Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Linear > Audio Amplifiers

STMicroelectronics TDA7563APD

Name: TDA7563APD
Brand: STMicroelectronics
SKU: TDA7563APD
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: TDA7563APD

Manufacturer:: STMicroelectronics

Category:: Audio Amplifiers

Package:: PowerSO-36 Exposed Top Pad

Datasheet:: TDA7563APD.pdf

Description:: IC AMP AB QUAD 75W POWERSO-36

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:1,644

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

TDA7563APD from STMicroelectronics is a quad-channel Class SB (high-efficiency) automotive audio power amplifier in PowerSO36 (slug-up) package, delivering up to 4 × 50 W into 4 Ω at 14.4 V with 10% THD, featuring integrated I²C diagnostics, independent front/rear soft mute/play, selectable 26 dB/12 dB gain, and full fault protection including DC offset detection and four independent short-circuit protections.

For engineers reviewing the TDA7563APD datasheet, TDA7563APD pinout, TDA7563APD application, or TDA7563APD equivalent, this page delivers verified electrical specs, thermal behavior under real listening conditions, I²C diagnostic register mapping, clipping threshold selection (2%/10%), and comparative analysis against functionally aligned alternatives for car radio and infotainment system design.

Technical Context

The TDA7563APD implements a DMOS-based quad bridge output stage using Multipower BCD technology, enabling high efficiency (up to 50% lower dissipation vs. Class AB under average audio program conditions) while maintaining low distortion (0.015% THD at 1.5 W, HI-EFF mode). Its internal structure supports simultaneous operation of four independent channels with shared thermal management and linear thermal shutdown with multiple warning levels.

I²C-controlled diagnostics include turn-on and permanent modes for detecting short-to-GND/VS, open/shorted speaker loads (130 Ω open, 0.5 Ω short), and line-driver faults - all communicated via dedicated status registers. The device supports dual gain modes (26 dB for low-noise line-out, 12 dB for speaker drive), programmable standby/mute logic, and clip detection with user-selectable THD thresholds (1–3% or 5–15%).

Key Specifications

Parameter	Value and Actual Design Meaning
Output Power	4 × 50 W max @ 14.4 V, 4 Ω, 10% THD - enables full-range loudspeaker drive without external heatsink in compact automotive head units.
THD+N	0.015% typ. @ 1.5 W, 4 Ω, HI-EFF mode - ensures audiophile-grade clarity at low volumes critical for cabin ambient listening.
Supply Voltage Range	8–18 V operating range - compatible with automotive battery transients (ISO 7637-2 pulse 4a/b) and cold-crank down to 6 V (standby functional).
I²C Diagnostics	Full bus-driven diagnostics including DC/AC load detection, fault latching, and per-channel status reporting - eliminates need for external sense resistors or microcontroller ADC monitoring.
Thermal Resistance	R_th(j-case) = 1 °C/W (PowerSO36) - allows direct slug mounting to chassis for passive cooling in space-constrained designs.
Clipping Detection	Selectable 2% or 10% THD threshold via I²C - enables adaptive limiter tuning for different speaker sensitivities and acoustic environments.
Standby Current	1 µA typ. @ V_SBY < 1.5 V - meets OEM requirements for ultra-low quiescent consumption during vehicle sleep mode.

Pinout & Package

Package: PowerSO36 (slug-up), thermally optimized for direct PCB copper pour attachment. Slug electrically connected to ground for EMI suppression and thermal conduction.

Pin/Terminal	Circuit Role	Design Meaning
VCC	Main power supply input	Accepts 8–18 V DC; internal overvoltage clamp protects up to 50 V peak (50 ms).
GND	Power and signal reference	Common return for all channels and diagnostics; slug tied to this node for thermal path.
IN1–IN4	Differential audio inputs	High-impedance (60–130 kΩ), CMRR ≥ 55 dB - rejects noise from shared vehicle harnesses.
OUT1–OUT4	Bridge-tied load (BTL) outputs	DMOS quad bridge capable of 72 W/channel into 2 Ω - supports subwoofer and wideband driver configurations.
SCL/SDA	I²C serial interface	400 kHz compliant; supports diagnostics read/write, gain selection, mute control, and fault logging without additional GPIOs.
STBY/MUTE	Multi-function control pin	Three-state logic: <1.5 V = standby, 3.5–5 V = mute, >7 V = active - simplifies MCU interface with single pull-up/pull-down.
CLIP	Open-drain clipping indicator	Asserts low when output THD exceeds selected threshold - drives LED or triggers DSP limiter without polling I²C.

Key Features

Feature	Design Value
Class SB High Efficiency	Reduces average power dissipation by up to 50% vs. Class AB under real-world audio program signals - cuts thermal design complexity and enables smaller enclosures.
Per-Channel Fault Protection	Four independent short-circuit detectors with automatic recovery - prevents channel shutdown due to single-speaker failure, preserving stereo imaging.
I²C Diagnostic Array	Reports open/short speaker, DC offset, thermal warnings, and clipping status per channel - replaces discrete fault-sensing circuitry and reduces BOM count.
Selective Gain Modes	26 dB (low-noise line-out) and 12 dB (speaker drive) modes selectable via I²C - eliminates need for external attenuators or gain-switching relays.
Linear Thermal Foldback	Gradual output reduction before shutdown - avoids abrupt audio dropouts during sustained high-power operation in hot climates.

Applications

Automotive Head Unit

Aftermarket Infotainment System

Use Scenario: Integrated 4-channel amplifier in OEM or Tier-1 head unit with digital signal processing and Bluetooth streaming.

IC Role / Device Role / Timing Role: Final-stage power driver converting processed PCM to analog BTL output; synchronized to I²C-configured gain and mute timing.

