HTU21D TE Connectivity

HTU21D(F) RH/T SENSOR IC Digital Relative Humidity sensor with Temperature output DFN type package Relative Humidity and Temperature Digital Output, IC interface Fully calibrated Lead free sensor, reflow solderable Low power consumption Fast response time The HTU21D(F) is a new digital humidity sensor with temperature output by MEAS. Setting new standards in terms of size and intelligence, it is embedded in a reflow solderable Dual Flat No leads (DFN) package with a small 3 x 3 x 0.9 mm footprint. This sensor provides calibrated, linearized signals in digital, IC format. FEATURES HTU21D(F) digital humidity sensors are dedicated humidity and temperature plug and play transducers for OEM applications where Full interchangeability with no calibration reliable and accurate measurements are needed. Direct interface with a required in standard conditions micro-controller is made possible with the module for humidity and Instantaneous desaturation after long periods in temperature digital outputs. These low power sensors are designed for saturation phase high volume and cost sensitive applications with tight space constraints. Compatible with automatized assembly Every sensor is individually calibrated and tested. Lot identification is processes, including Pb free and reflow printed on the sensor and an electronic identification code is stored on processes the chip which can be read out by command. Low battery can be Individual marking for compliance to stringent detected and a checksum improves communication reliability. The traceability requirements resolution of these digital humidity sensors can be changed by command (8/12bit up to 12/14bit for RH/T). APPLICATIONS With MEAS improvements and miniaturization of this sensor, the Home Appliance performance-to-price ratio has been improved and eventually, any device should benefit from its cutting-edge energy saving operation Medical mode. Printers Optional PTFE filter/membrane (F) protects HTU21D digital humidity Humidifier sensors against dust and water immersion, as well as against contamination by particles. PTFE filter/membranes preserve a high response time. The white PTFE filter/membrane is directly stuck on the sensor housing. This membrane is allowing an IP67 compliant protection. TE CONNECTIVITY SENSORS /// HTU21D(F) RH/T SENSOR IC 05/2017 Page 1 HTU21D(F) RH/T SENSOR IC Digital Relative Humidity sensor with Temperature output NOMENCLATURE HTU2XY(F) With embedded PTFE filter: HTU2XYF Output Sensor: Y = D/A for Digital, I2C protocol = P for PWM interface, analog output Humidity accuracy : X = 0: +/-5%RH max tolerance 55%RH = 1: +/-3%RH max tolerance 55%RH HTU2XY Modules HTU2XYF Modules PERFORMANCE SPECS Maximum Ratings Ratings Symbol Value Unit Storage Temperature T -40 to 125 C stg Supply Voltage (Peak) Vcc 3.8V Vdc Humidity Operating Range RH 0 to 100 %RH Temperature Operating Range Ta -40 to +125 C -0.3 to 3.6V V VDD to GND -0.3 to VDD+0.3 V Digital I/O pins (DATA/SCK) to VDD -10 to +10 mA Input current on any pin Graph above show peak conditions: less than 10% of the operating life Exposure to absolute maximum rating conditions for extended periods may affect the sensor reliability. TE CONNECTIVITY SENSORS /// HTU21D(F) RH/T SENSOR IC 05/2017 Page 2