TPL0401A-10DCKR

Digital Potentiometers Overview

The TPL0401A-10DCKR is a single-channel digital potentiometer manufactured by Texas Instruments, housed in a compact SC-70-6 surface-mount package. It features a 10 kΩ end-to-end resistance with a linear taper and offers 128 tap positions for 7-bit resolution. The device communicates via an I²C serial interface and operates within a supply voltage range of 2.7 V to 5.5 V. Key electrical specifications include a typical temperature coefficient of 22 ppm/°C, a resistance tolerance of ±20%, and a static current consumption of only 1.5 µA. It utilizes volatile memory, resetting to the mid-scale position (tap 64) upon power-up.

Digital Potentiometers Feature Summary

• I²C Interface: Supports standard and fast-mode communication for efficient control.
• Compact Packaging: Available in a 6-pin SC-70 package measuring 2.15 x 1.4 mm.
• Low Power Consumption: Draws only 1.5 µA in standby mode.
• Volatile Memory: Retains settings during operation but resets to mid-scale on power loss.

Digital Potentiometers Applications

• Volume control in audio systems
• Screen brightness adjustment
• Sensor calibration circuits
• Low-frequency feedback loops

Digital Potentiometers Procurement Notes

Verify the specific suffix 'DCKR' corresponds to the SC-70-6 package and tape-and-reel quantity when sourcing. Confirm that the application design accounts for the volatile nature of the wiper position, ensuring the system handles the default mid-scale reset state appropriately after power cycles.

Digital Potentiometers Selection Notes

Select this component when a small form factor and low quiescent current are critical. The 10 kΩ resistance value suits applications requiring moderate impedance levels. Ensure the host microcontroller supports the required I²C clock speeds and that the ±20% tolerance meets the circuit's accuracy requirements without needing external trimming.

Digital Potentiometers Part Context

This part belongs to the TPL0401 family of digital potentiometers from Texas Instruments. The 'A' designation typically indicates specific performance grades or revisions within the series, while '10' denotes the 10 kΩ resistance value. The DCKR suffix identifies the specific tape-and-reel packaging configuration for automated assembly.

Digital Potentiometers Replacement Considerations

Direct replacements within the same family include the TPL0401B-10DCKR and TPL0401C-10DCKR, which share identical pinouts and interfaces but may differ in resistance tolerance or temperature coefficient specifications. Verify datasheet details for these variants before substitution.