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Product Detailed Parameters
- Description：IC AMP CLASS AB STER 70MW 8MSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Type：Class AB
- Output Type：Headphones, 2-Channel (Stereo)
- Max Output Power x Channels @ Load：70mW x 2 @ 8Ohm
- Voltage - Supply：2.5V ~ 5.5V
- Features：Depop, Short-Circuit and Thermal Protection, Shutdown
- Mounting Type：Surface Mount
- Supplier Device Package：8-HVSSOP
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The TPA122DGNR is a stereo audio power amplifier manufactured by Texas Instruments, designed for low-voltage portable applications. It operates on a single supply voltage ranging from 2.5 V to 5.5 V and delivers up to 70 mW per channel into an 8-ohm load. The device utilizes Class-AB output topology to balance efficiency with audio fidelity. It is housed in an 8-pin HVSSOP package with a PowerPad for thermal management. Key electrical characteristics include a quiescent current of 700 µA and a gain-bandwidth product of 1.4 MHz. The component supports both mono and stereo configurations.
Feature Summary
- Supports stereo or mono operation with integrated short-circuit protection
- Optimized for battery-powered devices with low quiescent current consumption
- Features internal biasing to minimize external component count
Applications
- Portable media players
- Mobile phones
- Personal digital assistants
Procurement Notes
Verify the specific suffix 'GNR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 8-HVSSOP footprint matches the target PCB design guidelines. Ensure compliance with RoHS directives as indicated in official documentation before finalizing procurement specifications.
Selection Notes
Select this component when designing systems requiring a compact stereo amplifier solution under 5.5 V. Consider the 8-HVSSOP package constraints for thermal dissipation at maximum output levels. Evaluate the 700 µA standby current against strict power budget requirements for battery-operated consumer electronics.
Part Context
This part belongs to the TPA122 family of audio amplifiers, which are engineered for high-efficiency performance in space-constrained mobile devices. The DGNR variant specifically denotes the surface-mount HVSSOP package configuration. It serves as a direct replacement for legacy mono or stereo amplifier solutions in upgraded portable hardware designs.
Replacement Considerations
TPA122DR
FAQ
What is the maximum supply voltage for the TPA122DGNR?
The maximum operating supply voltage is 5.5 V.
Does the TPA122DGNR support mono operation?
Yes, the device can be configured for either 1-channel mono or 2-channel stereo output.
