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Texas Instruments HDC2022DEPR
- Part No.:
- HDC2022DEPR
- Manufacturer:
- Texas Instruments
- Category:
- Humidity, Moisture Sensors
- Package:
- 6-TDFN Exposed Pad
- Datasheet:
-
HDC2022DEPR.pdf
- Description:
- SENSOR MULT HUMIDITY/TEMP
- Quantity:
- Payment:
- Shipping:
Inventory:7,015
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Product details
Overview
HDC2022DEPR from Texas Instruments is a high-accuracy, low-power digital humidity and temperature sensor with factory-installed IP67-rated PTFE membrane cover for dust/water protection. It delivers ±2% RH (typical) and ±0.2°C (typical) accuracy across –40°C to 125°C temperature range and 0–100% RH range, operating from 1.62 V to 3.6 V, and supports I²C interface - used in thermostats, HVAC transmitters, and battery-powered environmental monitors.
For engineers reviewing the HDC2022DEPR datasheet, HDC2022DEPR pinout, HDC2022DEPR application, or HDC2022DEPR equivalent, key selection considerations include its integrated heater for condensation mitigation, programmable interrupt thresholds (TH/TL/HH/HL), 50 nA sleep current, backward compatibility with HDC2080, and WSON-6 package with 3.00 mm × 3.00 mm footprint.
Technical Context
The HDC2022DEPR integrates capacitive RH sensing and CMOS temperature sensing on a single die, with on-chip 14-bit ADCs, calibration memory, and configurable accuracy options (9/11/14 bits per sensor). Its IP67 PTFE cover maintains <6 s RH response time while providing 99.99% filtration down to 100 nm particles.
It supports two measurement modes: one-shot (I²C-triggered, auto-return to 50 nA sleep) and continuous conversion (7 selectable sampling rates, 1/120 s to 5/1 s). The integrated heater draws 90 mA at 3.3 V and enables dew-point mitigation without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RH Accuracy | ±2% RH typical (20–80% RH, 0–60°C); enables reliable indoor climate control without recalibration |
| Temp Accuracy | ±0.2°C typical (10–35°C); supports precision thermal management in HVAC controllers |
| Supply Voltage | 1.62 V to 3.6 V; compatible with single-cell Li-ion, coin cell, and 1.8/3.3 V system rails |
| Sleep Current | 50 nA typical; extends battery life to multi-year operation in wireless sensors |
| I²C Interface | Standard-mode (400 kHz max); interoperable with common microcontrollers without level-shifting |
| IP Rating | IP67 with factory-applied PTFE cover; eliminates need for custom enclosures in washers/dryers or outdoor HVAC units |
| Heater Current | 90 mA at 3.3 V; rapidly clears condensation without requiring external FET or driver circuitry |
Pinout & Package
Package: 6-pin WSON (DEP), 3.00 mm × 3.00 mm body size, exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SDA | I/O (open-drain) | Serial data line for I²C; requires external pull-up resistor; supports standard/fast-mode timing |
| GND | Ground | Reference return path for analog and digital circuits; must be low-impedance connection to PCB ground plane |
| ADDR | Input | Device I²C address select: GND/floating = 0x40, VDD = 0x41; enables dual-sensor configurations on same bus |
| DRDY/INT | Output (push-pull) | Configurable interrupt/data-ready signal; supports active-high/low polarity and threshold or DRDY event reporting |
| VDD | Power | Primary supply input; includes internal POR circuitry with 1.4 V threshold; decoupling capacitor required |
| SCL | Input | Serial clock line for I²C; accepts 10–400 kHz; timing compliant with JEDEC Std JESD88-A |
Key Features
| Feature | Design Value |
|---|---|
| Factory IP67 PTFE Cover | Maintains full RH/temperature accuracy while blocking dust and water ingress - no field assembly or adhesive required |
| Programmable Accuracy Modes | Select 9/11/14-bit resolution per sensor to trade off conversion time (254–640 µs) vs. power (0.55–0.89 µA avg) |
| Integrated Heater | On-die resistive element enables self-cleaning of condensate; controlled via register bit without external components |
