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

STMicroelectronics TDA7567PDTR

Name: TDA7567PDTR
Brand: STMicroelectronics
SKU: TDA7567PDTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TDA7567PDTR

Manufacturer:: STMicroelectronics

Category:: Audio Amplifiers

Package:: PowerSO-36 Exposed Top Pad

Datasheet:: TDA7567PDTR.pdf

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

Quantity:: RFQ Add To RFQ list

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Inventory:4,188

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Product details

Overview

TDA7567PDTR from STMicroelectronics is a 4-channel differential Class SB automotive audio power amplifier in PowerSO36 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 control, and selectable 16 dB / 26 dB gain. It serves as the main output stage in premium car radio head units requiring speaker-level drive with real-time fault reporting.

For engineers reviewing the TDA7567PDTR datasheet, TDA7567PDTR pinout, TDA7567PDTR application, or TDA7567PDTR equivalent, key selection criteria include its 4×72 W max capability into 2 Ω, built-in DC/AC load detection via I²C, thermal foldback behavior, clipping threshold configurability (2%/10%), and dual I²C address support for multi-amplifier systems.

Technical Context

The TDA7567PDTR implements a DMOS-based quad bridge output stage using Multipower BCD technology, enabling high-efficiency Class SB operation with up to 50% lower dissipation than conventional Class AB under average listening conditions. Its diagnostic architecture supports both turn-on and permanent modes, with subsonic current pulse injection for open/short load detection and real-time offset monitoring.

Control is implemented via dual-mode interface: full I²C bus (with two selectable addresses and digital diagnostics registers) or pin-strapped operation using STBY/MUTE and ADSEL/I²CDIS pins. The device integrates linear thermal shutdown with multiple warning thresholds and four independent short-circuit protections per channel.

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 high-SPL speaker drive without external heatsink oversizing
THD+N	0.02% typ. @ 1.5 W, HE mode - ensures low-noise mid-bass reproduction in critical listening environments
Supply Voltage Range	8–18 V DC - compatible with automotive battery transients (up to 28 V abs. max)
I²C Clock Frequency	Up to 400 kHz - supports fast diagnostics polling in microcontroller-based head units
Thermal Resistance	R_{th j-case} = 1 °C/W max - allows direct mounting to metal chassis for passive cooling
Clipping Threshold	Selectable 2% or 10% THD via D0 pin - enables precise signal integrity monitoring across speaker types
Standby Current	1 µA typ. - meets automotive "always-on" low-power requirements during ignition-off

Pinout & Package

Package: PowerSO36 (slug-up), thermally enhanced exposed die pad for direct PCB heatsinking; 36-pin surface-mount with integrated thermal tab (TAB connected to GND).

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4, 8, 10, 11, 13, 15, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36	Power supply, ground, input, output, control	Includes 8 dedicated speaker outputs (OUT1± to OUT4±), 4 differential inputs (IN1± to IN4±), SVR, CD, STBY/MUTE, ADSEL/I²CDIS, DATA, CLK, SGND, PWGND, VCC rails
16, 17, 18	Speaker output terminals	OUT2+, OUT2−, OUT3− - part of quad bridge configuration; each pair drives one speaker differentially
5, 6, 7, 9, 12, 14	Diagnostic & control signals	CD (clipping detect), SVR (supply rejection monitor), STBY/MUTE (dual-function pin), ADSEL/I²CDIS (gain/I²C mode select)
TAB	Thermal pad / GND	Exposed copper slug electrically tied to GND; must be soldered to large PCB copper area for thermal conduction

Key Features

Feature	Design Value
Differential Input Architecture	Rejects common-mode noise from long harness runs in vehicle cabins, improving SNR by ≥60 dB vs. single-ended inputs
I²C Diagnostics Bus	Reports per-channel DC offset, AC load status (open/short), and thermal warnings - eliminates need for external sense circuitry
Class SB Efficiency Mode	Reduces average power dissipation by up to 50% vs. Class AB, lowering thermal design burden in space-constrained head units
Configurable Clipping Detection	2% or 10% THD threshold selection enables accurate overload detection for tweeters vs. woofers
Independent Front/Rear Mute Control	Allows zone-specific audio muting (e.g., navigation voice over music) without interrupting other channels

Applications

Car Audio Head Unit

Premium Infotainment System

Use Scenario: Integrated amplifier in OEM dashboard-mounted infotainment unit driving four coaxial speakers.

IC Role / Device Role / Timing Role: Primary 4-channel speaker driver with real-time diagnostics and I²C-controlled mute sequencing.

Use Value: Eliminates external protection ICs and reduces BOM count by integrating short-circuit, open-load, and thermal monitoring.

Use Scenario: High-fidelity audio subsystem in luxury vehicle with active noise cancellation feedback path.

IC Role / Device Role / Timing Role: Output stage providing low-THD, high-SPL drive while feeding speaker voltage data back to DSP via SVR pin.

