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参数资料
| 型号： | DS1620K |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/12页 |
| 文件大小： | 0K |
| 描述： | KIT DIGITAL THERMOMETER/STAT DIG |
| 标准包装： | 49 |
DS1620
Table 3 describes the exact relationship of output data to measured temperature.
.
TEMPERATURE/DATA RELATIONSHIPS Table 3
TEMP
+125 ? C
+25 ? C
+? ? C
+0 ? C
-? ? C
-25 ? C
-55 ? C
DIGITAL OUTPUT
(Binary)
0 11111010
0 00110010
0 00000001
0 00000000
1 11111111
1 11001110
1 10010010
DIGITAL OUTPUT
(Hex)
00FA
0032h
0001h
0000h
01FFh
01CEh
0192h
Higher resolutions may be obtained by reading the temperature, and truncating the 0.5°C bit (the LSB)
from the read value. This value is TEMP_READ. The value left in the counter may then be read by
issuing a READ COUNTER command. This value is the count remaining (COUNT_REMAIN) after the
gate period has ceased. By loading the value of the slope accumulator into the count register (using the
READ SLOPE command), this value may then be read, yielding the number of counts per degree C
(COUNT_PER_C) at that temperature. The actual temperature may be then be calculated by the user
using the following:
TEMPERATURE=TEMP_READ-0.25 +
(COUNT_PER _C - COUNT_REMAIN)
COUNT_PER_ C
OPERATION–THERMOSTAT CONTROLS
Three thermally triggered outputs, T HIGH , T LOW , and T COM , are provided to allow the DS1620 to be used
as a thermostat, as shown in Figure 3. When the DS1620’s temperature meets or exceeds the value stored
in the high temperature trip register, the output T HIGH becomes active (high) and remains active until the
DS1620’s measured temperature becomes less than the stored value in the high temperature register, TH.
The T HIGH output can be used to indicate that a high temperature tolerance boundary has been met or
exceeded, or it can be used as part of a closed loop system to activate a cooling system and deactivate it
when the system temperature returns to tolerance.
The T LOW output functions similarly to the T HIGH output. When the DS1620’s measured temperature
equals or falls below the value stored in the low temperature register, the T LOW output becomes active.
T LOW remains active until the DS1620’s temperature becomes greater than the value stored in the low
temperature register, TL. The T LOW output can be used to indicate that a low temperature tolerance
boundary has been met or exceeded, or as part of a closed loop system it can be used to activate a heating
system and deactivate it when the system temperature returns to tolerance.
The T COM output goes high when the measured temperature meets or exceeds TH, and will stay high until
the temperature equals or falls below TL. In this way, any amount of hysteresis can be obtained.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1620R | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Self?Heating Temperature Sensor |
| DS1620S | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| DS1620S/T&R | 制造商:Maxim Integrated Products 功能描述:DIGITAL THERM. 8P SO 208M TRL - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERMOMETER/STAT DIG 8-SOIC |
| DS1620S/T&R | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| DS1620S+ | 功能描述:板上安装温度传感器 Digital Thermometer & Thermostat RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
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