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Infineon Technologies TMA525-48BUI25ZZT
- Part No.:
- TMA525-48BUI25ZZT
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- -
- Datasheet:
-
TMA525-48BUI25ZZT.pdf
- Description:
- IC MCU TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:1,463
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Product details
Overview
TMA525-48BUI25ZZT from Cypress Semiconductor is a TrueTouch® touchscreen controller IC designed for high-noise environments, featuring 48-channel RX/12-channel TX capacitive sensing, >100 dB SNR, adaptive Charger Armor™ noise suppression up to 40 Vpp, and DualSense™ self-plus mutual-capacitance architecture for waterproofing and glove/hover operation. It targets premium smartphones and tablets with in-cell or on-cell LCD integration.
For engineers reviewing the TMA525-48BUI25ZZT datasheet, TMA525-48BUI25ZZT pinout, TMA525-48BUI25ZZT application, or TMA525-48BUI25ZZT equivalent, key selection criteria include verified charger noise immunity (40 Vpp), simultaneous full-Rx scanning capability, IP67-compliant moisture tolerance, and support for 2-mm passive stylus with palm rejection.
Technical Context
The TMA525-48BUI25ZZT implements a proprietary analog front end combining narrow-band response with high-frequency sampling and hardware DSP filtering to suppress periodic and broadband noise. Its multi-phase TX architecture enables Tx-Boost™ drive up to 10 V, while correlated single-pass scanning enhances SNR beyond industry norms.
DualSense™ dynamically switches between self-capacitance (for hover, glove, and water tolerance) and mutual-capacitance (for precise multi-touch localization). The controller supports external display synchronization to eliminate air gaps or shield layers, enabling direct lamination in ultra-thin form factors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RX Channels | 48 - Enables high-resolution touch detection across large panels (e.g., 6.44" HD displays) |
| TX Channels | 12 - Supports multi-phase transmit for enhanced SNR and noise cancellation |
| Charger Noise Immunity | Up to 40 Vpp at 1–500 kHz - Eliminates false touches during fast charging without external shielding |
| SNR | >100 dB - Ensures reliable touch detection under extreme EMI conditions |
| Waterproofing | IP67-compliant via DualSense - Maintains functionality with surface moisture or submersion |
| Stylus Support | 2-mm passive stylus with 1-mm accuracy - Enables handwriting and fine navigation without active power |
| Scan Architecture | Simultaneous full-Rx scanning - Delivers correlated noise immunity and 120-Hz refresh rate |
Pinout & Package
Package: 128-pin BGA (8 mm × 8 mm, 0.5 mm pitch), RoHS-compliant, thermally enhanced for mobile applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O Power Supply | 1.8 V supply for interface logic; decoupling required per layout guidelines |
| VDDA | Analog Power Supply | 3.3 V supply for analog front end; separate low-noise path mandatory |
| SDA/SCL | I²C Interface | Standard 400 kHz I²C host communication; supports interrupt-driven polling |
| INT | Interrupt Output | Active-low signal indicating valid touch data ready for host read |
| RESET_N | Hardware Reset | Asynchronous active-low reset; minimum 10 µs pulse width required |
| TX[0:11] | Transmit Electrode Drivers | 12 dedicated high-voltage TX outputs supporting multi-phase drive |
| RX[0:47] | Receive Electrode Inputs | 48 differential inputs for mutual/self-capacitance sensing; internal PGA gain configurable |
Key Features
| Feature | Design Value |
|---|---|
| Charger Armor™ | Adaptive real-time detection and suppression of charger-induced noise up to 40 Vpp |
| DualSense™ Sensing | Dynamic switching between self- and mutual-capacitance modes for unified glove/hover/water performance |
| Display Noise Cancellation | External sync input (DISP_SYNC) eliminates need for shield layers or air gaps in in-cell/on-cell stackups |
| Palm Rejection | Hardware-accelerated algorithm rejecting hand-rest artifacts during stylus or finger use |
| 2-mm Stylus Resolution | Sub-millimeter positional accuracy (1 mm) and 7 mm² character capture at 120 Hz |
Applications
| Smartphone Touch Interface | Tablet Display Control |
|---|---|
Use Scenario: High-density 6.44" HD smartphone (e.g., Nubia X6) operating under fast-charging conditions with LCD backlight noise. IC Role / Device Role / Timing Role: Primary touchscreen controller managing 48×12 electrode matrix, performing real-time correlated scanning and adaptive noise cancellation. Use Value: Maintains 10-finger tracking accuracy and zero false touches despite 40 Vpp charger interference and display EMI. | Use Scenario: 7.0" Huawei X1 tablet requiring glove operation, hover preview, and water resistance in consumer environments. IC Role / Device Role / Timing Role: Dual-mode capacitive controller executing dynamic self/mutual capacitance switching per frame for simultaneous glove + hover + water tolerance. Use Value: Enables seamless transition between bare-finger, thin-glove, and thick-glove input with <1 mm linearity error. |
| Wearable Touch System | Industrial HMI Panel |
Use Scenario: Samsung Gear S wristwatch with curved 1.6" AMOLED display and constrained thermal envelope. IC Role / Device Role / Timing Role: Ultra-low-power touchscreen controller using simultaneous Rx scanning and optimized firmware to minimize active time. Use Value: Achieves 120 Hz refresh at <15 mW average power while sustaining hover detection up to 10 mm above screen. | Use Scenario: Factory-floor HMI panel exposed to moisture, conductive dust, and 50/60 Hz ambient noise. IC Role / Device Role / Timing Role: Ruggedized controller leveraging DualSense architecture and IP67-certified firmware stack for continuous operation. Use Value: Guarantees touch registration under wet-finger conditions and prevents mis-triggering from ESD or power-line harmonics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar touchscreen controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Goodix GT9110 | 48 RX / 12 TX, but no verified 40 Vpp charger immunity; relies on software-based noise filtering | Limited to mid-tier smartphones without aggressive fast-charging requirements | Select when cost sensitivity outweighs extreme noise immunity needs |
| Atmel maXTouch MXT224E | Supports only mutual-capacitance mode; lacks self-capacitance for hover/glove/water | Suitable for dry, indoor consumer devices without environmental robustness demands | Choose only if DualSense functionality is not required and SNR >90 dB suffices |
Compared with GT9110 and MXT224E, TMA525-48BUI25ZZT uniquely delivers certified 40 Vpp charger immunity, IP67 water tolerance via DualSense, and hardware-accelerated palm rejection-making it the sole option for premium ruggedized mobile interfaces demanding simultaneous noise resilience, stylus precision, and environmental adaptability.
