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STMicroelectronics TDA7569BLVPDTR
- Part No.:
- TDA7569BLVPDTR
- Manufacturer:
- STMicroelectronics
- Category:
- Audio Amplifiers
- Package:
- PowerSO-36 Exposed Top Pad
- Datasheet:
-
TDA7569BLVPDTR.pdf
- Description:
- IC AMP AB QUAD 50W POWERSO-36
- Quantity:
- Payment:
- Shipping:
Inventory:598
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Product details
Overview
TDA7569BLVPDTR from STMicroelectronics is a quad-channel Class SB automotive audio power amplifier in PowerSO36 package, delivering 4 × 45 W max into 4 Ω at 14.4 V (10% THD), featuring full I²C diagnostics, low-voltage operation down to 6 V for start-stop systems, and independent short-circuit protection per channel.
For engineers reviewing the TDA7569BLVPDTR datasheet, TDA7569BLVPDTR pinout, TDA7569BLVPDTR application, or TDA7569BLVPDTR equivalent, key selection criteria include I²C-configurable gain (16 dB / 26 dB), clipping detection with selectable 2%/10% thresholds, thermal warning levels (125°C/145°C/160°C), and robust battery transient suppression during cranking.
Technical Context
The TDA7569BLVPDTR implements a patented Class SB architecture combining MOSFET output stage with BCD process technology, enabling high efficiency (up to 75% at 4 Ω, HI-EFF mode) while maintaining low distortion (0.015% THD at 1 W). It integrates four independent bridge outputs with dedicated PWGND pins per channel and dual-level thermal foldback.
Its diagnostic engine performs real-time DC offset detection, AC load impedance classification (open/short/normal), and turn-on fault analysis via I²C-reporting status per speaker with dedicated DB1–DB4 registers. The SVR pin enables active supply rejection enhancement during battery transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Power | 4 × 45 W max @ 14.4 V, 4 Ω, 10% THD - supports premium head unit audio without external heatsink under typical ambient conditions. |
| Supply Voltage Range | 6–18 V - enables reliable operation during engine start-stop cycles where battery drops to 6 V. |
| THD+N | 0.015% typ. @ 1 W, 4 Ω, 1 kHz - ensures high-fidelity reproduction for critical midrange content. |
| I²C Diagnostics | Full bus-driven status reporting (DC offset, AC load, short circuit, thermal warnings) - eliminates need for external monitoring circuitry. |
| Clipping Detection | Selectable 2% or 10% THD threshold via IB1 register - allows precise alignment with speaker excursion limits or DSP limiter settings. |
| Thermal Warning Levels | 125°C / 145°C / 160°C (DB4/D6/D7 configurable) - enables staged system response (e.g., gain reduction → mute → shutdown). |
| SVR Rejection | 70 dB typ. @ 100 Hz–10 kHz - suppresses alternator noise and battery ripple without external filtering. |
Pinout & Package
PowerSO36 (slug-up) thermally enhanced package with exposed die attach pad for direct PCB thermal coupling; 36-pin surface-mount footprint optimized for automotive EMI control and thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB (Pin 1) | Exposed thermal pad | Primary heat path to PCB copper; must be soldered to ≥400 mm² internal ground plane for Rth(j-case) ≤ 1°C/W. |
| OUT1+ (Pin 22) / OUT1− (Pin 21) | Channel 1 bridge output | Differential drive for left-front speaker; requires symmetric trace routing and local 100 nF ceramic decoupling. |
| CK (Pin 3) / DATA (Pin 7) | I²C bus interface | Supports 400 kHz fast-mode; CK doubles as high-efficiency enable when pulled high during power-up. |
| ADSEL (Pin 9) | I²C address select / disable | Configures slave address (0x60–0x63); grounded = default address, open = I²C disabled (analog-only mode). |
| CD (Pin 16) | Clipping detector output | Open-drain logic-low pulse on clipping event; threshold set by IB1 register (2% or 10% THD). |
| SVR (Pin 24) | Supply voltage rejection control | Active filter node; connects to 100 nF capacitor to GND to enhance ripple rejection during cranking. |
| STBY (Pin 11) | Standby/mute control | Three-state logic: <1.2 V = standby (90 dB attenuation), 2.9–3.5 V = mute (80 dB), >4.5 V = active. |
Key Features
| Feature | Design Value |
|---|---|
| Class SB efficiency | 75% typ. @ 4 Ω, 20 W avg - reduces thermal load by ~40% vs. Class AB, enabling smaller heatsinks in space-constrained dash designs. |
| Per-channel fault isolation | Four independent short-circuit detectors with 1.2 V GND-short and Vs-short thresholds - prevents single-load failure from disabling entire amplifier. |
| Start-stop compliance | Stable operation at 6 V supply with full 4×28 W output - meets OEM requirements for micro-hybrid vehicle battery profiles. |
| I²C-configurable gain | 26 dB (low-noise line-out) or 16 dB (high-power speaker drive) - eliminates need for external gain-setting resistors. |
| DC offset detection | ±80 mV max offset during mute/play transitions - prevents speaker coil damage from sustained DC bias. |
Applications
| Infotainment Head Unit | Aftermarket Car Stereo |
|---|---|
|
Use Scenario: Integrated 4-channel amplifier in OEM infotainment system with digital signal processor and CAN bus connectivity. IC Role / Device Role / Timing Role: Final-stage audio driver with I²C-linked diagnostics feeding vehicle network fault logs and thermal telemetry. Use Value: Enables automated speaker health reporting and predictive maintenance alerts without additional sensors or firmware overhead. |
Use Scenario: High-power replacement amplifier for legacy car radios lacking digital diagnostics. IC Role / Device Role / Timing Role: Drop-in upgrade replacing TDA7388 or TDA7561 with added I²C visibility and improved 6 V cranking margin. Use Value: Eliminates manual speaker continuity checks during installation; clipping detection feeds real-time level meters on display. |
