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Product Detailed Parameters
- Description：IC AMP AUDIO PWR 2.8W AB 24TSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Type：Class AB
- Output Type：2-Channel (Stereo) with Stereo Headphones
- Max Output Power x Channels @ Load：2.8W x 2 @ 3Ohm
- Voltage - Supply：4.5V ~ 5.5V
- Features：Depop, Differential Inputs, Input Multiplexer, Shutdown, Volume Control
- Mounting Type：Surface Mount
- Supplier Device Package：24-HTSSOP
- Package / Case：24-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Operating Temperature：-
- Grade：-
- Qualification：-
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Overview
The TPA0132PWPG4 is a stereo Class-AB audio power amplifier in a 24-pin PowerPAD TSSOP package. It delivers 2.8 W per channel into 3-ohm loads and operates on a single 4.5 V to 5.5 V supply. Key features include DC volume control with 31 discrete steps from +20 dB to -40 dB, an internal input MUX for line or headphone sources, and PC-Beep support. The device includes depop circuitry and low shutdown current.
Feature Summary
- Integrated DC voltage-controlled volume gain adjustment
- Internal multiplexer for switching between line and headphone inputs
- Depop circuitry to eliminate startup transients
- Bridge-tied load (BTL) and single-ended (SE) output modes
Applications
- PC desktop line-out circuits
- Notebook computer internal speakers
- Portable audio devices
- Headphone amplifiers
Procurement Notes
Verify the G4 suffix indicates lead-free and RoHS compliance status. Confirm the PWP package type matches thermal requirements. Check availability as this component may be discontinued or have limited stock. Ensure the specific revision level meets design specifications.
Selection Notes
Select this part for applications requiring integrated volume control without external resistors. Consider the BTL mode for higher power into low impedance loads. Evaluate thermal performance using the PowerPAD package for heat dissipation. Verify input signal compatibility with differential or single-ended sources.
Part Context
This component belongs to Texas Instruments' TPA01xx series of stereo audio power amplifiers. It is designed for portable and desktop audio applications where board space is limited. The PowerPAD package provides enhanced thermal management compared to standard TSSOP packages.
Replacement Considerations
TPA0132PWP
FAQ
How is the volume controlled?
Volume is controlled via a DC voltage applied to the VOLUME terminal, providing 31 discrete gain steps from +20 dB to -40 dB.
What is the difference between SE and BTL modes?
In BTL mode, both outputs drive the load differentially for higher power. In SE mode, one output drives the load while the other is high-impedance, typically used for headphones.
