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

STMicroelectronics TDA75610S-ZST

Name: TDA75610S-ZST
Brand: STMicroelectronics
SKU: TDA75610S-ZST
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TDA75610S-ZST

Manufacturer:: STMicroelectronics

Category:: Audio Amplifiers

Package:: PowerSO-36 Exposed Bottom Pad

Datasheet:: TDA75610S-ZST.pdf

Description:: IC AMP AB QUAD 45W POWERSO-36

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TDA75610S-ZST from STMicroelectronics is a quad-channel Class SB automotive audio power amplifier in PowerSO36 package, delivering up to 4 × 45 W into 4 Ω at 14.4 V with 10% THD, full I²C diagnostics (DC/AC load detection, fault reporting), and operation down to 6 V for start-stop systems.

For engineers reviewing the TDA75610S-ZST datasheet, TDA75610S-ZST pinout, TDA75610S-ZST application, or TDA75610S-ZST equivalent, this device supports robust speaker-level diagnostics, selectable 26 dB/16 dB gain, thermal warning thresholds, clipping detection with 1%/2% threshold options, and dual-mode efficiency control for low-power listening and high-output demand scenarios.

Technical Context

The TDA75610S-ZST implements ST's patented Class SB architecture-combining BCD process MOSFET output stages with adaptive biasing to reduce quiescent dissipation while maintaining linearity. It integrates four independent bridge outputs, each with dedicated short-circuit protection, DC offset detection, and thermal foldback.

I²C communication enables real-time status reporting per channel (e.g., open-load, short-to-GND, short-to-VCC, thermal warnings), configurable via address-select pins and programmable registers. The device supports legacy analog control (STBY/MUTE pins) alongside digital command sets for soft play/mute, gain selection, and diagnostic enable/disable.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Power	4 × 45 W max into 4 Ω @ 14.4 V, 10% THD - enables high-fidelity rear/surround channel amplification without external heatsink oversizing
Supply Voltage Range	6–18 V - supports engine cranking (6 V) and battery transients (up to 28 V absolute max), critical for start-stop compliance
THD+N	0.015% typ. @ 1 W, 1 kHz, 4 Ω - ensures low-noise cabin audio reproduction with minimal harmonic distortion
I²C Diagnostics	Per-channel DC/AC load detection, thermal warnings (THWARN1–THWARN3), and fault latching - eliminates need for external monitoring circuitry
Clipping Detection	Selectable 1% or 2% THD threshold via IB1 register - allows precise signal integrity monitoring for dynamic range optimization
Thermal Resistance	R_th(j-case) = 1 °C/W (PowerSO36) - enables compact PCB layout with direct slug thermal coupling to heatsink
Standby Current	1 µA typ. - meets OEM requirements for ultra-low quiescent consumption during vehicle sleep mode

Pinout & Package

Package: PowerSO36 (slug-up, exposed thermal pad). Pin count: 36 terminals. Thermal performance optimized for automotive under-dash mounting with direct heatsink contact.

Pin/Terminal	Circuit Role	Design Meaning
TAB (Pin 1)	Exposed thermal pad	Primary heat path to PCB/heatsink; must be soldered to copper pour for R_th(j-case) ≤ 1 °C/W
OUT1+ to OUT4− (Pins 2,4,8,10,16–17,19,22,33,34,36)	Differential speaker outputs	Four fully independent bridge outputs; each capable of driving 2 Ω loads (64 W peak) with integrated current limiting
CK / DATA / ADSEL (Pins 3,7,9)	I²C interface + configuration	Standard I²C clock/data lines; ADSEL sets slave address (0x48/0x49) and disables I²C when pulled high
STBY (Pin 11)	Hardware standby control	Logic-level input: <1.2 V = standby (90 dB attenuation), >4.5 V = active - supports fail-safe mute on microcontroller reset
CD (Pin 16)	Clipping detector output	Open-drain flag asserted when output THD exceeds programmed threshold (1% or 2%) - feeds MCU interrupt or LED indicator
SVR (Pin 24)	Supply voltage rejection enhancement	Connects to external capacitor to suppress battery ripple-induced noise during cranking (e.g., 100 µF ceramic)

Key Features

Feature	Design Value
Class SB Efficiency Architecture	Reduces average dissipation by ~40% vs. Class AB at typical listening levels - extends thermal margin and enables smaller heatsinks
Per-Channel Fault Isolation	Four independent short-circuit protections plus DC offset detection - prevents single-channel failure from disabling entire amplifier
Start-Stop Low-Voltage Operation	Stable 4 × 25 W output at 6 V supply - maintains cabin audio functionality during engine stop without brownout or mute events
I²C Diagnostic Reporting	Real-time readout of speaker impedance, thermal state, clipping status, and fault history - replaces discrete sense resistors and comparators
Robust Misconnection Tolerance	Withstands reverse-battery, output short-to-ground/VCC, and floating inputs - reduces field return rates in production vehicles

Applications

Infotainment Head Unit Amplifier

Active Noise Cancellation (ANC) Driver

Use Scenario: Integrated 4-channel amplifier in OEM head unit providing front/rear speaker drive with digital audio processing.

IC Role / Device Role / Timing Role: Final-stage power driver with I²C-configurable gain and real-time speaker health reporting.

Use Value: Eliminates need for external diagnostic ICs and reduces BOM count by consolidating protection, clipping detection, and thermal management into one die.

Use Scenario: Driving error speakers in vehicle cabin ANC systems requiring low-latency, low-distortion analog output.

