TSC2003IPW

Overview

The TSC2003IPW is a four-wire resistive touch screen controller manufactured by Texas Instruments. It integrates an internal 2.5V reference voltage and supports I2C communication via standard, fast, and high-speed modes. The device operates within a supply voltage range of 2.5V to 5.25V and includes automatic power-down functionality to minimize energy consumption. Key capabilities include precise touch position detection, battery monitoring for two cells, auxiliary analog input measurement, on-chip temperature sensing, and touch pressure evaluation. It is housed in a 16-pin TSSOP package.

Feature Summary

• Integrated 2.5V internal reference voltage reduces external component requirements
• Supports standard, fast, and high-speed I2C bus modes for flexible connectivity
• Enables direct battery measurement (0.5V to 6V), temperature sensing, and pressure detection
• Automatic power-down mode activates during idle periods to conserve power

Applications

• Resistive touch screen position detection systems
• Battery-powered devices requiring integrated voltage monitoring
• Portable electronics with temperature and pressure sensing needs
• Embedded systems utilizing I2C interfaces for peripheral control

Procurement Notes

Verify the specific suffix 'IPW' corresponds to the 16-pin TSSOP package and commercial temperature grade when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets prior to procurement. Ensure the ordering part number matches the exact pinout and electrical specifications required for the target design.

Selection Notes

Select this component when a compact solution for resistive touch interfaces is required alongside auxiliary analog measurements. The integrated reference voltage simplifies board layout compared to discrete solutions. Verify that the system's microcontroller supports the necessary I2C clock speeds and that the operating voltage aligns with the 2.5V to 5.25V specification range.

Part Context

The TSC2003 belongs to the family of touch screen controllers from Texas Instruments, designed specifically for resistive technologies. It serves as a specialized interface between touch panels and host processors, consolidating signal processing functions that would otherwise require multiple discrete components. This integration supports cost-effective and space-constrained embedded designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Evaluate alternative touch controllers based on compatible I2C interfaces, similar voltage ranges, and equivalent package dimensions if substitution is necessary.