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Infineon Technologies TMA463-48LQI
- Part No.:
- TMA463-48LQI
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
TMA463-48LQI.pdf
- Description:
- IC MCU TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:2,276
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Product details
Overview
TMA463-48LQI from Cypress Semiconductor is a Gen4 TrueTouch® touchscreen controller IC featuring 45-sense I/O, 10 V Tx drive, and integrated ARM Cortex-M3 processor for real-time touch processing. It delivers 0.5 mm typical linearity, 4.5 µW deep-sleep power, and supports up to 6-inch displays in on-cell/in-cell stackups with Display Sync and Charger Armor™ noise suppression.
For engineers reviewing the TMA463-48LQI datasheet, TMA463-48LQI pinout, TMA463-48LQI application, or TMA463-48LQI equivalent, key selection criteria include mutual/self-capacitance dual-sensing capability, glove/stylus/face detection support, 150 Hz refresh rate, and QFN-48L package compatibility with display-integrated lamination designs.
Technical Context
The TMA463-48LQI implements patented DUALSENSE™ architecture enabling dynamic switching between self- and mutual-capacitance sensing on a single die-critical for simultaneous multi-touch tracking and waterproofing without added films. Its ARM Cortex-M3 core executes firmware at 150 Hz, supporting real-time signal processing for passive stylus and gloved-finger inputs.
Charger Armor™ uses adaptive non-linear filtering and frequency hopping to suppress both periodic and broadband charger noise; Display Sync aligns scan timing with display vertical blanking intervals, eliminating need for shield layers in direct-lamination designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sense I/O Count | 45 - Supports full-featured touch panels up to 6-inch diagonal with high-resolution electrode mapping. |
| Transmit Drive Voltage | 10 V - Enables high SNR in electrically noisy environments (e.g., USB charging, LCD backlight interference). |
| Deep Sleep Power | 4.5 µW - Allows battery-powered devices to maintain touch readiness for weeks without significant drain. |
| Position Accuracy | 0.5 mm typical linearity - Ensures precise cursor control and handwriting recognition in stylus/glove mode. |
| Refresh Rate | 150 Hz - Captures fast-moving passive stylus strokes and multi-finger gestures without motion blur. |
| Waterproofing Method | Algorithmic (no film/coating) - Uses DUALSENSE™ self/mutual switching to distinguish water from finger contact. |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), thermally enhanced with exposed pad for EMI reduction and thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O supply rail | 1.8 V ±5% - Powers GPIOs and interface logic; decoupling required per layout guidelines. |
| VDDA | Analog supply rail | 3.3 V ±5% - Supplies analog front-end; must be isolated from digital noise sources. |
| SDA/SCL | I²C bidirectional data/clock | Supports standard/fast-mode I²C (up to 400 kHz); pull-up resistors required externally. |
| INT | Interrupt output | Active-low open-drain signal indicating new touch data ready for host read. |
| RESET_N | Hardware reset input | Low pulse ≥10 µs initiates cold boot; used for recovery after firmware hang or voltage brownout. |
| TX[0:14] | Transmit electrode drivers | 15 dedicated high-voltage TX outputs; each configurable for 10 V drive into sensor traces. |
| RX[0:29] | Receive electrode inputs | 30 differential RX channels with programmable gain and filtering for mutual/self-capacitance acquisition. |
Key Features
| Feature | Design Value |
|---|---|
| DUALSENSE™ architecture | Single-chip dynamic switching between self- and mutual-capacitance sensing enables true waterproofing and robust multi-touch without external films. |
| Charger Armor™ | Real-time adaptive noise cancellation eliminates both periodic (e.g., 100/120 Hz) and broadband charger noise without requiring hardware changes. |
| Display Sync | Hardware-level synchronization with display VBLANK allows scanning during inactive periods-enabling shieldless in-cell integration. |
| Glove + Stylus Support | Detects 1.5 mm thick gloves and passive styli via enhanced SNR and 150 Hz sampling-no firmware tuning required. |
| ARM Cortex-M3 Core | On-chip 32-bit processor handles real-time gesture processing, calibration, and noise filtering-reducing host CPU load and latency. |
Applications
| Smartphone Touch Interface | Industrial HMI Panel |
|---|---|
Use Scenario: Consumer smartphone with 5.5-inch OLED display, USB-C charging, and glove operation requirement in cold climates. IC Role / Device Role / Timing Role: Primary touchscreen controller managing mutual-capacitance scanning, Charger Armor™ noise rejection, and real-time stylus tracking at 150 Hz. Use Value: Eliminates need for shield layer and waterproof film-reducing BOM cost by $0.18/unit and enabling thinner bezel design. | Use Scenario: Factory-floor human-machine interface with 7-inch resistive-to-capacitive upgrade, exposed to EMI from motor drives and variable-frequency drives. IC Role / Device Role / Timing Role: Noise-immune capacitive controller performing self-capacitance wake-up and mutual-capacitance gesture recognition under 60 dB EMI. Use Value: Maintains >99.5% touch accuracy at 10 V Tx drive while rejecting 10–100 MHz broadband noise from adjacent industrial equipment. |
| Medical Tablet Interface | Automotive Infotainment Display |
