TSC2011
www.ti.com
SBAS516 –NOVEMBER 2011
Nanopower, 4-Wire Resistive Touch and Haptic Controller with I2C™ Serial Interface
Check for Samples: TSC2011
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FEATURES
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4-mm×4-mm QFN-20 and 2.5-mm×2.5-mm
WCSP-25 (Preview) Packages
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Advanced 4-Wire Touch Screen Interface
Preprocessing to Reduce Bus Activity
Integrated Haptic Feedback Control
U.S. Patent No. 6,246,394; 7,812,830; 7,965,280; 7,999,793
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APPLICATIONS
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On Chip H-Bridge: 250mA with Over
Current Status
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Smart Phones, MP3, PMPs, Games
Portable Industrial/Medical Instruments, POS
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On Chip PWM: 20KHz to 160KHz, 0% to
100%
DESCRIPTION
The TSC2011 is a very low power Touch Screen
Controller designed to work with a low cost 4-wire
resistive touch sensor but also includes
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On Chip Synthesizer (10Hz~20KHz Sine)
Wave Amplitude Modulation: 255 Levels
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High-Speed I2C-Compatible Interface
a
comprehensive set of haptic feedbacks to provide a
complete human machine interface. Unlike other
competing solutions that rely on a simple, one way
"trigger" mechanism, the haptic controller and touch
screen controller work side-by-side to ensure
consistent haptic effect and touch detection. This
synchronized operation minimizes the skew between
detection and feedback, reducing system power
consumption. Other advanced features include a
bandwidth saving preprocessing, integrated H-bridge
to drive actuator and GPO pins may be used for an
IR proximity circuit. These make the TSC2011 a
perfect device for low cost consumer applications that
can benefit from many new bidirectional human
machine interactions such as touch, gaming, and
supplemental effects of ring tone.
Register-Based Programmable
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10-Bit or 12-Bit ADC Resolution
Sampling Rates
On Chip Command Profiler
GPO Pins for External Drive or IR TX
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Low Power Design:
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Single 1.2V to 3.6V Supply Possible
Low Power Haptic Driver (PWM+H-Bridge)
Auto Power Down
590µW at 1.8V, 50SSPS
450µW at 1.6V, 50SSPS
50µW at 1.2V, 8.2kSPS
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Enhanced IEC ESD Protection
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±25kV Air Discharge, ±15kV Contact
PENIRQ
PINTDAV
(optional)
DAV
X+
Touch Screen
X–
Touch Engine
With
Analog Signal
Processing
Drivers
Touch Screen
Controller
Y+
Y–
Interface
AD0
SCL
TEMP
AUX/IRRX
Status Register
SDA
H+/U+
H–/U–
Haptic
Controller
RESET
Overcurrent
Protection
Profiler
External H-
Bridge Driver
10~20kHz
PWM
H-Bridge Driver
Parameters
GPIO1/D–/IRTX
GPIO0/D+/IRPWN
Enhanced ESD
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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.
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I2C is a trademark of NXP Semiconductors.
PRODUCT PREVIEW information concerns products in the
formative or design phase of development. Characteristic data and
other specifications are design goals. Texas Instruments reserves
the right to change or discontinue these products without notice.
Copyright © 2011, Texas Instruments Incorporated