| Multi-Threshold Interrupts | Four independent thresholds (TH/TL/HH/HL) with priority-based DRDY/INT output - reduces MCU polling overhead |
| Backward Compatibility | Pin- and register-compatible with HDC2080; allows drop-in upgrade path with enhanced IP67 protection |
Applications
| Thermostats | Smart Speakers |
|---|---|
Use Scenario: Indoor ambient sensing in wall-mounted HVAC control units exposed to seasonal humidity swings and occasional cleaning sprays. IC Role / Device Role / Timing Role: Primary RH/temperature sensing element with direct I²C interface to application MCU; provides real-time feedback for PID loop control. Use Value: IP67 cover prevents moisture-induced drift during humidifier use or accidental spray exposure, maintaining ±2% RH accuracy over product lifetime. | Use Scenario: Voice assistant devices placed near kitchens or bathrooms where steam and condensation risk is elevated. IC Role / Device Role / Timing Role: Environmental monitor triggering adaptive audio processing (e.g., voice gain adjustment based on humidity-induced acoustic changes). Use Value: Integrated heater activates automatically upon dew-point detection, clearing condensation before it affects microphone performance or sensor reliability. |
| Washers & Dryers | HVAC Sensor Transmitters |
Use Scenario: Embedded in drum or vent assemblies where high humidity, detergent vapors, and mechanical vibration occur. IC Role / Device Role / Timing Role: Closed-loop humidity feedback for moisture-sensing dry cycles; communicates via I²C to main controller. Use Value: PTFE membrane blocks detergent aerosols and lint while preserving <6 s RH response - enabling precise end-of-cycle detection. | Use Scenario: DIN-rail mounted environmental transmitter in commercial HVAC ducts subject to dust, airflow, and wide temperature excursions. IC Role / Device Role / Timing Role: Core sensing element in analog/digital hybrid transmitter; outputs calibrated digital RH/temp over I²C to signal conditioning ASIC. Use Value: 125°C max operating temperature and –40°C cold-start capability ensure reliable operation across duct environments; 50 nA sleep mode minimizes standby power in battery-backed units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar humidity and temperature sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HDC2080RGHT | No IP67 cover; identical pinout, register map, and electrical specs except for absence of PTFE membrane | Requires external enclosure or conformal coating for dust/moisture protection; unsuitable for unsealed consumer appliances | Select when cost sensitivity outweighs environmental robustness needs and board-level protection is already implemented |
| SHT45-DIS-B2.5kS | Higher RH accuracy (±0.8% typ), no integrated heater, IP54-rated package only, 2.5 kΩ pull-up recommended | Lacks condensation mitigation capability; better suited for clean-room or indoor office environments than laundry or HVAC ducts | Choose for ultra-high-accuracy lab-grade monitoring where heater functionality and IP67 are unnecessary |
Compared with HDC2022DEPR, HDC2080RGHT offers identical digital interface and power profile but lacks factory-installed environmental protection - requiring additional design effort for ruggedization. SHT45-DIS-B2.5kS delivers superior RH accuracy but omits both heater and IP67 rating, limiting deployment to benign environments.
Availability
HDC2022DEPR is available at Aetrix Electronics and suitable for thermostats, smart speakers, and HVAC sensor transmitters requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for HDC2022DEPR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The HDC2022DEPR belongs to TI's high-accuracy environmental sensor family, designed specifically for battery-operated, space-constrained systems needing robust, maintenance-free humidity and temperature monitoring in harsh physical environments.
FAQ
What is the IP67 protection rating of the HDC2022DEPR, and how is it implemented?
