The RPR-0521RSH345 is an integrated ambient light and proximity sensor manufactured by Rohm Semiconductor. This sensor combines an ambient light sensor (ALS) and a proximity sensor (PS) in a single package. It is designed for applications requiring accurate light level detection and proximity sensing, such as smartphones, tablets, and other portable devices. The RPR-0521RSH345 offers features such as high sensitivity, low power consumption, and a compact size. It uses an I2C interface for easy communication with microcontrollers and other digital circuits.

Applications

• Smartphones
• Tablets
• Wearable devices
• Automatic brightness control
• Proximity detection

Features

• Integrated ALS and PS
• High sensitivity
• Low power consumption
• Compact package
• I2C interface
• Programmable interrupt function

Benefits

• Enables automatic adjustment of screen brightness based on ambient light.
• Detects proximity for touch screen deactivation.
• Low power consumption extends battery life in portable devices.
• Compact package saves board space.
• I2C interface simplifies communication with microcontrollers.

Technical Specifications

The RPR-0521RSH345 operates with a supply voltage of 1.7V to 3.6V. The ambient light sensor (ALS) measures the intensity of visible light, and the proximity sensor (PS) detects the presence of nearby objects using an infrared (IR) LED and photodiode. The I2C address is configurable. The sensor offers a programmable interrupt function to alert the microcontroller when a specific light or proximity level is detected. The typical power consumption is low, which extends battery life in portable devices. The sensor is typically housed in a small surface-mount package for ease of assembly. Specific details on the sensitivity range, proximity detection distance, and I2C address should be checked with the manufacturer's datasheet.