TSC2100IRHB

Overview

The TSC2100IRHB is a resistive touch screen controller manufactured by Texas Instruments, housed in a VQFN-32 package. It integrates a 12-bit analog-to-digital converter with sampling rates of 125 kS/s and 48 kS/s. The device operates within a supply voltage range of 2.7 V to 3.6 V and supports interfaces including SPI, I2S, serial, and 4-wire configurations. Designed for industrial environments, it functions between -40°C and +85°C. Key integrated features include an audio CODEC and a headphone/speaker amplifier, consolidating touch and audio processing capabilities.

Feature Summary

• Integrated 12-bit ADC with dual sampling rates of 125 kS/s and 48 kS/s
• Built-in stereo audio CODEC with headphone and speaker amplifiers
• Supports multiple interface protocols: SPI, I2S, Serial, and 4-Wire
• Operates on a single supply voltage from 2.7 V to 3.6 V

Applications

• Industrial control panels requiring combined touch and audio input
• Portable devices utilizing 4-wire resistive touch screens
• Embedded systems needing integrated audio processing and touch digitization

Procurement Notes

Verify the specific suffix 'IRHB' corresponds to the VQFN-32 package and industrial temperature grade (-40°C to +85°C). Confirm moisture sensitivity level requirements during storage and handling. Ensure the ordering suffix matches the exact pinout and thermal characteristics defined in the official datasheet to avoid compatibility issues.

Selection Notes

Select this component when a single IC must handle both resistive touch screen digitizing and low-power audio codec functions. The 12-bit resolution provides adequate precision for standard resistive applications. Verify that the host processor supports the required SPI or I2S interface modes. Consider the VQFN-32 footprint constraints during PCB layout design.

Part Context

The TSC2100 belongs to the TSC2100 series of touch screen controllers from Texas Instruments. This series combines touch sensing with audio functionality, distinguishing it from pure touch controllers like the TSC2000 series. The IRHB variant specifically denotes the industrial temperature range and VQFN-32 packaging format.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternatives based on interface compatibility (SPI/I2S) and package similarity (VQFN-32). Note that direct pin-to-pin replacements may require schematic adjustments due to integrated audio features.