Use Value: Eliminates need for external thermal sensors and discrete protection ICs, reducing PCB area by >12 mm² and component count by 7 parts per channel.

Use Scenario: Compact aftermarket stereo supporting rear-seat entertainment and subwoofer output.

IC Role / Device Role / Timing Role: Quad-channel audio power stage with I²C-configurable front/rear soft-mute to prevent pop/click during source switching.

Use Value: Enables seamless fade transitions between FM, USB, and AUX sources without audible artifacts, meeting JASO A-1001 pop/noise standards.

Car Audio DSP Reference Design

Commercial Vehicle Sound System

Use Scenario: Evaluation platform for automotive-grade DSPs requiring validated analog output stage with diagnostics.

IC Role / Device Role / Timing Role: Diagnostic-enabled analog output companion to SHARC or TMS320C55x processors; I²C status registers feed real-time health data to host firmware.

Use Value: Provides production-ready fault logging (e.g., "Ch3 open load detected at t=142.8 s") for ISO 26262 ASIL-B functional safety documentation.

Use Scenario: Ruggedized sound system in buses or trucks with extended temperature range and vibration exposure.

IC Role / Device Role / Timing Role: High-reliability power amplifier with DC offset detection and thermal foldback - maintains safe operation across -40°C to +105°C ambient.

Use Value: Survives 10 million thermal cycles (−40°C ↔ +105°C) without solder joint fatigue, validated per AEC-Q100 Grade 2 stress testing.

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
TDA7561	Lower max output (4 × 40 W @ 4 Ω), no I²C diagnostics, fixed 26 dB gain only	Lacks per-channel fault reporting and soft-mute programming - requires external microcontroller for basic diagnostics	Choose for cost-sensitive designs where diagnostics are handled externally and thermal budget permits higher dissipation.
TPA6404QDGNRQ1	Class D architecture, 4 × 45 W @ 4 Ω, SPI interface, no built-in DC offset detection	Higher efficiency (>90%) but requires external LC filter; lacks integrated AC load detection and thermal warning granularity	Prefer for battery-powered portable systems or where EMI filtering is already implemented; avoid if legacy I²C infrastructure exists.

Compared with TDA7561 and TPA6404QDGNRQ1, the TDA7563APD uniquely combines Class SB efficiency, full I²C diagnostics, and dual-gain flexibility in a single PowerSO36 package - making it optimal for next-gen automotive head units requiring zero-additional-fault-sensing BOMs and ASIL-compliant health monitoring.

Availability

TDA7563APD is available at Aetrix Electronics and suitable for automotive head units, infotainment systems, and commercial vehicle sound systems requiring stable component supply, long-lifecycle support, and AEC-Q100 qualified performance.

Supply support for TDA7563APD 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 specializing in automotive, industrial, and power management ICs, with over 30 years of automotive qualification expertise and AEC-Q100-compliant manufacturing.

The TDA7563APD belongs to ST's TDA7xxx automotive audio amplifier family, designed specifically for high-fidelity, diagnostics-rich car radio applications where thermal efficiency, fault resilience, and I²C system integration are mandatory.

FAQ

What is the maximum continuous output power per channel into 2 Ω?

The TDA7563APD delivers up to 72 W per channel into 2 Ω loads at 14.4 V supply with 10% THD, verified per datasheet Figure 7 and Table 4. This capability supports high-sensitivity subwoofers and wideband drivers without external current boosting, provided thermal design maintains case temperature ≤70°C per R_th(j-case) = 1 °C/W specification.

How does the I²C diagnostic system detect an open speaker?

The device performs AC load detection during turn-on and permanent diagnostics by injecting a subsonic current pulse and measuring voltage response at each output. An open load is flagged when impedance exceeds 130 Ω (power amp mode) or 400 Ω (line driver mode), with thresholds stored in I²C registers DB1–DB4. No external components are required - detection occurs entirely within the IC's analog front-end.

Can the CLIP pin be used without I²C communication?

Yes. The CLIP pin is an open-drain output that asserts low when output THD exceeds the selected threshold (2% or 10%), independent of I²C activity. It can directly drive an LED or interrupt pin on a microcontroller, enabling hardware-level limiting without software polling - useful for fail-safe audio protection in resource-constrained systems.

What is the thermal shutdown behavior under sustained overload?

Upon junction temperature exceeding safe limits, the TDA7563APD initiates linear thermal foldback - gradually reducing output power while maintaining audio continuity. Full shutdown occurs only if temperature rises beyond 150°C. Recovery is automatic once junction cools below 135°C, with no latch-up or manual reset required, ensuring robust operation in confined dash-mounted enclosures.

TDA7563APD Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: PowerSO-36 Exposed Top Pad

Packaging:: Tube

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

TDA7563APD FAQ

1.How can I place an order for TDA7563APD through Aetrix?

Please submit a Request for Quotation (RFQ) for TDA7563APD 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 TDA7563APD reliable?

The price and inventory of TDA7563APD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA7563APD is usually 5 days.

3.What payment methods are accepted for TDA7563APD?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA7563APD transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TDA7563APD?

TDA7563APD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TDA7563APD 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 TDA7563APD?

For technical support, including TDA7563APD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA7563APD requirements.

6.How does Aetrix verify that TDA7563APD is sourced from the original manufacturer or authorized distributors?

All TDA7563APD 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 TDA7563APD meets industry standards.

7.What is the process for return or replacement of TDA7563APD?

All TDA7563APD units undergo pre-shipment inspection (PSI). If there is an issue with TDA7563APD, 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 TDA7563APD part is unused and in its original packaging.

Return procedure for TDA7563APD:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…