Microchip Technology

MCP4451-502E/ST  

Digital Potentiometers

MCP4451-502E/ST Description

The MCP4451-502E/ST is a high-performance digital potentiometer designed by Microchip Technology, offering a versatile and reliable solution for applications requiring precise resistance control. This 20-TSSOP packaged IC features a 5kΩ resistance with a tolerance of ±20%, providing a wide range of resistance values through its 257 taps. The device operates within a supply voltage range of 1.8V to 5.5V, making it suitable for various power supply environments.

The MCP4451-502E/ST is equipped with a linear taper, ensuring consistent resistance changes across the entire range of taps. It supports an I2C interface, facilitating easy communication and control in embedded systems. The device also includes features such as mute and selectable address, enhancing its flexibility and adaptability in complex circuits.

MCP4451-502E/ST Features

• Resistance and Tolerance: The MCP4451-502E/ST offers a nominal resistance of 5kΩ with a tolerance of ±20%, providing a wide range of resistance values suitable for various applications.
• Number of Taps: With 257 taps, this digital potentiometer provides high-resolution resistance control, allowing for precise adjustments.
• Temperature Coefficient: The device has a typical temperature coefficient of 150ppm/°C, ensuring stable performance across different temperature ranges.
• Interface: The I2C interface simplifies integration into systems requiring digital control of resistance.
• Features: The MCP4451-502E/ST includes mute and selectable address features, enhancing its functionality and adaptability in complex circuits.
• Memory Type: The device features volatile memory, which allows for dynamic adjustments and reconfigurations.
• Supply Voltage: Operating within a voltage range of 1.8V to 5.5V, the MCP4451-502E/ST is compatible with a variety of power supply configurations.
• Compliance: The device is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.
• Moisture Sensitivity Level: With an MSL of 1 (Unlimited), the MCP4451-502E/ST is suitable for surface mount applications without the need for special handling.

MCP4451-502E/ST Applications

The MCP4451-502E/ST is ideal for applications requiring precise resistance control, such as:

• Audio Systems: The mute feature and selectable address make it suitable for volume control and signal attenuation in audio equipment.
• Medical Devices: The high-resolution resistance control and stability across temperature ranges make it ideal for medical devices requiring precise calibration.
• Industrial Control Systems: The device's robustness and wide operating voltage range make it suitable for industrial applications where precise resistance control is necessary.
• Consumer Electronics: The MCP4451-502E/ST can be used in consumer electronics for adjustable gain control, signal conditioning, and other applications requiring dynamic resistance adjustments.

Conclusion of MCP4451-502E/ST

The MCP4451-502E/ST digital potentiometer from Microchip Technology offers a versatile and reliable solution for applications requiring precise resistance control. With its 5kΩ resistance, 257 taps, and I2C interface, the device provides high-resolution and easy-to-control resistance adjustments. The inclusion of features such as mute and selectable address enhances its functionality, making it suitable for a wide range of applications, from audio systems to medical devices. The MCP4451-502E/ST's compliance with environmental and safety standards, along with its robust performance, make it a standout choice in the digital potentiometer market.

MCP4451-502E/ST Documents

Download datasheets and manufacturer documentation for MCP4451-502E/ST

Datasheets :

Digital Pot Design Guide       MCP443x/5x      

PCN Packaging :

Packing Changes 10/Oct/2016       Label and Packing Changes 23/Sep/2015      

PCN Design/Specification :

Lead Frame Update 16/Apr/2015      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH