TDA7299

Overview

The TDA7299 is a mono audio amplifier in an SO-8 package, designed for 12V sound card applications. It delivers 2W output power at 10% THD with an 8Ω load and 12V supply. The device operates on a supply voltage range of 4.5V to 18V. Key electrical characteristics include an internal fixed gain of 20dB, thermal protection, AC short circuit protection, and low turn-on/off pop noise. It features a fully complementary output configuration allowing rail voltage swing without bootstrap capacitors.

Feature Summary

• Fully complementary output configuration enables rail voltage swing without requiring external bootstrap capacitors.
• Integrated thermal overload protection and AC short circuit protection ensure operational safety.
• Low turn-on/off pop noise minimizes audible disturbances during power transitions.
• Internal fixed gain simplifies circuit design by reducing the need for external components.

Applications

• 12V sound cards
• Portable audio devices
• TV sound systems

Procurement Notes

Verify the specific ordering suffix and package variant when sourcing, as availability may vary between tape-and-reel and tube configurations. Confirm that the component meets RoHS3 compliance requirements for your manufacturing process. Check for end-of-life status or alternative recommendations from STMicroelectronics if current stock levels are insufficient for long-term production needs.

Selection Notes

Select this component for single-channel applications requiring moderate power output in compact surface-mount designs. The absence of bootstrap capacitors reduces bill of materials cost and board space. Ensure the heat dissipation path is adequate for the expected power dissipation at maximum load conditions within the specified operating temperature range.

Part Context

The TDA7299 belongs to STMicroelectronics' family of AB-class audio amplifiers. It complements other models like the TDA7269 and TDA7297, offering a specialized solution for mono audio tasks where stereo capability is unnecessary. Its design focuses on minimizing external component count while maintaining reliable performance in consumer electronics environments.

Replacement Considerations

Direct substitutes are not explicitly confirmed in public documentation. Consider evaluating the TDA7267 for similar mono amplifier requirements, though pinout and electrical specifications must be verified against the original design constraints before implementation.