Use Value: SVR pin delivers supply-rejection-compensated analog signal for adaptive ANC loop calibration.

Aftermarket Amplifier Module

Multi-Zone Rear Seat Entertainment

Use Scenario: Compact 4-channel add-on amplifier board for retrofit installations behind factory radio.

IC Role / Device Role / Timing Role: Standalone power stage controlled via STBY/MUTE pin and gain-selectable line inputs.

Use Value: Pin-strapped operation avoids MCU dependency; 16 dB gain setting enables clean line-output interface to external DSPs.

Use Scenario: Dual-zone audio distribution in minivan: front cabin + rear seat screens with independent volume control.

IC Role / Device Role / Timing Role: Channel-pair driver (OUT1/2 for front, OUT3/4 for rear) with independent mute enable via I²C.

Use Value: Enables synchronized mute/unmute of rear zone without affecting front audio playback timing.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad automotive amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TDA7561DTR	3-channel variant (3×45 W), no I²C diagnostics, fixed 26 dB gain, smaller PowerSO24 package	Lacks per-channel diagnostics and dual-gain flexibility; suited for cost-sensitive 3-speaker systems	Select when system requires only three outputs and diagnostics are handled externally
STA559BWTR	5.1-channel digital input amplifier with integrated DSP, 32-bit I²S interface, no analog inputs	Requires digital audio source; includes parametric EQ and bass management not present in TDA7567PDTR	Select when migrating to digital audio architecture and needing on-chip audio processing

Compared with TDA7561DTR, the TDA7567PDTR adds fourth channel, I²C diagnostics, and gain selectability-critical for modern 4-speaker architectures. Versus STA559BWTR, it retains analog input compatibility and simpler control, avoiding DSP firmware dependencies.

Availability

TDA7567PDTR is available at Aetrix Electronics and suitable for automotive infotainment systems, premium head units, and aftermarket amplifier modules requiring stable component supply, long-lifecycle support, and AEC-Q100-compliant performance.

Supply support for TDA7567PDTR 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 automotive qualification expertise.

The TDA7567PDTR belongs to ST's TDA7xxx automotive audio amplifier family, engineered specifically for high-efficiency, diagnostics-rich, multi-channel speaker drive in space- and thermal-constrained vehicle head units.

FAQ

What is the maximum safe operating temperature for the TDA7567PDTR junction?

The absolute maximum junction temperature is 150 °C per datasheet Table 2. Thermal derating begins at 70 °C case temperature, where total power dissipation must be limited to 85 W. For continuous 4×50 W operation, thermal design must maintain case temperature ≤65 °C using the PowerSO36 thermal pad and ≥200 cm² copper area.

How does the turn-on diagnostic differ from permanent diagnostics?

Turn-on diagnostic executes a single subsonic current pulse immediately after exit from standby, detecting open/short loads before audio playback starts. Permanent diagnostics run continuously every 1 ms in RESTART mode or initiate a 100 ms cycle upon fault detection in DIAGNOSTIC mode, providing real-time speaker health monitoring during active operation.

Can the TDA7567PDTR operate without an I²C controller?

Yes. When ADSEL/I²CDIS pin is pulled high, I²C is disabled and the device operates in pin-control mode: STBY/MUTE pin controls standby/mute states, and gain is fixed by ADSEL pin voltage (1.5 V = 16 dB, 2.3 V = 26 dB). All protection and thermal functions remain fully active.

What is the purpose of the SVR pin and how is it used?

The SVR (Supply Voltage Rejection) pin outputs an analog voltage proportional to supply ripple and noise, enabling external monitoring or feed-forward compensation. In systems with active noise cancellation, this signal is digitized and subtracted from speaker output to cancel supply-induced distortion, improving effective PSRR beyond the IC's intrinsic 60 dB specification.

TDA7567PDTR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: PowerSO-36 Exposed Top Pad

Packaging:: Tape & Reel (TR)

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:: Differential Inputs, 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

TDA7567PDTR FAQ

1.How can I place an order for TDA7567PDTR through Aetrix?

Please submit a Request for Quotation (RFQ) for TDA7567PDTR 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 TDA7567PDTR reliable?

The price and inventory of TDA7567PDTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA7567PDTR is usually 5 days.

3.What payment methods are accepted for TDA7567PDTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA7567PDTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TDA7567PDTR?

TDA7567PDTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TDA7567PDTR 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 TDA7567PDTR?

For technical support, including TDA7567PDTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA7567PDTR requirements.

6.How does Aetrix verify that TDA7567PDTR is sourced from the original manufacturer or authorized distributors?

All TDA7567PDTR 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 TDA7567PDTR meets industry standards.

7.What is the process for return or replacement of TDA7567PDTR?

All TDA7567PDTR units undergo pre-shipment inspection (PSI). If there is an issue with TDA7567PDTR, 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 TDA7567PDTR part is unused and in its original packaging.

Return procedure for TDA7567PDTR:

1.Submit a request within 90 days.

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

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