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

STMicroelectronics TDA7496SA

Name: TDA7496SA
Brand: STMicroelectronics
SKU: TDA7496SA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TDA7496SA

Manufacturer:: STMicroelectronics

Category:: Audio Amplifiers

Package:: Clipwatt-15 (Vertical, Bent and Staggered Leads)

Datasheet:: TDA7496SA.pdf

Description:: IC AMP AB STEREO 5.5W 15CLIPWATT

Quantity:: RFQ Add To RFQ list

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Inventory:3,745

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Product details

Overview

TDA7496SA from STMicroelectronics is a stereo Class AB audio power amplifier delivering 5W + 5W into 8Ω loads at 10% THD with 22V supply, featuring DC-coupled linear volume control, integrated ST-BY and MUTE functions, and thermal/short-circuit protection - designed for high-fidelity TV audio output stages.

For engineers reviewing the TDA7496SA datasheet, TDA7496SA pinout, TDA7496SA application, or TDA7496SA equivalent, key selection criteria include its fixed 30dB closed-loop gain, 5–8Vpp input voltage range, 470µF SVR bypass requirement, and Clipwatt15 package thermal interface constraints for sustained 5W/channel operation.

Technical Context

The TDA7496SA integrates dual independent Class AB amplifier channels with shared biasing and protection circuitry, using MultiPower BCD technology to enable single-supply operation up to 32V. Its internal fixed gain (30dB typ.) eliminates external feedback network design, while soft clipping and CLIPWATT limiting reduce audible distortion during overload.

Volume control is implemented via DC voltage (0–7V) applied to the VOLUME pin, directly modulating variable output buffers (VAROUT_L/R) with 30–100Ω source impedance. MUTE and ST-BY are TTL-compatible digital inputs (thresholds: 1.5V/3.5V), enabling pop-noise–optimized sequencing with independent timing control via external RC networks.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Power	5W + 5W @ 8Ω, THD = 10%, VS = 22V - sufficient for mid-size TV speaker systems without heatsink derating below 50°C ambient
Closed-Loop Gain	30 dB (typ.) - eliminates need for external gain-setting resistors; matches standard line-level input sensitivity
Supply Voltage Range	10–32 V - supports wide-range TV power supplies including 12V and 24V rails
THD+N	0.4% @ 1W, 1kHz, 8Ω - meets broadcast audio fidelity requirements for consumer display devices
Quiescent Current	25–50 mA - enables low-power standby mode with <1 mA draw when ST-BY active
Thermal Protection	150°C thermal muting, 160°C shutdown - prevents latch-up during transient overloads in enclosed TV chassis
Input Impedance	22.5–30 kΩ - compatible with standard op-amp line drivers without loading effects

Pinout & Package

The TDA7496SA uses the Clipwatt15 package: a 15-pin, thermally enhanced SIP (Single In-line Package) with integrated heat slug, requiring mechanical clip mounting to an external heatsink and thermal grease for R_{th j-case} ≤ 5°C/W performance.

Pin/Terminal	Circuit Role	Design Meaning
1, 11, 13, 15	PW_GND	Power ground terminals - must be connected to low-impedance PCB plane; separate from signal ground (S_GND) to avoid hum coupling
2	MUTE	Digital mute enable input - 3.5V threshold activates ≥50dB attenuation; requires 10kΩ pull-down for default mute-on power-up
3	STBY	Standby control input - 3.5V threshold disables amplifier core and reduces I_q to 0.6mA; sequencing with SVR >2.5V prevents turn-on pop
4, 5	INL / INR	Differential-capable line inputs - accept 2.8Vrms max AC signal or DC-biased audio; require 470nF DC-blocking caps per channel
6	N.C.	No connect - internally unused; must remain unconnected per datasheet
7	SVR	Supply voltage reference - connects to 470µF bulk capacitor; critical for supply ripple rejection (35–65dB) and stable biasing
8	S_GND	Signal ground - isolated return path for inputs, volume control, and mute/stby logic to prevent ground loops
9	VAROUT_L	Left channel variable output - buffered DC volume tap; drives 2kΩ min load with 30–100Ω source impedance
10	VOLUME	DC volume control input - 0–7V analog voltage sets attenuation (0–80dB); requires 100nF decoupling for stability
12	VAROUT_R	Right channel variable output - identical to VAROUT_L; enables independent post-volume monitoring or processing
14	OUTL / OUTR	Amplified speaker outputs - deliver ±11V swing into 8Ω; require 1000µF DC-blocking caps before speakers

