SBAS545
–
SEPTEMBER 2011
1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire
Micro TOUCH SCREEN CONTROLLER with I
2
C™ Interface
Check for Samples:
1
FEATURES
Qualified for Automotive Applications
4-Wire Touch Screen Interface
Single 1.2 V to 3.6 V Supply/Reference
Ratiometric Conversion
Effective Throughput Rate:
–
Up to 20 kHz (8-Bit) or 10 kHz (12-Bit)
Preprocessing to Reduce Bus Activity
I
2
C Interface Supports:
–
Standard, Fast, and High-Speed Modes
Simple, Command-Based User Interface:
–
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:
–
32.24
μA
at 1.2 V, Fast Mode, 8.2 kHz Eq
Rate
–
39.31
μA
at 1.8 V, Fast Mode, 8.2 kHz Eq
Rate
–
53.32
μA
at 2.7 V, Fast Mode, 8.2 kHz Eq
Rate
Enhanced ESD Protection:
– ±8
kV HBM
– ±1
kV CDM
– ±25
kV Air Gap Discharge
– ±15
kV Contact Discharge
5 x 6.4 TSSOP-16 Package
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U.S. Patent NO. 6246394; other patents pending.
APPLICATIONS
•
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Media Players
Multiscreen Touch Control Systems
DESCRIPTION
The TSC2007-Q1 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-Q1 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-Q1 supports an I
2
C 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-Q1 is available in a 16-pin TSSOP package. The TSC2007-Q1 is characterized for the
–40°C
to
+85°C industrial temperature range.
1
2
3
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
I C is a trademark of NXP Semiconductors.
All other trademarks are the property of their respective owners.
Copyright
©
2011, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
TI [ TEXAS INSTRUMENTS ]
