STMicroelectronics VL53L3CXV0DH/1

Overview

VL53L3CXV0DH/1 from STMicroelectronics is a miniature, reflowable time-of-flight (ToF) ranging sensor with integrated 940 nm VCSEL emitter, SPAD array, and on-board microcontroller running histogram-based direct ToF firmware. It delivers multitarget distance measurement up to 300 cm+ within 25° FoV, features dynamic fingerprint smudge compensation, cover glass crosstalk immunity beyond 80 cm, and operates from 2.6–3.5 V at –20 to +85°C. Used in laser-assisted autofocus for smartphones and obstacle detection in service robots.

For engineers reviewing the VL53L3CXV0DH/1 datasheet, VL53L3CXV0DH/1 pinout, VL53L3CXV0DH/1 application, or VL53L3CXV0DH/1 equivalent, this page provides verified technical context, I²C interface timing (up to 1 MHz), LGA12 package layout, real-world ranging performance under smudge/glass conditions, and validated alternatives for proximity and depth-sensing designs.

Technical Context

The VL53L3CXV0DH/1 implements ST's third-generation FlightSense™ direct ToF architecture using a single-photon avalanche diode (SPAD) array and patented histogram processing firmware. It performs temporal signal separation to distinguish object returns from cover-glass crosstalk and dynamically adjusts for smudge-induced attenuation beyond 80 cm.

Its embedded microcontroller executes full ranging sequences-including initialization, multi-object histogram acquisition, post-processing, and interrupt-driven result reporting-via I²C (address 0x52). Hardware handshake is managed through XSHUT (reset) and open-drain GPIO1 (interrupt), enabling synchronized 30 Hz continuous ranging with <33 ms per measurement cycle.

Key Specifications

Pinout & Package

LGA12 optical module with 12 solder pads on bottom side; dimensions 4.4 mm × 2.4 mm × 1.0 mm; requires no underfill and supports standard lead-free reflow profiles (J-STD-020).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar time-of-flight ranging applications.

Compared with VL53L1CBV0DH/1 and TMD2635, the VL53L3CXV0DH/1 uniquely delivers certified 300 cm ranging with real-time smudge adaptation and four-target resolution-making it the only option for robust, glass-integrated depth sensing in shared or high-contamination environments.

Availability

VL53L3CXV0DH/1 is available at Aetrix Electronics and suitable for service robotics, smart building occupancy control, sanitary fixture automation, and laser-assisted autofocus requiring stable component supply, full production traceability, and lifecycle continuity.

Supply support for VL53L3CXV0DH/1 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, sensors, power ICs, and automotive-grade components with ISO 9001 and IATF 16949 certification.

The VL53L3CX belongs to ST's FlightSense™ ToF sensor product line, engineered specifically for high-accuracy, cover-glass-tolerant distance measurement in consumer, industrial, and medical devices where optical contamination and ambient light variability are persistent challenges.

FAQ

What is the maximum measurable distance with cover glass installed?

The VL53L3CXV0DH/1 achieves up to 300 cm detection range with standard cover glass in place, thanks to patented histogram-based direct ToF algorithms that separate true object returns from cover-glass crosstalk beyond 80 cm. Performance is validated per DS13204 Rev 9 test conditions using 2-mm borosilicate glass and 940 nm VCSEL drive.

Does the device require factory calibration for each unit?

No-VL53L3CXV0DH/1 supports "generic shape" crosstalk calibration, allowing a single set of preloaded values to be used across production batches when cover glass geometry is consistent. Only offset and RefSpad calibrations are mandatory per unit; crosstalk calibration is optional unless custom glass thickness or curvature is used.

Can GPIO1 be used without external pull-up resistors?

No-GPIO1 is an open-drain interrupt output and requires a 10 kΩ pull-up resistor to IOVDD (typically 1.8 V or 3.3 V) to generate a valid logic-high level when inactive. Leaving GPIO1 unconnected or omitting the pull-up will prevent reliable interrupt detection and cause ranging synchronization failures.

Is the I²C address fixed or configurable?

The default I²C slave address is fixed at 0x52 (7-bit) for write operations and 0x53 for read operations. Address modification is not supported in hardware; multiple devices on the same bus require software arbitration or physical bus segmentation, as no alternate address pins or EEPROM-programmable addressing are provided.