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HTU21D Miniature Digital Relative Humidity And Temperature Sensor

Post Date:

2018/11/01 15:56:07

Expired Date:

2019/01/30 23:59:59

Trade Leads Category:

Humidity Sensors

Company Info

Shenzhen Week Technology Ltd.
Contact Person: Yan Zhang
Address: 16 Floor, Building #3, Zhongke Mansion, Gaoxin South 1St Rd, Hi-Tech Park, Nanshan
City: SHENZHEN
State/Province: GUANGDONG
Country/Region: China (mainland)
Zip/Post Code: 518067


Details

HTU21D - Digital Relative Humidity and Temperature Sensor DESCRIPTION 
HTU21D, the new humidity and temperature sensor of MEAS is about to set new standards in terms of size and intelligence: Embedded in a reflow solderable Dual Flat No leads (DFN) package of 3 x 3mm foot print and 1mm height it provides calibrated, linearized signals in digital, I2C format.

HTU21D sensors are dedicated humidity and temperature plug and play transducers for OEM applications where reliable and accurate measurements are needed. Direct interface with a micro-controller is made possible with the module humidity and temperature digital outputs. HTU21D sensors are low power consumption designed for high volume and cost sensitive applications with tight space constraints.


HTU21D - Digital Relative Humidity and Temperature Sensor Characteristic

   • DFN type package
   • Relative Humidity and Temperature Digital Output, I2C interface
   • Fully calibrated
   • Lead free sensor, reflow solderable
   • Low power consumption
   • Fast response time

HTU21D - Digital Relative Humidity and Temperature Sensor FEATURES
• Full interchangeability with no calibration required in standard conditions  
• Instantaneous desaturation after long periods in saturation phase
• Compatible with automatized assembly processes, including Pb free and reflow processes
• Individual marking for compliance to stringent traceability requirement

HTU21D - Digital Relative Humidity and Temperature Sensor APPLICATIONS 
• Automotive: defogging, HVAC
• Home Appliance
• Medical
• Printers
• Humidifier

 

HTU21D - Digital Relative Humidity and Temperature Sensor PERFORMANCE SPECS

MAXIMUM RATINGS

Ratings

Symbol

Value

Unit

Storage Temperature

Tstg

-40 to 125

°C

Supply Voltage (Peak)

Vcc

3.8V

Vdc

Humidity Operating Range

RH

0 to 100

%RH

Temperature Operating Range

Ta

-40 to +125

°C

VDD to GND

 

-0.3 to 3.6V

V

Digital I/O pins (DATA/SCK) to VDD

 

-0.3 to VDD+0.3

V

Input current on any pin

 

-10 to +10

mA

 Peak conditions: less than 10% of the operating time

 

ELECTRICAL AND GENERAL ITEMS
(@T = 25°C, @Vdd = 3V) 

Characteristics

Symbol

Min

Typ

Max

Unit

Voltage Supply

VDD

1.8

3.0

3.6

V

Current consumption(1)

Sleep mode

idd

 

0.08

0.3

μA

Measuring

300

450

500

μA

Power Dissipation

Sleep mode

 

 

0.25

1.1

μW

Average 8bit(2)

 

 

2.7

 

μW

Communication

digital 2-wire interface I2C protocol

Heater

VDD=3V

5.5mW/△T=+0.5-1.5°C

Storage

-40°C /125°C

(1)Conditions: Vdd = 3V, SCK= 400kHz at 25°C
(2)Conditions: Vdd = 3V, SCK= 400kHz, Temp<60°C

 

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