TAS5162DDVR

Overview

The Texas Instruments TAS5162DDVR is a high-performance stereo digital amplifier power stage designed for high-efficiency audio amplification. It delivers up to 2x210 W into 6-ohm BTL loads and 1x300 W into 4-ohm PBTL loads at 10% THD+N. The device operates with a 50 V PVDD supply and 12 V GVDD/VDD supplies, achieving over 90% efficiency via 80-mΩ output MOSFETs. It features an SNR exceeding 110 dB (A-weighted) when paired with the TAS5518 modulator. The DDV package provides a 44-pin HTSSOP form factor with a thermal PowerPad for heatsink coupling.

Feature Summary

• Integrates proprietary current-limiting circuitry to maintain operation during high-level music transients without shutdown.
• Includes intelligent gate drive with Mid-Z ramp capability to minimize audible pop noise during startup.
• Features programmable overcurrent detection allowing the use of lower-cost inductors in the demodulation filter.
• Provides comprehensive self-protection mechanisms including undervoltage, overtemperature, overload, and short-circuit protection with error reporting.

Applications

• Mini/Micro Audio Systems
• DVD Receivers
• Home Theater

Procurement Notes

Verify the specific ordering suffix matches the required package type, as the TAS5162 is available in both DKD and DDV variants. Confirm that the design utilizes the recommended TI chipset, such as the TAS5508 or TAS5518 modulator, to achieve the specified audio performance metrics. Ensure the system design adheres to the recommended PCB layout for thermal management, particularly regarding the PowerPad connection to the heatsink.

Selection Notes

Select this component for applications requiring high-power stereo output with strict EMI compliance requirements. The device supports multiple configuration modes selectable via hardwired pins, offering flexibility for BTL, PBTL, or single-ended setups. Designers must account for the dual power supply requirement (50 V and 12 V) and ensure adequate decoupling near the PVDD and GVDD pins to maintain stability.

Part Context

The TAS5162 belongs to Texas Instruments' PurePath Digital family of Class-D amplifier power stages. It is engineered to work in conjunction with external PWM processors to create complete high-fidelity audio solutions. The DDVR suffix indicates the 44-pin HTSSOP PowerPad package variant, which offers a smaller footprint compared to the 36-pin PSOP3 option but requires careful attention to thermal interface resistance for optimal heat dissipation.

Replacement Considerations

Direct pin-compatible substitutes are not explicitly confirmed in the provided documentation. Evaluate alternative TI power stages based on required output power, package thermal characteristics, and compatibility with existing PWM modulators.

FAQ

Does the TAS5162 require power-supply sequencing?

No, the device does not require power-supply sequencing due to its internal power-on reset circuitry.

How is the overcurrent limit configured?

The overcurrent limit is programmable via an external resistor connected to the OC_ADJ pin, allowing for optimization with different output filter inductors.