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Temperature Sensor. HDC3020 Datasheet

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Temperature Sensor. HDC3020 Datasheet






HDC3020 Sensor. Datasheet pdf. Equivalent




HDC3020 Sensor. Datasheet pdf. Equivalent





Part

HDC3020

Description

Digital Humidity and Temperature Sensor



Feature


ADVANCE INFORMATION HDC3020 SNAS778 – JUNE 2021 HDC302x High-Accuracy, Low-P ower, Digital Humidity and Temperature Sensor With Ultra-Low Drift 1 Features • Relative humidity (RH) sensor: Operating range: 0% to 100% – Accur acy: ±1.5% typical – Drift Correctio n: reduces offset to return device to w ithin accuracy specification – Long-t erm drift: 0.21%RH/yr – Condens.
Manufacture

Texas Instruments

Datasheet
Download HDC3020 Datasheet


Texas Instruments HDC3020

HDC3020; ation protection with integrated heater • Temperature sensor: – Operating r ange: -40°C to 125°C – Accuracy: ± 0.1°C typical • NIST traceability: R elative humidity & temperature • Low power: average current 0.7 µA • I2C interface compatibility up to 1-Mhz spe eds – Four selectable I2C addresses Command/data protection through CRC checksum • Supply voltage: 1.62 V to 5..


Texas Instruments HDC3020

50 V • Available auto measurement mode • Programmable interrupts • Progra mmable measurement calibration • Fact ory-installed polyimide tape assembly c over • Factory-installed IP67 rated e nvironmental cover 2 Applications • Washer & dryer • Refrigerator & freez er • Industrial transport • Cold Ch ain asset tracking & data logger • Io T environmental sensors • Air quality .


Texas Instruments HDC3020

and gas detection • Humidifier/dehumid ifier • Thermostat • CPAP and venti lator • Water leak detector • IP Ca mera RH Sensor T Sensor HDC3 Calibra tion ADC Linearization 3.30 V VDD V DD SCL SDA ALERT I2C ADDR ADDR1 I2C C ontroller GPIO µC RESET GND GND Typ ical Application 3 Description The HD C302x is an integrated capacitive based relative humidity (RH) and t.

Part

HDC3020

Description

Digital Humidity and Temperature Sensor



Feature


ADVANCE INFORMATION HDC3020 SNAS778 – JUNE 2021 HDC302x High-Accuracy, Low-P ower, Digital Humidity and Temperature Sensor With Ultra-Low Drift 1 Features • Relative humidity (RH) sensor: Operating range: 0% to 100% – Accur acy: ±1.5% typical – Drift Correctio n: reduces offset to return device to w ithin accuracy specification – Long-t erm drift: 0.21%RH/yr – Condens.
Manufacture

Texas Instruments

Datasheet
Download HDC3020 Datasheet




 HDC3020
HDC3020
SNAS778 – JUNE 2021
HDC302x High-Accuracy, Low-Power, Digital Humidity and Temperature Sensor With
Ultra-Low Drift
1 Features
• Relative humidity (RH) sensor:
– Operating range: 0% to 100%
– Accuracy: ±1.5% typical
– Drift Correction: reduces offset to return device
to within accuracy specification
– Long-term drift: 0.21%RH/yr
– Condensation protection with integrated heater
• Temperature sensor:
– Operating range: -40°C to 125°C
– Accuracy: ±0.1°C typical
• NIST traceability: Relative humidity & temperature
• Low power: average current 0.7 µA
• I2C interface compatibility up to 1-Mhz speeds
– Four selectable I2C addresses
– Command/data protection through CRC
checksum
• Supply voltage: 1.62 V to 5.50 V
• Available auto measurement mode
• Programmable interrupts
• Programmable measurement calibration
• Factory-installed polyimide tape assembly cover
• Factory-installed IP67 rated environmental cover
2 Applications
• Washer & dryer
• Refrigerator & freezer
• Industrial transport
• Cold Chain asset tracking & data logger
• IoT environmental sensors
• Air quality and gas detection
• Humidifier/dehumidifier
• Thermostat
• CPAP and ventilator
• Water leak detector
• IP Camera
RH Sensor
T Sensor
HDC3
Calibration
ADC
Linearization
3.30 V
VDD
VDD
SCL
SDA
ALERT
I2C
ADDR
ADDR1
I2C
Controller
GPIO
µC
RESET
GND
GND
Typical Application
3 Description
The HDC302x is an integrated capacitive based
relative humidity (RH) and temperature sensor, which
provides high accuracy measurements over a wide
supply range (1.62 V – 5.5 V), along with ultra-low
power consumption in a compact 2.5-mm × 2.5-mm
package. Both the temperature and humidity sensors
are 100% tested and trimmed on a production setup
that is NIST traceable and verified with equipment that
is calibrated to ISO/IEC 17025 standards.
Drift Correction reduces RH sensor offset due to
aging, exposure to extreme operating conditions, and
contaminants to return device to within accuracy
specifications. For battery IoT applications, auto
measurement mode and ALERT feature enable low
system power by maximizing MCU sleep time. There
are four different I2C addresses that support speeds
up to 1 MHz. A heating element is available to
dissipate condensation and moisture.
The HDC3020 comes in an open cavity package
without a protective cover. Two device variants have
a cover option to protect the open cavity RH sensor:
HDC3021 and HDC3022. HDC3021 has removable
protective tape to allow conformal coatings and
PCB wash. HDC3022 has a permanent IP67 filter
membrane cover to protect against dust and water.
Device Information
PART NUMBER
PACKAGE(1)
BODY SIZE (NOM)
HDC3020
HDC3021(2)
HDC3022(2)
WSON (8)
2.50 mm × 2.50 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
(2) Preview only.
Typical RH Accuracy vs. RH Setpoint (TA = 25°C)
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. ADVANCE INFORMATION for preproduction products; subject to change
without notice.




