TDA7052/N2,112

Overview

The TDA7052/N2,112 is a mono output audio amplifier integrated circuit manufactured by NXP USA Inc. Designed for battery-fed portable audio applications, it utilizes a Bridge-Tied-Load (BTL) architecture to deliver up to 1.2 W of output power into an 8 Ω load at 6 V supply with 10% THD. The device operates within a supply voltage range of 3 V to 18 V and features a fixed internal voltage gain of 40 dB. It is housed in an 8-lead dual-in-line plastic package (SOT97-1). Key electrical characteristics include a total quiescent current of 48 mA and a frequency response spanning 20 Hz to 20 kHz.

Feature Summary

• Bridge-Tied-Load (BTL) configuration enables high output power from low-voltage single-supply operation.
• Requires no external components for basic operation, simplifying circuit design.
• Eliminates switch-on and switch-off clicks for improved user experience.
• Short-circuit proof design ensures robustness against load faults.

Applications

• Battery-powered portable tape recorders
• Portable radios requiring compact audio amplification
• Low-voltage consumer audio devices
• Space-constrained electronic gadgets

Procurement Notes

Verify the specific ordering suffix and package variant when sourcing. Confirm that the component meets the required thermal dissipation limits for your application environment. Ensure compatibility with the intended supply voltage range and load impedance specifications provided in the datasheet.

Selection Notes

Select this amplifier for applications prioritizing minimal external component count and low static power consumption. It is suitable for driving small speakers in portable devices where efficiency and simplicity are critical. Consider the fixed 40 dB gain and BTL topology when designing the input stage and speaker interface.

Part Context

The TDA7052 is part of Philips Semiconductors' (now NXP) line of audio power amplifiers. It was specifically engineered to address the trend of reducing battery cells in portable electronics while maintaining adequate audio output levels through its efficient BTL design.

Replacement Considerations

Consult official manufacturer documentation for confirmed substitute part numbers. Verify pinout compatibility and electrical parameters before substituting any alternative components.

FAQ

Does the TDA7052 require external components for operation?

No, the TDA7052 is designed to operate without external components, although application diagrams may show coupling capacitors or potentiometers for specific signal conditioning needs.

What is the maximum supply voltage for the TDA7052?

The absolute maximum supply voltage rating is 18 V. The typical operating range is specified as 3 V to 18 V.