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WQFN (RTJ) 20 16 mm² 4 x 4 open-in-new Find other Touch screen controllers

Features

  • 4-Wire Touch Screen Interface
  • Ratiometric Conversion
  • Single 1.2V to 3.6V Supply
  • Preprocessing to Reduce Bus Activity
  • High-Speed SPI-Compatible Interface
  • Internal Detection of Screen Touch
  • Register-Based Programmable:
    • 10-Bit or 12-Bit Resolution
    • Sampling Rates
    • System Timing
  • On-Chip Temperature Measurement
  • Touch Pressure Measurement
  • Auto Power-Down Control
  • Low Power:
    • 707µW at 1.8V, 50SSPS
    • 544µW at 1.6V, 50SSPS
    • 280µW at 1.2V, 50SSPS
    • 69µW at 1.6V, 8.2kSPS Eq. Rate
    • 43µW 1.2V, 8.2kSPS Eq. Rate
  • Enhanced ESD Protection:
    • ±8kV HBM
    • ±1kV CDM
    • ±25kV Air Gap Discharge
    • ±12kV Contact Discharge
  • 4 × 4 QFN-20 and 0.4mm 4 × 4 XTQFN-20(1) Packages
  • APPLICATIONS
    • Personal Digital Assistants
    • Cellular Phones
    • Portable Instruments
    • Point-of-Sale Terminals
    • MP3 Players, Pagers
    • Multiscreen Touch Control Systems

(1) XTQFN package available Q4, 2009.
U.S. Patent No. 6246394; other patents pending.
SPI is a trademark of Motorola, Inc.
All other trademarks are the property of their respective owners.

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Description

The TSC2006 is a very low-power touch screen controller designed to work with power-sensitive, handheld applications that are based on advanced low-voltage processors. It works with a supply voltage as low as 1.2V, which can be supplied by a single-cell battery. It contains a complete, ultralow-power, 12-bit, analog-to-digital (A/D) resistive touch screen converter, including drivers and the control logic to measure touch pressure.

In addition to these standard features, the TSC2006 offers preprocessing of the touch screen measurements to reduce bus loading, thus reducing the consumption of host processor resources that can then be redirected to more critical functions.

The TSC2006 supports an SPI-compatible serial bus up to 25MHz. It offers programmable resolution of 10 or 12 bits to accommodate different screen sizes and performance needs.

The TSC2006 is available in a miniature 20-lead, 4 × 4 QFN package, and is characterized for the -40°C to +85°C industrial temperature range.

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Technical documentation

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Type Title Date
* Datasheet 1.2V to 3.6V, 12-bit, Nanopower, 4-Wire Touch Screen Controller w/SPI Interface datasheet (Rev. C) Mar. 11, 2009
Application notes PCB Layout Guideline for TI Resistive TSC Devices Oct. 04, 2012
Application notes POR and Resets in TSC2004/5/6 Oct. 16, 2011
Application notes TSC2006 WinCE® 5 0 Driver Mar. 31, 2009
Application notes TSC2006 WinCE® 6.0 Driver Mar. 31, 2009
Application notes TSC2005/6 Linux® Drivers Mar. 29, 2009
Application notes Important Considerations to Assure a Safe POR Mar. 10, 2009
Application notes Using a touch-screen controller’s auxiliary inputs Oct. 12, 2007
Application notes Reducing Analog Input Noise in Touch Screen Systems (Rev. A) Sep. 15, 2007
Application notes Calibration in touch-screen systems Aug. 10, 2007
Application notes Set Up and Use TSC Timings Jun. 07, 2007
Application notes Operation Schemes of Touch Screen Controllers May 21, 2007
User guides TSC2006EVM and TSC2006EVM-PDK Jan. 05, 2007
Application notes Apply TI TSC for Various and Multiple Functions Dec. 11, 2006

Design & development

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QFN (RTJ) 20 View options

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