Hi gh Performance Relative

Humidi ty and Temperature Sensor

HS300x

Datasheet

R36DS0010EU0701 August 9, 2021

Description

The HS300x (HS3001, HS3002, HS3003, and HS3004) series is a

highly accurate, fully calibrated relative humidity and temperature

sensor. The MEMS sensor features a proprietary sensor-level

protection, ensuring high reliability and long-te rm s tability.

Integrated calibration and temperature-compensation logic pro-

vides fully corrected RH and temperature values via a standard I2C

output. No user calibration of the output data is required.

The high accuracy, fast measurement response time, and long-

term stability combined with the small package size makes the

HS300x series ideal for a wide number of applications ranging from

portable devices to products designed for harsh environments.

The HS300x series digital sensor accurately measures relative

humidity and temperature levels. The measured data i s internally

corrected and compensated for accurate operation over a wide

range of temperature and humidity levels – user calibrati on is not

required.

Typical Applications

 Climate control systems

 Home appliances

 Weather stations

 Industrial automation

 Medical equipment

 Automotive cabin climate control

Features

 Humidity range: 0% to 100%RH

 Humidity accuracy: ±1.5%RH, typical (HS3001, 10 to 90%RH,

25°C)

 14-bit resolution: 0.01%RH, typical

 Independent programmable resolution settings: 8, 10, 12,

14 bits

 Fast RH response time: 1 second time con stant, typical (with

1 m/sec air flow), 4 seconds time constant, typical (i n stil l air)

 Temperature sensor accuracy: ±0.2°C, typical (HS3001,

HS3002, -10 to +80°C)

 Low current consumption: 1.0µA average (8-bit resolution,

1.8V supply), 24.4µA average (14-bit resolution, 3.3V

supply), one RH and temperature measurement per second

 Excellent stability against aging

 Highly robust protection from harsh environmenta l co nditions

and mechanical shock

 Very low power consumption

Physical Characteristics

 Supply voltage: 2.3V to 5.5V

 Extended supply voltage: 1.8V (-20°C to +125°C)

 Operating temperature: -40°C to +125°C

 3.0 × 2.41 × 0.8 mm DFN-style 6-LGA package

Product Image

HS300x

Datasheet

R36DS0010EU0701 August 9, 2021

Contents

1. Pin Assignments ...........................................................................................................................................................................................4

2. Pin Descriptions ............................................................................................................................................................................................4

3. Absolute Maximum Ratings ..........................................................................................................................................................................5

4. Recommended Operating Conditions...........................................................................................................................................................5

5. Humidity and Temperature Sensor Performance .........................................................................................................................................6

5.1 Humidity Sensor Specification .............................................................................................................................................................6

5.2 Temperature Sensor Specification ......................................................................................................................................................7

5.3 Sleep Current ......................................................................................................................................................................................7

5.4 Humidity Sensor Accuracy Graphs ......................................................................................................................................................8

5.5 Temperature Sensor Accuracy Graphs ...............................................................................................................................................9

6. Sensor Interface .........................................................................................................................................................................................10

6.1 I2C Features and Timing ...................................................................................................................................................................10

6.2 Sensor Slave Address .......................................................................................................................................................................10

6.3 I2C Communication ...........................................................................................................................................................................11

6.4 Measurement Mode ...........................................................................................................................................................................11

6.5 Measurement Requests (MR) ...........................................................................................................................................................11

6.6 Data Fetch (DF) .................................................................................................................................................................................12

6.7 Status Bits .........................................................................................................................................................................................13

6.8 Accessing the Non-volatile Memory ..................................................................................................................................................13

6.9 Setting the Measurement Resolution.................................................................................................................................................14

6.10 Reading the HS300x ID Number .......................................................................................................................................................14

7. Calculating Humidity and Temperature Output...........................................................................................................................................15

8. Application Circuit .......................................................................................................................................................................................15

9. Package Outline Drawings .........................................................................................................................................................................16

10. Soldering Information .................................................................................................................................................................................16

11. PCB Layout Guide ......................................................................................................................................................................................17

12. Storage and Handling .................................................................................................................................................................................17

13. Quality and Reliability .................................................................................................................................................................................17

14. Ordering Information ...................................................................................................................................................................................18

15. Revision History ..........................................................................................................................................................................................18

Lis t of Figures

Figure 1. Pin Assignments for 3mm × 2.41mm 6-LGA Package (Top View) .....................................................................................................4

Figure 2. Sleep Current Variation over Temperature, V

at 3.3V......................................................................................................................7

Figure 3. HS3001 RH Accuracy To lerance at 25°C ...........................................................................................................................................8

Figure 4. HS3001 RH Accuracy over Temperature ............................................................................................................................................8

Figure 5. HS3002 RH Accuracy To lerance at 25°C ...........................................................................................................................................8