TITSC2007IPW
Overview
The TSC2007IPW is a low-power, 12-bit resistive touch screen controller designed for 4-wire resistive panels. It operates over a wide supply range of 1.2V to 3.6V and features an I2C serial interface with an internal preprocessing engine to reduce host processor bus activity. The device also includes integrated functions for measuring touch pressure and on-chip temperature.
Why Choose This Part
The controller excels in power efficiency, consuming only 32.24uA at 1.2V during active 8.2kHz conversion and less than 1uA in shutdown. Its ratiometric conversion and on-chip preprocessing filter noise and reduce the interrupt load on the system microcontroller. The 16-TSSOP package includes a programmable PENIRQ pull-up and enhanced ESD protection for robust board-level integration.
Applications
Key Specifications
Getting Started
To evaluate the TSC2007IPW, engineers can use the TSC2007EVM evaluation module which connects to a PC via a USB platform. Software development involves configuring the I2C bus for Fast Mode (up to 400kHz) and monitoring the PENIRQ pin to trigger coordinate readouts. Ensure the external voltage reference matches the touchscreen excitation voltage for accurate ratiometric measurements.
