TSC2046EIRGVT

Overview

The TSC2046EIRGVT is a four-wire resistive touch screen controller manufactured by Texas Instruments. It integrates a 12-bit analog-to-digital converter (ADC) and operates on a supply voltage ranging from 2.2 V to 5.25 V. The device supports serial communication via SPI, 3-wire, or SSI interfaces with sampling rates up to 125 kS/s. It features an internal voltage reference and low power consumption of 780 µA during operation. Housed in a 16-VQFN package with exposed pad, it functions within a temperature range of -40°C to +85°C.

Feature Summary

• 12-bit resolution ADC for precise coordinate detection
• Supports SPI, 3-wire, and SSI digital interfaces
• Internal voltage reference eliminates external components
• Low power consumption of 780 µA active current

Applications

• Handheld devices requiring resistive touch input
• Industrial control panels with 4-wire screens
• Portable medical equipment interfaces
• Automotive infotainment systems

Procurement Notes

Verify the specific suffix 'E' indicates extended or enhanced specifications compared to standard variants. Confirm RoHS compliance status as listed in official datasheets. Check moisture sensitivity level (MSL 2) requirements for storage and handling. Ensure the 16-VQFN footprint matches PCB design constraints. Validate that the internal reference meets system accuracy needs without external calibration.

Selection Notes

Select this component when a 12-bit resolution is required for 4-wire resistive screens. Ensure the host microcontroller supports SPI or 3-wire serial protocols. Verify that the operating voltage range of 2.2 V to 5.25 V aligns with the system power rails. Consider the 16-VQFN package size for space-constrained designs. Confirm thermal performance within the -40°C to +85°C industrial range.

Part Context

This part belongs to the TSC2046 family of touch screen controllers. It shares core functionality with variants like TSC2046IRGVT but may differ in packaging or specific electrical characteristics denoted by the 'E' suffix. It serves as a dedicated interface between resistive touch panels and digital processors.

Replacement Considerations

TSC2046EIRGVTG4 is a lead-free variant of the same functional device. TSC2046IRGVT is a similar model potentially differing in packaging or grade. Verify pin compatibility and electrical parameters before substitution.