TAS5352DDV 125W Stereo Class-D Power Stage | Texas Instruments
MPN: TAS5352DDV ✗ End of LifeTAS5352DDV Overview
A digital Class-D audio power amplifier is a power-management IC that switches its output stage rapidly between voltage states to reproduce an audio waveform. Its efficiency is generally higher than that of a conventional linear amplifier because the switching stage dissipates less power when driving a speaker load. Bridge-tied-load operation applies the audio waveform across the two speaker terminals, increasing the available output voltage and power without requiring a physical ground connection at the speaker.
The TAS5352DDV integrates a stereo output stage and a complete on-chip protection system. Its principal output rating is 125 W per channel into a 4 ohm BTL load, while its listed operating supply range is 10.8 V to 13.2 V. The device is specified for low harmonic distortion and low integrated noise, making it suitable for compact high-power audio systems. Its low idle current can also reduce standby dissipation when the associated system power architecture requires low quiescent consumption.
TAS5352 is positioned as a power stage rather than a complete audio input amplifier. A practical system therefore needs a source capable of supplying the appropriate input signal, control or codec circuitry where required, output filtering, and a correctly designed speaker network. The manufacturer documents internal pull-up resistors to 3.3 V on the SD and OTW outputs; external pull-up resistors can provide 5 V logic level compliance where that interface voltage is required.
Typical uses include powered speakers, compact home-theater systems, professional audio equipment, soundbars, subwoofer power modules, and other high-efficiency speaker-drive products. A 10.8 V to 13.2 V supply is particularly compatible with systems organized around a 12 V rail, although final rail limits, startup behavior, current demand, and protection requirements must be evaluated against the complete amplifier design.
Thermal design is central to achieving the 125 W per-channel rating. The exposed-pad HTSSOP construction requires a low-impedance PCB thermal path, adequate copper area, and suitable airflow or enclosure heat transfer. Decoupling capacitors must be placed close to the supply and ground pins, and output-filter layouts must keep high-current switching paths compact. Speaker wiring, connectors, and load selection must also support the intended channel power.
This page consolidates the verified device identity, package information, operating limits, interface details, and drop-in assessment into an engineering-focused reference. It also distinguishes documented functional similarity from true pin-to-pin equivalence, helping designers avoid treating a related part as an automatic replacement without completing a footprint, signal, control, and thermal review.
Drop-in alternatives for TAS5352DDV — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
No drop-in alternatives available for this product.
Request AlternativesTAS5352DDV Maximum Ratings & Electrical Characteristics
| Product Type | Integrated stereo digital amplifier power stage |
| Amplifier Class | Class D |
| Maximum Output Power | 125 W per channel |
| Supported Load Configuration | 4 ohm bridge-tied load (BTL) |
| Operating Supply Voltage Range | 10.8 V to 13.2 V |
| Listed Maximum Voltage | 37 V |
| Channel Configuration | Mono or stereo |
| Package | 44-pin HTSSOP with exposed pad |
| Mounting Type | Surface mount |
| Shutdown Output Logic | Internal pull-up resistor to 3.3 V |
| Over-Temperature Warning Output Logic | Internal pull-up resistor to 3.3 V |
| 5 V Logic Level Compliance | External pull-up resistors required |
| Protection Features | