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STMicroelectronics TDA7563BPD
- Part No.:
- TDA7563BPD
- Manufacturer:
- STMicroelectronics
- Category:
- Audio Amplifiers
- Package:
- PowerSO-36 Exposed Top Pad
- Datasheet:
-
TDA7563BPD.pdf
- Description:
- IC AMP AB QUAD 75W POWERSO-36
- Quantity:
- Payment:
- Shipping:
Inventory:1,732
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Product details
Overview
TDA7563BPD from STMicroelectronics is a quad-channel Class SB (high-efficiency) bridge-tied-load (BTL) audio power amplifier in PowerSO36 package, designed for automotive head units. It delivers 4 × 50 W into 4 Ω at 14.4 V with 10% THD, features integrated I²C-controlled diagnostics (DC/AC load detection), independent front/rear soft mute, and selectable 30 dB / 16 dB gain for line-output compatibility - deployed in premium OEM car radios requiring thermal efficiency and speaker fault visibility.
For engineers reviewing the TDA7563BPD datasheet, TDA7563BPD pinout, TDA7563BPD application, or TDA7563BPD equivalent, key selection criteria include its 4×72 W max output into 2 Ω, linear thermal shutdown with multiple warning levels, clipping detector with 2%/10% threshold select, and full I²C bus diagnostics enabling real-time speaker status reporting without external circuitry.
Technical Context
The TDA7563BPD implements a DMOS-based MOSFET output stage using Multipower BCD technology, enabling low distortion (<0.03% THD at 1 W, STD mode) and high efficiency - dissipating up to 50% less power than conventional Class AB under average listening conditions. Its internal structure supports dual operating modes: standard (STD) and high-efficiency (HI-EFF), each with distinct distortion vs. power profiles and thermal foldback behavior.
It integrates four independent short-circuit protection circuits, DC offset detection, and an I²C-compatible digital diagnostics engine that reports per-channel fault states (short-to-GND/Vs, open/shorted speaker, line-driver faults). The clip detector pin provides analog-level clipping indication with programmable threshold via I²C register IB1, while standby/mute control is supported by dedicated pins and I²C commands.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Power | 4 × 50 W @ 14.4 V, 4 Ω, 10% THD - enables loud, clean audio in compact automotive enclosures without forced cooling. |
| Max Output | 4 × 72 W @ 13.7 V, 2 Ω, EIAJ - supports high-current subwoofer or low-impedance speaker configurations. |
| THD+N | 0.02% typ. @ 1.5 W, HI-EFF mode - preserves signal fidelity during quiet passages and reduces audible artifacts. |
| I²C Diagnostics | Real-time DC/AC load detection per channel - eliminates need for external sense resistors or microcontroller polling overhead. |
| Thermal Protection | Linear thermal foldback with multiple warning levels - prevents catastrophic failure while maintaining partial audio output during overheating. |
| Clipping Detection | Selectable 2% or 10% THD threshold via I²C - allows precise headroom monitoring for dynamic range optimization or limiter triggering. |
| Supply Range | 8–18 V operating voltage - compatible with automotive battery systems including cold-crank (8 V) and load-dump (18 V) transients. |
Pinout & Package
Package: PowerSO36 (slug-up, thermally enhanced exposed die pad), RoHS-compliant, designed for direct heatsink mounting with low Rth j-case = 1 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Main power supply input | Accepts 8–18 V DC; connects to vehicle battery via low-ESR bulk capacitor for transient immunity. |
| GND | Power ground reference | Low-impedance return path shared across all channels; requires star grounding to minimize crosstalk. |
| OUT1P–OUT4P / OUT1N–OUT4N | Differential BTL output terminals | Four fully independent bridge outputs; each drives one speaker without external coupling capacitors. |
| SD | Standby/mute control input | Logic-level pin: 0–1.5 V = standby, 3.5–5 V = mute, 7–VS = active - supports hardware or I²C-coordinated power sequencing. |
| CLIP | Analog clipping indicator output | Open-drain pin asserting low when THD exceeds selected threshold (2% or 10%) - directly interfaces with MCU ADC or comparator. |
| SCL / SDA | I²C clock/data interface | Standard-mode (≤400 kHz) bus interface for configuration, diagnostics readback, and real-time fault logging. |
| VS | Speaker output common rail | Internally connected to half-bridge midpoints; used for DC offset and AC load detection during diagnostics. |
Key Features
| Feature | Design Value |
|---|---|
| Class SB high-efficiency architecture | Reduces average power dissipation by up to 50% vs. Class AB - lowers heatsink mass and improves reliability in sealed dash environments. |
| Per-channel I²C diagnostics | Reports short-to-GND/Vs, open/shorted speaker, and line-driver faults individually - enables automated speaker health logging in infotainment firmware. |
| Selectable 30 dB / 16 dB gain | Supports both high-power speaker drive and low-noise line-out routing to external amplifiers - simplifies system-level signal chain design. |
| Independent front/rear soft play/mute | Enables staggered channel activation to eliminate turn-on thumps - critical for premium audio user experience in OEM systems. |
| Linear thermal shutdown | Gradual output reduction before hard shutdown - maintains partial audio output during thermal stress instead of abrupt muting. |
Applications
| OEM Automotive Head Unit | Premium Infotainment System |
|---|---|
|
Use Scenario: Integrated 4-channel amplifier in factory-installed car radio with digital signal processing and Bluetooth streaming. IC Role / Device Role / Timing Role: Final-stage BTL audio driver delivering full-range output to door speakers and tweeters; synchronized via I²C to DSP mute timing. Use Value: Built-in diagnostics eliminate need for external speaker protection ICs, reducing BOM count and PCB area while enabling real-time speaker disconnect alerts. |
