TSC2007 12-Bit, nanopower, 4-wire micro touch screen controller   | TI.com

TSC2007
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
12-Bit, nanopower, 4-wire micro touch screen controller  

 

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Description

The TSC2007 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 1.2V, 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.

In addition to these standard features, the TSC2007 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 TSC2007 supports an I2C serial bus and data transmission protocol in all three defined modes: standard, fast, and high-speed. It offers programmable resolution of 8 or 12 bits to accommodate different screen sizes and performance needs.

The TSC2007 is available in a 12-lead,(1.555 ±0.055mm) x (2.055 ±0.055mm), 3 x 4 array, wafer chip-scale package (WCSP), and a 16-pin, TSSOP package. The TSC2007 is characterized for the -40°C to +85°C industrial temperature range.

Features

  • 4-Wire Touch Screen Interface
  • Single 1.2V to 3.6V Supply/Reference
  • Ratiometric Conversion
  • Effective Throughput Rate:
    • Up to 20kHz (8-Bit) or 10kHz (12-Bit)
  • Preprocessing to Reduce Bus Activity
  • I2C™ Interface Supports:
    • Standard, Fast, and High-Speed Modes
  • Simple, Command-Based User Interface:
    • TSC2003 Compatible
    • 8- or 12-Bit Resolution
  • On-Chip Temperature Measurement
  • Touch Pressure Measurement
  • Digital Buffered PENIRQ
  • On-Chip, Programmable PENIRQ Pull-Up
  • Auto Power-Down Control
  • Low Power:
    • 32.24µA at 1.2V, Fast Mode, 8.2kHz Eq Rate
    • 39.31µA at 1.8V, Fast Mode, 8.2kHz Eq Rate
    • 53.32µA at 2.7V, Fast Mode, 8.2kHz Eq Rate
  • Enhanced ESD Protection:
    • ±8kV HBM
    • ±1kV CDM
    • ±25kV Air Gap Discharge
    • ±15kV Contact Discharge
  • 1.5 x 2 WCSP-12 and 5 x 6.4 TSSOP-16 Packages
  • APPLICATIONS
    • Cellular Phones
    • PDA, GPS, and Media Players
    • Portable Instruments
    • Point-of-Sale Terminals
    • Multiscreen Touch Control Systems

U.S. Patent NO. 6246394; other patents pending.
I2C is a trademark of NXP Semiconductors.
All other trademarks are the property of their respective owners.

Parametrics

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Part number Order Touch panel SAR ADC resolution (Bits) Input type Vref (int/ext) Control interface Operating temperature range (C) Rating
TSC2007 Order now 4-Wire     12     Differential
Single-Ended    
Ext     I2C     -40 to 85     Catalog