Microchip Technology

MCP4451-503E/ST  

Digital Potentiometers

MCP4451-503E/ST Description

The MCP4451-503E/ST is a digital potentiometer from Microchip Technology, designed for precision control and adjustment in various electronic applications. This device features a 50kOhm resistance with 257 taps, providing a wide range of resistance values. It operates over a supply voltage range of 1.8V to 5.5V, making it suitable for low-power applications. The MCP4451-503E/ST is RoHS3 compliant and REACH unaffected, ensuring environmental compliance.

MCP4451-503E/ST Features

• Configuration: Potentiometer
• Temperature Coefficient (Typ): 150ppm/°C
• Number of Taps: 257
• Memory Type: Volatile
• Voltage - Supply: 1.8V ~ 5.5V
• Resistance (Ohms): 50k
• Features: Mute, Selectable Address
• Tolerance: ±20%
• Taper: Linear
• Interface: I2C
• Mounting Type: Surface Mount
• Package: Tube
• Number of Circuits: 4
• Resistance - Wiper (Ohms) (Typ): 75

Unique features and advantages of the MCP4451-503E/ST include its linear taper, which provides a smooth and consistent resistance adjustment. The device also offers mute and selectable address features, allowing for easy integration into complex systems with multiple potentiometers. The MCP4451-503E/ST's I2C interface enables easy communication with microcontrollers and other digital systems.

MCP4451-503E/ST Applications

The MCP4451-503E/ST is ideal for a variety of applications where precise resistance adjustment is required. Some specific use cases include:

1. Audio Volume Control: The MCP4451-503E/ST can be used to adjust the volume in audio systems, providing a smooth and consistent user experience.
2. Sensor Calibration: In applications requiring precise sensor calibration, the MCP4451-503E/ST can be used to fine-tune sensor readings.
3. LED Dimming: The device can be used to control the brightness of LEDs, allowing for precise dimming and brightness control.
4. Battery Management Systems: In battery management systems, the MCP4451-503E/ST can be used to adjust charging and discharging rates, ensuring optimal battery performance.

Conclusion of MCP4451-503E/ST

The MCP4451-503E/ST from Microchip Technology is a versatile and feature-rich digital potentiometer, offering precise resistance adjustment and a wide range of applications. Its linear taper, I2C interface, and unique features such as mute and selectable address make it an ideal choice for applications requiring precise control and adjustment. With its RoHS3 compliance and REACH unaffected status, the MCP4451-503E/ST is also an environmentally responsible choice for electronic designers.

MCP4451-503E/ST Documents

Download datasheets and manufacturer documentation for MCP4451-503E/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