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 TDA7495S

Name: TDA7495S
Brand: STMicroelectronics
SKU: TDA7495S
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: TDA7495S

Manufacturer:: STMicroelectronics

Category:: Audio Amplifiers

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

Datasheet:: TDA7495S.pdf

Description:: IC AMP AB STEREO 11W 15MULTIWATT

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:1,734

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

Product details

Overview

TDA7495S from STMicroelectronics is a stereo Class AB audio power amplifier delivering 11W + 11W into 8Ω loads at 28V supply and 10% THD, housed in a Multiwatt-15 package. It integrates standby and mute functions, soft clipping, thermal overload and short-circuit protection, and fixed 30dB gain-designed for high-fidelity TV audio systems requiring low pop noise and single-supply operation up to 35V.

For engineers reviewing the TDA7495S datasheet, TDA7495S pinout, TDA7495S application, or TDA7495S equivalent, key selection criteria include output power vs. supply voltage (11W @ 28V/8Ω), thermal shutdown threshold (160°C), mute/standby logic thresholds (2.3–2.7V), quiescent current (70–100mA), and SOFT CLIPPING behavior under overdrive conditions.

Technical Context

The TDA7495S implements a dual-channel linear amplifier architecture with internally fixed closed-loop gain (28.5–31.5dB) and rail-to-rail output stage biasing. Its SVR pin (pin 7) serves as the reference for internal DC offset control and supply rejection regulation, enabling stable operation without external Boucherot cells or RC networks.

Standby and mute are independently controlled via TTL-compatible inputs (pins 9 and 10), each with defined turn-on/off thresholds (2.3–2.7V) and sub-mA bias currents. Thermal muting activates at 150°C and full shutdown occurs at 160°C, with junction-to-case thermal resistance of 2.0–2.8°C/W ensuring predictable derating in Multiwatt-15 PCB layouts.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Power	11W + 11W @ 28V/8Ω, THD = 10%; enables full-range TV speaker drive without external heatsinking at moderate volume levels
Supply Voltage Range	11–35V DC; supports wide-input consumer power rails including legacy 24V and modern 12–28V TV SMPS outputs
Closed-Loop Gain	28.5–31.5dB (fixed); eliminates need for external feedback network, simplifying layout and reducing component count
THD+N	0.4% @ 1W/1kHz; ensures audibly transparent mid-band reproduction in broadcast-quality audio paths
Quiescent Current	70–100mA @ 20V; balances idle power consumption against thermal rise in enclosed TV chassis
Thermal Shutdown	160°C junction temperature; provides hard fault protection during sustained overload or poor ventilation
Input Resistance	22.5–30kΩ; compatible with standard line-level op-amp outputs and avoids loading of preceding preamp stages

Pinout & Package

The TDA7495S is packaged in the vertical Multiwatt-15 (MW15) thermally enhanced through-hole package with integrated heat slug, optimized for PCB copper pour thermal coupling and mechanical stability in consumer audio modules.

Pin/Terminal	Circuit Role	Design Meaning
1, 11, 15	PW_GND	Power ground terminals-must be connected to low-impedance PCB ground plane and tied directly to heatsink mounting pad
2	MUTE	Active-low mute control input; <2.3V = mute, >2.7V = play; 0.2–2µA bias current allows direct MCU GPIO drive
3	STBY	Active-high standby control input; >2.7V = active, <2.3V = standby; 0.6–1mA quiescent draw in standby mode
4, 8	S_GND	Signal ground reference for inputs and SVR; isolated from PW_GND to minimize ground loop hum in differential input paths
5	INR	Right channel input (inverting); 22.5–30kΩ impedance accepts line-level signals without attenuation or buffering
6	N.C.	No connection-internally unused; must remain unconnected per datasheet to avoid parasitic coupling
7	SVR	Supply voltage reference node; sets internal bias points and enables high PSRR (35–65dB) without external capacitor
9	OUTR	Right channel output; delivers 11W into 8Ω with 5–8V/µs slew rate, supporting 20Hz–20kHz full-power bandwidth
10	OUTL	Left channel output; symmetrical performance to OUTR; requires matched output LC filtering for EMI compliance
12	VS	Main power supply input; rated for 40V absolute max; requires ≥470µF bulk capacitance for ripple rejection
13	INL	Left channel input (inverting); identical electrical characteristics to INR; supports independent source routing
14	N.C.	No connection-no internal bond wire; floating per design; no pull-up/down required

Key Features

Feature	Design Value
Soft Clipping	Gradual gain compression above 1W output prevents harsh harmonic distortion and protects speakers during transient peaks
No Boucherot Cell Required	Internal compensation eliminates need for external Zobel network, reducing BOM cost and board space in compact TV designs
Low Turn-On/Off Pop Noise	Controlled mute/standby sequencing (via SVR >2.5V condition) suppresses audible thumps during power cycling
Single-Supply Operation	Operates from 11–35V DC with no negative rail-enables direct integration into cost-sensitive TV mainboard power domains
Integrated Protection	Combines thermal muting (150°C), thermal shutdown (160°C), and short-circuit current limiting (1.7–2.4A peak) in one die

Applications

TV Audio Amplification

Set-Top Box Audio Output

Use Scenario: Integrated stereo amplification in flat-panel TVs with built-in speakers and 24V SMPS power rails.

IC Role / Device Role / Timing Role: Final-stage Class AB power driver delivering 11W/channel into 8Ω speakers with fixed gain and thermal safety.

