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Product Detailed Parameters
- Description：IC AMP CLASS D STEREO 2.8W 20QFN
- Series：SmartGain™
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Type：Class D
- Output Type：2-Channel (Stereo)
- Max Output Power x Channels @ Load：2.8W x 2 @ 4Ohm
- Voltage - Supply：2.5V ~ 5.5V
- Features：Differential Inputs, Short-Circuit and Thermal Protection, Shutdown, Volume Control
- Mounting Type：Surface Mount
- Supplier Device Package：20-QFN (4x4)
- Package / Case：20-WFQFN Exposed Pad
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The TPA2017D2RTJT is a stereo, filter-free Class-D audio power amplifier manufactured by Texas Instruments. It delivers 2.8 W per channel into a 4-ohm load with a supply voltage range of 2.5 V to 5.5 V. The device integrates Easy SmartGain technology for automatic gain control and dynamic range compression. It operates within an ambient temperature range of -40°C to +85°C and utilizes a 20-pin QFN package.
Feature Summary
- Filter-free Class-D architecture eliminates the need for external output filters.
- Integrates Easy SmartGain technology for automatic gain control and dynamic range compression.
- Provides three selectable SmartGain functions to optimize audio performance.
Applications
- Portable media players
- Mobile phones
- Personal digital assistants
Procurement Notes
Verify the complete part number including the suffix RTJT to ensure correct packaging and tape-and-reel specifications. Confirm that the order matches the specific Texas Instruments manufacturing lot and quality certifications required for your production line. Cross-reference the datasheet revision date to ensure compatibility with your design documentation.
Selection Notes
Select this component when designing battery-powered stereo audio systems requiring high efficiency without external inductors. The integrated SmartGain feature simplifies system tuning by automatically managing input levels. Ensure the power supply voltage remains within the 2.5 V to 5.5 V range to maintain optimal performance and prevent damage.
Part Context
This device belongs to the TPA2017 family of audio amplifiers from Texas Instruments. It is designed specifically for portable applications where space and power efficiency are critical constraints. The filter-free design reduces the overall bill of materials and board area compared to traditional Class-D solutions requiring output filtering.
Replacement Considerations
Consult official Texas Instruments substitution guides for verified alternatives. Generic Class-D amplifiers may lack the specific SmartGain integration or exact pinout compatibility required for direct replacement without schematic modifications.
