TPL1401DSGR

Digital Potentiometers Overview

The TPL1401 is a 256-position digital potentiometer featuring a buffered wiper for improved load regulation in voltage-divider applications. It operates on a 1.8 V to 5.5 V supply with an operating temperature range of –40°C to +125°C. The device offers 1 LSB INL and DNL accuracy, supporting I²C standard, fast, and fast plus modes. Key features include user-programmable nonvolatile memory (NVM), a wiper lock function, and an internal reference. Power consumption is 0.2 mA at 1.8 V. It is housed in an 8-pin WSON package measuring 2 mm × 2 mm.

Digital Potentiometers Feature Summary

• Buffered wiper output for enhanced load regulation
• 1 LSB INL and DNL linearity accuracy
• User-programmable NVM for register retention
• I²C interface supporting up to 1 Mbps

Digital Potentiometers Applications

• Exit and emergency lighting
• Barcode scanner and reader
• Smart speaker
• Video doorbell
• Cordless vacuum cleaner

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and tape/reel specifications. Ensure compatibility with the required I²C address configuration via the A0 pin. Confirm that the application environment stays within the specified voltage and temperature limits for reliable operation.

Digital Potentiometers Selection Notes

Select this component when high load regulation is critical for voltage divider circuits. The buffered wiper distinguishes it from standard digital potentiometers. Consider the internal reference option if a stable voltage source independent of the supply rail is needed. Verify that the 8-bit resolution and 256 taps meet the precision requirements of the target analog set-point application.

Digital Potentiometers Part Context

The TPL1401 belongs to Texas Instruments' family of high-accuracy digital potentiometers. It is designed as a building block for factory calibration and trimming tasks. The device integrates nonvolatile memory to simplify system initialization by retaining user-defined settings across power cycles.

Digital Potentiometers Replacement Considerations

Consult the TI product selection guide for compatible alternatives within the TPL series. Verify pinout compatibility and electrical specifications before substituting. No direct public substitute part numbers are listed in the provided datasheet.