TSC2004IRTJR – TEXAS INSTRUMENTS

The TSC2004IRTJR is a Texas Instruments single-chip, 12-bit, I²C interface, capacitive touch-screen controller. It operates from a 2.7V to 5.5V supply voltage range, drawing a typical operating current of 1.5mA. Packaged in a space-saving 16-pin TSSOP (Thin Shrink Small Outline Package), this device features advanced noise filtering and self-calibration routines minimizing the impact of parasitic capacitance and ensuring reliable performance even in noisy environments. Its key advantage lies in its low-power consumption and high integration, eliminating the need for external components like charge pumps or analog-to-digital converters commonly found in competing solutions._x000D_
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The TSC2004IRTJR employs a mutual capacitance sensing technique to detect finger touches on a capacitive touchscreen. It supports up to 16 independent sensor channels, enabling the creation of complex touch interfaces. The device’s I²C interface simplifies integration with microcontrollers, requiring minimal host processor overhead. Common use cases include portable devices, consumer electronics with small form factors, and applications where battery life is critical. The integrated self-calibration significantly reduces system complexity and enhances the robustness of the touch interface, making it an ideal choice for demanding applications.