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Product Detailed Parameters
- Description：IC AMP CLASS D STER 37W 56HTSSOP
- Series：PurePath Digital™
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Bulk
- Type：Class D
- Output Type：2-Channel (Stereo)
- Max Output Power x Channels @ Load：37W x 2 @ 6Ohm
- Voltage - Supply：16V ~ 25.5V
- Features：Depop, Digital Inputs, Mute, Short-Circuit and Thermal Protection, Shutdown
- Mounting Type：Surface Mount
- Supplier Device Package：56-HTSSOP
- Package / Case：56-PowerTSSOP (0.240", 6.10mm Width)
- Operating Temperature：0°C ~ 70°C (TA)
- Grade：-
- Qualification：-
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Overview
The TAS5122DFDR is a stereo digital audio power amplifier from Texas Instruments, part of the PurePath Digital series. It operates within a supply voltage range of 16V to 25.5V and delivers up to 37W per channel into a 6-ohm load. The device utilizes a 56-pin HTSSOP package with an exposed pad for thermal management. Key electrical parameters include a maximum output power of 37W x 2 @ 6 ohms and an operating temperature range of 0°C to 70°C.
Feature Summary
- Supports digital audio inputs for direct integration with digital signal processors or codecs.
- Integrates pop-and-click suppression to minimize audible transients during power-up and shutdown sequences.
- Includes comprehensive protection mechanisms such as short-circuit, thermal overload, and under-voltage lockout.
- Features a shutdown mode to significantly reduce power consumption when the system is inactive.
Applications
- Home theater systems
- Soundbars and media consoles
- Professional audio amplifiers
- Active loudspeaker systems
Procurement Notes
Verify component authenticity through authorized channels due to obsolete status. Confirm RoHS3 compliance and moisture sensitivity level (MSL 3) requirements for surface-mount assembly processes. Ensure proper thermal design for the 56-HTSSOP package to maintain reliability within the specified operating temperature range.
Selection Notes
Select this component for applications requiring high-efficiency Class D amplification with digital interfaces. Consider the 56-pin form factor for board space constraints. Evaluate thermal dissipation needs given the 37W per channel capability at 6-ohm loads. Verify compatibility with existing digital audio protocols before finalizing the design.
Part Context
The TAS5122 belongs to Texas Instruments' PurePath Digital portfolio, designed for high-performance audio solutions. It integrates the digital input stage, DSP processing, and Class D power stage into a single IC. This integration reduces external component count and simplifies the design of complex audio systems compared to discrete solutions.
Replacement Considerations
The datasheet indicates the TAS5122DFDR is obsolete. Potential substitutes may include other members of the TAS51xx family or newer generations of TI digital audio amplifiers. Verify pin compatibility and thermal performance when considering alternatives.
