4-Wire Touch Screen Controller with low voltage digital I/O
Product details
Parameters
Package | Pins | Size
Features
- 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
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Description
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.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | Low Voltage I/O Touch Screen Controller datasheet (Rev. G) | Jan. 17, 2008 |
Application note | PCB Layout Guideline for TI Resistive TSC Devices | Oct. 04, 2012 | |
Application note | Using a touch-screen controller’s auxiliary inputs | Oct. 12, 2007 | |
Application note | Reducing Analog Input Noise in Touch Screen Systems (Rev. A) | Sep. 15, 2007 | |
Application note | Calibration in touch-screen systems | Aug. 10, 2007 | |
Application note | Operation Schemes of Touch Screen Controllers | May 21, 2007 | |
Application note | Apply TI TSC for Various and Multiple Functions | Dec. 11, 2006 | |
Application note | How to Use TI's 4-Wire TSC to Control an 8-Wire Resistive Touch Screen | Mar. 27, 2006 | |
Application note | TSC2046 WinCE 5.0 Driver | Nov. 10, 2005 | |
User guide | TSC2046EVM/TSC2046EVM-PDK User Guide | Jul. 06, 2004 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
BGA MICROSTAR JUNIOR (ZQC) | 48 | View options |
TSSOP (PW) | 16 | View options |
VQFN (RGV) | 16 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
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Support & training
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