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HTU21D

Description
Humidity Sensor Digital Serial (2-Wire, I2C) Automotive 6-Pin DFN EP T/R
File Size486KB,14 Pages
ManufacturerTE Connectivity
Websitehttp://www.te.com
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Humidity Sensor Digital Serial (2-Wire, I2C) Automotive 6-Pin DFN EP T/R

HTU21D Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
Part StatusActive
Module/IC ClassificationModule
Resolution (bit)12
Accuracy±3%RH
Interface TypeSerial (2-Wire, I2C)
Output TypeDigital
Minimum Operating Supply Voltage (V)1.5
Typical Operating Supply Voltage (V)3
Maximum Operating Supply Voltage (V)3.6
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)125
PackagingTape and Reel
Supplier PackageDFN EP
Pin Count6
Standard Package NameDFN
MountingSurface Mount
Package Height0.9
Package Length3
Package Width3
PCB changed6
Lead ShapeNo Lead
HTU21P(F) RH/T SENSOR IC
Miniature Relative Humidity and Temperature
SPECIFICATIONS
DFN type package
Relative Humidity and Temperature Analog Output,
PWM interface
Fully calibrated
Lead free sensor, reflow solderable
Low power consumption
Fast response time
HTU21P(F) is a new humidity and temperature sensor by
MEAS.Setting new standards in terms of size and intelligence, it
is embedded in a reflow solderable Dual Flat No leads (DFN)
package of 3 x 3 x 0.9 mm foot print. This sensor provides
calibrated, linearized signals in analog pulse width modulated
(PWM) format.
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 requirements
HTU21P(F) humidity sensors are dedicated humidity and
temperature plug and play transducers for OEM applications
where reliable and accurate measurements are needed. These
low power sensors are designed for high volume and cost
sensitive applications with tight space constraints.
PWM signal runs on a base frequency of 120Hz, the data signal
is provided on SDA line. Pulling SCL high or low allows for
switching between humidity and temperature, respectively. The
sensor measures twice per second. The PWM signal may be
converted to an analog ratiometric interface by adding a low pass
filter.
With MEAS’ improvements
and miniaturization of the sensor, the
performance-to-price ratio has been improved
and eventually,
any device should benefit from the cutting edge energy saving
operation mode. HTU21 is also available with digital I²C
(HTU21D(F)).
Optional PTFE filter/membrane (F) protects HTU21P analog
humidity sensors against dust and water immersion, as well as
against contamination by particles. PTFE filter/membrane
preserves a high response time. The white PTFE
filter/membrane is directly stuck on the sensor housing. This
membrane is allowing an IP67 compliance protection.
APPLICATIONS
Automotive: defogging, HVAC
Home Appliance
Medical
Printers
Humidifier
SENSOR SOLUTIONS
/// HPC200_5 HTU21P(F)
05/2017
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