TPA2000D4DAP

Overview

The TPA2000D4DAP is a stereo audio power amplifier manufactured by Texas Instruments. It integrates a 2-W Class-D amplifier for driving speakers with impedances as low as 4 Ω and a separate 90-mW Class-AB headphone amplifier. The device operates on a single supply voltage ranging from 3.7 V to 5.5 V. It features differential inputs, depop circuitry, and shutdown functionality. The component is housed in a 32-pin HTSSOP package and supports an operating temperature range of -40°C to 85°C.

Feature Summary

• Integrates a 2-W Class-D speaker amplifier and a 90-mW Class-AB headphone amplifier in a single solution
• Supports differential input signals for improved noise immunity
• Includes depop circuitry to eliminate audible switching noises during power-up and power-down
• Features a dedicated shutdown pin for effective power management

Applications

• Portable multimedia devices requiring integrated speaker and headphone drive
• Desktop or laptop computers with limited space for audio components
• Consumer electronics utilizing low-impedance speakers and high-impedance headphones

Procurement Notes

Verify the specific suffix DAP corresponds to the 32-HTSSOP package when sourcing. Confirm that the required supply voltage remains within the 3.7 V to 5.5 V range for proper operation. Ensure thermal dissipation requirements are met given the 5.3 W power dissipation rating. Check for compatibility with differential input signal levels before finalizing procurement.

Selection Notes

Select this component when a design requires both speaker and headphone amplification without using external filters. The Class-D section is suitable for low-impedance loads, while the Class-AB section drives headphones efficiently. Consider the 32-pin package size for PCB layout constraints. Verify that the system can provide the necessary supply voltage stability within the specified operating range.

Part Context

This part belongs to the TPA2000 series of audio amplifiers from Texas Instruments. The series focuses on providing complete audio solutions for portable and desktop applications. The TPA2000D4DAP specifically combines Class-D and Class-AB technologies to address different load requirements within a compact form factor.

Replacement Considerations

Check for direct substitutes within the TPA2000 family that may offer different package options or slight performance variations. Ensure any replacement maintains the same pinout configuration or verify if adapter boards are necessary. Confirm that alternative parts support the same supply voltage and temperature ranges.