MCP4262-502E/UN

Memory Type:	Non-Volatile
Base Part Number:	MCP4262
Supplier Device Package:	10-MSOP
Package / Case:	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Operating Temperature:	-40°C ~ 125°C
Resistance - Wiper (Ohms) (Typ):	75
Temperature Coefficient (Typ):	150 ppm/°C
Tolerance:	±20%
Features:	--
Voltage - Supply:	1.8 V ~ 5.5 V
Series:	WiperLock™
Interface:	SPI
Resistance (Ohms):	5k
Number of Taps:	257
Number of Circuits:	2
Configuration:	Rheostat
Taper:	Linear
Part Status:	Active
Packaging:	Tube

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Overview

MCP4262-502E/UN is a data acquisition device specifically designed for digital potentiometers applications. It has an 8-bit resolution and allows users to control the resistance analog settings with an I2C interface. The device has a non-volatile register that provides a non-volatile setting. It also features two potentiometer selection pins and a write protection pin.

Applications and Benefits

The MCP4262-502E/UN can be used in a variety of applications, including battery management, AC/DC power control, motor and power supply control, motor speed control, and other automatic control applications that require resistance setting control. It offers several benefits, including excellent I2C bus compatibility, fast write and read access times, and low voltage operation.

Working Principle

The MCP4262-502E/UN uses an internal potentiometer with end to end resistive elements comprised of resistor network inside the device. This network is divided into 8-bit steps so that incrementing from one resistance number to the next, the incremental resistance is equal. When powered on, the device maintains its wiper position thanks to the persistent register setting. The device features a single 8-bit nonvolatile register that stores the wiper position setting as a resistance value. The embedded microcontroller can then access the setting over the I2C interface. To adjust the setting, the user sends data to the device specifying the new resistance setting, and the microcontroller will move the wiper of the potentiometer up or down to the new resistance value.

Conclusion

MCP4262-502E/UN is an ideal data acquisition device for digital potentiometers applications. It has an 8-bit resolution, non-volatile register, fast write/read access times, and low voltage operation capabilities. Moreover, the device allows users to control the resistance analog settings over an I2C interface for applications such as battery management, AC/DC power control, motor speed control, and other automatic control solutions.

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