MCP4231T-502E/ML

Product Overview

Category

The MCP4231T-502E/ML belongs to the category of digital potentiometers.

Use

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

Characteristics

• Digital control: The MCP4231T-502E/ML can be controlled digitally using a microcontroller or other digital devices.
• Programmable resistance: It allows for setting the resistance value through digital inputs.
• Non-volatile memory: The device retains the programmed resistance value even when power is removed.
• Low power consumption: It operates with low power requirements, making it suitable for battery-powered applications.

Package

The MCP4231T-502E/ML is available in a small outline package (MLP) form factor.

Essence

The essence of the MCP4231T-502E/ML lies in its ability to provide a digitally controlled variable resistance, offering flexibility and precision in electronic circuit design.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Resolution: 8 bits
• Number of channels: 2
• Resistance range: 0 to 5 kilohms
• Interface: SPI (Serial Peripheral Interface)
• Operating voltage: 2.7V to 5.5V
• Temperature range: -40°C to +125°C

Detailed Pin Configuration

The MCP4231T-502E/ML has a total of 14 pins, which are assigned as follows:

1. VDD - Power supply voltage
2. CS - Chip select input
3. SCK - Serial clock input
4. SDI - Serial data input
5. SDO - Serial data output
6. SHDN - Shutdown input
7. VSS - Ground
8. A1 - Channel 1 terminal A
9. W1 - Channel 1 wiper terminal
10. B1 - Channel 1 terminal B
11. A2 - Channel 2 terminal A
12. W2 - Channel 2 wiper terminal
13. B2 - Channel 2 terminal B
14. VREF - Reference voltage input

Functional Features

• Digital control: The MCP4231T-502E/ML allows for precise digital control of resistance values.
• Non-volatile memory: The programmed resistance values are stored in non-volatile memory, ensuring retention even during power loss.
• Low power consumption: It operates with low power requirements, making it suitable for energy-efficient applications.
• SPI interface: The device communicates with a microcontroller or other digital devices using the Serial Peripheral Interface (SPI) protocol.

Advantages and Disadvantages

Advantages

• Precise resistance control
• Non-volatile memory for retaining settings
• Low power consumption
• Compact package size

Disadvantages

• Limited resolution compared to higher-bit digital potentiometers
• Restricted resistance range

Working Principles

The MCP4231T-502E/ML utilizes a combination of digital-to-analog conversion and resistive ladder network techniques to achieve variable resistance control. The digital inputs are converted into analog signals, which are then used to adjust the resistance value between the terminals.

Detailed Application Field Plans

The MCP4231T-502E/ML finds applications in various fields, including:

1. Audio equipment: It can be used for volume control in audio amplifiers and mixers.
2. Industrial automation: It is suitable for setting precise resistance values in industrial control systems.
3. Test and measurement instruments: The device enables programmable resistance for calibration and testing purposes.
4. Consumer electronics: It can be utilized in devices such as TVs, gaming consoles, and home appliances for control purposes.

Detailed and Complete Alternative Models

1. MCP4131T-502E/ML: Similar to the MCP4231T-502E/ML but with a single channel instead of two.
2. MCP4251T-502E/ML: Offers four channels instead of two, providing more flexibility in circuit design.
3. MCP4261T-502E/ML: This model includes additional features like an integrated EEPROM for storing resistance settings.

These alternative models offer similar functionality but with varying channel counts and additional features to cater to different application requirements.

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