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Product Detailed Parameters
- Description：IC DGTL POT 5KOHM 64TAP SOT23-6
- Series：WiperLock™
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Taper：Linear
- Configuration：Rheostat
- Number of Circuits：1
- Number of Taps：64
- Resistance (Ohms)：5k
- Interface：Up/Down (U/D, CS)
- Memory Type：Non-Volatile
- Voltage - Supply：2.7V ~ 5.5V
- Features：-
- Tolerance：±20%
- Temperature Coefficient (Typ)：150ppm/°C
- Mounting Type：Surface Mount
- Supplier Device Package：SOT-23-6
- Package / Case：SOT-23-6
- Operating Temperature：-40°C ~ 125°C
- Resistance - Wiper (Ohms) (Typ)：70
- Grade：-
- Qualification：-
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Overview
The MCP4022T-502E/CH is a nonvolatile, 6-bit digital potentiometer manufactured by Microchip Technology. It features a 5 kΩ nominal resistance (R_AB) with 64 taps and operates within a supply voltage range of 2.7V to 5.5V. The device utilizes a simple Up/Down (U/D) serial interface for wiper control and incorporates WiperLock™ technology to store settings in internal EEPROM. It is housed in a compact SOT-23-6 package and supports an extended industrial temperature range from -40°C to +125°C.
Feature Summary
- Nonvolatile memory with WiperLock™ technology for power-on recall of wiper settings
- Simple 2-wire Up/Down (U/D) serial control interface
- High-voltage tolerant digital inputs up to 12.5V
- Low static current consumption of 1 µA maximum
Applications
- System calibration and gain adjustment
- Audio volume control
- Voltage reference trimming
- Sensor bias adjustment
Procurement Notes
Verify the specific suffix 'CH' against official Microchip documentation to confirm regional compliance or manufacturing site details. Ensure the ordering code matches the required tape-and-reel quantity and that the component meets RoHS standards as specified in the datasheet.
Selection Notes
Select this model when a rheostat configuration is required, as the MCP4022 variant specifically includes VWZSE testing. Compare against the MCP4021 if potentiometer mode with PSS specifications is needed. Confirm that the 5 kΩ resistance value aligns with the target circuit impedance requirements.
Part Context
This component belongs to the MCP4021/2/3/4 family of low-cost nonvolatile digital potentiometers. While the MCP4021 and MCP4023 are configured as potentiometers, the MCP4022 and MCP4024 are designed for rheostat applications. All variants share identical pinouts and control protocols but differ in electrical testing parameters.
Replacement Considerations
MCP4021T-502E/CH: Functionally similar but configured as a potentiometer with different electrical tests.
FAQ
What is the default wiper setting upon power-up?
The initial factory setting is typically mid-scale (Code = 1Fh hex), unless WiperLock™ technology has been enabled to save a specific application setting.
How does the U/D interface operate?
The interface uses two pins, CS and U/D. Pulling CS low initiates communication; toggling the U/D pin high increments the wiper position, while pulling it low decrements the position.
What is the maximum voltage tolerance for the control inputs?
The CS and U/D inputs are high-voltage tolerant, supporting voltages up to 12.5V relative to VSS, allowing direct interfacing with higher voltage logic systems.
