Microchip Technology Tariff Inquiry

MCP4451-103E/ST

MCP4451-103E/ST Description

The MCP4451-103E/ST from Microchip Technology is a quad-channel, 10kΩ digital potentiometer with 257 taps, offering precise resistance adjustment via an I2C interface. Designed for surface-mount applications, it operates within a 1.8V to 5.5V supply range, making it suitable for low-voltage and portable electronics. This volatile-memory device features a ±20% tolerance and a 150ppm/°C temperature coefficient, ensuring stable performance across varying environmental conditions. Packaged in a 20-TSSOP tube, it is RoHS3 compliant and REACH unaffected, meeting stringent environmental standards.

MCP4451-103E/ST Features

• Quad-channel configuration: Four independent potentiometers in a single package, reducing board space and complexity.
• I2C interface: Enables easy digital control with selectable addressing for multi-device systems.
• Low wiper resistance (75Ω typ): Minimizes signal distortion in analog circuits.
• Mute function: Allows quick muting of audio signals, ideal for volume control applications.
• Wide voltage range (1.8V–5.5V): Compatible with 3.3V and 5V systems, as well as battery-powered devices.
• 257-tap resolution: Provides fine-grained adjustment for precision applications.
• Industrial-grade reliability: MSL 1 (Unlimited) moisture sensitivity ensures robustness in manufacturing.

MCP4451-103E/ST Applications

• Audio equipment: Volume and tone control in amplifiers, mixers, and portable audio devices.
• Industrial automation: Calibration, sensor trimming, and process control systems.
• Test & measurement: Programmable resistance for automated test setups.
• Consumer electronics: Brightness/contrast adjustment in displays or user-configurable settings.
• Power management: Feedback loop tuning in DC-DC converters or voltage references.

Conclusion of MCP4451-103E/ST

The MCP4451-103E/ST stands out for its high resolution, low power operation, and compact quad-channel design, making it a versatile choice for digitally controlled analog systems. Its I2C interface, mute function, and wide voltage range provide flexibility in diverse applications, from audio to industrial control. With Microchip’s reliability and compliance with environmental standards, this digital potentiometer is an excellent solution for engineers seeking precision and integration in modern electronic designs.