 HDC3020
HDC3020
SNAS778 – JUNE 2021
www.ti.com
Table of Contents
1 Features............................................................................1
2 Applications..................................................................... 1
3 Description.......................................................................1
4 Revision History.............................................................. 2
5 Pin Configuration and Functions...................................3
6 Specifications.................................................................. 4
6.1 Absolute Maximum Ratings ....................................... 4
6.2 ESD Ratings .............................................................. 4
6.3 Recommended Operating Conditions ........................4
6.4 Thermal Information ...................................................4
6.5 Electrical Characteristics ............................................5
6.6 Switching Characteristics ...........................................7
6.7 Timing Diagram...........................................................7
6.8 Typical Characteristics................................................ 8
7 Detailed Description........................................................9
7.1 Overview..................................................................... 9
7.2 Functional Block Diagram........................................... 9
7.3 Feature Description.....................................................9
7.4 Device Functional Modes..........................................12
7.5 Programming............................................................ 12
8 Application and Implementation.................................. 29
8.1 Application Information............................................. 29
8.2 Typical Application.................................................... 29
9 Power Supply Recommendations................................32
10 Layout...........................................................................32
10.1 Layout Guidelines................................................... 32
10.2 Layout Example...................................................... 33
10.3 Storage and PCB Assembly................................... 33
11 Device and Documentation Support..........................35
11.1 Documentation Support.......................................... 35
11.2 Receiving Notification of Documentation Updates.. 35
11.3 Support Resources................................................. 35
11.4 Trademarks............................................................. 35
11.5 Electrostatic Discharge Caution.............................. 35
11.6 Glossary.................................................................. 35
12 Mechanical, Packaging, and Orderable
Information.................................................................... 35
12.1 Package Option Addendum.................................... 45
12.2 Tape and Reel Information......................................47
4 Revision History
DATE
June 2021
VERSION
*
NOTES
Initial release.
2
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Product Folder Links: HDC3020
Copyright © 2021 Texas Instruments Incorporated




 HDC3020
www.ti.com
5 Pin Configuration and Functions
HDC3020
SNAS778 – JUNE 2021
SDA
1
ADDR
2
ALERT
3
SCL
4
8
GND
7
ADDR1
6
RESET
5
V DD
Not to scale
1. DEF package has a transparent top.
2. HDC3021 DEH and HDC3022 DEJ packages are preview only.
Figure 5-1. HDC302x DEF, DEH, or DEJ Package 8-Pin WSON Top View
NAME
VDD
GND
SCL
SDA
PIN
NO.
5
8
4
1
ADDR
2
ADDR1
7
RESET
6
ALERT
3
TYPE(1)
Table 5-1. Pin Functions
DESCRIPTION
P
Supply Voltage. From 1.62 V to 5.50 V.
G
Ground
I
Serial clock line for I2C, open-drain; requires a pullup resistor to VDD .
I/O
Serial data line for I2C, open-drain; requires a pullup resistor to VDD.
I2C Device Address Pin.
I
For device addresses 0x44 and 0x45, ADDR1 voltage must be below maximum VIL or left floating.
0x44 requires ADDR voltage to be below maximum VIL or left floating.
0x45 requires ADDR voltage to be above minimum VIH.
I2C Device Address Pin.
I
For device addresses 0x46 and 0x47, ADDR1 voltage must be above minimum VIH.
0x46 requires ADDR voltage to be below maximum VIL or left floating.
0x47 requires ADDR voltage to be above minimum VIH.
I
Reset Pin. Active Low. If not used, leave floating or tie to VDD.
O
Interrupt Pin to drive high impedance loads. Push-Pull Output.
If not used, must be left floating.
(1) Type:
G = Ground
I = Input
O = Output
P = Power
Copyright © 2021 Texas Instruments Incorporated
Product Folder Links: HDC3020
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