參數(shù)資料
型號(hào)： DS18B20U+T&R
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： Switch/Digital Output Temperature Sensor
英文描述： DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, SQUARE, SURFACE MOUNT
封裝： LEAD FREE, USOP-8
文件頁(yè)數(shù)： 11/22頁(yè)
文件大?。?/td> 255K
代理商： DS18B20U+T&R
DS18B20
19 of 22
ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground ..................................................................-0.5V to +6.0V
Operating Temperature Range .......................................................................................-55
°C to +125°C
Storage Temperature Range...........................................................................................-55
°C to +125°C
Solder Temperature .....................................................Refer to the IPC/JEDEC J-STD-020 Specification.
These are stress ratings only and functional operation of the device at these or any other conditions
above those indicated in the operation sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods of time may affect reliability.
DC ELECTRICAL CHARACTERISTICS
(-55°C to +125°C; VDD=3.0V to 5.5V)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
NOTES
Supply Voltage
VDD
Local Power
+3.0
+5.5
V
1
Pullup Supply
Voltage
VPU
Parasite Power
+3.0
+5.5
V
1,2
Local Power
+3.0
VDD
Thermometer
Error
tERR
-10°C to +85°C
±0.5
°C
3
-55°C to +125°C
±2
Input Logic-Low
VIL
-0.3
+0.8
V
1,4,5
Input Logic-High
VIH
Local Power
+2.2
The lower of
5.5
or
VDD + 0.3
V
1, 6
Parasite Power
+3.0
Sink Current
IL
VI/O = 0.4V
4.0
mA
1
Standby Current
IDDS
750
1000
nA
7,8
Active Current
IDD
VDD = 5V
1
1.5
mA
9
DQ Input Current
IDQ
5
A
10
Drift
±0.2
°C
11
NOTES:
1) All voltages are referenced to ground.
2) The Pullup Supply Voltage specification assumes that the pullup device is ideal, and therefore the
high level of the pullup is equal to VPU. In order to meet the VIH spec of the DS18B20, the actual
supply rail for the strong pullup transistor must include margin for the voltage drop across the
transistor when it is turned on; thus: VPU_ACTUAL = VPU_IDEAL + VTRANSISTOR.
3) See typical performance curve in Figure 17.
4) Logic-low voltages are specified at a sink current of 4mA.
5) To guarantee a presence pulse under low voltage parasite power conditions, VILMAX may have to be
reduced to as low as 0.5V.
6) Logic-high voltages are specified at a source current of 1mA.
7) Standby current specified up to +70
°C. Standby current typically is 3A at +125°C.
8) To minimize IDDS, DQ should be within the following ranges: GND ≤ DQ ≤ GND + 0.3V or
VDD – 0.3V ≤ DQ ≤ VDD.
9) Active current refers to supply current during active temperature conversions or EEPROM writes.
10) DQ line is high (“high-Z” state).
11) Drift data is based on a 1000-hour stress test at +125°C with VDD = 5.5V.
相關(guān)PDF資料
PDF描述
DS18B20-SL+T&R DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, THROUGH HOLE MOUNT
DS18B20/T&R DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, THROUGH HOLE MOUNT
DS18B20U DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, SQUARE, SURFACE MOUNT
DS18B20U/T&R DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, SQUARE, SURFACE MOUNT
DS18S20-PAR/T&R DIGITAL TEMP SENSOR-SERIAL, 9BIT(s), 0.50Cel, ROUND, THROUGH HOLE MOUNT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS18B20-W 制造商:Maxim Integrated Products 功能描述:
DS18B20X 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
DS18B20X/T&R 制造商:Maxim Integrated Products 功能描述:THE MAXIM DS18B20X/T&R IS A TEMPERATURE SENSOR. - Tape and Reel 制造商:Maxim Integrated Products 功能描述:Maxim DS18B20X/T&R, Digital Thermometer 9bit-to-12bit -55C to +125C 3V-5.5V
DS18B20X/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(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
DS18B20Z 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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