Use Value: Eliminates need for external gain-setting resistors and discrete protection circuits, reducing total solution size by ~35% versus discrete alternatives.

Use Scenario: Audio output stage in digital cable/satellite set-top boxes requiring low-noise, low-pop playback during channel switching.

IC Role / Device Role / Timing Role: Mute-controlled stereo amplifier synchronized to HDMI CEC or IR command timing for zero-thump transitions.

Use Value: Standby current <1mA and precise 2.5V mute threshold enable deterministic mute timing within 5ms of MCU signal assertion.

Home Theater Soundbar

Monitor Speaker Systems

Use Scenario: Compact stereo amplification in slim-profile soundbars powered from 19–28V adapter supplies.

IC Role / Device Role / Timing Role: Dual-channel power amplifier with shared thermal sensing and independent mute control per channel.

Use Value: Multiwatt-15 package allows direct heatsink mounting on aluminum extrusion, achieving 11W/channel without forced air cooling.

Use Scenario: OEM monitor speakers with integrated DAC and analog input, requiring clean, low-EMI audio output.

IC Role / Device Role / Timing Role: Line-powered stereo amplifier with high PSRR (≥65dB at 1kHz) and 500µV RMS noise in play mode.

Use Value: SVR-referenced architecture rejects switching noise from adjacent DC-DC converters, preserving SNR >95dB(A).

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
TDA7492	Class D topology, 2×15W @ 8Ω, higher efficiency (85%), but requires external LC filter and has higher EMI risk	Better suited for battery-powered or thermally constrained portable designs; not drop-in compatible due to different pinout and control logic	Select when >80% efficiency and lower thermal load outweigh analog fidelity requirements and layout complexity
STA516B	Multi-channel (2.1) Class D IC with integrated DSP, 2×15W + 30W subwoofer, I²S interface, and programmable EQ	Targets smart speaker and voice-enabled systems requiring digital audio processing and multi-zone output	Choose only if system architecture includes digital audio sources and firmware-based audio tuning capability

Compared with TDA7492 and STA516B, the TDA7495S offers superior analog signal integrity, simpler passive layout, and guaranteed THD <0.4% at 1W-making it optimal for cost-sensitive, line-powered TV and monitor audio where EMI and design cycle time are critical constraints.

Availability

TDA7495S is available at Aetrix Electronics and suitable for TV audio subsystems, set-top box output stages, home theater soundbars, and monitor speaker systems requiring stable component supply and long-lifecycle support.

Supply support for TDA7495S 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 analog, power, microcontrollers, and automotive ICs with broad manufacturing and quality infrastructure.

The TDA7495S belongs to ST's legacy audio power amplifier product line, engineered specifically for high-fidelity, low-cost consumer video equipment where reliability, thermal robustness, and minimal external components are mandatory.

FAQ

What is the minimum supply voltage required for full 11W output?

The TDA7495S delivers 11W into 8Ω only at VS ≥26V; at 18V supply, maximum output drops to 4W (10% THD). The absolute minimum operating voltage is 11V, but usable power falls below 1W below 14V. Designers must verify supply rail stability under dynamic load to avoid brownout-induced distortion.

Can the TDA7495S drive 4Ω speakers?

Yes-it delivers 8.7W per channel into 4Ω at 20V/10% THD, but power dissipation increases significantly. At 28V, 4Ω operation exceeds safe junction temperature without substantial heatsinking. Derating curves in Figure 6 show P_DISS reaches 16W at 10W output into 4Ω, requiring ≥1.5°C/W heatsink thermal resistance.

How is the SVR pin used in circuit design?

The SVR pin (7) is an internal reference node-not an output-and must be bypassed to S_GND with a 1µF ceramic capacitor. It establishes the amplifier's DC operating point and enables high PSRR; floating or resistively pulled SVR causes severe DC offset (>±750mV) and instability per datasheet Section 3.

Is there a recommended PCB layout for thermal management?

Yes-the Multiwatt-15 package requires a minimum 400mm² copper pour (20×20mm) connected to all three PW_GND pins (1, 11, 15) and thermally coupled to an external heatsink via the central metal tab. Vias under the tab (≥6×0.5mm diameter) and 70µm copper thickness are specified in ST Application Note AN2432 to maintain R_{th j-amb} ≤35°C/W.

TDA7495S Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

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

Packaging:: Bulk

Product Status:: Obsolete

Type:: Class AB

Output Type:: 2-Channel (Stereo)

Max Output Power x Channels @ Load:: 11W x 2 @ 8Ohm

Voltage - Supply:: 11V ~ 35V

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

Mounting Type:: Through Hole

Operating Temperature:: -20°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Supplier Device Package:: 15-Multiwatt

TDA7495S FAQ

1.How can I place an order for TDA7495S through Aetrix?

Please submit a Request for Quotation (RFQ) for TDA7495S 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 TDA7495S reliable?

The price and inventory of TDA7495S are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA7495S is usually 5 days.

3.What payment methods are accepted for TDA7495S?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA7495S transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TDA7495S?

TDA7495S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TDA7495S 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 TDA7495S?

For technical support, including TDA7495S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA7495S requirements.

6.How does Aetrix verify that TDA7495S is sourced from the original manufacturer or authorized distributors?

All TDA7495S 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 TDA7495S meets industry standards.

7.What is the process for return or replacement of TDA7495S?

All TDA7495S units undergo pre-shipment inspection (PSI). If there is an issue with TDA7495S, 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 TDA7495S part is unused and in its original packaging.

Return procedure for TDA7495S:

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…