TPL0401A-10QDCKRQ1

Digital Potentiometers Overview

The TPL0401A-10QDCKRQ1 is a single-channel, automotive-grade digital potentiometer manufactured by Texas Instruments. It features a 10 kΩ end-to-end resistance with 128 taps (7-bit resolution) and linear taper characteristics. The device communicates via an I²C 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, ±20% resistance tolerance, and a static current of 1.5 µA. It utilizes volatile memory, resetting to the mid-scale position (64 taps) upon power-up. The component is housed in a compact SC-70-6 package and is qualified to AEC-Q100 standards for operation between -40°C and +125°C.

Digital Potentiometers Feature Summary

• Automotive qualification (AEC-Q100) supporting -40°C to +125°C operating temperatures
• I²C serial interface with 128-tap resolution and 10 kΩ end-to-end resistance
• Low power consumption with 1.5 µA static current draw
• Volatile storage architecture ensuring default mid-scale reset on power-up

Digital Potentiometers Applications

• Screen brightness control in automotive displays
• Audio volume adjustment systems
• Low-frequency feedback loop tuning
• Sensor calibration circuits

Digital Potentiometers Procurement Notes

Verify the specific suffix 'Q1' confirms AEC-Q100 automotive qualification status against official datasheets. Confirm the '10' designation indicates 10 kΩ resistance value. Ensure the 'DCKR' suffix matches the required SC-70-6 tape-and-reel packaging format for surface-mount assembly processes.

Digital Potentiometers Selection Notes

Select this component when volatile behavior is acceptable, as it lacks non-volatile memory retention. The 10 kΩ resistance value suits applications requiring moderate impedance levels. Verify that the I²C bus speed requirements are compatible with the device's bandwidth capabilities. The SC-70-6 package is suitable for space-constrained PCB layouts.

Digital Potentiometers Part Context

This part belongs to the TPL0401 family of digital potentiometers. The 'A' variant typically denotes specific electrical tolerances or performance grades within the series. The 'Q1' suffix distinguishes it from commercial variants by meeting automotive reliability standards. It serves as a solid-state alternative to mechanical potentiometers in environments requiring high vibration resistance.

Digital Potentiometers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-reference with other TI digital potentiometers such as the TPL0401A-10DCKR for commercial grade equivalents, noting the absence of automotive qualification.