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HDC2021 Datasheet Low-Power Humidity and Temperature Sensor

Manufacturer: Texas Instruments

General Description

The HDC2021 is an integrated relative humidity and temperature sensor with a factory-installed polyimide tape cover over the opening of the relative humidity sensor element.

The tape cover provides protection against pollutants that can appear in certain stages of the manufacturing process, such as SMT assembly, PCB board wash, and conformal coating.

The tape design allows for a full conformal coating of the PCB, and includes an adhesive free corner tab for quick removal using tweezers.

Overview

www.ti.com HDC2021 SNAS773A – DECEMBER 2019 – REVISEDHJDUNCE22002210 SNAS773A – DECEMBER 2019 – REVISED JUNE 2020 HDC2021 High-Accuracy, Low-Power Humidity and Temperature Sensor With Assembly Protection Cover.

Key Features

  • Factory-installed polyimide tape to protect sensor during assembly.
  • RH measurement range: 0% to 100%.
  • Temperature measurement range:.
  • 40°C to 125°C.
  • Humidity accuracy: ±2% (typical), ±3% (maximum).
  • Temperature accuracy: ±0.2°C (typical), ±0.4°C (maximum).
  • Supply voltage range: 1.62 V to 3.6 V.
  • I2C interface compatibility.
  • 50 nA sleep mode current.
  • 550 nA average supply current (11-bit accuracy option, 1 me.