IC Role / Device Role / Timing Role: High-fidelity, low-THD (<0.02%) analog output stage synchronized to DSP-generated anti-noise waveforms.

Use Value: 22 kHz bandwidth and 70 dB CMRR suppress reference signal leakage, ensuring clean error speaker actuation without feedback oscillation.

Start-Stop Compliant Audio Module

Aftermarket DSP Integration Amplifier

Use Scenario: Audio subsystem in hybrid/electric vehicles where battery voltage drops to 6 V during engine stop.

IC Role / Device Role / Timing Role: Primary power amplifier maintaining rated output power and stability across 6–16 V supply range.

Use Value: No audible dropout or muting during cranking; SVR pin filtering suppresses 100 Hz–10 kHz battery ripple without external regulators.

Use Scenario: External amplifier module receiving processed signals from aftermarket DSP units via line-level inputs.

IC Role / Device Role / Timing Role: High-input-impedance (60 kΩ) analog receiver with selectable 16 dB/26 dB gain to match DSP output swing.

Use Value: Gain-matching flexibility avoids signal clipping in downstream stages; ESD-protected inputs tolerate hot-plug connection to DSP boards.

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
TDA75610S-QLX	Same silicon, Flexiwatt27 horizontal package - larger footprint, higher R_th(j-case) (1.2 °C/W), no exposed thermal slug	Preferred for through-hole prototyping or legacy board reuse; less suitable for high-power density designs	Select when mechanical compatibility with existing Flexiwatt layouts is required and thermal budget allows 15–20% lower power derating
TDA75610S-ZSX	Same silicon, PowerSO36 tube-packaged variant - identical electrical specs and thermal performance, different logistics packaging	No functional difference; used for manual assembly or small-batch builds where tape-and-reel is not needed	Choose for engineering samples or low-volume production where reel handling infrastructure is unavailable

Compared with TDA75610S-QLX and TDA75610S-ZSX, the TDA75610S-ZST offers identical core functionality but optimizes for automated SMT placement and maximum thermal efficiency via tape-and-reel delivery-making it the preferred choice for high-volume automotive Tier-1 manufacturing.

Availability

TDA75610S-ZST is available at Aetrix Electronics and suitable for automotive infotainment systems, start-stop compliant audio modules, and aftermarket DSP-integrated amplifiers requiring stable component supply, long lifecycle support, and AEC-Q100 qualified parts.

Supply support for TDA75610S-ZST 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 over 30 years of OEM qualification experience.

The TDA75610S-ZST belongs to ST's TDA75xx family of intelligent Class SB audio amplifiers-designed specifically for next-generation automotive audio systems demanding high efficiency, comprehensive diagnostics, and robust low-voltage operation.

FAQ

What is the minimum supply voltage for full 4 × 25 W output capability?

The TDA75610S-ZST delivers 4 × 25 W into 4 Ω at 10% THD with a minimum supply of 6 V, verified per Table 5 in the datasheet (DocID025599 Rev 6). This enables uninterrupted audio playback during engine cranking and start-stop cycles without gain reduction or muting.

How does the I²C diagnostic system report speaker faults?

The I²C bus provides per-channel status registers indicating open-load, short-to-GND, short-to-VCC, thermal warnings (THWARN1–THWARN3), and clipping events. Each fault is latched and readable via standard I²C read commands to addresses 0x48 or 0x49, depending on ADSEL pin state.

Can the clipping detector threshold be changed dynamically during operation?

Yes-the clipping threshold is set via the IB1 register (bit D7) and can be modified in real time over I²C. Setting IB1 = 1 selects 10% THD detection; IB1 = 0 selects 2% THD detection. No hardware reconfiguration or power cycle is required.

Is the PowerSO36 package RoHS and AEC-Q100 qualified?

Yes-the TDA75610S-ZST in PowerSO36 packaging is qualified to AEC-Q100 Grade 2 (−40 °C to +105 °C ambient) and complies with RoHS Directive 2011/65/EU. Qualification data is documented in ST's official product change notices and reliability reports.

TDA75610S-ZST Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: PowerSO-36 Exposed Bottom Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Type:: Class AB

Output Type:: 4-Channel (Quad)

Max Output Power x Channels @ Load:: 45W x 4 @ 4Ohm

Voltage - Supply:: 6V ~ 18V

Features:: Mute, Standby

Mounting Type:: Surface Mount

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

Grade:: -

Qualification:: -

Supplier Device Package:: PowerSO-36

TDA75610S-ZST FAQ

1.How can I place an order for TDA75610S-ZST through Aetrix?

Please submit a Request for Quotation (RFQ) for TDA75610S-ZST 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 TDA75610S-ZST reliable?

The price and inventory of TDA75610S-ZST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA75610S-ZST is usually 5 days.

3.What payment methods are accepted for TDA75610S-ZST?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA75610S-ZST transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TDA75610S-ZST?

TDA75610S-ZST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TDA75610S-ZST 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 TDA75610S-ZST?

For technical support, including TDA75610S-ZST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA75610S-ZST requirements.

6.How does Aetrix verify that TDA75610S-ZST is sourced from the original manufacturer or authorized distributors?

All TDA75610S-ZST 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 TDA75610S-ZST meets industry standards.

7.What is the process for return or replacement of TDA75610S-ZST?

All TDA75610S-ZST units undergo pre-shipment inspection (PSI). If there is an issue with TDA75610S-ZST, 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 TDA75610S-ZST part is unused and in its original packaging.

Return procedure for TDA75610S-ZST:

1.Submit a request within 90 days.

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

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