TPA3255TDDVRQ1

The TPA3255TDDVRQ1 is a Texas Instruments two-channel, high‑efficiency Class‑D audio amplifier designed for consumer audio (stereo speakers, soundbars, AV gear). It uses a filterless Class‑D topology with integrated PWM modulation and differential outputs, and it includes protection features (short‑circuit, overcurrent, overtemperature, undervoltage). It accepts analog inputs (and is used with various gain settings) to drive two speaker channels. The TDDVRQ1 suffix indicates a specific package/revision variant (packaging, reel, and lot information) used by TI. For exact electrical specs, recommended loads, and evaluation boards, consult the TI datasheet and reference designs.

TPA3255TDDVRQ1 features (concise):
- 2-channel high-efficiency Class-D audio amplifier
- Filter-free operation for typical speaker loads (no external LC filter required)
- Input options: analog differential and digital I2S/PCM
- Pop-free startup with automatic mute
- Robust protections: overcurrent, short-circuit, over-temperature, undervoltage
- Thermal shutdown with fault/diagnostic reporting
- Spread-spectrum switching for EMI reduction
- Adjustable gain; easy digital volume control/interface
- Diagnostic/status outputs for fault and health monitoring
- Automotive-grade wide supply range suitable for 12–26 V systems
- Compact DVRQ1 package with good thermal performance

- Pin count: 28 pins (28-pin package).
- Function: TPA3255TDDVRQ1 is a dual-channel (stereo) Class-D audio power amplifier with filterless (BTL) outputs. It accepts differential inputs (IN+/IN- for left and right), provides four speaker outputs (L+, L-, R+, R-), and uses a single PVDD supply with ground pins. It includes bootstrap pins for high-side drive, and control pins for mute, shutdown, and a BYP (bypass) reference. Designed for high-efficiency, multi-room/auto audio applications.

- Manufacturer: Texas Instruments Incorporated (TI).
- What kind of company: A global American semiconductor company that designs and manufactures analog, embedded processing, and other integrated circuits (ICs), including audio amplifiers; headquartered in Dallas, Texas, USA.

Common application areas for the TPA3255TDDVRQ1 include high‑efficiency, compact Class‑D audio systems such as:
- Home theater/AV receivers and soundbars
- Powered speakers (stereo, bookshelf, floorstanding)
- Computer/multimedia and gaming speaker systems
- Portable or wireless/Bluetooth speaker setups
- Karaoke systems and small‑venue audio installations
- Small professional or educational AV and multi‑room audio solutions

VQFN-40 package (7×7 mm) with exposed pad.