| Start-Stop Vehicle Audio | Compact Premium Sound System |
|
Use Scenario: Audio subsystem in hybrid electric vehicle requiring uninterrupted playback during engine restart. IC Role / Device Role / Timing Role: Low-voltage-tolerant power stage maintaining 4×6 W output at 6 V battery, synchronized with vehicle power management controller. Use Value: Guarantees zero-audio-interruption during stop-start cycles, meeting OEM acoustic comfort specifications. |
Use Scenario: Space-constrained center-stack audio module with integrated DSP and amplifier in single PCB assembly. IC Role / Device Role / Timing Role: Thermally efficient Class SB output stage minimizing board-level heat density while delivering 4×45 W peak. Use Value: Allows use of 2-layer PCB with internal ground plane instead of costly 4-layer thermal stackup. |
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 |
|---|---|---|---|
| TDA7561BTR | No I²C diagnostics; fixed 26 dB gain; lower max power (4×35 W @ 4 Ω); no SVR pin. | Lacks digital fault reporting and battery transient suppression - suitable only for cost-sensitive non-OEM systems. | Choose when I²C infrastructure is absent and diagnostics are not required for warranty or service logging. |
| MAX9768AEE+T | Class D topology; higher efficiency (85%); 4×50 W @ 4 Ω; I²C but no per-channel short-circuit detection. | Requires external LC output filters; lacks DC offset detection and multi-level thermal warnings. | Prefer for ultra-low-power systems where EMI filtering is acceptable and discrete fault isolation is unnecessary. |
Compared with TDA7569BLVPDTR, TDA7561BTR sacrifices diagnostics and start-stop capability for lower BOM cost, while MAX9768AEE+T trades analog robustness and integrated protection for peak efficiency-making TDA7569BLVPDTR optimal for OEM-grade reliability with digital serviceability.
Availability
TDA7569BLVPDTR is available at Aetrix Electronics and suitable for automotive infotainment head units, start-stop vehicle audio subsystems, and compact premium sound modules requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for TDA7569BLVPDTR 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, microcontroller, power, and automotive ICs with ISO/TS 16949-certified processes.
The TDA7569BLVPDTR belongs to ST's TDA7xxx automotive audio amplifier family, engineered specifically for OEM infotainment systems demanding high fidelity, diagnostic transparency, and compliance with stringent low-voltage and thermal safety standards.
FAQ
What is the minimum recommended PCB copper area for the TAB pad?
The exposed thermal pad (Pin 1) requires connection to ≥400 mm² of internal ground plane copper to achieve the specified Rth(j-case) ≤ 1°C/W. Use ≥6 thermal vias (0.3 mm diameter, 0.5 mm pitch) filled with solder to transfer heat to inner layers. Insufficient copper area causes premature thermal warning activation above 125°C junction temperature.
How does the I²C address selection work with ADSEL?
ADSEL (Pin 9) sets the I²C slave address: grounded = 0x60, pulled to VCC via 10 kΩ = 0x61, open = 0x62, and tied to DATA via 10 kΩ = 0x63. When ADSEL is left floating, I²C communication is disabled and the device operates in analog-only mode with fixed 26 dB gain and no diagnostics reporting.
Can the clipping detector be used for automatic gain control?
Yes-the CD pin provides an open-drain logic-low pulse during clipping events, synchronized to the detected waveform envelope. By counting CD pulses over 100 ms windows, host MCU firmware can implement closed-loop AGC with 2% or 10% THD thresholds selected via IB1 register, avoiding audible distortion before speaker damage occurs.
What happens during battery cranking below 6 V?
Below 6 V, the TDA7569BLVPDTR enters brown-out protection: output stages disable while maintaining I²C responsiveness. Once supply recovers above 6.2 V, it resumes operation within 50 ms. No latch-up or reset is required-ensuring seamless audio recovery after engine crank without DSP reinitialization.
TDA7569BLVPDTR 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
TDA7569BLVPDTR FAQ
1.How can I place an order for TDA7569BLVPDTR through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA7569BLVPDTR 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 TDA7569BLVPDTR reliable?
The price and inventory of TDA7569BLVPDTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA7569BLVPDTR is usually 5 days.
3.What payment methods are accepted for TDA7569BLVPDTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA7569BLVPDTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA7569BLVPDTR?
TDA7569BLVPDTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA7569BLVPDTR 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 TDA7569BLVPDTR?
For technical support, including TDA7569BLVPDTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA7569BLVPDTR requirements.
6.How does Aetrix verify that TDA7569BLVPDTR is sourced from the original manufacturer or authorized distributors?
All TDA7569BLVPDTR 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 TDA7569BLVPDTR meets industry standards.
7.What is the process for return or replacement of TDA7569BLVPDTR?
All TDA7569BLVPDTR units undergo pre-shipment inspection (PSI). If there is an issue with TDA7569BLVPDTR, 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 TDA7569BLVPDTR part is unused and in its original packaging.
Return procedure for TDA7569BLVPDTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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