Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Channels | 2 linear-taper potentiometers |
| Resistance | 100 kΩ end-to-end per channel |
| Resolution | 256 wiper positions |
| Memory | Nonvolatile wiper-setting storage |
| Interface | I²C-compatible serial control |
| Supply | 2.7 V to 5.5 V single or ±2.25 V to ±2.75 V dual |
| Precision | ±0.5 LSB INL / ±0.25 LSB DNL stated in divider mode |
| Exact Package / Packing | TSSOP (PW), 14 pins; 2000-piece large tape and reel; marking EL-100 |
Product Overview
TPL0102-100PWR contains two 100 kΩ digital potentiometers with 256 positions and nonvolatile memory, allowing calibration or set-point values to survive power cycling without host initialization on every startup.
A digital potentiometer is not a general DAC: the terminal voltages, wiper current and end-to-end resistance limits must remain within the analog supply rails and absolute ratings. It is best used where a resistor ratio or variable resistance is genuinely required.
The -100 suffix identifies the 100 kΩ resistance grade, while PWR selects the 2000-piece TSSOP reel. Both are exact electrical/procurement parts of the order code.
For related devices, see HKEQGOO’s Digital Potentiometers category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | TPL0102-100PWR |
| Channels | 2 linear-taper potentiometers |
| Resistance | 100 kΩ end-to-end per channel |
| Resolution | 256 wiper positions |
| Memory | Nonvolatile wiper-setting storage |
| Interface | I²C-compatible serial control |
| Supply | 2.7 V to 5.5 V single or ±2.25 V to ±2.75 V dual |
| Precision | ±0.5 LSB INL / ±0.25 LSB DNL stated in divider mode |
| Exact Package / Packing | TSSOP (PW), 14 pins; 2000-piece large tape and reel; marking EL-100 |
| Manufacturer Status | Active / Production |
| Part Marking | EL-100 |
Functional Highlights
Nonvolatile memory moves calibration state into the component
Factory trim values can be stored locally, reducing startup writes. Firmware should still manage write endurance and avoid unnecessary nonvolatile updates during normal control loops.
Ratiometric use can be more accurate than relying on absolute 100 kΩ resistance
Divider applications depend mainly on wiper ratio and benefit from the specified INL/DNL/ratiometric tempco. Rheostat applications depend more directly on absolute resistance and wiper resistance.
Design Considerations
- Use volatile writes for frequently changing settings and reserve nonvolatile writes for calibration/configuration changes.
- Check analog terminal voltages and wiper current over every operating condition; I²C logic compatibility alone does not guarantee analog-range compatibility.
- Decide whether the circuit uses ratio or absolute resistance, because the dominant accuracy terms differ.
Product Status and Exact Order Code
Manufacturer status: Active / Production
Texas Instruments lists TPL0102-100PWR as Active / Production; TSSOP (PW), 14 pins; 2000-piece large tape and reel; Level-1-260C-UNLIM; −40°C to +85°C; marking EL-100.
Related Engineering Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
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