Microchip Technology

MCP4432-502E/ST  

Digital Potentiometers

MCP4432-502E/ST Description

The MCP4432-502E/ST is a digital potentiometer from Microchip Technology, designed for high-precision applications requiring a rheostat configuration. This device features a resistance of 5kΩ with a tolerance of ±20%, making it suitable for applications where precise resistance control is essential. The MCP4432-502E/ST operates within a wide supply voltage range of 1.8V to 5.5V, ensuring compatibility with various power supply configurations.

With 129 taps and a linear taper, the MCP4432-502E/ST offers fine control over resistance levels, providing a high degree of granularity for resistance adjustment. The device's wiper resistance is typically 75Ω, ensuring minimal impact on circuit performance. The MCP4432-502E/ST is equipped with volatile memory, which means it retains its settings as long as power is supplied, making it ideal for applications where dynamic resistance adjustment is required.

The MCP4432-502E/ST is housed in a 14-TSSOP package, suitable for surface-mount applications, and is available in tube packaging. This device is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards. The moisture sensitivity level (MSL) is 1 (unlimited), making it suitable for a wide range of manufacturing environments.

MCP4432-502E/ST Features

• Configuration: Rheostat
• Resistance: 5kΩ with ±20% tolerance
• Number of Taps: 129
• Wiper Resistance: 75Ω (typical)
• Taper: Linear
• Interface: I2C
• Memory Type: Volatile
• Voltage Range: 1.8V to 5.5V
• Temperature Coefficient: 150ppm/°C (typical)
• Features: Selectable Address
• Package: 14-TSSOP
• Mounting Type: Surface Mount
• Number of Circuits: 4

The MCP4432-502E/ST also offers selectable address features, allowing multiple devices to be connected to the same I2C bus without address conflicts. This feature is particularly beneficial in complex systems where multiple digital potentiometers are required.

MCP4432-502E/ST Applications

The MCP4432-502E/ST is ideal for applications requiring precise resistance control, such as:

• Audio Applications: Volume control, tone control, and other audio signal processing tasks.
• Power Management: Adjusting voltage levels in power supplies and regulators.
• Sensor Calibration: Fine-tuning sensor outputs to match specific requirements.
• Medical Devices: Precision control in medical instrumentation.
• Industrial Control: Adjusting parameters in industrial automation systems.

The device's wide operating voltage range and low temperature coefficient make it suitable for applications in varying environmental conditions. The selectable address feature allows for easy integration into systems with multiple digital potentiometers, enhancing the flexibility and scalability of the design.

Conclusion of MCP4432-502E/ST

The MCP4432-502E/ST from Microchip Technology is a versatile digital potentiometer that offers high precision and flexibility. Its rheostat configuration, wide supply voltage range, and selectable address feature make it an excellent choice for a variety of applications, from audio processing to industrial control. The device's compliance with environmental and safety standards ensures it meets the requirements of modern electronics manufacturing. With its fine control over resistance levels and robust performance characteristics, the MCP4432-502E/ST stands out as a reliable and efficient solution for applications requiring precise resistance adjustment.

MCP4432-502E/ST Documents

Download datasheets and manufacturer documentation for MCP4432-502E/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 Cancel 08/Feb/2017       Lead Frame 10/Jan/2017      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH