| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
IR (Infineon Technologies) |
IC SCREEN CNTRL 32BIT 48QFN |
200 |
|
 |
IR (Infineon Technologies) |
IC SCREEN CNTRL 32BIT 44QFN |
780 |
|
 |
IR (Infineon Technologies) |
IC SCREEN CNTRL 32BIT 48QFN |
151 |
|
 |
IR (Infineon Technologies) |
IC SCREEN CNTRL 32BIT 44QFN |
780 |
|
 |
IR (Infineon Technologies) |
IC SCREEN CNTRL 32BIT 48QFN |
730 |
|
 |
IR (Infineon Technologies) |
IC SCREEN CNTRL 32BIT 48QFN |
200 |
|
 |
IR (Infineon Technologies) |
TRUETOUCH |
0 |
|
Touch screen controllers (TSCs) are specialized integrated circuits designed to process signals from touch-sensitive surfaces and convert them into digital data for host systems. These ICs serve as the interface between touch sensors and processing units, enabling precise position detection, gesture recognition, and pressure sensitivity. With the proliferation of touch-enabled devices in consumer electronics, industrial automation, and automotive systems, TSCs have become critical components for human-machine interaction (HMI).
| Type | Functional Features | Application Examples |
|---|---|---|
| Capacitive TSC | Supports multi-touch, high sensitivity, glass overlay compatibility | Smartphones, tablets, industrial HMIs |
| Resistive TSC | Single-touch detection, low cost, glove operation capability | ATMs, medical devices, POS terminals |
| Optical TSC | Edge-mounted sensors, high durability, large-format support | Digital signage, interactive kiosks |
| Force-Sensing TSC | Pressure measurement with haptic feedback integration | Gaming consoles, automotive controls |
A typical TSC IC includes: 1) Sensor interface circuitry for signal conditioning, 2) Analog-to-digital converter (ADC) for position data digitization, 3) Digital signal processor (DSP) for coordinate calculation, 4) Communication interface (I2C/SPI) for host connection, and 5) Power management module. Advanced designs integrate noise suppression algorithms and self-capacitance/projection-capacitance detection architectures.
| Parameter | Description & Importance |
|---|---|
| Resolution | Position accuracy (e.g., 0.1mm), determines touch precision |
| Sampling Rate | Up to 200Hz for smooth gesture tracking |
| Power Consumption | Typically <100 A for mobile devices |
| Touch Points | Support for 5-10 point simultaneous detection |
| ESD Protection | 8kV contact discharge immunity |
| Operating Temperature | -40 C to +85 C for industrial applications |
| Manufacturer | Product Series | Key Features |
|---|---|---|
| Texas Instruments | TSC34XX | 12-bit resolution, 4-wire resistive sensing |
| STMicroelectronics | STMPE8050 | Capacitive controller with 10-touch detection |
| Synaptics | ClearPad 36000 | Optimized for curved displays |
| Microchip | maXTouch T9 | Low-power mode for IoT devices |
Key considerations include: 1) Sensor type compatibility (capacitive/resistive), 2) Required touch resolution and sampling rate, 3) Power budget constraints, 4) Electromagnetic interference (EMI) immunity requirements, 5) Host processor interface compatibility (I2C/SPI), 6) Operating environment conditions (temperature/humidity), and 7) Cost-effectiveness for target application. For example, automotive applications require AEC-Q100 certified components with extended temperature ranges.
Future development focuses on: 1) Integration with AI algorithms for predictive touch recognition, 2) Enhanced force-sensing capabilities (4D touch), 3) Flexible and foldable display compatibility, 4) Ultra-low-power designs with wake-on-touch functionality, and 5) Advanced security features for biometric authentication. The market is projected to grow at 7.2% CAGR through 2027, driven by AR/VR and autonomous vehicle HMI demands.