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Product Detailed Parameters
- Description：IC MCU TRUETOUCH
- Series：*
- Mfr：Infineon Technologies
- Package：Tray
- Touchscreen：-
- Resolution (Bits)：-
- Interface：-
- Voltage Reference：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Current - Supply：-
- Grade：-
- Qualification：-
Download product information
Overview
The TMA445-44LQI33ZZAT is a TrueTouch Gen4 touchscreen controller manufactured by Infineon Technologies (formerly Cypress Semiconductor). It features an ARM Cortex processor and supports up to 36 sense I/O channels for screens up to 5 inches. Key specifications include 10 V Tx drives, 4.5 uW deep sleep power consumption, and typical accuracy at 0.5 mm. The device incorporates Charger Armor technology for noise immunity and display sync capabilities.
Feature Summary
- Charger Armor adaptive noise suppression
- Display Noise Elimination via blanking time scanning
- DualSense self and mutual capacitance sensing
- Glove touch and passive stylus support
Applications
- Mobile handsets
- Tablets
- On-cell and in-cell display integration
Procurement Notes
Verify the manufacturer origin as Infineon Technologies, noting the historical association with Cypress Semiconductor. Confirm the package type matches the QFN-44 variant listed for the TMA445 family. Ensure compatibility with the required sensor stackup and interface requirements before procurement.
Selection Notes
Select this model for applications requiring robust charger noise immunity and low power consumption. The TMA445 supports up to 36 sensors and 5-inch displays. Consider the TMA445A if face detection functionality is required, as it is not available on the standard TMA445.
Part Context
This component belongs to the TrueTouch Gen4 family of high-performance touchscreen controllers. The Gen4 series is designed to eliminate charger and display noise, offering design flexibility for both traditional and integrated display stackups within the mobile and tablet market segments.
Replacement Considerations
The TMA445A is a compatible alternative within the same family that adds face detection capability while maintaining similar core specifications and form factors.
