TSC2005IYZLT

Product Summary

The TSC2005IYZLT is a very low-power touch screen controller designed to work with power-sensitive, handheld applications that are based on an advanced low-voltage processor. It works with a supply voltage as low as 1.6V, which can be supplied by a single-cell battery. It contains a complete, ultra-low power, 12-bit, analog-to-digital(A/D) resistive touch screen converter, including drivers and the control logic to measure touch pressure. The applications of the TSC2005IYZLT include Personal Digital Assistants, Cellular Phones, Portable Instruments, Point-of-Sale Terminals, MP3 Players, Pagers, Multiscreen Touch Control.

Parametrics

TSC2005IYZLT absolute maximum ratings: (1)Voltage range, Analog input X+, Y+, AUX to SNSGND: -0.4 to SNSVDD + 0.1V; Analog inputX-, Y- to SNSGND: -0.4 to SNSVDD + 0.1V; SNSVDD to SNSGND: -0.3 to 5V; SNSVDD to AGND: -0.3 to 5V; I/OVDD to DGND: -0.3 to 5V; SNSVDD to I/OVDD: -2.40 to +0.3V; (2)Digital input voltage to DGND: -0.3 to I/OVDD + 0.3V; (3)Digital output voltage to DGND: -0.3 to I/OVDD + 0.3V; (4)Power dissipation, WCSP package: (TJ Max - TA)/θJA; (5)Thermal impedance,θJA, Low-K: 113℃/W; High-K: 62℃/W ; (6)Operating free-air temperature range, TA: -40 to +85℃; (7)Storage temperature range, TSTG: -65 to +150℃; (8)Junction temperature, TJ: Max+150℃; (9)Vapor phase (60 sec): +215℃; (10)Lead temperatureInfrared (15 sec): +220℃.

Features

TSC2005IYZLT features: (1)4-Wire Touch Screen Interface; (2)Ratiometric Conversion; (3)Single 1.6V to 3.6V Supply; (4)Preprocessing to Reduce Bus Activity; (5)High-Speed SPI-Compatible Interface; (6)Internal Detection of Screen Touch; (7)Register-Based Programmable: 10-bit or 12-bit resolution; Sampling Rates; System Timing; (8)On-Chip Temperature Measurement; (9)Touch Pressure Measurement; (10)Auto Power-Down Control; (11)Low Power: 800μW at 1.8V, 50SSPS; 600μW at 1.6V, 50SSPS; (12)Enhanced ESD Protection: ±6kV HBM, ±1kV CDM; Target±18kV Air Gap Discharge; Target±15kV Contact Discharge; (13)2.5 x 3 WCSP-18 Package.

Diagrams