Key Features

Feature	Design Value
DC-coupled linear volume control	0–7V analog input provides monotonic 80dB attenuation range without log-converter complexity or switch-induced glitches
Integrated thermal and short-circuit protection	Auto-recovering thermal muting at 150°C and hard shutdown at 160°C protect against sustained overload in sealed TV enclosures
Pop-noise–optimized ST-BY/MUTE sequencing	Independent TTL-compatible inputs with defined ON/OFF thresholds enable zero-pop transitions when coordinated with SVR rail ramp
ClipWATT output limiting	Soft-clipping architecture limits peak current to 1.3A while preserving waveform integrity - avoids harsh crossover distortion at full power
No external Boucherot cell required	Internal compensation eliminates need for Zobel network at speaker outputs, reducing BOM count and PCB area in space-constrained TV designs

Applications

Smart TV Audio Amplifier

Set-Top Box Audio Output

Use Scenario: Driving built-in stereo speakers in 32–55" LCD/LED TVs with HDMI/ARC audio input.

IC Role / Device Role / Timing Role: Final-stage stereo power amplifier with integrated volume control and mute for system-level audio management.

Use Value: Eliminates external DAC + op-amp + discrete amp chain; 5W/channel meets EBU R128 loudness compliance for broadcast audio playback.

Use Scenario: Audio output stage in cable/satellite set-top boxes with optical/coaxial SPDIF input and analog RCA output.

IC Role / Device Role / Timing Role: Post-DAC analog amplification and system mute/standby control synchronized with main SoC power states.

Use Value: Single-chip solution reduces component count by 4+ parts; ST-BY current <1mA extends standby battery life in remote-controlled units.

Home Theater Soundbar Channel

Monitor Speaker Amplifier Module

Use Scenario: Left/right channel amplification in compact soundbars using passive radiators and 3" full-range drivers.

IC Role / Device Role / Timing Role: Dual-channel Class AB amplifier with DC volume interface for DSP-controlled level matching across multi-driver arrays.

Use Value: VAROUT_L/R taps allow real-time output monitoring for adaptive EQ; soft clipping prevents driver damage during bass-heavy content.

Use Scenario: Reference-grade desktop monitor speakers requiring low-noise, low-distortion amplification with precise volume tracking.

IC Role / Device Role / Timing Role: High-fidelity analog output stage with 0.4% THD+N and 500µV noise floor for professional audio monitoring.

Use Value: 30kΩ input impedance and 22kHz bandwidth preserve transient response; SVR-based ripple rejection ensures clean output under noisy SMPS conditions.

Equivalent & Alternatives

The following parts are listed as comparable options for similar stereo Class AB audio amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TDA7496S	Same pinout and electrical specs; differs only in packaging (SO-20 vs Clipwatt15) and thermal resistance (R_{th j-amb} = 60°C/W vs 48°C/W)	Lacks integrated heatsink interface; requires larger PCB copper area or external heatsink for 5W sustained output	Select for cost-sensitive designs where thermal budget allows SO-package convection cooling
TDA7495SA	Lower output power (3.5W + 3.5W @ 8Ω); identical pinout, gain, and protection features; shares Clipwatt15 package	Reduced thermal dissipation (12W vs 16W P_tot) eases heatsink sizing but limits maximum SPL in larger enclosures	Select when 3.5W/channel suffices and lower quiescent current (20mA typ.) improves system efficiency

Compared with TDA7496S and TDA7495SA, the TDA7496SA delivers highest continuous power in the Clipwatt15 form factor with best thermal interface, making it optimal for space-constrained TV audio where 5W/channel and minimal pop noise are mandatory.

