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Vishay Semiconductor Opto Division VCNL4035X01-GES-SB

Name: VCNL4035X01-GES-SB
Brand: Vishay Semiconductor Opto Division
SKU: VCNL4035X01-GES-SB
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VCNL4035X01-GES-SB

Manufacturer:: Vishay Semiconductor Opto Division

Category:: Sensor Evaluation Boards

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Datasheet:: VCNL4035X01-GES-SB.pdf

Description:: EVAL BOARD FOR VCNL4035X01

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Product details

Overview

VCNL4035X01-GES-SB from Vishay Semiconductors is a fully integrated proximity and ambient light sensor IC with I²C interface, 16-bit ALS, 12/16-bit PS, programmable interrupt thresholds, and integrated driver for up to three external IREDs. It delivers ±10% ALS accuracy, 0.004 lx resolution, 500 mm PS detection range, and operates from 2.5 V to 3.6 V in hygienic touchless interfaces and gesture-enabled consumer devices.

For engineers reviewing the VCNL4035X01-GES-SB datasheet, VCNL4035X01-GES-SB pinout, VCNL4035X01-GES-SB application, or VCNL4035X01-GES-SB equivalent, this page provides verified technical context, validated pin functions, confirmed Filtron™ spectral matching, temperature-compensated operation from –40 °C to +105 °C, and real-world interrupt behavior for low-power microcontroller integration.

Technical Context

The VCNL4035X01-GES-SB implements parallel ALS and PS signal paths with independent 16-bit ADCs, uses patented Filtron™ technology to match human eye spectral response (peak at 550 nm) and reject sunlight interference, and incorporates intelligent cross-talk cancellation with programmable PS persistence (1–4 cycles) and smart persistence for fast, false-trigger-resistant proximity detection.

Its I²C interface supports standard/fast mode (10–400 kHz), slave addresses 0x40/0x41/0x51/0x60, and command-based register access for ALS integration time (50–800 ms), PS duty ratio (1/40–1/320), gain, resolution, and IRED current (50–200 mA), enabling flexible trade-offs between response speed, power, and sensitivity.

Key Specifications

Parameter	Value and Actual Design Meaning
ALS Resolution	0.004 lx/step - enables reliable dark-lens operation and sub-lux ambient sensing in low-transmittance enclosures
PS Detection Range	0–500 mm - supports robust proximity sensing across diverse object colors and surface reflectivities
Operating Voltage	2.5 V to 3.6 V - compatible with single Li-ion or 3.3 V system rails without level-shifting
Temperature Range	–40 °C to +105 °C - AEC-Q101 qualified for automotive cabin and industrial environments
I²C Bus Voltage	1.8 V to 5.5 V - allows direct interfacing with 1.8 V, 3.3 V, or 5 V host controllers
Supply Current	300 μA typical (active, no IRED) - enables battery-powered operation with multi-day uptime
ALS Accuracy	±10% under white LED illumination - ensures consistent brightness control and display adaptation

Pinout & Package

VCNL4035X01-GES-SB is housed in a lead-free, surface-mount 8-pin QFN package measuring 4.0 mm × 2.36 mm × 0.75 mm (MSL 3, 168 h floor life).

Pin/Terminal	Circuit Role	Design Meaning
VDD	Power supply input	2.5–3.6 V main supply rail; decoupling capacitor required near pin
SCL	I²C clock input	Open-drain-compatible input; requires external pull-up to VPULL-UP (1.8–5.5 V)
GND	Ground reference	Common return path for analog/digital circuits and IRED cathodes
IRED3	IRED cathode driver output	Sinks up to 200 mA; supports third external infrared emitter for multi-axis gesture
IRED2	IRED cathode driver output	Sinks up to 200 mA; enables dual-IRED differential proximity or 2D gesture
IRED1	IRED cathode driver output	Sinks up to 200 mA; primary emitter channel with programmable current (50–200 mA)
INT	Interrupt output	Open-drain active-low signal asserting on ALS/PS threshold crossing or gesture event
SDA	I²C data I/O	Open-drain bidirectional bus line; shares pull-up with SCL; supports SMBus protocol

Key Features

Feature	Design Value
Filtron™ Spectral Matching	ALS peak sensitivity at 550 nm with human-eye-like response - eliminates software compensation for daylight rejection
Programmable IRED Drive	Three independent cathode outputs with 50–200 mA sink capability - enables multi-emitter gesture and adaptive power control
Smart Persistence Logic	Configurable PS persistence (1–4 cycles) plus smart persistence mode - reduces false triggers while maintaining <100 ms response
Parallel ALS/PS Operation	Simultaneous 16-bit ALS and 12/16-bit PS sampling - avoids time-multiplexing latency in real-time gesture systems
Temperature Compensation	Stable ALS/PS output across –40 °C to +105 °C - removes need for host-side calibration tables

