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 TDA7569BDLVPDTR

Name: TDA7569BDLVPDTR
Brand: STMicroelectronics
SKU: TDA7569BDLVPDTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: TDA7569BDLVPDTR

Manufacturer:: STMicroelectronics

Category:: Audio Amplifiers

Package:: PowerSO-36 Exposed Top Pad

Datasheet:: TDA7569BDLVPDTR.pdf

Description:: IC AMP AB QUAD 50W POWERSO-36

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,808

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

Product details

Overview

TDA7569BDLVPDTR from STMicroelectronics is a quad-channel Class SB differential audio power amplifier designed for automotive head units, delivering 4 × 50 W into 2 Ω at 14.4 V with 10% THD, featuring full I²C diagnostics, low-voltage operation down to 6 V ("start-stop"), and MOSFET/DMOS output stage.

For engineers reviewing the TDA7569BDLVPDTR datasheet, TDA7569BDLVPDTR pinout, TDA7569BDLVPDTR application, or TDA7569BDLVPDTR equivalent, key selection considerations include I²C-configurable gain (16 dB / 26 dB), independent channel short-circuit protection, clipping detection with selectable 2%/10% thresholds, and thermal warning levels at 125°C/145°C/160°C.

Technical Context

The TDA7569BDLVPDTR implements a Class SB architecture combining high efficiency (up to 75% at 4 Ω in HI-EFF mode) with analog linearity, using Multipower BCD process and DMOS power output transistors. Its differential input stage provides >70 dB CMRR and enhanced noise immunity in noisy automotive environments.

Integrated diagnostics operate across three modes-turn-on, permanent, and AC load detection-reporting per-channel fault status (short-to-GND, short-to-VS, open/normal load) via I²C register reads. Thermal management includes linear foldback and three programmable junction temperature warnings.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Power	4 × 50 W @ 14.4 V, 2 Ω, 1 kHz, 10% THD - enables high-SPL rear-seat audio without external heatsink in compact head unit designs
Supply Voltage Range	6–16 V (2 Ω), 6–18 V (4 Ω) - supports engine cranking and "start-stop" battery profiles without mute or reset
THD+N	0.015% typ. @ 1–10 W, STD mode - meets OEM requirements for low-noise cabin audio reproduction
I²C Diagnostics	Full bus-read capability for DC offset, clipping, load impedance, and thermal state - eliminates need for external monitoring circuitry
Clipping Detection	Selectable 2% or 10% THD threshold on CD pin - allows dynamic headroom optimization per speaker zone
Thermal Warning Levels	125°C, 145°C, 160°C (DB4/DB1 registers) - enables staged thermal response: warning → gain reduction → mute
Standby Current	1 μA max - satisfies automotive ISO 8820-10 quiescent current limits for always-on infotainment systems

Pinout & Package

Package: PowerSO36 (slug-up, exposed thermal pad), RoHS-compliant, thermally optimized for PCB-mounted heatsinking.

Pin/Terminal	Circuit Role	Design Meaning
OUT1+ / OUT1− to OUT4+ / OUT4−	Differential output pairs (CH1–CH4)	Bridge-tied load (BTL) drive with ±2.5 V offset tolerance - supports 4 Ω or 2 Ω speakers without DC-blocking capacitors
IN1+ / IN1− to IN4+ / IN4−	Differential audio inputs	90–140 kΩ input impedance, >70 dB CMRR - rejects common-mode noise from CAN/LIN bus coupling
CK / DATA	I²C clock and bidirectional data	400 kHz max SCL frequency, 2.3–5.5 V VIH - compatible with standard automotive microcontroller I²C peripherals
STBY	3-state standby/mute control	Three-level logic: <1.2 V = standby (1 μA), 2.9–3.5 V = mute, >4.5 V = play - enables hardware-safe power sequencing
CD	Open-drain clipping detector output	Active-low pulse at selected THD threshold - directly drives LED indicators or MCU GPIO interrupt pins
SVR	Supply voltage rejection compensation	Improves PSRR by 10–15 dB during battery transients - reduces audible "thump" during ignition cranking

