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TAS5755M
  • TAS5755M
  • TAS5755M

TAS5755M

ACTIVE

50-W stereo, 100-W mono, 8- to 26.4-V, digital input open loop Class-D audio amplifier w/ 2.1 mode

Texas Instruments TAS5755M Product Info

1 April 2026 4

Parameters

Audio input type

Digital Input

Architecture

Class-D

Speaker channels (max)

3

Control interface

I2C, Software

Output power (W)

50

Power stage supply (max) (V)

26.4

Power stage supply (min) (V)

8

RDS(on) (Ω)

0.08

THD + N at 1 kHz (%)

0.05

Load (min) (Ω)

4

Analog supply voltage (min) (V)

3

Analog supply voltage (max) (V)

3.6

Rating

Catalog

Operating temperature range (°C)

0 to 125

Package

HTSSOP (DFD)-56-113.4 mm² 14 x 8.1

Features

  • Reduced Sol
    • Single-chip 2.1, 2.0 and Mono Mode Capable
    • Single-filter in Mono (PBTL) Mode.
    • Pad-up Package and 80 mΩ RDSON Enhances Thermal Performance
  • High Output Power capable:
    • 2 × 19 W +1 × 50 W in 2.1 mode
      (2 × 4 Ω + 1 × 6 Ω, 24 V)
    • 2 × 50 W in 2.0 mode (2 × 6 Ω, 24 V)
    • 1 × 100 W in Mono Mode (1 × 2 Ω, 24 V)
    • Wide Voltage Range: 8 V to 26.4 V
  • Audio Performance Audio:
    • THD+N ≤ 0.05% at 1 kHz (RSPK = 8 Ω, POUT = 1 W, PVDD = 18 V)
    • ICN ≤ 50 µVRMS
    • Crosstalk ≤ - 67 dB
    • SNR ≥ 104 dB
    • BD Modulation Available, for Improved Audio Performance and Efficiency.
  • Integrated Audio Processing:
    • 2 × 8 + 1 × 2 Biquads
    • Two-band + Single-band configurable Dynamic Range Control (DRC)
    • License-Free 3D Effects
    • Signal Mixing and DC blocking filter
    • Automatic Rate Detection
  • Integrated Self-protection
    • Thermal Protection
    • Over-current Limit Protection
    • Under-voltage Protection
  • Reduced Sol
    • Single-chip 2.1, 2.0 and Mono Mode Capable
    • Single-filter in Mono (PBTL) Mode.
    • Pad-up Package and 80 mΩ RDSON Enhances Thermal Performance
  • High Output Power capable:
    • 2 × 19 W +1 × 50 W in 2.1 mode
      (2 × 4 Ω + 1 × 6 Ω, 24 V)
    • 2 × 50 W in 2.0 mode (2 × 6 Ω, 24 V)
    • 1 × 100 W in Mono Mode (1 × 2 Ω, 24 V)
    • Wide Voltage Range: 8 V to 26.4 V
  • Audio Performance Audio:
    • THD+N ≤ 0.05% at 1 kHz (RSPK = 8 Ω, POUT = 1 W, PVDD = 18 V)
    • ICN ≤ 50 µVRMS
    • Crosstalk ≤ - 67 dB
    • SNR ≥ 104 dB
    • BD Modulation Available, for Improved Audio Performance and Efficiency.
  • Integrated Audio Processing:
    • 2 × 8 + 1 × 2 Biquads
    • Two-band + Single-band configurable Dynamic Range Control (DRC)
    • License-Free 3D Effects
    • Signal Mixing and DC blocking filter
    • Automatic Rate Detection
  • Integrated Self-protection
    • Thermal Protection
    • Over-current Limit Protection
    • Under-voltage Protection

Description

The TAS5755M is a single-chip flexible digital audio solution with integrated processing that supports 2.1 (2 speakers + subwoofer), 2.0 or stereo (2 speakers) and mono (high power speaker) modes.

Its high efficiency, low 80 mΩ RDSON and pad-up package allows the device to output up to 2 × 50 W or 1 × 100 W.

TAS5755M leverages 2 full H-bridges which are used for each channel in stereo mode. In 2.1 mode, TAS5755M runs 2 independent speaker channels using 2 half-bridges while using a full-bridge to drive a subwoofer. Finally, in mono mode, TAS5755M supports pre-filter parallel bridge tied load (PBTL) using only one filter stage to reduce total system size and cost.

TAS5755M has integrated audio processing. It includes: signal mixing, DC blocking filters, 2 × 8 + 1 × 2 biquads for equalization. Power limiting is implemented by leveraging a two-band log-style DRC and a separate single-band DRC for the subwoofer channel.

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