Applications

Automatic Display Brightness Control	Touchless Faucet / Soap Dispenser
Use Scenario: Smartphone, tablet, or notebook dynamically adjusts screen luminance based on ambient illuminance. IC Role / Device Role / Timing Role: VCNL4035X01-GES-SB acts as the primary ambient light sensor feeding calibrated lux data via I²C to the display controller. Use Value: ±10% ALS accuracy and 0.004 lx resolution enable smooth, flicker-free dimming even under low-light conditions.	Use Scenario: Public restroom fixture activates water flow or soap dispensing upon hand presence detection. IC Role / Device Role / Timing Role: VCNL4035X01-GES-SB serves as the proximity trigger with programmable high/low thresholds and interrupt-driven wake-up. Use Value: 500 mm detection range and intelligent cross-talk cancellation ensure reliable activation through steam, splashes, and varying hand positions.
2D/3D Gesture Interface	Automotive Cabin Occupancy Sensing
Use Scenario: Smart TV or kiosk interprets swipe, hover, or pinch gestures using spatial proximity data. IC Role / Device Role / Timing Role: VCNL4035X01-GES-SB provides synchronized ALS and PS data from up to three IREDs for multi-axis motion inference. Use Value: Independent PS/ALS interrupt flags and gesture-ready registers (GESTURE_INT_EN, GESTURE_MODE) reduce host CPU polling overhead.	Use Scenario: In-vehicle system detects occupant presence, seat position, or hand proximity for HVAC or infotainment control. IC Role / Device Role / Timing Role: VCNL4035X01-GES-SB functions as an AEC-Q101-qualified proximity sensor with sunlight immunity and thermal stability. Use Value: Filtron™ technology and built-in sunlight cancellation eliminate false triggers under direct solar exposure up to 105 °C ambient.

Automatic Display Brightness Control

Touchless Faucet / Soap Dispenser

Use Scenario: Smartphone, tablet, or notebook dynamically adjusts screen luminance based on ambient illuminance.

IC Role / Device Role / Timing Role: VCNL4035X01-GES-SB acts as the primary ambient light sensor feeding calibrated lux data via I²C to the display controller.

Use Value: ±10% ALS accuracy and 0.004 lx resolution enable smooth, flicker-free dimming even under low-light conditions.

Use Scenario: Public restroom fixture activates water flow or soap dispensing upon hand presence detection.

IC Role / Device Role / Timing Role: VCNL4035X01-GES-SB serves as the proximity trigger with programmable high/low thresholds and interrupt-driven wake-up.

Use Value: 500 mm detection range and intelligent cross-talk cancellation ensure reliable activation through steam, splashes, and varying hand positions.

2D/3D Gesture Interface

Automotive Cabin Occupancy Sensing

Use Scenario: Smart TV or kiosk interprets swipe, hover, or pinch gestures using spatial proximity data.

IC Role / Device Role / Timing Role: VCNL4035X01-GES-SB provides synchronized ALS and PS data from up to three IREDs for multi-axis motion inference.

Use Value: Independent PS/ALS interrupt flags and gesture-ready registers (GESTURE_INT_EN, GESTURE_MODE) reduce host CPU polling overhead.

Use Scenario: In-vehicle system detects occupant presence, seat position, or hand proximity for HVAC or infotainment control.

IC Role / Device Role / Timing Role: VCNL4035X01-GES-SB functions as an AEC-Q101-qualified proximity sensor with sunlight immunity and thermal stability.

Use Value: Filtron™ technology and built-in sunlight cancellation eliminate false triggers under direct solar exposure up to 105 °C ambient.

Equivalent & Alternatives

The following parts are listed as comparable options for similar proximity and ambient light sensing applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
VCNL3040-GS08	Lacks third IRED driver; 12-bit PS only; no gesture mode registers; smaller 3.95 × 2.36 mm package	Lower-cost single-IRED proximity-only use cases; not suitable for 2D/3D gesture or multi-emitter differential sensing	Select VCNL3040-GS08 only when 3-IRED drive, gesture support, or 16-bit PS resolution are unnecessary.
TMD2635	Integrated single IRED; no external IRED support; 16-bit ALS but only 12-bit PS; different I²C address scheme (0x39)	Compact space-constrained designs where external emitter routing is impractical; lacks PS smart persistence and sunlight protection mode	Choose TMD2635 for simplified BOM and layout when external IRED flexibility and advanced PS features are not required.

Compared with VCNL3040-GS08 and TMD2635, the VCNL4035X01-GES-SB uniquely supports three independently controlled IREDs, dedicated gesture registers, smart persistence logic, and sunlight protection mode-making it the only option among the three qualified for robust multi-axis gesture and high-dynamic-range ambient light control in harsh environments.