Key Features

Feature	Design Value
Class SB Efficiency	75% typical at 4 Ω, HI-EFF mode - cuts thermal dissipation by ~40% vs. Class AB, enabling smaller heatsinks in space-constrained dash layouts
Per-Channel Fault Protection	Four independent short-circuit detectors with <0.5 Ω trip threshold - prevents single-channel failure from disabling entire amplifier
I²C Gain Selection	26 dB (low-noise line-out) or 16 dB (high-power speaker drive) - simplifies system-level gain staging without external resistors
DC Offset Detection	±2.5 V detection window with automatic mute - avoids speaker damage from output-stage bias drift over temperature
Start-Stop Operation	Stable operation at 6 V supply - maintains audio continuity during engine restart, meeting VW TL-81345 and GMW3172 requirements

Applications

Automotive Infotainment Head Unit

Aftermarket DSP Integration

Use Scenario: OEM-grade 4-channel audio processing in compact dashboard head units with digital signal processor (DSP) backend.

IC Role / Device Role / Timing Role: Final-stage BTL amplifier driving front/rear speakers; receives I²S or analog signals from DSP; synchronized mute/stby via STBY pin.

Use Value: Full I²C diagnostics eliminate need for discrete fault-sensing components, reducing BOM count and PCB area by ≥30% versus discrete op-amp + driver solutions.

Use Scenario: High-fidelity aftermarket audio upgrade where DSP outputs feed dedicated amplification stages.

IC Role / Device Role / Timing Role: Precision line-driver or speaker-driver depending on gain setting; differential inputs reject noise from long RCA cable runs; CD pin triggers DSP limiter algorithms.

Use Value: 26 dB gain mode delivers ultra-low-noise line output (<30 µV EIN) for downstream ADCs, while 16 dB mode drives 2 Ω loads directly - one IC serves dual signal-path roles.

Start-Stop Compliant Audio System

Thermally Constrained Dashboard Module

Use Scenario: Vehicle platforms with regenerative braking and engine auto-stop requiring uninterrupted audio during 6–9 V battery dips.

IC Role / Device Role / Timing Role: Primary amplifier maintaining playback through cranking events; SVR pin dynamically compensates for supply ripple; internal diagnostics flag brownout conditions via I²C.

Use Value: Eliminates external LDO or buck-boost pre-regulator, reducing system cost and footprint while meeting ISO 16750-2 Pulse 4 transient immunity.

Use Scenario: Space-limited center-stack modules where thermal mass is restricted and forced convection is unavailable.

IC Role / Device Role / Timing Role: Thermally intelligent amplifier with three-tier junction warnings (125°C/145°C/160°C); linear foldback reduces output before hard thermal shutdown.

Use Value: Enables continuous 4 × 28 W output at 70°C case temperature without fan or extruded heatsink - reduces thermal design complexity and qualification time.

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
TDA7561DTR	Legacy 4 × 45 W Class AB; no I²C diagnostics; fixed 26 dB gain; 8-pin SO package	Lacks per-channel fault reporting and thermal warning registers - requires external comparators for basic protection	Choose only for cost-sensitive legacy designs where diagnostics are handled externally and thermal margin is ample.
MAX9768AETL+	4 × 30 W Class D; I²C control only (no diagnostics); 24-pin TQFN; 3.3 V logic interface	No DC offset or load impedance detection; lower max output power; requires external gate drivers	Prefer when board space is critical and system already uses 3.3 V microcontrollers - but not for diagnostic-critical OEM programs.

Compared with TDA7569BDLVPDTR, TDA7561DTR sacrifices diagnostics and thermal intelligence for lower cost and simpler layout, while MAX9768AETL+ trades output power and robustness for compact packaging and digital-only control - neither matches the integrated safety, efficiency, and low-voltage resilience of the TDA7569BDLVPDTR in modern start-stop architectures.

