TPL0102-100PWR

Digital Potentiometers Overview

The TPL0102-100PWR is a dual-channel digital potentiometer IC manufactured by Texas Instruments. It features two independent 100 kOhm resistive elements with 256 taps, providing linear wiper positioning. The device utilizes an I2C serial interface for control and includes non-volatile memory to retain the wiper setting upon power loss. It operates on a single supply voltage ranging from 2.7 V to 5.5 V or a dual supply of ±2.25 V to ±2.75 V. The component is housed in a 14-TSSOP package and supports standard (100 kHz) and fast (400 kHz) I2C modes.

Digital Potentiometers Feature Summary

• Dual-channel architecture with 256 discrete tap positions per channel
• Non-volatile memory retains wiper settings after power cycle
• I2C compatible interface supporting 100 kHz and 400 kHz speeds
• Linear taper with ±20% resistance tolerance and 92 ppm/°C temperature coefficient

Digital Potentiometers Applications

• Programmable gain amplifiers requiring precise gain adjustment
• Voltage reference trimming in data acquisition systems
• Audio volume control circuits with digital interface requirements
• Sensor bias current adjustment in instrumentation applications

Digital Potentiometers Procurement Notes

Verify the specific suffix PWR indicates the 14-TSSOP package variant when sourcing. Confirm RoHS3 compliance status as required by project specifications. Ensure the I2C address configuration matches the system bus design, as the device supports selectable addressing options. Check for any recent PCN notifications regarding wafer fab or assembly source changes that may affect long-term availability.

Digital Potentiometers Selection Notes

Select this model for applications requiring dual independent digital pots in a compact surface-mount package. The 100 kOhm value suits moderate impedance circuits; verify against load requirements to ensure adequate drive capability. Consider the -40°C to +85°C operating range for industrial environments. Compare contact resistance specifications if low-voltage signal switching is involved, noting the typical 25 Ohm contact resistance.

Digital Potentiometers Part Context

This component belongs to the TPL0102 family of digital potentiometers. Variants such as TPL0102-100RUCR offer the same electrical characteristics but utilize a 14-QFN package instead of TSSOP. The TPL0102-100QPWREP represents the qualified enhancement version with extended temperature capabilities up to 125°C. All variants share the core 256-tap non-volatile functionality and I2C interface.

Digital Potentiometers Replacement Considerations

For pin-compatible replacements within the same package, consider the TPL0102-100RUCR which uses a 14-QFN footprint. For extended temperature ranges, the TPL0102-100QPWREP provides operation up to 125°C. Verify that any substitute maintains the 256-tap resolution and non-volatile memory requirement.