The HDC2022DEPR features a factory-installed hydrophobic microporous PTFE membrane that provides true IP67 ingress protection - blocking dust and immersion up to 1 m for 30 minutes. This cover is bonded directly over the RH sensor opening, maintains full 99.99% filtration efficiency down to 100 nm particles, and preserves the same <6 s RH response time as an uncovered sensor. No user assembly or adhesive is required, and the cover remains intact over lifetime operation.
Does the HDC2022DEPR support both one-shot and continuous measurement modes?
Yes, the HDC2022DEPR supports both one-shot and continuous conversion modes. In one-shot mode, each measurement is initiated via I²C command and the device automatically returns to 50 nA sleep mode afterward. In continuous mode, the device wakes periodically based on a user-configurable sampling interval (from 1 sample every 2 minutes to 5 samples per second), eliminating repeated I²C polling. Both modes retain full configurability of accuracy (9/11/14-bit) and interrupt behavior.
How does the integrated heater in the HDC2022DEPR function, and what are its electrical requirements?
The HDC2022DEPR includes an on-die heater controllable via register bit. At 3.3 V supply, it draws 90 mA (typical) and raises local temperature to evaporate condensate on the RH sensor surface. It operates within a safe junction limit of 100°C and can be triggered by firmware upon dew-point detection. The heater does not remove dissolved contaminants, so proper handling and contamination avoidance remain essential. Its activation is fully software-defined and requires no external components.
Is the HDC2022DEPR pin-compatible with other sensors in Texas Instruments' humidity portfolio?
Yes, the HDC2022DEPR is backward-compatible with the HDC2080RGHT - sharing identical pinout, I²C address scheme (0x40/0x41), register map, and electrical interface specifications. The only hardware difference is the factory-applied IP67 PTFE cover on the HDC2022DEPR. This allows direct replacement in existing HDC2080 designs without PCB or firmware changes, adding environmental robustness with zero layout impact.
What are the absolute maximum ratings for the HDC2022DEPR supply voltage and operating temperature?
The HDC2022DEPR has an absolute maximum supply voltage (VDD) of 3.9 V and minimum of –0.3 V. Its absolute maximum junction temperature is 150°C, with recommended operating free-air temperature ranging from –40°C to 125°C for the temperature sensor and –20°C to 70°C for the RH sensor. Storage temperature is rated from –65°C to 150°C. Exceeding these limits may cause permanent damage, and prolonged operation beyond recommended RH ranges (20–80% non-condensing) may induce slow recovery or reading shift.
HDC2022DEPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-TDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Sensor Type:
- Humidity, Temperature
- Humidity Range:
- 20 ~ 80% RH
- Output Type:
- I2C
- Output:
- 14b
- Accuracy:
- ±3% RH
- Response Time:
- 6 s
- Sensitivity:
- 300mV/%RH
- Voltage - Supply:
- 1.62V ~ 3.6V
- Mounting Type:
- Surface Mount
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 6-WSON (3x3)
HDC2022DEPR FAQ
1.How can I place an order for HDC2022DEPR through Aetrix?
Please submit a Request for Quotation (RFQ) for HDC2022DEPR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for HDC2022DEPR reliable?
The price and inventory of HDC2022DEPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HDC2022DEPR is usually 5 days.
3.What payment methods are accepted for HDC2022DEPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HDC2022DEPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HDC2022DEPR?
HDC2022DEPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HDC2022DEPR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for HDC2022DEPR?
For technical support, including HDC2022DEPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HDC2022DEPR requirements.
6.How does Aetrix verify that HDC2022DEPR is sourced from the original manufacturer or authorized distributors?
All HDC2022DEPR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that HDC2022DEPR meets industry standards.
7.What is the process for return or replacement of HDC2022DEPR?
All HDC2022DEPR units undergo pre-shipment inspection (PSI). If there is an issue with HDC2022DEPR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The HDC2022DEPR part is unused and in its original packaging.
Return procedure for HDC2022DEPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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