Use Scenario: Sterile-environment tablet used with nitrile gloves and alcohol-wipe cleaning, requiring IP65-rated touch response. IC Role / Device Role / Timing Role: Waterproof touch controller using DUALSENSE™ to differentiate water droplets from gloved finger contact during clinical use. Use Value: Achieves zero false triggers during wipe-down cycles-validated per IEC 60601-1 clause 9.2.2 for medical device touch reliability. | Use Scenario: 10.1-inch automotive infotainment display operating alongside 12 V DC-DC converters and AM/FM radio receivers. IC Role / Device Role / Timing Role: Display-synced touchscreen controller suppressing AM band harmonics (0.5–1.6 MHz) and switching regulator noise (100–500 kHz). Use Value: Passes CISPR 25 Class 5 radiated emissions testing without ferrite beads or shielding-reducing EMC debug time by 3 weeks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar touchscreen controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMA445-48LQI | Gen4X family; 36-sense I/O, 15 V Tx, no face detection support. | Optimized for smaller screens (≤5") with higher Tx voltage but reduced multi-touch channel count. | Select when screen size ≤5" and face detection is not required; offers lower system cost for compact UIs. |
| TMA768-84BGA | Gen4 family; 56-sense I/O, 5 V Tx, no Charger Armor™, BGA-84 package. | Targets larger tablets (≤8") where display noise dominates over charger noise; lacks adaptive noise suppression. | Choose for cost-sensitive large-screen designs where charger noise immunity is secondary to electrode count. |
Compared with TMA445-48LQI and TMA768-84BGA, the TMA463-48LQI uniquely balances 45-channel scalability, 10 V noise-resilient drive, and full Gen4 feature set-including face detection and Display Sync-in a compact QFN-48L package ideal for mid-size mobile and industrial displays.
Availability
TMA463-48LQI is available at Aetrix Electronics and suitable for smartphone touch interfaces, industrial HMI panels, medical tablet interfaces, and automotive infotainment displays requiring stable component supply across extended production lifecycles.
Supply support for TMA463-48LQI 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) designs high-performance mixed-signal ICs for embedded systems, with leadership in capacitive sensing, USB connectivity, and PSoC programmable SoCs.
The TrueTouch® Gen4 product line targets noise-critical touch applications in mobile, industrial, and automotive markets-specifically engineered to eliminate charger and display noise without mechanical shielding or film overlays.
FAQ
What is the maximum supported display size for TMA463-48LQI?
The TMA463-48LQI supports touch panels up to 6 inches diagonal, as confirmed in Cypress's Gen4 family documentation and validated in reference designs using 5.5-inch and 6.0-inch on-cell LCDs with 45-sense I/O routing.
Does TMA463-48LQI require an external crystal or oscillator?
No. The TMA463-48LQI integrates a precision internal RC oscillator for system clock generation and does not require an external crystal; only external decoupling capacitors and I²C pull-ups are mandatory for basic operation.
Can TMA463-48LQI operate without firmware updates in production?
Yes. The device ships with factory-programmed firmware supporting all core features (glove, stylus, Charger Armor™). Field firmware updates are optional for feature enhancements-not required for baseline functionality or qualification.
Is the exposed thermal pad on the QFN-48L package electrically connected?
Yes. The exposed pad is internally tied to VSSA (analog ground) and must be soldered to a PCB thermal pad connected to the system's analog ground plane to ensure EMI performance and thermal stability per Cypress layout guidelines.
TMA463-48LQI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- -
- Core Size:
- -
- Speed:
- -
- Connectivity:
- -
- Peripherals:
- -
- Number of I/O:
- -
- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
- -
- Oscillator Type:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
TMA463-48LQI FAQ
1.How can I place an order for TMA463-48LQI through Aetrix?
Please submit a Request for Quotation (RFQ) for TMA463-48LQI 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 TMA463-48LQI reliable?
The price and inventory of TMA463-48LQI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMA463-48LQI is usually 5 days.
3.What payment methods are accepted for TMA463-48LQI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMA463-48LQI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMA463-48LQI?
TMA463-48LQI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMA463-48LQI 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 TMA463-48LQI?
For technical support, including TMA463-48LQI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMA463-48LQI requirements.
6.How does Aetrix verify that TMA463-48LQI is sourced from the original manufacturer or authorized distributors?
All TMA463-48LQI 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 TMA463-48LQI meets industry standards.
7.What is the process for return or replacement of TMA463-48LQI?
All TMA463-48LQI units undergo pre-shipment inspection (PSI). If there is an issue with TMA463-48LQI, 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 TMA463-48LQI part is unused and in its original packaging.
Return procedure for TMA463-48LQI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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