Relative humidity and temperature sensor HDC2010

SMDsurface-mountI2C

Description The HDC2010 is an integrated relative humidity and temperature sensor in an ultra-compact WLCSP package that delivers high-accuracy measurements with very low power consumption. The sensing element is placed on the bottom of the device to improve robustness against dust and environmental contaminants. The capacitive sensor includes integrated digital features and an on-chip heater to dissipate condensation. Programmable interrupt thresholds and sampling intervals enable system wake-ups without continuous MCU monitoring, making the HDC2010 well suited for battery-operated designs.

Key functional summary

• Integrated relative humidity and temperature sensor in WLCSP
• Factory calibrated: typical ±2% RH humidity accuracy and ±0.2°C temperature accuracy
• Bottom-placed sensing element for improved contamination robustness
• Integrated heater to remove condensation and moisture
• Programmable interrupt thresholds and sampling intervals for low-power wake-ups
• I2C digital interface

Features (detailed)

• Relative humidity range: 0% to 100%
• Humidity accuracy: ±2% RH (typical, factory calibrated)
• Temperature accuracy: ±0.2°C (typical)
• Sleep current: 50 nA
• Average supply current (1 measurement per second):
  • RH only (11 bit): 300 nA
  • RH (11 bit) + temperature (11 bit): 550 nA
• Programmable sampling rates: 5 Hz, 2 Hz, 1 Hz, 0.2 Hz, 0.1 Hz, 1/60 Hz, 1/120 Hz, or trigger on demand
• Supply voltage range: 1.62 V to 3.6 V (supports 1.8 V operation)
• Operating temperature: –40°C to 85°C (functional to –40°C to 125°C)
• I2C interface for digital communication

Applications

• Environmental monitoring and HVAC control
• IoT devices: smart thermostats, home assistants, wearables
• Cold-chain monitoring and transport/storage of perishable goods (food, pharmaceuticals)
• Battery-powered and low-power sensor nodes

Package / mechanical DSBGA (YPA) | 6 pins | 2.1316 mm² (1.46 x 1.46 mm)

Additional notes The device integrates programmable digital features for interrupt thresholds and supports heating to improve reliability in condensation-prone environments. The bottom-placed sensing element and compact package target ultra-small, low-power designs and increase robustness against contaminants.

Technical specifications

• Relative humidity accuracy (typ): ±2 %RH
• Temperature accuracy (typ): ±0.2 °C
• Relative humidity range: 0 % to 100 %RH
• Supply voltage (min–max): 1.62 V – 3.6 V (supports 1.8 V)
• Average supply current (typ): 0.105 µA (depends on measurement configuration)
• Sleep current: 50 nA
• Average current (example 1 meas/s): RH only (11 bit) = 300 nA; RH + Temp (11 bit) = 550 nA
• Operating temperature range: −40 °C to 85 °C (functional to −40 °C to 125 °C)
• Interface: I2C
• Package: WLCSP (sensor on bottom) and DSBGA option (6 pins)