Use Scenario: High-fidelity audio subsystem in luxury vehicle infotainment platform supporting Dolby Atmos decoding and multi-zone playback. IC Role / Device Role / Timing Role: Front left/right and rear left/right channel amplifier with independent soft-mute control for seamless zone transitions. Use Value: 0.02% THD+N in HI-EFF mode ensures transparent reproduction of spatial audio cues; 4×72 W capability drives high-sensitivity component speakers without distortion. |
| Aftermarket Navigation Radio | Commercial Vehicle Audio Hub |
|
Use Scenario: Compact double-DIN navigation radio with integrated amplifier for OEM replacement market. IC Role / Device Role / Timing Role: Primary audio power stage with I²C-configurable gain and diagnostics - interfaced to ARM-based application processor running Linux audio stack. Use Value: PowerSO36 package enables conduction-cooled mounting on metal chassis, eliminating fans; 8–18 V operation tolerates wide automotive voltage range including stop-start cycles. |
Use Scenario: Audio distribution unit in buses or coaches powering multiple cabin zones with independent volume and mute control. IC Role / Device Role / Timing Role: Zone amplifier providing 4×50 W output per zone; I²C diagnostics feed fault data to central vehicle telematics module. Use Value: Four independent short-circuit protections prevent single-speaker fault from disabling entire zone; thermal foldback maintains partial operation during prolonged high-temp operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel automotive audio amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDA7561 | Lacks I²C diagnostics and clip detection; lower max output (4×45 W @ 4 Ω); no HI-EFF mode. | Suitable only for cost-sensitive entry-level head units where speaker health monitoring is not required. | Choose when diagnostic capability is unnecessary and thermal budget allows higher dissipation. |
| TDA7564 | Higher integration: includes built-in DSP, 7.1-channel support, and enhanced diagnostics (e.g., temperature mapping); larger PowerSO36 footprint. | Targets next-gen platforms requiring software-defined audio processing and advanced fault analytics. | Choose when system-level audio processing and expanded channel count justify added complexity and cost. |
Compared with TDA7561, the TDA7563BPD adds critical diagnostics and efficiency gains without increasing package size; versus TDA7564, it offers a leaner, lower-cost solution where embedded DSP is handled externally - making it optimal for mid-tier automotive audio with robustness and serviceability requirements.
Availability
TDA7563BPD is available at Aetrix Electronics and suitable for OEM automotive head units, premium infotainment systems, and aftermarket navigation radios requiring stable component supply, long lifecycle support, and traceable sourcing for production ramp.
Supply support for TDA7563BPD 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, specializing in automotive, industrial, and power management ICs with broad manufacturing scale and AEC-Q100 qualification expertise.
The TDA7563BPD belongs to ST's TDA75xx automotive audio amplifier family, engineered specifically for high-reliability, thermally constrained car radio applications demanding integrated diagnostics, high efficiency, and I²C configurability.
FAQ
What is the thermal resistance junction-to-case for TDA7563BPD?
The TDA7563BPD in PowerSO36 package has a maximum junction-to-case thermal resistance (Rth j-case) of 1 °C/W, measured with the exposed slug properly soldered to a heatsink. This value enables efficient conduction cooling in space-constrained automotive modules and supports sustained 4×50 W output with appropriate heatsinking.
Does TDA7563BPD support both speaker and line-driver configurations?
Yes - the TDA7563BPD supports two gain modes: 30 dB for direct speaker drive and 16 dB optimized for low-noise line-output routing. In 16 dB mode, its diagnostics automatically adapt thresholds for line-driver loads (e.g., open-load detection shifts from 130 Ω to 400 Ω), ensuring accurate fault reporting in either configuration.
How does the turn-on diagnostic function without generating audible noise?
The turn-on diagnostic applies a subsonic current pulse (below 20 Hz) while the amplifier remains in standby (outputs in high-impedance state). Voltage responses are sampled after 100 ms, well below human hearing range, and no audio signal is present at the outputs - eliminating thumps or pops during power-up sequences.
Can the clipping detector threshold be changed dynamically during operation?
Yes - the CLIP pin's detection threshold (2% or 10% THD) is controlled by bit D0 in I²C register IB1 and can be updated in real time via the I²C bus without interrupting audio playback. This allows adaptive limiting based on content type or user-selected sound profiles.
TDA7563BPD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- PowerSO-36 Exposed Top Pad
- Packaging:
- Tube
- Product Status:
- Active
- 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
TDA7563BPD FAQ
1.How can I place an order for TDA7563BPD through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA7563BPD 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 TDA7563BPD reliable?
The price and inventory of TDA7563BPD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA7563BPD is usually 5 days.
3.What payment methods are accepted for TDA7563BPD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA7563BPD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA7563BPD?
TDA7563BPD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA7563BPD 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 TDA7563BPD?
For technical support, including TDA7563BPD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA7563BPD requirements.
6.How does Aetrix verify that TDA7563BPD is sourced from the original manufacturer or authorized distributors?
All TDA7563BPD 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 TDA7563BPD meets industry standards.
7.What is the process for return or replacement of TDA7563BPD?
All TDA7563BPD units undergo pre-shipment inspection (PSI). If there is an issue with TDA7563BPD, 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 TDA7563BPD part is unused and in its original packaging.
Return procedure for TDA7563BPD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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