TPA2034D1YZFR

Overview

The TPA2034D1YZFR is a fixed-gain mono Class-D audio power amplifier from Texas Instruments. It delivers 2.75 W output power into a 4-ohm load at 10% THD+N with a 5 V supply. The device operates on a single supply voltage ranging from 2.5 V to 5.5 V and features a fully differential architecture. It utilizes a NanoFree lead-free YZF package, which is a 9-ball wafer chip scale packaging (WCSP) measuring approximately 1.5 mm by 1.5 mm.

Feature Summary

• Fully differential design reduces RF rectification and eliminates the need for input coupling capacitors or mid-supply bypass capacitors.
• Fixed gain configuration integrates internal matched input and feedback resistors to ensure excellent PSRR and CMRR performance.
• Optimized PWM output stage provides high efficiency and improved RF-rectification immunity while minimizing PCB footprint.
• Built-in thermal and short-circuit protection safeguards the device during operation under fault conditions.

Applications

• Wireless handsets
• Personal Digital Assistants (PDAs)
• Mobile devices

Procurement Notes

Verify that the ordering suffix 'R' corresponds to the tape and reel packaging format as specified in the manufacturer documentation. Confirm the specific gain version matches the application requirements, as the TPA203xD1 family includes multiple gain options. Ensure compatibility with the required operating temperature range and supply voltage specifications before finalizing procurement.

Selection Notes

Select this component when a compact, high-efficiency mono amplifier is needed for battery-powered mobile electronics. The fixed 12 dB gain setting distinguishes it from other variants in the series. Consider the small WCSP package size for space-constrained designs where filter-free operation is preferred. Verify that the differential input interface aligns with the source signal characteristics of the target system.

Part Context

This part belongs to the TPA203xD1 family of filter-free Class-D audio amplifiers. The family shares identical pinouts and physical dimensions but differs in fixed gain settings. The TPA2034D1 specifically offers a higher gain compared to the TPA2032D1 and TPA2033D1, making it suitable for applications requiring greater signal amplification without external gain-setting components.

Replacement Considerations

TPA2034D1YZFT serves as a cut-tape alternative within the same package and electrical specification family.

FAQ

Does the TPA2034D1 require an output LC filter?

No, the device is designed for filter-free operation, particularly when speaker traces are short, such as in wireless handsets.

What is the function of the SHUTDOWN pin?

The SHUTDOWN pin controls the device's power state; pulling it low places the amplifier into shutdown mode to minimize quiescent current.