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Product Detailed Parameters
- Description：IC AMP AUDIO CLASS D 2.1W 20QFN
- Series：*
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Type：-
- Output Type：-
- Max Output Power x Channels @ Load：-
- Voltage - Supply：-
- Features：-
- Mounting Type：-
- Supplier Device Package：-
- Package / Case：-
- Operating Temperature：-
- Grade：-
- Qualification：-
Download product information
Overview
The HPA01081RTJR is a stereo Class-D audio power amplifier manufactured by Texas Instruments. It delivers 2.1 W per channel into a 4-ohm load with a supply voltage range of 2.5 V to 5.5 V. The device features selectable gain settings and operates within an extended temperature range from -40°C to +85°C. Packaged in a 20-pin QFN (WQFN) format, it integrates GPIO control interfaces for shutdown and mode selection.
Feature Summary
- Filter-free Class-D architecture eliminates external output filters
- Selectable gain configuration for flexible system integration
- GPIO-based control interface for easy shutdown and operation management
Applications
- Portable media players
- Mobile phones and smartphones
- Tablets and handheld devices
Procurement Notes
Verify the exact suffix RTJR confirms the reel packaging quantity and tape specifications required for your assembly line. Confirm RoHS compliance status through the official datasheet as regulatory requirements may vary by region. Ensure the ESD handling procedures match the QFN package sensitivity during storage and installation.
Selection Notes
Select this component when high efficiency and small footprint are critical for battery-powered stereo audio applications. The Class-D topology reduces heat dissipation compared to linear amplifiers. Verify that the analog input signal levels align with the selectable gain options to prevent clipping or noise issues in the final design.
Part Context
This part belongs to the HPA series of audio amplifiers from Texas Instruments, designed specifically for portable consumer electronics. It complements other TPA and HPA models by offering a balance between power output and physical size. The QFN package allows for dense PCB layouts common in modern mobile devices.
Replacement Considerations
Check for direct pin-compatible upgrades within the HPA series. Verify if newer revisions offer improved thermal performance or updated control interfaces. Cross-reference electrical parameters such as THD+N and idle current to ensure equivalent audio quality and power consumption.
