VCNL36829UM Proximity Sensor With VCSEL in Small Package
The Vishay Semiconductors VCNL36829UM is a new fully integrated short distance proximity sensor introduced by the Optoelectronics group of Vishay Intertechnology, Inc. Designed for consumer applications, this compact sensor aims to enhance efficiency, design flexibility, and overall performance in modern electronic devices.
This advanced proximity sensor integrates a vertical-cavity surface-emitting laser (VCSEL), a photodiode, an application-specific integrated circuit (ASIC), a 16-bit analog-to-digital converter (ADC), and a smart dual I2C slave address within a miniature 1.6 mm x 1.0 mm x 0.35 mm transparent mold package. Its innovative isolation wall design is a key differentiator, contributing to its robust performance.
The VCNL36829UM stands out with a 44% smaller volume compared to previous-generation solutions, coupled with a higher 14-bit proximity resolution and strong sunlight immunity up to 200 klx. With a detection range of 50 mm and an ultra-low idle current of 5 µA, it is particularly well-suited for space-constrained, battery-powered applications requiring superior proximity detection and reduced power consumption.
Specifications
| Product | Function | Package Size (mm) | Typical Supply Voltage (V) | Operating Voltage Range (V) | Proximity Resolution (bits) | Detection Range (mm) | Idle Current (µA) |
|---|---|---|---|---|---|---|---|
| VCNL36829UM | PS + VCSEL | 1.6 x 1.0 x 0.35 | 1.65 to 2.0 | 1.08 to 3.6 | 14 | 50 | 5 |
Key Features
- Fully integrated short distance proximity sensor with VCSEL.
- Compact 1.6 mm x 1.0 mm x 0.35 mm transparent mold package.
- Includes photodiode, ASIC, 16-bit ADC, and smart dual I2C slave address.
- 44% smaller volume compared to previous-generation solutions.
- High proximity resolution of 14 bits.
- Strong sunlight immunity up to 200 klx.
- Detection range of 50 mm.
- Low idle current of 5 µA.
- Typical rated supply voltage of 1.8 V.
- Smart dual I2C slave address enables two sensors without a multiplexer.
- Programmable interrupt function reduces MCU communication and system power.
- Isolation wall design provides excellent crosstalk immunity.
- Intelligent cancellation further reduces crosstalk.
- Smart persistence scheme ensures accurate sensing and faster response time.
- VCSEL wavelength peaks at 940 nm with no visible "red-tail."
- RoHS-compliant, halogen-free, and Vishay Green.
Applications
- Detecting user wear status in true wireless stereo (TWS) earphones.
- Presence detection in virtual reality / augmented reality (VR / AR) headsets.
- Integration into smart glasses for user interaction or wear detection.
- Touchless dispensing systems.
- Lid-off detection in various consumer appliances.
Avalibility
The product VCNL36829UM is currently available from Vishay and can be sourced through authorised distributors, subject to stock levels and lead time. For exact quantities and delivery dates, availability should be confirmed with Vishay or an authorised distributor.
