TDA7494S STMicroelectronics Integrated Circuit (Transistor Outline, Vertical) In Stock
STMicroelectronics TDA7494S is a single-channel Class AB audio power amplifier IC delivering up to 10 W output power with 26 dB gain and 22 kHz bandwidth. It features a 15-pin ZIP package and less than 10% harmonic distortion for consumer audio applications. Available from authorized distributors with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Transistor Outline, Vertical
- Pin Count
- 15
- Lifecycle
- ACTIVE
- Datasheet
- TDA7494S Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -20.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 10 W nominal output power with 26 dB fixed gain for high-efficiency single-channel audio amplification
- Wide 22 kHz audio bandwidth covering the full audible frequency range with low harmonic distortion below 10%
- 15-pin ZIP (TO-220-style) package with heatsink capability for effective thermal dissipation in compact designs
- Single-supply operation optimized for consumer electronics with minimal external component count
Applications
The TDA7494S is designed for single-channel audio amplification in consumer electronics such as portable radios, television sets, and home audio systems requiring up to 10 W of output power. Its 26 dB gain and 22 kHz bandwidth make it suitable for driving 4-ohm or 8-ohm speakers in multimedia systems and automotive audio heads. The through-hole ZIP package simplifies thermal management, making it a practical choice for cost-sensitive appliances and compact speaker enclosures.
Specifications
| YTEOL | 3.5 |
| Bandwidth-Nom | 22kHz |
| Consumer IC Type | AUDIO AMPLIFIER |
| Gain | 26dB |
| Harmonic Distortion | 10% |
| JESD-30 Code | R-PZIP-T15 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Output Power-Nom | 10W |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | ZIP15,.2,.17TB |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Qualification Status | Not Qualified |
| Supply Current-Max | 50mA |
| Supply Voltage-Max (Vsup) | 35V |
| Supply Voltage-Min (Vsup) | 11V |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Temperature Grade | OTHER |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 1.27mm |
| Terminal Position | ZIG-ZAG |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TDA7494S:
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Frequently Asked Questions
How much output power can the TDA7494S deliver to a speaker load?
The TDA7494S is specified for a nominal output power of 10 W into a typical 4-ohm or 8-ohm speaker load. This power level is appropriate for tabletop radios, small television sets, and compact multimedia speakers that require clear, room-filling audio from a single-supply amplifier operating at standard consumer voltages.
What gain and frequency bandwidth does the TDA7494S provide for audio signal processing?
The TDA7494S provides a fixed voltage gain of 26 dB and supports an audio bandwidth of 22 kHz, covering the full audible frequency spectrum from 20 Hz to 20 kHz. This ensures faithful reproduction of music and voice signals in consumer audio equipment with minimal frequency roll-off across the audio band.
Which package does the TDA7494S use, and how does it handle heat dissipation?
The TDA7494S uses a 15-pin ZIP (R-PZIP-T15) package, a through-hole vertical inline configuration compatible with external heatsinks. At 10 W output, significant heat is generated, so mounting the device to a heatsink with an appropriate thermal interface material — targeting junction temperatures below 150°C — is recommended to maintain reliable long-term operation.
For what consumer applications is the TDA7494S a cost-effective audio amplifier solution?
The TDA7494S is a cost-effective solution for consumer audio products including portable radios, AM/FM tuners, small LCD/LED televisions, and CD or DVD player speaker outputs. Its single-channel, 10 W capability and simple external circuitry reduce BOM costs, and its ZIP package enables integration without complex PCB thermal vias, making it popular in price-sensitive appliance designs.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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