參數(shù)資料
型號(hào): DS1620R
廠商: DALLAS SEMICONDUCTOR
元件分類: Switch/Digital Output Temperature Sensor
英文描述: DIGITAL TEMP SENSOR-SERIAL, 9BIT(s), RECTANGULAR, SURFACE MOUNT
封裝: 0.300 INCH, SO-16
文件頁(yè)數(shù): 1/11頁(yè)
文件大小: 17247K
代理商: DS1620R
1 of 11
102099
FEATURES
§ Requires no external components
§ Measures temperatures from -55°C to +125°C
in 0.5°C increments. Fahrenheit equivalent is
-67°F to 257°F in 0.9
°F increments
§ Temperature is read as a 9-bit value
§ Converts temperature to digital word in 200
ms, typically
§ Thermostatic settings are user-definable and
nonvolatile
§ Internal 50-ohm resistor provides self heating
§ Data is read from/written via a 3-wire serial
interface (CLK, DQ, RST )
§ Applications include thermostatic controls,
industrial systems, consumer products,
thermometers, or any thermally sensitive
system
§ 16-pin SOIC package
PIN ASSIGNMENT
PIN DESCRIPTION
DQ
- 3-Wire Input/Output
CLK/CONV
- 3-Wire Clock Input and
Standalone Convert Input
RST
- 3-Wire Reset Input
GND
- Ground
RA
- Connection to Internal 50
Resistor
RB
- Connection to Internal 50
Resistor
THIGH
- High Temperature Trigger
TLOW
- Low Temperature Trigger
TCOM
- High/Low Combination Trigger
VDD
- Power Supply Voltage (+5V)
DESCRIPTION
The DS1620R Self–Heating Temperature Sensor provides 9–bit temperature readings which indicate the
temperature of the device. The internal 50-ohm resistor acts as the self–heating element. Predictable self–
heating characteristics allow users to model temperature rise of active components in their system,
allowing monitoring of airflow and other thermal management parameters. With three thermal alarm
outputs, the DS1620R can also act as a thermostat. THIGH is driven high if the DS1620R’s temperature
exceeds a user-defined temperature TH. TLOW is driven high if the DS1620R’s temperature falls below a
user-defined temperature TL. TCOM is driven high when the temperature exceeds TH, and stays high until
the temperature falls below that of TL.
DS1620R
Self-Heating Temperature Sensor
www.dalsemi.com
DS1620R
16-Pin SOIC (300-MIL)
16
15
14
13
12
11
10
9
NC
RB
TCOM
TL
NC
TH
VDD
DQ
CLK/CONV
NC
RST
GND
RA
NC
1
2
3
4
5
6
7
8
相關(guān)PDF資料
PDF描述
DS1620 DIGITAL TEMP SENSOR-SERIAL, 9BIT(s), 0.50Cel, RECTANGULAR, SURFACE MOUNT
DS1620+ DIGITAL TEMP SENSOR-SERIAL, 9BIT(s), RECTANGULAR, SURFACE MOUNT
DS1620S/T&R DIGITAL TEMP SENSOR-SERIAL, 9BIT(s), RECTANGULAR, SURFACE MOUNT
DS1621S+T&R DIGITAL TEMP SENSOR-SERIAL, 9BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT
DS1621V+ DIGITAL TEMP SENSOR-SERIAL, 9BIT(s), RECTANGULAR, SURFACE MOUNT
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