TSC2046EIPWG4

Overview

The TSC2046EIPWG4 is a four-wire resistive touch screen controller manufactured by Texas Instruments. It integrates a 12-bit analog-to-digital converter (ADC) with a sampling rate of 125 kS/s and supports SPI, SSI, and 3-wire serial interfaces. The device operates on a supply voltage ranging from 2.2 V to 5.25 V with a typical operating current of 280 uA. It is housed in a 16-pin TSSOP package and functions within an industrial temperature range of -40°C to +85°C. This component serves as a dedicated interface for converting touch coordinates into digital data.

Feature Summary

• 12-bit resolution ADC with 125 kS/s sampling rate
• Supports SPI, SSI, and 3-wire serial communication protocols
• Low power consumption with 280 uA operating current
• Industrial temperature range (-40°C to +85°C)

Applications

• Resistive touch screen coordinate acquisition
• Portable electronic devices requiring low-power touch input
• Industrial human-machine interfaces (HMI)
• Embedded systems with SPI-based microcontrollers

Procurement Notes

Verify the End-of-Life (EOL) status before procurement, as the manufacturer has indicated this product will be discontinued. Confirm that the TSSOP-16 package aligns with existing PCB footprints. Check for moisture sensitivity level (MSL 2) handling requirements during storage and assembly. Ensure the design accommodates the specified 2.2 V to 5.25 V supply voltage range.

Selection Notes

Select the TSC2046EIPWG4 when a 12-bit resolution and SPI interface are required for resistive touch applications. Compare against the TSC2046IRGVR if a VQFN package or different thermal profile is needed. Verify that the 280 uA current draw meets system power constraints. Ensure the host microcontroller supports the necessary serial clock speeds for the chosen interface mode.

Part Context

This part belongs to the TSC2046E series of touch screen controllers. It shares core functionality with variants like the TSC2046EIPW and TSC2046EIRGVT but differs in packaging (TSSOP vs. VQFN) and specific suffix codes indicating manufacturing revisions or testing standards. The 'G4' suffix typically denotes lead-free and RoHS compliance details specific to Texas Instruments' product line.

Replacement Considerations

The TSC2046EIPW is a direct pin-compatible alternative within the same series. For board space optimization, the TSC2046EIRGVT offers identical electrical performance in a smaller VQFN-16 package. Verify that any substitute maintains the 12-bit resolution and SPI compatibility.