Availability
TMA525-48BUI25ZZT is available at Aetrix Electronics and suitable for premium smartphones, industrial HMIs, wearable touch systems, and ruggedized tablets requiring stable component supply and long-term lifecycle support.
Supply support for TMA525-48BUI25ZZT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Cypress Semiconductor (now part of Infineon Technologies) is a leader in programmable system-on-chip solutions, specializing in high-performance mixed-signal ICs for human interface, connectivity, and embedded control.
The TrueTouch® product line was engineered specifically for noise-immune, multi-mode capacitive touch control in mass-market mobile and industrial devices-prioritizing SNR, environmental robustness, and rapid design integration over generic controller functionality.
FAQ
What is the maximum panel size supported by TMA525-48BUI25ZZT?
The TMA525-48BUI25ZZT supports up to 6.44" diagonal displays at 3.2-mm electrode pitch (smartphones) and 8.3" at 5-mm pitch (tablets), validated with in-cell and on-cell LCD stackups. Its 48 RX channels enable high-resolution sensing without interpolation, maintaining 1-mm linearity across full active area.
Does TMA525-48BUI25ZZT require external components for charger noise suppression?
No external components are required for charger noise suppression. Charger Armor™ is fully integrated and adaptive-detecting noise frequency and amplitude in real time, then activating proprietary hardware filters and multi-phase TX compensation without host intervention or additional passives.
How does DualSense™ enable both hover and waterproof operation simultaneously?
DualSense™ uses time-multiplexed self-capacitance frames for hover (measuring finger proximity) and mutual-capacitance frames for touch localization. Its patented architecture shares sensor electrodes and signal paths, allowing concurrent water tolerance (via self-capacitance baseline stability) and 10-mm hover detection-all within one IC and one firmware stack.
Is TMA525-48BUI25ZZT compatible with standard I²C host processors?
Yes-it implements standard SMBus-compatible I²C (up to 400 kHz) with configurable slave address and interrupt-driven data reporting. Host drivers are provided by Cypress for Android, Linux, and RTOS platforms, including register-level access for custom calibration and noise profile tuning.
TMA525-48BUI25ZZT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- -
- Touchscreen:
- -
- Resolution (Bits):
- -
- Interface:
- -
- Voltage Reference:
- -
- Voltage - Supply:
- -
- Current - Supply:
- -
- Operating Temperature:
- -
- Mounting Type:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- -
TMA525-48BUI25ZZT FAQ
1.How can I place an order for TMA525-48BUI25ZZT through Aetrix?
Please submit a Request for Quotation (RFQ) for TMA525-48BUI25ZZT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TMA525-48BUI25ZZT reliable?
The price and inventory of TMA525-48BUI25ZZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMA525-48BUI25ZZT is usually 5 days.
3.What payment methods are accepted for TMA525-48BUI25ZZT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMA525-48BUI25ZZT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMA525-48BUI25ZZT?
TMA525-48BUI25ZZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMA525-48BUI25ZZT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TMA525-48BUI25ZZT?
For technical support, including TMA525-48BUI25ZZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMA525-48BUI25ZZT requirements.
6.How does Aetrix verify that TMA525-48BUI25ZZT is sourced from the original manufacturer or authorized distributors?
All TMA525-48BUI25ZZT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TMA525-48BUI25ZZT meets industry standards.
7.What is the process for return or replacement of TMA525-48BUI25ZZT?
All TMA525-48BUI25ZZT units undergo pre-shipment inspection (PSI). If there is an issue with TMA525-48BUI25ZZT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TMA525-48BUI25ZZT part is unused and in its original packaging.
Return procedure for TMA525-48BUI25ZZT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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