Overview
The TSC2046EIPWR is a 4-wire touch screen controller produced by Texas Instruments. It is the next-generation version of the ADS7846, offering enhanced features and compatibility. This controller supports a low-voltage I/O interface from 1.5V to 5.25V and is 100% pin-compatible with the ADS7846, making it an easy upgrade for existing applications. The TSC2046EIPWR features an internal 2.5V reference, direct battery measurement, on-chip temperature measurement, and touch-pressure measurement. It is designed for low-power consumption, making it ideal for battery-operated systems such as personal digital assistants, pagers, cellular phones, and other portable equipment.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Package Type | TSSOP | |
| Number of Pins | 16 | |
| Operating Temperature Range | -40 to 85 | °C |
| Supply Voltage (Analog) | 2.2 to 5.25 | V |
| Supply Voltage (I/O VDD) | 1.5 to 5.25 | V |
| Resolution | 12 Bits | |
| SAR Sample Rate (Max) | 125 kHz | |
| Control Interface | SPI, QSPI | |
| ESD Protection | ±15kV Contact Discharge | |
| Power Consumption (Typical at 2.7V) | < 0.75 mW |
Key Features
- Same pinout as ADS7846, allowing for easy upgrades.
- Low-voltage I/O interface from 1.5V to 5.25V.
- Internal 2.5V reference for auxiliary input, battery monitor, and temperature measurement.
- Direct battery measurement (0V to 6V) and on-chip temperature measurement.
- Touch-pressure measurement and QSPI/SPI 3-wire interface.
- Auto power-down and extended ESD protection exceeding IEC 61000-4-2 requirements.
- No external components needed.
- Available in TSSOP-16, QFN-16, and VFBGA-48 packages.
Applications
- Personal Digital Assistants (PDAs).
- Portable Instruments.
- Point-of-Sale Terminals.
- Pagers.
- Touch Screen Monitors.
- Cellular Phones.
Q & A
- What is the TSC2046EIPWR?
The TSC2046EIPWR is a 4-wire touch screen controller produced by Texas Instruments, designed for low-voltage I/O and extended ESD protection.
- What are the key features of the TSC2046EIPWR?
Key features include low-voltage I/O, internal 2.5V reference, direct battery and temperature measurement, touch-pressure measurement, and QSPI/SPI interface.
- What are the operating temperature and voltage ranges of the TSC2046EIPWR?
The operating temperature range is -40°C to 85°C, and the supply voltage range is 2.2V to 5.25V for analog and 1.5V to 5.25V for I/O.
- What types of packages are available for the TSC2046EIPWR?
The TSC2046EIPWR is available in TSSOP-16, QFN-16, and VFBGA-48 packages.
- What is the resolution and sample rate of the TSC2046EIPWR?
The resolution is 12 bits, and the maximum sample rate is 125 kHz.
- Does the TSC2046EIPWR require external components?
No, the TSC2046EIPWR does not require any external components.
- What is the ESD protection level of the TSC2046EIPWR?
The TSC2046EIPWR exceeds IEC 61000-4-2 ESD requirements with ±15kV contact discharge.
- What are some typical applications of the TSC2046EIPWR?
Typical applications include personal digital assistants, portable instruments, point-of-sale terminals, pagers, touch screen monitors, and cellular phones.
- How does the TSC2046EIPWR conserve power?
The TSC2046EIPWR has an auto power-down feature and can power down the internal reference when not in use to conserve power.
- Is the TSC2046EIPWR RoHS compliant?
