TSC2004
- 4-Wire Touch Screen Interface
- Ratiometric Conversion
- Single 1.2V to 3.6V Supply
- Preprocessing to Reduce Bus Activity
- High-Speed I2C-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:
- 760µW at 1.8V, 50SSPS
- 580µW at 1.6V, 50SSPS
- 285µW at 1.2V, 50SSPS
- 74µW at 1.6V, 8.2kSPS Eq. Rate
- 47µW at 1.2V, 8.2kSPS Eq. Rate
- Enhanced ESD Protection:
- ±8kV HBM
- ±1kV CDM
- ±25kV Air Gap Discharge
- ±12kV Contact Discharge
- 2.5 x 2.5 WCSP-18 and 4 x 4 QFN-20 Package
- APPLICATIONS
- Cellular Phones
- Portable Instruments
- MP3 Players, Pagers
- Multiscreen Touch Control
U.S. Patent No. 6,246,394; other patents pending.
I2C is a trademark of NXP Semiconductors.
All other trademarks are the property of their respective owners
The TSC2004 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 TSC2004 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 TSC2004 supports an I2C serial bus and data transmission protocol in all three defined modes: standard, fast, and high-speed. It offers programmable resolution of 10 or 12 bits to accommodate different screen sizes and performance needs.
The TSC2004 is available in a miniature, 18-lead, 5 x 5 array, (2.554 ±0.54)mm x (2.554 ±0.54)mm wafer chip-scale package (WCSP), and a 20-pin, 4 x 4 QFN package. Both packages are characterized for the -40°C to +85°C industrial temperature range.
Technical documentation
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | 1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire Touch Scrn Cntrlr w/I²C™ Int datasheet (Rev. E) | 21 Mar 2008 | |
| Application note | PCB Layout Guideline for TI Resistive TSC Devices | 04 Oct 2012 | ||
| Application note | POR and Resets in TSC2004/5/6 | 16 Oct 2011 | ||
| Application note | TSC2004 Linux® Driver | 29 Mar 2009 | ||
| Application note | TSC2004 WinCE® 6.0 Driver | 29 Mar 2009 | ||
| Application note | Important Considerations to Assure a Safe POR | 10 Mar 2009 | ||
| Analog Design Journal | Using a touch-screen controller’s auxiliary inputs | 12 Oct 2007 | ||
| Application note | On TSC2004 Power Consumption | 08 Oct 2007 | ||
| Application note | Reducing Analog Input Noise in Touch Screen Systems (Rev. A) | 15 Sep 2007 | ||
| Analog Design Journal | Calibration in touch-screen systems | 10 Aug 2007 | ||
| Application note | Set Up and Use TSC Timings | 07 Jun 2007 | ||
| Application note | Operation Schemes of Touch Screen Controllers | 21 May 2007 | ||
| Application note | Apply TI TSC for Various and Multiple Functions | 11 Dec 2006 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
TSC200XSW-LINUX — Linux Driver for TSC200X
Linux Mainline Status
Available in Linux Main line: Yes
Available through git.ti.com: N/A
Supported (...)
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| DSBGA (YZK) | 24 | Ultra Librarian |
| WQFN (RTJ) | 20 | Ultra Librarian |
Ordering & quality
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- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
- Fab location
- Assembly location
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