Availability

VCNL4035X01-GES-SB is available at Aetrix Electronics and suitable for touchless human-machine interfaces, automotive cabin sensing, and industrial hygiene systems requiring stable component supply, long-term lifecycle support, and AEC-Q101 reliability validation.

Supply support for VCNL4035X01-GES-SB 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

Vishay Semiconductors is a global leader in discrete semiconductors and sensors, specializing in high-reliability optoelectronics, power management, and precision sensing solutions.

The VCNL4035X01-GES-SB belongs to Vishay's VCNL family of integrated optical sensors, designed specifically for low-power, high-accuracy proximity and ambient light measurement in consumer, automotive, and industrial touchless interfaces.

FAQ

What is the default I²C slave address for VCNL4035X01-GES-SB?

The VCNL4035X01-GES-SB variant ships with a fixed 7-bit I²C slave address of 0x60. This is confirmed in the "SLAVE ADDRESS OPTIONS" table of the official Vishay datasheet (Rev. 2.4). Other variants (e.g., VCNL40351X01-GS08) use 0x51, 0x40, or 0x41-but VCNL4035X01-GES-SB exclusively uses 0x60. No hardware strap or configuration is needed to set this address.

Does VCNL4035X01-GES-SB support gesture recognition out of the box?

Yes, VCNL4035X01-GES-SB natively supports 2D and 3D gesture functions via dedicated registers (GESTURE_INT_EN, GESTURE_MODE) and three independent IRED drivers. When configured, it generates interrupt flags for directional motion events and provides synchronized PS1/PS2/PS3 data streams. The VCNL4035X01-GES-SB does not require external processing-gesture logic can be implemented directly in host firmware using raw proximity triplets.

How does the Filtron™ technology in VCNL4035X01-GES-SB improve ambient light sensing?

Filtron™ technology in VCNL4035X01-GES-SB delivers spectral response closely aligned with the CIE photopic curve (peak at 550 nm), enabling accurate lux measurement without host-side correction. It also provides inherent background light rejection-including full-spectrum sunlight-by filtering non-visible IR and UV components at the silicon level, eliminating reliance on microcontroller resources for compensation algorithms.

Can VCNL4035X01-GES-SB drive all three IREDs simultaneously?

No-VCNL4035X01-GES-SB drives only one IRED at a time, selected via the IRED select bits (PS_CONF3 register). The three IRED outputs (IRED1–IRED3) are time-multiplexed under firmware control to enable differential sensing, multi-angle detection, or gesture segmentation. Simultaneous drive is electrically prohibited by internal logic to prevent excessive current draw and crosstalk.

What is the maximum IRED sink current supported by VCNL4035X01-GES-SB?

The VCNL4035X01-GES-SB supports a programmable IRED sink current up to 200 mA per channel (IRED1/IRED2/IRED3), adjustable in eight discrete steps (50–200 mA) via the LED_I bits in PS_MS register. This rating is specified under recommended operating conditions (T_amb ≤ +85 °C) and assumes proper PCB thermal design per Vishay's layout guidelines.

VCNL4035X01-GES-SB Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Semiconductor Opto Division

Series:: SensorXplorer™

Packaging:: Box

Product Status:: Active

Sensor Type:: Light, Biosensor

Sensing Range:: -

Interface:: I2C

Sensitivity:: -

Voltage - Supply:: 2.5V ~ 3.6V

Embedded:: -

Contents:: Board(s)

Utilized IC / Part:: VCNL4035X01

VCNL4035X01-GES-SB FAQ

1.How can I place an order for VCNL4035X01-GES-SB through Aetrix?

Please submit a Request for Quotation (RFQ) for VCNL4035X01-GES-SB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for VCNL4035X01-GES-SB reliable?

The price and inventory of VCNL4035X01-GES-SB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VCNL4035X01-GES-SB is usually 5 days.

3.What payment methods are accepted for VCNL4035X01-GES-SB?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VCNL4035X01-GES-SB transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VCNL4035X01-GES-SB?

VCNL4035X01-GES-SB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VCNL4035X01-GES-SB order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for VCNL4035X01-GES-SB?

For technical support, including VCNL4035X01-GES-SB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VCNL4035X01-GES-SB requirements.

6.How does Aetrix verify that VCNL4035X01-GES-SB is sourced from the original manufacturer or authorized distributors?

All VCNL4035X01-GES-SB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that VCNL4035X01-GES-SB meets industry standards.

7.What is the process for return or replacement of VCNL4035X01-GES-SB?

All VCNL4035X01-GES-SB units undergo pre-shipment inspection (PSI). If there is an issue with VCNL4035X01-GES-SB, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The VCNL4035X01-GES-SB part is unused and in its original packaging.

Return procedure for VCNL4035X01-GES-SB:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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