Availability

TDA7496SA is available at Aetrix Electronics and suitable for Smart TV audio subsystems, set-top box audio outputs, home theater soundbar channels, and monitor speaker amplifier modules requiring stable component supply and long-lifecycle support.

Supply support for TDA7496SA 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, Switzerland, specializing in automotive, industrial, and consumer ICs with vertical manufacturing and broad analog/mixed-signal portfolio.

The TDA7496SA belongs to ST's legacy audio power amplifier product line, engineered specifically for cost-effective, high-SPL stereo audio in mass-market display devices with stringent EMI and thermal constraints.

FAQ

What is the minimum recommended SVR bypass capacitor value for stable operation?

The datasheet specifies a minimum 470µF electrolytic capacitor on the SVR pin, placed within 10mm of the package. Using less capacitance risks supply ripple coupling into the output (reducing SVR from 65dB to <40dB) and may trigger thermal muting under dynamic loads due to localized voltage sag.

Can the TDA7496SA drive 4Ω speakers, and what derating applies?

Yes - it delivers 2.1W per channel into 4Ω at 10% THD with 12V supply. However, power dissipation rises sharply: at 22V/4Ω, total P_tot exceeds 16W, requiring a heatsink with R_{th c-a} ≤ 7°C/W to stay below 150°C junction temperature per the derating curve on page 10.

How does the VOLUME pin interface with microcontroller GPIOs?

The VOLUME pin accepts 0–7V DC; a standard 3.3V or 5V MCU GPIO can drive it directly via an external resistor divider (e.g., 10kΩ + 15kΩ) to scale 0–5V to 0–7V. Do not connect directly - exceeding 7V risks permanent damage, and insufficient decoupling causes volume instability.

Is the TDA7496SA still in active production, and what is its obsolescence status?

Per STMicroelectronics' official documentation (document ID D96AU440D), the TDA7496SA is marked "Obsolete Product(s)" as of its 2003 datasheet revision. Aetrix Electronics maintains limited legacy stock with full traceability and offers engineering support for end-of-life transition planning to functionally aligned replacements.

TDA7496SA Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: Clipwatt-15 (Vertical, Bent and Staggered Leads)

Packaging:: Tube

Product Status:: Obsolete

Type:: Class AB

Output Type:: 2-Channel (Stereo)

Max Output Power x Channels @ Load:: 5.5W x 2 @ 8Ohm

Voltage - Supply:: 10V ~ 32V

Features:: Depop, Mute, Short-Circuit and Thermal Protection, Standby, Volume Control

Mounting Type:: Through Hole

Operating Temperature:: 0°C ~ 70°C (TA)

Grade:: -

Qualification:: -

Supplier Device Package:: 15-Clipwatt

TDA7496SA FAQ

1.How can I place an order for TDA7496SA through Aetrix?

Please submit a Request for Quotation (RFQ) for TDA7496SA 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 TDA7496SA reliable?

The price and inventory of TDA7496SA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA7496SA is usually 5 days.

3.What payment methods are accepted for TDA7496SA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA7496SA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TDA7496SA?

TDA7496SA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TDA7496SA 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 TDA7496SA?

For technical support, including TDA7496SA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA7496SA requirements.

6.How does Aetrix verify that TDA7496SA is sourced from the original manufacturer or authorized distributors?

All TDA7496SA 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 TDA7496SA meets industry standards.

7.What is the process for return or replacement of TDA7496SA?

All TDA7496SA units undergo pre-shipment inspection (PSI). If there is an issue with TDA7496SA, 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 TDA7496SA part is unused and in its original packaging.

Return procedure for TDA7496SA:

1.Submit a request within 90 days.

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

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