TPA311DGNRG4

Overview

The TPA311DGNRG4 is a mono audio power amplifier manufactured by Texas Instruments, housed in an 8-pin PowerPAD MSOP package. It operates on a single supply voltage ranging from 2.5 V to 5.5 V. The device supports both bridge-tied load (BTL) and single-ended (SE) output configurations. In BTL mode with an 8-ohm load, it delivers up to 700 mW at 5 V and 250 mW at 3.3 V. Key electrical characteristics include a unity-gain bandwidth of 1.4 MHz and a shutdown supply current as low as 7 µA at 3.3 V.

Feature Summary

• Supports dynamic switching between bridge-tied load and single-ended modes via the SE/BTL pin
• Includes integrated depop circuitry to minimize speaker noise during startup and shutdown transitions
• Features thermal overload protection and short-circuit protection for operational reliability

Applications

• Low-voltage portable electronic devices requiring internal speakers
• External earphone drive applications utilizing single-ended configuration
• Battery-powered equipment where board space optimization is critical

Procurement Notes

Verify that the ordering suffix 'G4' corresponds to lead-free manufacturing and RoHS compliance standards as defined by Texas Instruments. Confirm the specific PowerPAD MSOP package variant matches the required thermal dissipation and footprint specifications for the target PCB layout before finalizing procurement orders.

Selection Notes

Select this component for designs requiring a compact mono amplifier solution with minimal external components. The PowerPAD MSOP package offers significant size reduction compared to standard SOIC packages. Ensure the application utilizes a single supply within the 2.5 V to 5.5 V range and requires either high-power BTL output or flexible SE/BTL mode switching capabilities.

Part Context

This part belongs to the TPA311 family of 350-mW mono audio power amplifiers designed specifically for low-voltage consumer electronics. The DGNR suffix indicates the PowerPAD MSOP surface-mount package with reel packaging, while the G4 suffix denotes lead-free and RoHS-compliant material composition.

Replacement Considerations

TPA311DGN is the non-RoHS equivalent in the same PowerPAD MSOP package.