TSC2111IRGZRG4

Overview

The TSC2111IRGZRG4 is a low-power, high-precision touch screen controller manufactured by Texas Instruments. It features a 12-bit analog-to-digital converter and two digital-to-analog converters, supporting resistive touch screens with up to four wires. The device operates on a single power supply ranging from 3 V to 3.6 V, with a typical supply current of 68 µA. It supports SPI and I2C serial interfaces for communication. The component is housed in a 48-pin VQFN package (7x7 mm) with an exposed pad, suitable for surface-mount assembly. It includes integrated temperature sensing and battery monitoring capabilities.

Feature Summary

• Integrates a 12-bit ADC and dual DACs for precise coordinate detection and auxiliary functions
• Supports multiple serial communication protocols including SPI and I2C
• Features low-power operation with minimal active current consumption
• Includes internal temperature sensor and battery voltage monitoring

Applications

• Portable handheld devices requiring resistive touch input
• Industrial control panels with rugged interface requirements
• Medical equipment needing precise touch interaction
• Automotive infotainment systems with touch screen displays

Procurement Notes

Verify the complete part number including suffix RG4, which indicates tape and reel packaging. Confirm that the supplier provides original manufacturer documentation or datasheets. Ensure the component meets RoHS compliance standards as specified by Texas Instruments. Check for moisture sensitivity level ratings if storage conditions are critical. Validate that the source is an authorized distributor to guarantee authenticity.

Selection Notes

Select this component when a balance of precision and low power is required for resistive touch applications. The integrated DACs allow for additional functionality beyond simple touch detection. Consider the 48-VQFN package size for space-constrained designs. Ensure the host microcontroller supports the required SPI or I2C interface speeds. Evaluate the operating temperature range against environmental conditions.

Part Context

This part belongs to the TSC2111 series of touch screen controllers from Texas Instruments. It is designed for applications demanding high accuracy and low power consumption. The device integrates necessary analog front-end components to simplify system design. It serves as a direct replacement for older generation touch controllers in existing designs.

Replacement Considerations

Check for pin-compatible alternatives within the TSC2000 or TSC2100 series if different interface support is needed. Verify package dimensions and thermal characteristics when substituting. Ensure the replacement part supports the same resolution and sampling rates.