Availability

TDA7569BDLVPDTR is available at Aetrix Electronics and suitable for automotive infotainment head units, start-stop compliant audio systems, and thermally constrained dashboard modules requiring stable component supply, full diagnostic visibility, and robust low-voltage operation.

Supply support for TDA7569BDLVPDTR 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-grade analog, power, and microcontroller solutions with broad AEC-Q100 qualification coverage.

The TDA7569BDLVPDTR belongs to ST's TDA7xxx automotive audio amplifier family, engineered specifically for next-generation head units demanding high efficiency, comprehensive diagnostics, and seamless integration with vehicle battery management systems.

FAQ

What is the minimum supply voltage for continuous operation?

The TDA7569BDLVPDTR operates continuously down to 6 V at rated output power into 4 Ω, validated per ISO 16750-2 Pulse 4 and OEM "start-stop" specifications. Below 6 V, the device enters undervoltage lockout and asserts fault flags via I²C register DB1 bit D6, preventing uncontrolled operation during deep battery sag.

How does the I²C diagnostic system report speaker faults?

Fault status is reported in real time through dedicated I²C registers: DB1–DB4 contain per-channel short/open load, DC offset, and thermal warnings. For example, DB1[7:4] encodes CH1–CH4 short-to-GND status, while DB3[3:0] reports open-load detection. No polling is required - interrupts can be generated using the CD pin in conjunction with register reads.

Can the clipping detector be used without I²C configuration?

Yes. The CD pin operates autonomously: when enabled via IB1 register bit D0, it pulses low at the selected THD threshold (2% or 10%) regardless of I²C activity. Default behavior is 2% threshold active at power-up; no I²C write is needed to use basic clipping indication with an LED or MCU GPIO.

What thermal derating applies above 70°C case temperature?

Derating follows linear thermal foldback: output power reduces proportionally as case temperature exceeds 70°C, reaching zero at 150°C junction limit. At 105°C case (Tamb = 85°C), maximum output is ~4 × 22 W into 4 Ω. The R_{th j-case} of 1°C/W mandates direct thermal pad soldering to ≥200 mm² copper pour for sustained operation.

TDA7569BDLVPDTR 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:: 50W x 4 @ 4Ohm

Voltage - Supply:: 6V ~ 18V

Features:: Mute, Short-Circuit and Thermal Protection

Mounting Type:: Surface Mount

Operating Temperature:: -40°C ~ 105°C (TA)

Grade:: -

Qualification:: -

Supplier Device Package:: PowerSO-36

TDA7569BDLVPDTR FAQ

1.How can I place an order for TDA7569BDLVPDTR through Aetrix?

Please submit a Request for Quotation (RFQ) for TDA7569BDLVPDTR 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 TDA7569BDLVPDTR reliable?

The price and inventory of TDA7569BDLVPDTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA7569BDLVPDTR is usually 5 days.

3.What payment methods are accepted for TDA7569BDLVPDTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA7569BDLVPDTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TDA7569BDLVPDTR?

TDA7569BDLVPDTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TDA7569BDLVPDTR 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 TDA7569BDLVPDTR?

For technical support, including TDA7569BDLVPDTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA7569BDLVPDTR requirements.

6.How does Aetrix verify that TDA7569BDLVPDTR is sourced from the original manufacturer or authorized distributors?

All TDA7569BDLVPDTR 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 TDA7569BDLVPDTR meets industry standards.

7.What is the process for return or replacement of TDA7569BDLVPDTR?

All TDA7569BDLVPDTR units undergo pre-shipment inspection (PSI). If there is an issue with TDA7569BDLVPDTR, 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 TDA7569BDLVPDTR part is unused and in its original packaging.

Return procedure for TDA7569BDLVPDTR:

1.Submit a request within 90 days.

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

Tech Hub

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…