STMicroelectronics TDA7296
- Part No.:
- TDA7296
- Manufacturer:
- STMicroelectronics
- Category:
- Audio Amplifiers
- Package:
- Multiwatt-15 (Vertical, Bent and Staggered Leads)
- Datasheet:
-
TDA7296.pdf
- Description:
- IC AMP AB MONO 60W 15MULTIWATT
- Quantity:
- Payment:

- Shipping:

Inventory:499
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Product details
Overview
TDA7296 from STMicroelectronics is a monolithic Class AB audio power amplifier IC in Multiwatt15 package, designed for high-fidelity consumer audio applications including home stereo systems, self-powered loudspeakers, and premium television audio stages. It delivers up to 60 W music power into 4 Ω loads at ±22 V supply, operates across ±10 V to ±35 V, features integrated mute/standby logic-compatible control, and provides 70 dB standby attenuation with thermal shutdown at 145 °C.
For engineers reviewing the TDA7296 datasheet, TDA7296 pinout, TDA7296 application, or TDA7296 equivalent, key selection considerations include its DMOS output stage enabling high SOA without second breakdown, low 0.005% THD at 1 kHz/5 W, 7–10 V/µs slew rate, and dual independent CMOS-compatible mute/standby inputs for pop-free power sequencing.
Technical Context
The TDA7296 employs a DMOS unity-gain output buffer with local linearising feedback to maintain low crossover distortion and stable quiescent current under wide voltage and load variations. Its BCD 80 mixed bipolar-MOS process enables ±35 V operation and eliminates second breakdown limitations typical of bipolar power stages.
Protection architecture combines dynamic SOA limiting with local temperature sensing-triggering muting at 145 °C junction temperature and full standby at 150 °C-while ESD protection covers all pins. Mute and standby functions are independently controlled via dedicated CMOS-compatible inputs (Pin 10 and Pin 9), each with defined 1.5 V turn-on and 3.5 V turn-off thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±10 V to ±35 V - supports wide-range unregulated supplies and high-power delivery into 4 Ω or 8 Ω loads without external regulation. |
| Continuous Output Power | 30 W RMS @ ±24 V/8 Ω, d ≤ 0.05% - sufficient for mid-to-high-end active speakers and TV audio subsystems. |
| Total Harmonic Distortion | 0.005% @ 1 kHz, 5 W - ensures Hi-Fi-grade linearity critical for audiophile playback fidelity. |
| Slew Rate | 7–10 V/µs - preserves transient response and prevents slew-induced distortion in dynamic audio signals. |
| Standby Attenuation | 70–90 dB - fully silences output during standby, eliminating residual noise in always-on consumer systems. |
| Mute Threshold Voltage | 1.5 V (on), 3.5 V (off) - compatible with standard 3.3 V/5 V logic without level-shifting circuitry. |
| Thermal Shutdown | 145 °C (mute entry), 150 °C (standby entry) - staged protection prevents thermal runaway while preserving signal integrity during overload. |
Pinout & Package
Package: Multiwatt15 vertical form (ECOPACK® compliant), 15-pin single-in-line (SIP) with integrated heat sink tab (Pin 8). Mounting requires mechanical clamping to heatsink via tab; Pin 8 is electrically connected to -Vs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 13, 14, 15 | Signal/Power Interconnect | Input, feedback, bootstrap, and supply connections per typical application circuit; Pin 1 = IN−, Pin 2 = IN+, Pin 3 = MUTE, Pin 4 = STBY, Pin 6 = OUT, Pin 7 = −Vs, Pin 13 = +Vs, Pin 14 = BOOT−, Pin 15 = +PWVs. |
| 8 | Thermal Pad / −Vs | Electrically tied to −Vs rail and serves as primary thermal conduction path to heatsink; must be soldered and clamped. |
| 9 | STBY Input | CMOS-compatible standby enable input referenced to −Vs/GND; 1.5 V threshold initiates muting, 3.5 V releases. |
| 10 | MUTE Input | CMOS-compatible mute enable input referenced to −Vs/GND; independent of STBY for flexible sequencing control. |
| 11, 12 | Not Connected | No internal connection; left floating or grounded per layout best practices to avoid parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| DMOS Power Stage | Eliminates second breakdown risk, enabling safe 5 A peak output current and robust operation into reactive speaker loads. |
| Mute/Standby Independence | Dual CMOS-compatible inputs allow separate control of audio muting and system-level power-down, supporting remote control and low-power sleep modes. |
| No Switch-On/Off Noise | Internally timed turn-on delay and optimized bias sequencing prevent audible pops/clicks during power transitions. |
| High Supply Rejection | 60–75 dB SVR at 100 Hz - maintains clean audio output even with poorly regulated DC supplies common in cost-sensitive consumer designs. |
| Bridge-Ready Architecture | Enables 2× TDA7296 bridge-tied load (BTL) configuration delivering ≥60 W into 8 Ω, ideal for subwoofer amplification without external driver stages. |
Applications
| Home Stereo Amplifier | Self-Powered Loudspeaker |
|---|---|
|
Use Scenario: Integrated stereo channel amplifier in compact bookshelf or floor-standing speaker enclosures with built-in DAC and digital input processing. IC Role / Device Role / Timing Role: Final Class AB power stage driving 4–8 Ω passive transducers; handles full-bandwidth analog signal amplification with minimal added noise or distortion. Use Value: Delivers 30 W continuous clean power with <0.01% THD, enabling high-SPL playback without external heatsinking beyond mechanical mounting tab. |
Use Scenario: Active monitor speaker with analog XLR/RCA inputs and onboard volume control, requiring silent power-up and thermal resilience. IC Role / Device Role / Timing Role: Primary audio power amplifier with integrated mute/standby for remote wake/sleep; manages bootstrapped output stage bias and supply ripple rejection. Use Value: 70 dB standby attenuation and pop-free sequencing eliminate need for external relay mute circuits, reducing BOM and PCB area. |
| Premium Television Audio | Hi-Fi Subwoofer Module |
|
