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STMicroelectronics TDA7563APDTR
- Part No.:
- TDA7563APDTR
- Manufacturer:
- STMicroelectronics
- Category:
- Audio Amplifiers
- Package:
- PowerSO-36 Exposed Top Pad
- Datasheet:
-
TDA7563APDTR.pdf
- Description:
- IC AMP AB QUAD 75W POWERSO-36
- Quantity:
- Payment:
- Shipping:
Inventory:3,034
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Product details
Overview
TDA7563APDTR from STMicroelectronics is a quad-channel Class SB (high-efficiency) car audio power amplifier in PowerSO36 (slug-up) package, delivering up to 4 × 50 W into 4 Ω at 14.4 V with 10% THD. It integrates DMOS output stage, full I²C diagnostics (DC/AC load detection), independent front/rear soft mute/play, and selectable 26 dB / 12 dB gain for low-noise line output - deployed in OEM automotive head units requiring thermal efficiency and speaker fault visibility.
For engineers reviewing the TDA7563APDTR datasheet, TDA7563APDTR pinout, TDA7563APDTR application, or TDA7563APDTR equivalent, key selection criteria include its 4×72 W max power into 2 Ω, linear thermal shutdown with multiple warning levels, clipping detector with 2%/10% threshold select, and I²C-driven diagnostic reporting of open/shorted speaker conditions per channel.
Technical Context
The TDA7563APDTR implements a quad-bridge topology using Multipower BCD technology and DMOS MOSFET output transistors, enabling Class SB operation with up to 50% lower dissipation versus conventional Class AB under average listening conditions. Its internal structure supports simultaneous high-efficiency mode enable/disable and real-time DC offset detection on all four channels.
I²C interface provides full digital control over standby/mute states, gain selection, and diagnostic readback - including turn-on diagnostics (subsonic pulse-based short/open detection) and permanent diagnostics (continuous monitoring during play/mute). Each channel features independent short-circuit protection and configurable clipping detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Power | 4 × 50 W max into 4 Ω @ 14.4 V, 1 kHz, 10% THD - enables loud, clean audio in compact automotive enclosures without forced cooling. |
| Max Load Power | 4 × 72 W into 2 Ω - supports high-current dynamic loads like dual-voice-coil subwoofers with stable rail regulation. |
| THD+N | 0.01% typ. @ 1.5 W, HI-EFF mode - ensures ultra-low distortion for critical midrange reproduction in premium audio systems. |
| I²C Diagnostics | Real-time DC/AC load status per channel (open, short-to-GND, short-to-VS, shorted speaker) - eliminates manual speaker wiring verification and enables automated fault logging. |
| Thermal Protection | Linear thermal foldback with multiple warning thresholds - prevents catastrophic failure while maintaining partial audio output during sustained high-temp operation. |
| Clipping Detection | Selectable 2% or 10% THD threshold per channel via I²C - allows precise headroom management for DSP integration or driver protection logic. |
| Standby Current | 1 µA typ. - enables always-on infotainment systems with minimal battery drain during vehicle sleep mode. |
Pinout & Package
Package: PowerSO36 (slug-up), thermally enhanced exposed die attach pad for direct heatsink mounting; Rth j-case = 1 °C/W max.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input (VS) | Primary 8–18 V DC rail connection; supports peak 50 V for 50 ms - accommodates automotive load-dump transients. |
| OUT1P–OUT4P | Positive bridge outputs | Four high-side DMOS outputs driving speaker + terminals; each rated for 6 A repetitive peak current. |
| OUT1N–OUT4N | Negative bridge outputs | Four low-side DMOS outputs driving speaker – terminals; fully complementary to OUTxP for true bridge-tied load (BTL) operation. |
| SCL/SDA | I²C bus interface | Standard 400 kHz I²C interface for configuration, mute control, and diagnostic readback - no external level shifters required. |
| STBY/MUTE | Combined standby/mute control | Dual-function pin: <1.5 V = standby (µA quiescent), 3.5–5 V = mute (mV offset preserved), >7 V = active - simplifies microcontroller GPIO usage. |
| CLIP | Clipping indicator output | Open-drain output asserting low when selected THD threshold exceeded - directly interfaces with MCU interrupt or LED driver. |
| REF | Analog reference voltage | Internal 2.5 V reference for diagnostics and offset measurement - improves accuracy of DC load detection across temperature. |
Key Features
| Feature | Design Value |
|---|---|
| Class SB high-efficiency mode | Reduces average power dissipation by up to 50% vs. Class AB - cuts heatsink size/cost and enables higher channel count in same PCB area. |
| Per-channel I²C diagnostics | Reports open, short-to-GND, short-to-VS, and shorted-speaker faults individually - enables precise speaker-level error reporting in telematics dashboards. |
| Independent front/rear soft mute/play | Gradual volume ramp (configurable timing) per channel pair - eliminates pop/click artifacts during source switching or fade effects. |
| Selectable 26 dB / 12 dB gain | 12 dB mode optimizes SNR for line-out applications (e.g., feeding external DSP); 26 dB mode maximizes sensitivity for direct speaker drive. |
| Linear thermal shutdown | Progressive output power reduction before hard cutoff - maintains audible output during thermal stress instead of abrupt mute. |
Applications
| OEM Automotive Head Unit | Aftermarket Digital Signal Processor (DSP) Interface |
|---|---|
|
Use Scenario: Integrated 4-channel amplifier in factory-installed infotainment system with CAN-linked UI. IC Role / Device Role / Timing Role: Primary audio power stage driving front/rear speakers; I²C reports speaker faults to head unit MCU for dashboard alerting. Use Value: Eliminates need for external speaker protection relays and reduces BOM count by integrating diagnostics, mute, and thermal management. |
Use Scenario: Front-end power amplifier paired with standalone DSP for custom car audio tuning. IC Role / Device Role / Timing Role: High-fidelity output stage receiving processed digital audio via analog line-in; 12 dB gain mode preserves DSP dynamic range. Use Value: Low 11 µV output noise (12 dB mode) and 60 dB crosstalk ensure DSP's precision EQ and time-alignment remain uncorrupted. |
