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TSC2046

ACTIVE

4-Wire Touch Screen Controller with low voltage digital I/O

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Data sheet

TSC2046

ACTIVE
Data sheet Order now

Product details

SAR ADC resolution (bps) 12 SAR sample rate (max) (ksps) 125 Touch panel 4-Wire Control interface SPI Vref (int/ext) Internal Rating Catalog Operating temperature range (°C) -40 to 85 Analog supply (min) (V) 2.2 Analog supply voltage (max) (V) 5.25 I/O supply voltage (min) (V) 1.5 I/O supply voltage (max) (V) 5.25 Input type Single-ended
SAR ADC resolution (bps) 12 SAR sample rate (max) (ksps) 125 Touch panel 4-Wire Control interface SPI Vref (int/ext) Internal Rating Catalog Operating temperature range (°C) -40 to 85 Analog supply (min) (V) 2.2 Analog supply voltage (max) (V) 5.25 I/O supply voltage (min) (V) 1.5 I/O supply voltage (max) (V) 5.25 Input type Single-ended
TSSOP (PW) 16 32 mm² 5 x 6.4 VQFN (RGV) 16 16 mm² 4 x 4
  • SAME PINOUT AS ADS7846
  • 2.2V TO 5.25V OPERATION
  • 1.5V TO 5.25V DIGITAL I/O
  • INTERNAL 2.5V REFERENCE
  • DIRECT BATTERY MEASUREMENT (0V TO 6V)
  • ON-CHIP TEMPERATURE MEASUREMENT
  • TOUCH-PRESSURE MEASUREMENT
  • QSPI™ AND SPI™ 3-WIRE INTERFACE
  • AUTO POWER-DOWN
  • AVAILABLE IN TSSOP-16, QFN-16, AND VFBGA-48 PACKAGES
  • APPLICATIONS
    • PERSONAL DIGITAL ASSISTANTS
    • PORTABLE INSTRUMENTS
    • POINT-OF-SALE TERMINALS
    • PAGERS
    • TOUCH SCREEN MONITORS
    • CELLULAR PHONES

All trademarks are the property of their respective owners.
  • SAME PINOUT AS ADS7846
  • 2.2V TO 5.25V OPERATION
  • 1.5V TO 5.25V DIGITAL I/O
  • INTERNAL 2.5V REFERENCE
  • DIRECT BATTERY MEASUREMENT (0V TO 6V)
  • ON-CHIP TEMPERATURE MEASUREMENT
  • TOUCH-PRESSURE MEASUREMENT
  • QSPI™ AND SPI™ 3-WIRE INTERFACE
  • AUTO POWER-DOWN
  • AVAILABLE IN TSSOP-16, QFN-16, AND VFBGA-48 PACKAGES
  • APPLICATIONS
    • PERSONAL DIGITAL ASSISTANTS
    • PORTABLE INSTRUMENTS
    • POINT-OF-SALE TERMINALS
    • PAGERS
    • TOUCH SCREEN MONITORS
    • CELLULAR PHONES

All trademarks are the property of their respective owners.

The TSC2046 is a next-generation version to the ADS7846 4-wire touch screen controller which supports a low-voltage I/O interface from 1.5V to 5.25V. The TSC2046 is 100% pin-compatible with the existing ADS7846, and will drop into the same socket. This allows for easy upgrade of current applications to the new version. The TSC2046 also has an on-chip 2.5V reference that can be used for the auxiliary input, battery monitor, and temperature measurement modes. The reference can also be powered down when not used to conserve power. The internal reference operates down to 2.7V supply voltage, while monitoring the battery voltage from 0V to 6V.

The low power consumption of < 0.75mW typ at 2.7V (reference off), high-speed (up to 125kHz sample rate), and on-chip drivers make the TSC2046 an ideal choice for battery-operated systems such as personal digital assistants (PDAs) with resistive touch screens, pagers, cellular phones, and other portable equipment. The TSC2046 is available in TSSOP-16, QFN-16, and VFBGA-48 packages and is specified over the -40°C to +85°C temperature range.

The TSC2046 is a next-generation version to the ADS7846 4-wire touch screen controller which supports a low-voltage I/O interface from 1.5V to 5.25V. The TSC2046 is 100% pin-compatible with the existing ADS7846, and will drop into the same socket. This allows for easy upgrade of current applications to the new version. The TSC2046 also has an on-chip 2.5V reference that can be used for the auxiliary input, battery monitor, and temperature measurement modes. The reference can also be powered down when not used to conserve power. The internal reference operates down to 2.7V supply voltage, while monitoring the battery voltage from 0V to 6V.

The low power consumption of < 0.75mW typ at 2.7V (reference off), high-speed (up to 125kHz sample rate), and on-chip drivers make the TSC2046 an ideal choice for battery-operated systems such as personal digital assistants (PDAs) with resistive touch screens, pagers, cellular phones, and other portable equipment. The TSC2046 is available in TSSOP-16, QFN-16, and VFBGA-48 packages and is specified over the -40°C to +85°C temperature range.
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Technical documentation

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Type Title Date
* Data sheet Low Voltage I/O Touch Screen Controller datasheet (Rev. G) 17 Jan 2008
Application note PCB Layout Guideline for TI Resistive TSC Devices 04 Oct 2012
Analog Design Journal Using a touch-screen controller’s auxiliary inputs 12 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 Operation Schemes of Touch Screen Controllers 21 May 2007
Application note Apply TI TSC for Various and Multiple Functions 11 Dec 2006
Application note How to Use TI's 4-Wire TSC to Control an 8-Wire Resistive Touch Screen 27 Mar 2006
Application note TSC2046 WinCE 5.0 Driver 10 Nov 2005
EVM User's guide TSC2046EVM/TSC2046EVM-PDK User Guide 06 Jul 2004

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Support software

SBAC071 — TSC2046 WinCE5 Example Driver

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Supported products & hardware

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Touchscreen controllers
TSC2046 — 4-Wire Touch Screen Controller with low voltage digital I/O
Software
Support software
TSC2046-WCE5-DRV — TSC2046 WinCE5 Example Driver
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