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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：-
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Overview
The Infineon TMA525-48BUI25ZZT is a TrueTouch capacitive touchscreen controller from the TMA5XX family, originally developed by Cypress Semiconductor. It supports screen sizes up to 3.0 inches with 25 sensor inputs and four simultaneous touch points. The device features an all-new analog front end combining narrow-band response with high-frequency sampling and hardware DSP filtering for superior noise immunity. Key capabilities include Charger Armor technology eliminating charger noise up to 40 Vpp at 1-500 kHz, DualSense self-plus mutual-capacitance sensing for waterproofing, hover detection, and glove operation. It supports single-layer SLIM sensors and operates in packages including 48 BGA.
Feature Summary
- Charger Armor technology eliminates periodic and broadband charger noise up to 40 Vpp (1-500 kHz).
- DualSense architecture enables dynamic switching between self- and mutual-capacitance measurements for robust waterproofing and hover/glove support.
- Supports single-layer independent multitouch (SLIM) sensors for thin form factors.
- Provides hover tracking up to 10 mm above the surface and palm rejection.
Applications
- Mobile Phones
- Wearables
- Portable Media Players
Procurement Notes
Verify component authenticity through authorized Infineon or Cypress distribution channels. Confirm package integrity and moisture sensitivity level handling procedures prior to assembly. Ensure design compatibility with required operating system drivers and manufacturing test protocols.
Selection Notes
Select this model for applications requiring small screen sizes up to 3.0 inches with low power consumption. The TMA525 is suitable for wearable devices where space is constrained. Consider the TMA568 if larger screens or passive stylus support are required.
Part Context
This component belongs to the TrueTouch TMA5XX series, designed for premium smartphones and mobile devices. The series emphasizes high signal-to-noise ratios and advanced noise immunity technologies to ensure reliable touch performance in electrically noisy environments.
Replacement Considerations
The TMA525A is a variant within the same family offering 24 sensor inputs and available in 28 QFN and 34 CSP packages. Verify pinout and input count compatibility before substitution.
