TAS5352ADDVR

Overview

The TAS5352ADDVR is a Class-D digital audio amplifier power stage from Texas Instruments, housed in a 44-pin HTSSOP (DDV) package. It utilizes PWM digital input architecture and Equibit technology for high-fidelity audio amplification. In bridge-tied load (BTL) mode, it delivers up to 125W per channel into 4Ω loads with 10% THD+N. Parallel bridge-tied load (PBTL) configuration supports up to 250W into 2Ω. Single-ended (SE) outputs provide up to 45W into 3Ω or 35W into 4Ω. The device operates with a power supply voltage range of 0V to 37V and achieves power stage efficiency exceeding 90%.

Feature Summary

• Integrates TI Equibit technology for direct PWM digital input compatibility with compatible modulators.
• Features low on-resistance MOSFETs to achieve high power stage efficiency and reduced thermal dissipation.
• Includes comprehensive on-chip protection mechanisms such as under-voltage lockout, over-temperature warning, overload, short-circuit, and PWM activity detection.
• Supports programmable current limiting and error reporting interfaces compatible with both 3.3V and 5V logic levels.

Applications

• Home theater systems requiring multi-channel high-power output.
• AV receivers supporting 5.1 or 7.1 channel configurations.
• Soundbars and television audio systems demanding compact form factors.
• Active speakers and powered subwoofers needing high dynamic range.
• Professional audio equipment requiring reliable high-power amplification.

Procurement Notes

Verify the specific suffix 'ADDVR' against the manufacturer's latest datasheet to confirm pinout and packaging details. Ensure compatibility with system power supply rails within the 0V to 37V range. Confirm that the design meets EMI requirements through proper filtering. Validate that the host controller supports the required PWM frame rates between 192kHz and 432kHz for optimal performance.

Selection Notes

Select this component when high output power is required alongside digital audio inputs. It is suitable for designs aiming to minimize external components by leveraging integrated protection and low static current. Consider the thermal management capabilities provided by the HTSSOP package and high efficiency. Ensure the application benefits from the simplified signal chain enabled by the digital PWM interface.

Part Context

This device belongs to the TAS5352A series of high-performance Class-D amplifier power stages. It is designed to work in conjunction with TI Equibit modulators like the TAS5518. The series targets applications where high fidelity and high power density are critical. The technology allows for simple passive demodulation filters while maintaining low harmonic distortion and noise.

Replacement Considerations

The TAS5352DDV is a related variant within the same family but carries an NRND status. Verify functional equivalence and availability before considering substitution. Check for differences in packaging or electrical specifications if replacing with other TAS5352 series members.

FAQ

What is the maximum power supply voltage supported by the TAS5352ADDVR?

The device supports a power supply voltage (PVDD) range from 0V to 37V.

Does the TAS5352ADDVR require an external DAC?

No, it uses a PWM digital input architecture, eliminating the need for a traditional DAC and analog front-end.

How does the device handle fault conditions?

It includes built-in protections for under-voltage, over-temperature, overload, short-circuit, and PWM signal loss, with independent recovery options.