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New Product Introduction

NPI Body

STMicroelectronics STHS34PF80

Low-power, high-sensitivity infrared (IR) sensor for presence and motion detection

The STHS34PF80 is an uncooled, factory-calibrated, infrared motion and presence detection sensor with operating wavelength between 5 µm and 20 µm.

The STHS34PF80 sensor has been designed to measure the amount of IR radiation emitted from an object within its field of view. The information is digitally processed by the ASIC, which can be programmed to monitor motion, presence, or an overtemperature condition.

Thanks to its exceptional sensitivity, the STHS34PF80 can detect the presence of a human being at a distance up to 4 meters without the need of an optical lens.

The STHS34PF80 is housed in a 3.2 x 4.2 x 1.455 mm 10-lead LGA package.

Key features

Reach up to 4meters without lens for objects measuring 70 x 25cm²
Integrated silicon IR filter, SMD friendly
Capable of detecting stationary objects
Capable of distinguishing between stationary and moving objects
80° field of view, factory calibrated, low power, temperature range from -40°C to +85°C
Embedded smart algorithm for presence / motion detection
Supply voltage range from 1.7V to 3.6V, supply current is 10µA
2-wire I²C / 3-wire SPI serial interface, programmable ODRs from 0.25Hz to 30Hz
One-shot mode IR sensitivity is 2000LSB/°C, RMS noise is 25LSBrms
Operating wavelength is 5µm to 20µm, local temperature sensor accuracy is ±0.3°C

Applications

Presence and proximity sensing
Alarm / security systems
Home automation
Smart lighting
IoT
Smart lockers
Smart wall pads

Available tools

STEVAL-MKI231KA:

Evaluation kit composed by STHS34PF80 industrial board and standard DIL24 adapter

The STEVAL-MKI231KA evaluation kit is made up of an ad hoc PCB, mounting the STHS34PF80 low-power. The STHS34PF80 is a high-sensitivity infrared sensor for presence and motion detection, which is connected through flat cable to a generic adapter board (STEVAL-MKIGIBV5) to make it compatible with the STEVAL-MKI109V3.

DATASHEET

STEVAL-MKI109V3:

Professional MEMS tool: ST MEMS adapters motherboard based on the STM32F401VE and compatible with all ST MEMS adapters

ST's ready-to-use MEMS motherboard (STEVAL-MKI109V3) development platform lets engineers monitor the behavior of ST MEMS sensors, which can help accelerate time to market and maximize the performance of new product designs. This board is compatible with ST MEMS adapter boards and supports I2C and SPI data modes for very high output data rates.

DATASHEET