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參數(shù)資料
| 型號： | DS1620S |
| 元件分類： | 溫度傳感器 |
| 英文描述： | IC-SM-DIGITAL THERMOMETER |
| 中文描述： | 集成電路釤數(shù)字溫度計 |
| 文件頁數(shù)： | 4/13頁 |
| 文件大?。?/td> | 539K |
| 代理商： | DS1620S |
DS1620
4 of 13
words, with the most significant 7 bits being ignored or set to 0, as illustrated in Table 1. After the MSB,
the DS1620 will output 0s.
Note that temperature is represented in the DS1620 in terms of a
°
C LSB, yielding the following 9–bit
format:
MSB
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 +
C
COUNT_PER_
IN)
COUNT_REMA
-
_C
(COUNT_PER
DETAILED PIN DESCRIPTION
Table 2
PIN
SYMBOL
1
DQ
Data Input/Output pin
for 3-wire communication port.
2
CLK/
CONV
Clock input pin
for 3-wire communication port. When the DS1620 is used in a
stand-alone application with no 3–wire port, this pin can be used as a convert
pin. Temperature conversion will begin on the falling edge of
CONV
.
3
RST
Reset input pin
for 3-wire communication port.
4
GND
Ground pin.
5
T
COM
High/Low Combination Trigger
. Goes high when temperature exceeds TH;
will reset to low when temperature falls below TL.
6
T
LOW
Low Temperature Trigger.
Goes high when temperature falls below TL.
7
T
HIGH
High Temperature Trigger.
Goes high when temperature exceeds TH.
8
V
DD
Supply Voltage.
2.7V – 5.5V input power pin.
DESCRIPTION
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
X
X
X
X
X
X
X
1
1
1
0
0
1
1
1
0
LSB
T = -25°C
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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(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: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| DS1620S+ | 功能描述:板上安裝溫度傳感器 Digital Thermometer & Thermostat 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(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: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| DS1620S+T&R | 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 3-WIRE 8SOIC - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERMOMETER/STAT DIG 8-SOIC 制造商:Maxim Integrated Products 功能描述:Board Mount Temperature Sensors Digital Thermometer & Thermostat |
| DS1620S+T&R/C01 | 制造商:Maxim Integrated Products 功能描述:DIGITAL THERMOMETER AND THERMOSTAT - Tape and Reel |
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