Overview
The TSC2007IPWR, produced by Texas Instruments, is a 12-bit, nanopower, 4-wire micro touch screen controller designed for power-sensitive, handheld applications. It operates with a single supply voltage ranging from 1.2V to 3.6V, making it suitable for devices powered by a single-cell battery. This controller includes a complete, ultra-low power, analog-to-digital (A/D) resistive touch screen converter, along with drivers and control logic to measure touch pressure. It supports an I²C serial bus and data transmission protocol in standard, fast, and high-speed modes, offering programmable resolution of 8 or 12 bits to accommodate various screen sizes and performance needs.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 1.2V to 3.6V |
| Resolution | 8 or 12 bits |
| Interface | I²C (Standard, Fast, High-Speed Modes) |
| Power Consumption | 32.24µA at 1.2V, 39.31µA at 1.8V, 53.32µA at 2.7V (Fast Mode, 8.2kHz Eq Rate) |
| Operating Temperature | -40°C to +85°C |
| Package | 16-pin TSSOP, 12-lead WCSP |
| ESD Protection | ±8kV HBM, ±1kV CDM, ±25kV Air Gap Discharge, ±15kV Contact Discharge |
Key Features
- Ultra-low power consumption to support battery-powered devices.
- Programmable resolution of 8 or 12 bits to accommodate different screen sizes and performance needs.
- On-chip temperature measurement and touch pressure measurement.
- Digital buffered PENIRQ with on-chip, programmable PENIRQ pull-up.
- Auto power-down control to reduce power consumption.
- Enhanced ESD protection.
- Supports I²C serial bus in standard, fast, and high-speed modes.
- Preprocessing of touch screen measurements to reduce bus loading and host processor resources.
Applications
- Cellular Phones
- PDA, GPS, and Media Players
- Portable Instruments
- Point-of-Sale Terminals
- Multiscreen Touch Control Systems
Q & A
- What is the supply voltage range of the TSC2007IPWR?
The supply voltage range is from 1.2V to 3.6V.
- What are the available resolutions for the TSC2007IPWR?
The TSC2007IPWR offers programmable resolution of 8 or 12 bits.
- What type of interface does the TSC2007IPWR support?
The TSC2007IPWR supports an I²C serial bus in standard, fast, and high-speed modes.
- What is the power consumption of the TSC2007IPWR at different voltages?
The power consumption is 32.24µA at 1.2V, 39.31µA at 1.8V, and 53.32µA at 2.7V (Fast Mode, 8.2kHz Eq Rate).
- What is the operating temperature range of the TSC2007IPWR?
The operating temperature range is -40°C to +85°C.
- What types of packages are available for the TSC2007IPWR?
The TSC2007IPWR is available in 16-pin TSSOP and 12-lead WCSP packages.
- What level of ESD protection does the TSC2007IPWR offer?
The TSC2007IPWR offers ±8kV HBM, ±1kV CDM, ±25kV Air Gap Discharge, and ±15kV Contact Discharge ESD protection.
- Does the TSC2007IPWR support touch pressure measurement?
- What is the purpose of the auto power-down control in the TSC2007IPWR?
The auto power-down control reduces power consumption by automatically powering down the device when not in use.
- How does the TSC2007IPWR preprocess touch screen measurements?
The TSC2007IPWR preprocesses touch screen measurements to reduce bus loading, thus reducing the consumption of host processor resources.
