TDA7052BT/N1,112

Overview

The TDA7052BT/N1,112 is a mono Bridge-Tied Load (BTL) audio amplifier manufactured by NXP Semiconductors. It integrates DC volume control and requires minimal external components. The device delivers 0.5 W output power into a 16 Ω load at a 6 V supply. Key electrical parameters include a maximum voltage gain of 40.5 dB, a quiescent current of 9.2 mA typical, and operation within a supply voltage range of 4.5 V to 18 V. It features thermal protection and short-circuit proofing.

Feature Summary

• Integrated DC volume control stage eliminates the need for external coupling capacitors
• Bridge-Tied Load (BTL) architecture reduces peak supply current and ripple frequency
• Built-in Missing Current Limiter (MCL) protects against excessive output currents
• Includes thermal protection and mute mode functionality

Applications

• Television sets and monitor internal audio amplification
• Battery-fed portable recorders requiring low power consumption
• Portable radio receivers utilizing single-supply configurations
• Headphone applications with limited output current requirements

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm package integrity upon receipt. Review the latest product status on the manufacturer website as this specific ordering suffix may indicate discontinued or legacy stock availability.

Selection Notes

Select this component for designs requiring integrated DC volume adjustment without external coupling capacitors. Ensure the load impedance matches the 16 Ω specification for the BT variant to achieve rated power. Verify that the application does not exceed the 18 V maximum supply voltage limit.

Part Context

This part belongs to the TDA7052B family of mono BTL audio amplifiers. The 'BT' designation indicates the SO8 plastic small outline package variant, while the base TDA7052B refers to the DIP8 dual in-line package. Both variants share identical electrical characteristics and functional descriptions.

Replacement Considerations

Direct replacement parts are not explicitly confirmed in the provided documentation. Designers should evaluate alternative mono BTL amplifiers with similar DC volume control integration and comparable power output specifications.

FAQ

How is the mute mode activated?

The device switches to mute mode when the DC volume control voltage falls below 0.4 V.

What is the function of the Missing Current Limiter (MCL)?

The MCL circuit activates when the current difference between the output terminals exceeds 100 mA, protecting the device during short circuits or overload conditions.