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SI1141-A11-YM0R
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SI1141-A11-YM0R

Product Overview

  • Category: Optical Sensor
  • Use: Proximity and Ambient Light Sensing
  • Characteristics: High sensitivity, integrated IR LED, small form factor
  • Package: 10-pin UQFN
  • Essence: Accurate proximity and ambient light sensing
  • Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

  • Proximity Sensing Range: Up to 100mm
  • Ambient Light Sensing Range: 0.01 lux to 64k lux
  • Operating Voltage: 1.7V to 3.6V
  • I2C Interface: Up to 3.4 Mbps
  • Operating Temperature: -40°C to +85°C

Detailed Pin Configuration

  1. VDD
  2. SDA
  3. SCL
  4. INT
  5. GND
  6. LED
  7. LED
  8. GND
  9. NC
  10. NC

Functional Features

  • Integrated IR LED for proximity sensing
  • High sensitivity for accurate ambient light sensing
  • Low power consumption for battery-operated devices
  • I2C interface for easy integration with microcontrollers

Advantages and Disadvantages

Advantages

  • Small form factor for space-constrained designs
  • Wide operating voltage range for flexibility in different applications
  • High sensitivity for reliable proximity and ambient light sensing

Disadvantages

  • Limited proximity sensing range compared to some alternative models
  • Requires careful consideration of ambient light interference in certain applications

Working Principles

The SI1141-A11-YM0R utilizes an integrated IR LED and photodiodes to detect proximity and ambient light. When an object approaches the sensor, the reflected IR light is detected, enabling accurate proximity sensing. For ambient light sensing, the sensor measures the intensity of visible and IR light, providing precise ambient light measurements.

Detailed Application Field Plans

The SI1141-A11-YM0R is suitable for various applications, including: - Mobile devices for automatic display brightness adjustment - Wearable devices for gesture recognition and power-saving features - Industrial equipment for proximity detection and ambient light monitoring - Home automation systems for presence detection and adaptive lighting control

Detailed and Complete Alternative Models

  1. SI1145-A10-GM: Offers UV index sensing in addition to proximity and ambient light sensing
  2. APDS-9930: Provides gesture detection along with proximity and ambient light sensing
  3. TMD27723: Integrates proximity, ambient light, and color sensing capabilities

In conclusion, the SI1141-A11-YM0R optical sensor offers high sensitivity and integrated IR LED for accurate proximity and ambient light sensing in a small form factor package. While it has limitations in proximity sensing range, its wide operating voltage range and low power consumption make it suitable for various applications, especially in mobile, wearable, industrial, and home automation settings.

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技術ソリューションにおける SI1141-A11-YM0R の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is the SI1141-A11-YM0R?

    • The SI1141-A11-YM0R is a low-power, reflectance-based infrared proximity, ambient light, and UV index sensor with I2C digital interface.

  2. What are the key features of the SI1141-A11-YM0R?

    • Key features include proximity sensing, ambient light sensing, and UV index sensing in a single package, low power consumption, and an I2C digital interface for easy integration.

  3. How does the SI1141-A11-YM0R work in proximity sensing?

    • The SI1141-A11-YM0R uses an infrared LED and photodiode to measure the reflectance of objects in front of the sensor, allowing it to detect the presence of nearby objects.

  4. What is the range of ambient light sensing provided by the SI1141-A11-YM0R?

    • The SI1141-A11-YM0R can sense ambient light levels from very low to bright sunlight, making it suitable for a wide range of lighting conditions.

  5. Can the SI1141-A11-YM0R measure UV index?

    • Yes, the SI1141-A11-YM0R is capable of measuring the UV index, providing valuable information for applications related to sun exposure and UV radiation monitoring.

  6. What are the typical applications of the SI1141-A11-YM0R in technical solutions?

    • Typical applications include touchless switches, display activation, gesture recognition, and UV index monitoring in wearable devices, consumer electronics, and industrial equipment.

  7. Does the SI1141-A11-YM0R require any external components for operation?

    • The SI1141-A11-YM0R integrates the necessary components for its functions, reducing the need for external components and simplifying the design process.

  8. What is the power consumption of the SI1141-A11-YM0R?

    • The SI1141-A11-YM0R operates at low power, making it suitable for battery-powered devices and energy-efficient applications.

  9. Is the SI1141-A11-YM0R compatible with microcontrollers and development platforms?

    • Yes, the SI1141-A11-YM0R communicates over the I2C digital interface, making it compatible with a wide range of microcontrollers and development platforms.

  10. Are there any special considerations for integrating the SI1141-A11-YM0R into a technical solution?

    • Designers should consider factors such as optical placement, interference from ambient light sources, and calibration for accurate proximity and ambient light sensing.