MCP41HV51-103E/ST

Product Overview

Category

The MCP41HV51-103E/ST belongs to the category of digital potentiometers.

Use

It is primarily used as a variable resistor in electronic circuits, providing a digitally controlled resistance value.

Characteristics

• High voltage capability: The MCP41HV51-103E/ST can handle high voltages, making it suitable for applications that require voltage levels beyond the capabilities of standard potentiometers.
• Digital control: It offers precise and accurate resistance adjustment through digital control signals.
• Non-volatile memory: The device retains its resistance setting even when power is removed, allowing for easy restoration of previous settings.
• Low power consumption: The MCP41HV51-103E/ST operates with low power consumption, making it energy-efficient.

Package

The MCP41HV51-103E/ST is available in a small surface-mount package, which ensures space-saving integration into electronic circuits.

Essence

The essence of the MCP41HV51-103E/ST lies in its ability to provide a digitally controlled variable resistance, enabling precise adjustment of resistance values in electronic circuits.

Packaging/Quantity

This product is typically packaged in reels or tubes, containing a specific quantity of MCP41HV51-103E/ST devices. The exact quantity depends on the manufacturer's specifications.

Specifications

• Resistance range: 0 to 10 kΩ
• Resolution: 8 bits (256 steps)
• Supply voltage: 2.7V to 5.5V
• Maximum operating voltage: 36V
• Temperature range: -40°C to +125°C
• Interface: SPI (Serial Peripheral Interface)

Detailed Pin Configuration

The MCP41HV51-103E/ST has a total of 14 pins, each serving a specific function:

1. VDD: Supply voltage input
2. VSS: Ground reference
3. CS: Chip select input for SPI communication
4. SCK: Serial clock input for SPI communication
5. SDI: Serial data input for SPI communication
6. SDO: Serial data output for SPI communication
7. SHDN: Shutdown control input
8. A1: Address bit 1
9. A0: Address bit 0
10. H: Terminal H of the potentiometer
11. W: Wiper terminal of the potentiometer
12. L: Terminal L of the potentiometer
13. NC: No connection
14. VREF: Reference voltage input

Functional Features

• Digital resistance adjustment: The MCP41HV51-103E/ST allows precise and fine-grained resistance adjustment through digital control signals.
• Non-volatile memory: The device retains its resistance setting even when power is removed, ensuring that the desired resistance value is maintained upon power restoration.
• High voltage capability: It can handle high voltages, making it suitable for applications requiring voltage levels beyond the capabilities of standard potentiometers.
• Low power consumption: The MCP41HV51-103E/ST operates with low power consumption, minimizing energy usage in electronic circuits.

Advantages and Disadvantages

Advantages

• Precise resistance adjustment
• Retains resistance setting during power loss
• Suitable for high voltage applications
• Energy-efficient operation

Disadvantages

• Limited resolution compared to higher-bit digital potentiometers
• Requires SPI interface for control

Working Principles

The MCP41HV51-103E/ST utilizes a combination of digital control and analog circuitry to achieve variable resistance. The digital control signals received through the SPI interface determine the position of the wiper terminal within the potentiometer, thereby adjusting the resistance value. The non-volatile memory ensures that the resistance setting is retained even when power is removed.

Detailed Application Field Plans

The MCP41HV51-103E/ST finds applications in various fields, including:

1. Audio equipment: It can be used for volume control and tone adjustment in audio amplifiers and mixers.
2. Industrial automation: The device enables precise resistance adjustment in control systems and instrumentation.
3. Automotive electronics: It can be utilized for sensor calibration and control in automotive applications.
4. Power supply circuits: The MCP41HV51-103E/ST allows for fine-tuning of voltage levels and current limiting in power supply designs.
5. Test and measurement equipment: It provides accurate resistance adjustment in testing and calibration setups.

Detailed and Complete Alternative Models

1. MCP4131: 8-bit digital potentiometer with a lower voltage range (0 to 5V) and SPI interface.
2. MCP4251: 8-bit digital potentiometer with dual channels for independent resistance adjustment.
3. MCP4161: 8-bit digital potentiometer with an extended temperature range (-40°C to +150°C)