TSC2046IPW

The TSC2046IPW integrated controller, enclosed in a 16-pin TSSOP package, is a 4-wire resistive touchscreen controller. The design of the chip is based on a 12-bit SAR-type A/D converter and input circuits designed to work with the touchscreen. The controller features a touch detection sensor with an external interrupt pin signaling a touch event. Additional features of the controller include an internal 2.5V reference voltage source, a temperature sensor, and a battery voltage measurement circuit. The controller can also measure the pressure applied to the touchscreen. The chip also includes one universal external A/D converter input. Communication with the master system is achieved through a 3-wire synchronous serial interface compatible with SPI and QSPI standards.

The TSC2046 is a pin-compatible successor to the ADS7846 chip. It can be used in various devices that utilize resistive touch panels, such as mobile phones, portable terminals, pagers, payment terminals, GPS devices, etc.

Features:

- A/D conversion speed: 125kSPS
- Maximum non-linearity of the converter INL: ±2LSB
- Battery voltage measurement range: 0÷6V
- Supply voltage:
controller: 2.2÷5.25V
I/O interface: 1.5÷5.25V
- Typical power consumption: <0.75mW @ 2.7V
- Operating temperature: -40÷85°C