| Commercial Vehicle Audio System | Marine Audio Amplifier Module |
|
Use Scenario: Ruggedized audio system in buses or trucks with extended temperature and vibration requirements. IC Role / Device Role / Timing Role: Quad-channel BTL amplifier operating from wide-input 8–18 V supply; thermal foldback sustains output during engine-off cabin heating. Use Value: 150 °C max junction temperature and -55 °C min storage rating meet EN 50155 rail electronics environmental specs. |
Use Scenario: Compact marine stereo amplifier mounted near wet/damp locations with salt exposure risk. IC Role / Device Role / Timing Role: Fault-tolerant power stage detecting open/shorted speakers caused by corrosion or water ingress via I²C diagnostics. Use Value: Turn-on diagnostic verifies speaker integrity before first playback - prevents amplifier damage from intermittent shorts in humid environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel automotive amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDA7561ATR | Lower max output (4 × 35 W @ 4 Ω), no I²C diagnostics, fixed 26 dB gain only | Lacks digital fault reporting and gain flexibility - suitable only for cost-sensitive non-diagnostic systems | Choose only if diagnostics and soft-mute are unnecessary and thermal budget allows higher dissipation. |
| MAX9768AUB+T | Class D, 4 × 25 W @ 4 Ω, I²C diagnostics, but no 2 Ω support or linear thermal foldback | Higher efficiency but limited peak power and less robust thermal response - better for low-power compact designs | Prefer for battery-powered portable audio where efficiency > raw power; avoid for high-SPL OEM applications. |
Compared with TDA7563APDTR, TDA7561ATR sacrifices diagnostics and thermal intelligence for cost, while MAX9768AUB+T trades peak power and analog-friendly thermal behavior for Class D efficiency - making TDA7563APDTR optimal for thermally constrained, fault-aware OEM platforms demanding 50 W/channel.
Availability
TDA7563APDTR is available at Aetrix Electronics and suitable for automotive infotainment systems, commercial vehicle audio subsystems, marine entertainment modules, and aftermarket DSP-integrated amplifiers requiring stable component supply and long-term lifecycle support.
Supply support for TDA7563APDTR 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing analog, power, microcontroller, and sensor solutions for automotive, industrial, and consumer markets.
The TDA7563APDTR belongs to ST's TDA75xx automotive audio amplifier product line, engineered specifically for high-reliability, thermally efficient, digitally controllable car radio and head unit applications with integrated diagnostics.
FAQ
What is the maximum safe supply voltage for continuous operation?
The TDA7563APDTR supports continuous operation up to 18 V DC (VOP). It tolerates transient peaks of 50 V for ≤50 ms per IEC 61000-4-5, enabling compatibility with automotive load-dump events without external clamping circuitry. Exceeding 18 V continuously risks exceeding absolute maximum junction temperature limits.
How does the I²C diagnostic system detect an open speaker?
The I²C diagnostic system applies a subsonic current pulse during turn-on or periodic permanent monitoring and measures resulting voltage at each output. An open speaker yields impedance >130 Ω (power amp mode) or >400 Ω (line driver mode), triggering a dedicated fault flag readable via I²C register 0x0A–0x0D - no external components required.
Can the clipping detector be used to trigger automatic gain control (AGC)?
Yes. The CLIP pin asserts low when output THD exceeds the selected threshold (2% or 10%). This open-drain signal can directly drive an MCU interrupt or feed a hardware AGC circuit. Response time is <10 ms, enabling real-time gain reduction before audible distortion occurs.
Is the PowerSO36 (slug-up) package RoHS and REACH compliant?
Yes. The TDA7563APDTR in PowerSO36 (slug-up) packaging meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, with lead-free terminations and halogen-free molding compound - certified per ST's official compliance documentation (DocID14407 Rev 5, page 34).
TDA7563APDTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- PowerSO-36 Exposed Top Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Class AB
- Output Type:
- 4-Channel (Quad)
- Max Output Power x Channels @ Load:
- 75W x 4 @ 2Ohm
- Voltage - Supply:
- 8V ~ 18V
- Features:
- I2C, Mute, Short-Circuit and Thermal Protection, Standby
- Mounting Type:
- Surface Mount
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- PowerSO-36
TDA7563APDTR FAQ
1.How can I place an order for TDA7563APDTR through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA7563APDTR 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 TDA7563APDTR reliable?
The price and inventory of TDA7563APDTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA7563APDTR is usually 5 days.
3.What payment methods are accepted for TDA7563APDTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA7563APDTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA7563APDTR?
TDA7563APDTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA7563APDTR 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 TDA7563APDTR?
For technical support, including TDA7563APDTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA7563APDTR requirements.
6.How does Aetrix verify that TDA7563APDTR is sourced from the original manufacturer or authorized distributors?
All TDA7563APDTR 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 TDA7563APDTR meets industry standards.
7.What is the process for return or replacement of TDA7563APDTR?
All TDA7563APDTR units undergo pre-shipment inspection (PSI). If there is an issue with TDA7563APDTR, 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 TDA7563APDTR part is unused and in its original packaging.
Return procedure for TDA7563APDTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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