ToF sensor offers high ranging accuracy at up to 1.3 m

The VL53L4ED is a time-of-flight (ToF) ranging sensor for use in proximity-sensing applications that require high accuracy over a short distance up to 1.3 m in normal temperatures, and up to 1.15 m at high temperatures up to 105°C. 

Special settings also provide for accurate distance measurement at a range of up to 800 mm when operating in dim light of up to 5 klux in intensity.

The VL53L4ED embedded on-chip processing helps to reduce design complexity and bill-of-materials cost relieving the burden on the host, so a less powerful and less expensive microcontroller can be used.

Like all ToF sensors based on ST FlightSense™ technology, the VL53L4ED performs absolute distance measurement regardless of the target color and reflectance.

The VL53L4ED combines an infrared vertical-cavity surface-emitting laser (VCSEL) emitter and a single-photon avalanche diode (SPAD) array of photodetectors. Diffractive optical elements above the emitter enable the sensor to perform ranging in various ambient lighting conditions, and through a range of cover glass materials. 

The VL53L4ED is a direct derivative of the VL53L4CD, with which it is pin-compatible.