TAS5162DKD

Overview

The TAS5162DKD is a stereo digital amplifier power stage in a 36-pin PSOP3 package. It delivers 2x160 W into 8-ohm BTL, 2x210 W into 6-ohm BTL, and 1x300 W into 4-ohm PBTL at 10% THD+N. The device operates with a 50 V PVDD supply and 12 V GVDD/VDD supplies. It achieves greater than 90% efficiency using 80-milliohm output MOSFETs. Audio performance includes over 110 dB SNR with the TAS5518 modulator and less than 0.09% THD+N at 1 W.

Feature Summary

• Integrates intelligent gate drive with Mid-Z ramp capability to minimize pop noise during operation.
• Features proprietary current-limiting circuitry designed to maintain stability during high-level music transients.
• Includes comprehensive self-protection mechanisms covering undervoltage, overtemperature, overload, and short-circuit conditions.
• Requires only a simple passive LC demodulation filter for system implementation.

Applications

• Mini audio systems
• Micro audio systems
• DVD receivers
• Home theater setups

Procurement Notes

Verify the specific DKD suffix indicates the 36-pin PSOP3 package variant. Confirm that the ordering information matches the required thermal characteristics and pinout configuration for your PCB layout. Ensure compatibility with the intended PWM processor chipset for optimal modulation index limits.

Selection Notes

Select this component when designing high-efficiency stereo amplification requiring up to 210 watts per channel. Consider the thermal interface requirements due to the smaller pad area compared to alternative packages. Verify that the system design accommodates the necessary decoupling capacitors for the multiple power supply rails.

Part Context

This device belongs to Texas Instruments' PurePath Digital family of integrated stereo digital amplifier power stages. It is designed to work in conjunction with TI PWM processors like the TAS5508 to create complete low-cost, high-fidelity audio solutions. The DKD package provides a thermally enhanced solution for compact applications.

Replacement Considerations

TAS5162DDV offers identical electrical performance in a 44-pin HTSSOP PowerPad package. Designers must account for the different pinout and reduced pad area when substituting between these package options.

FAQ

Does the TAS5162 require power-supply sequencing?

No, the device does not require power-supply sequencing because it includes an internal power-on reset mechanism.

How is the overcurrent limit configured?

The overcurrent limit is programmable via an external resistor connected to the OC_ADJ pin.