ROHM Semiconductor

BU21009MUV-E2

BU21009MUV-E2 Description

The BU21009MUV-E2 is a capacitive sensor switch IC designed by Rohm Semiconductor, offering a robust solution for applications requiring high-precision touch sensing. This Interface IC Chip is housed in a VQFN032V5050 package, making it suitable for surface mount technology (SMT) and ideal for compact, space-constrained designs. The device operates within a supply voltage range of 2.5V to 3.3V and draws a minimal supply current of 300µA, ensuring energy efficiency and low power consumption.

BU21009MUV-E2 Features

• High-Resolution Sensing: Equipped with a 10-bit resolution, the BU21009MUV-E2 provides precise and reliable touch detection, making it ideal for applications where accuracy is paramount.
• Multiple Inputs and LED Drivers: This IC supports up to 16 input channels and up to 8 LED driver channels, offering versatile control and monitoring capabilities. This feature allows for the integration of multiple sensors and indicators in a single device, reducing the need for additional components.
• I2C Interface: The BU21009MUV-E2 features an I2C interface, facilitating easy communication with microcontrollers and other system components. This interface simplifies integration into existing systems and enables efficient data transfer.
• Low Power Consumption: With a supply current of only 300µA, the device is optimized for low power applications, making it suitable for battery-operated devices and portable electronics.
• Moisture Sensitivity Level (MSL) 1: The BU21009MUV-E2 has an MSL rating of 1, indicating it is unaffected by moisture and can be used in a wide range of environmental conditions without the need for special handling.
• Compliance and Standards: The device is REACH unaffected and RoHS3 compliant, ensuring it meets the latest environmental and safety standards, making it suitable for global markets.

BU21009MUV-E2 Applications

The BU21009MUV-E2 is well-suited for a variety of applications, including:

• Consumer Electronics: Ideal for touch-sensitive controls in smartphones, tablets, and other portable devices, providing a sleek and responsive user interface.
• Home Appliances: Enhances user experience in appliances such as washing machines, refrigerators, and ovens by offering intuitive touch controls.
• Automotive: Used in vehicle infotainment systems and control panels, providing reliable and precise touch sensing in demanding automotive environments.
• Industrial Controls: Suitable for touch interfaces in industrial equipment, offering robust and accurate sensing capabilities.

Conclusion of BU21009MUV-E2

The BU21009MUV-E2 from Rohm Semiconductor stands out as a versatile and efficient capacitive sensor switch IC. Its high-resolution sensing, multiple input and LED driver channels, and low power consumption make it an ideal choice for a wide range of applications. The I2C interface and compliance with environmental standards further enhance its appeal. Despite being marked as obsolete, the BU21009MUV-E2 remains a reliable option for projects requiring high-performance touch sensing solutions.