Use Scenario: Embedded audio amplifier in 4K/8K smart TVs where space, thermal budget, and acoustic silence are tightly constrained. IC Role / Device Role / Timing Role: High-efficiency Class AB driver for front-channel speakers; interfaces directly with SoC audio DAC outputs and IR/CEC-controlled power management. Use Value: Operates stably from ±18 V rails with 20 Hz–20 kHz flat frequency response, meeting broadcast audio fidelity standards without external compensation. |
Use Scenario: Compact powered subwoofer using bridge-tied load (BTL) configuration to maximize low-frequency output from limited chassis volume. IC Role / Device Role / Timing Role: One half of dual-TDA7296 BTL pair driving 8–16 Ω vented or sealed enclosures; leverages high-voltage swing and SOA margin for bass transients. Use Value: Enables 60 W music power into 8 Ω in BTL mode at ±29 V, achieving deep-bass extension without discrete MOSFET H-bridge complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar audio power amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDA7297 | Same Multiwatt15 package, but rated for ±28 V max supply and 40 W continuous output; lower thermal shutdown threshold (135 °C). | Targeted at cost-optimized mid-tier audio where 60 W headroom is unnecessary and board space is identical. | Select when supply rails are capped at ±24 V and thermal margin requirements are relaxed. |
| LM1875 | TO-220-5 package, ±25 V max, 20 W continuous, no integrated mute/standby; requires external protection and sequencing circuitry. | Suitable for discrete amplifier modules or legacy designs where through-hole assembly and manual thermal design are acceptable. | Choose only if footprint compatibility with TO-220 heatsinks is mandatory and system-level mute/standby logic is already implemented externally. |
Compared with TDA7297 and LM1875, the TDA7296 uniquely combines 60 W music power, ±35 V operation, and dual CMOS logic inputs in a single SIP package-enabling higher-output, lower-BOM, and quieter consumer audio designs without sacrificing thermal safety or signal fidelity.
Availability
TDA7296 is available at Aetrix Electronics and suitable for home stereo amplifiers, self-powered loudspeakers, and premium television audio systems requiring stable component supply, long-lifecycle support, and consistent electrical performance across production batches.
Supply support for TDA7296 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, designing and manufacturing microcontrollers, analog ICs, MEMS, and power devices for automotive, industrial, and consumer markets.
The TDA7296 belongs to ST's high-voltage audio amplifier product line, developed specifically to replace discrete power stages in Hi-Fi and professional audio equipment while delivering superior SOA, integration, and thermal reliability.
FAQ
What is the minimum recommended supply voltage for reliable TDA7296 operation?
The TDA7296 specifies a minimum supply voltage of ±10 V per absolute maximum ratings. At this level, it delivers approximately 5 W continuous output into 8 Ω with <0.1% THD. For full 30 W capability and optimal distortion performance, ±24 V is recommended per electrical characteristics test conditions.
Can the TDA7296 be used in bridged (BTL) configuration, and what load impedance is supported?
Yes-the TDA7296 is explicitly qualified for bridge-tied load operation using two identical units. ST's datasheet confirms stable operation into ≥8 Ω loads in BTL mode, with 60 W music power achievable at ±29 V supply. Loads below 8 Ω are not recommended due to current and thermal limits.
How does the thermal shutdown behavior differ between muting and standby states?
At 145 °C junction temperature, the TDA7296 enters muting-silencing output while maintaining bias and readiness. At 150 °C, it forces full standby, disabling internal circuitry and reducing quiescent current to 1–3 mA. This two-stage response protects both the IC and connected speakers during sustained overload.
Is external Boucherot cell (R+C network) required for stability with the TDA7296?
No-ST states the Boucherot cell (R6/C10 in typical application) is "normally not necessary" for stable operation. It is only recommended for specific reactive loads when supply voltage drops below ±25 V, making it an optional safeguard rather than a mandatory component in most designs.
TDA7296 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- Multiwatt-15 (Vertical, Bent and Staggered Leads)
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Class AB
- Output Type:
- 1-Channel (Mono)
- Max Output Power x Channels @ Load:
- 60W x 1 @ 8Ohm
- Voltage - Supply:
- ±10V ~ 35V
- Features:
- Depop, Mute, Short-Circuit and Thermal Protection, Standby
- Mounting Type:
- Through Hole
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 15-Multiwatt
TDA7296 FAQ
1.How can I place an order for TDA7296 through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA7296 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 TDA7296 reliable?
The price and inventory of TDA7296 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA7296 is usually 5 days.
3.What payment methods are accepted for TDA7296?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA7296 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA7296?
TDA7296 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA7296 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 TDA7296?
For technical support, including TDA7296 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA7296 requirements.
6.How does Aetrix verify that TDA7296 is sourced from the original manufacturer or authorized distributors?
All TDA7296 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 TDA7296 meets industry standards.
7.What is the process for return or replacement of TDA7296?
All TDA7296 units undergo pre-shipment inspection (PSI). If there is an issue with TDA7296, 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 TDA7296 part is unused and in its original packaging.
Return procedure for TDA7296:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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