TSC2003-Q1 Datasheet, PDF (1/28 Pages) Texas Instruments – I2C TOUCH SCREEN CONTROLLER

TSC2003-Q1
www.ti.com ........................................................................................................................................................................................... SBAS454 – DECEMBER 2008
I²C TOUCH SCREEN CONTROLLER
FEATURES
1
•2 Qualified for Automotive Applications
• 2.5-V To 5.25-V Operation
• Internal 2.5-V Reference
• Direct Battery Measurement (0.5 V To 6 V)
• On-Chip Temperature Measurement
• Touch-Pressure Measurement
• I²C Interface Supports: Standard, Fast, And
High-Speed Modes
• Auto Power Down
• TSSOP-16 Package
APPLICATIONS
• Personal Digital Assistants
• Portable Instruments
• Point-of-Sale Terminals
• Pagers
• Touch Screen Monitors
• Cellular Phones
DESCRIPTION
The TSC2003 is a 4-wire resistive touch screen controller. It also features direct measurement of two batteries,
two auxiliary analog inputs, temperature measurement, and touch-pressure measurement.
The TSC2003 has an on-chip 2.5-V reference that can be utilized for the auxiliary inputs, battery monitors, and
temperature-measurement modes. The reference can also be powered down when not used to conserve power.
The internal reference operates down to 2.7-V supply voltage while monitoring the battery voltage from 0.5 V to
6 V.
The TSC2003 is available in the small TSSOP-16 package and is specified over the –40°C to 85°C temperature
range.
V_DD
X+
X–
TEMP0
TEMP1
PENIRQ
SCL
V_DD
Y+
Y–
IN1
IN2
V_BAT1
V_BAT2
MUX
SAR
Comparator
CDAC
Internal
Clock
Channel Select
I²C
Interface
and
Control
Logic
SDA
A0
A1
V_REF
Internal
2.5-V REF
1
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.
All trademarks are the property of their respective owners.
2
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.
Copyright © 2008, Texas Instruments Incorporated