther-
mal gradients between the heat source and the sensor,
and ensure that stray air currents across the sensor
package do not interfere with measurement accuracy.
Self-heating does not significantly affect measurement
accuracy. Remote-sensor self-heating due to the diode
current source is negligible. For the local diode, the
worst-case error occurs when autoconverting at the
fastest rate and simultaneously sinking maximum current
at the
ALERT
output. For example, with V
CC
= 5.0V, at a
4Hz conversion rate and with
ALERT
sinking 1mA, the
typical power dissipation is:
5.0V x 500μA + 0.4V x 1mA = 2.9mW
J-A
for the 8-pin μMAX package is about +221
°
C/W,
so assuming no copper PC board heat sinking, the
resulting temperature rise is:
T = 2.9mW x (+221
°
C/W) = +0.6409
°
C
Even under nearly worst-case conditions, it is difficult to
introduce a significant self-heating error.
MUX
REMOTE
LOCAL
ADC
2
CONTROL
LOGIC
SMBus
READ
WRITE
8
8
ADDRESS
DECODER
7
S
R
Q
DIODE
FAULT
DXP
DXN
SMBCLK
SMBDATA
REGISTER BANK
COMMAND BYTE
REMOTE TEMPERATURE
LOCAL TEMPERATURE
ALERT THRESHOLD
ALERT RESPONSE ADDRESS
V
CC
S
R
Q
OVERT
ALERT
MAX6648
MAX6692
OVERT THRESHOLD
Functional Diagram
相關PDF資料 |
PDF描述 |
|---|---|
| MAX6648-MAX6692 | 10 AMP MINIATURE POWER RELAY |
| MAX6692MSA | Precision SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms |
| MAX6692MUA | Precision SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms |
| MAX6692 | Precision SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms |
| MAX6648MUA | Precision SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX6648MUA | 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: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| MAX6648MUA+ | 功能描述:板上安裝溫度傳感器 145C SMBus-Comp Remote/Local Sensor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| MAX6648MUA+T | 功能描述:板上安裝溫度傳感器 145C SMBus-Comp Remote/Local Sensor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| MAX6648MUA-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: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| MAX6648YMUA+ | 功能描述:板上安裝溫度傳感器 145C SMBus-Comp Remote/Local Sensor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
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