TPL0501-100RSER

Digital Potentiometers Overview

The TPL0501-100RSER is a single-channel digital potentiometer manufactured by Texas Instruments. It features 256 tap positions with a linear taper and a nominal end-to-end resistance of 100 kΩ. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V and utilizes an SPI-compatible serial interface for register access. Key electrical specifications include a typical temperature coefficient of 35 ppm/°C, ±20% resistance tolerance, and a wiper resistance of approximately 25 Ω. It is housed in an 8-UQFN (1.5x1.5 mm) surface-mount package and supports an operating temperature range of -40°C to +125°C.

Digital Potentiometers Feature Summary

• Single-channel configuration with 256 discrete tap positions
• SPI-compatible serial interface for control
• Low temperature coefficient of 35 ppm/°C
• Wide operating voltage range of 2.7 V to 5.5 V

Digital Potentiometers Applications

• Adjustable power supplies
• Gain adjustment and offset trimming in amplifiers
• Precision calibration of setpoint thresholds
• Sensor trimming and calibration
• Replacement for mechanical potentiometers

Digital Potentiometers Procurement Notes

Verify the specific suffix 'RSER' corresponds to the tape-and-reel packaging format when ordering. Confirm that the 100 kΩ resistance value matches the design requirements, as other variants may exist within the TPL0501 family. Ensure the 8-UQFN footprint dimensions are compatible with the PCB layout constraints.

Digital Potentiometers Selection Notes

Select this component for applications requiring precise digital control of resistance without mechanical wear. The 256-tap resolution offers sufficient granularity for many calibration tasks. Consider the volatile memory type, which requires re-initialization upon power-up if state retention is critical. The wide temperature range makes it suitable for industrial environments.

Digital Potentiometers Part Context

The TPL0501 series consists of single-channel digital potentiometers available in various resistance values and packages. The TPL0501-100 variant specifically denotes the 100 kΩ end-to-end resistance option. The RSER suffix indicates the reel-based packaging format used for automated assembly processes.

Digital Potentiometers Replacement Considerations

Direct pin-to-pin replacements within the same family include other TPL0501 variants with different resistance values or packaging options, provided the electrical parameters meet the circuit requirements.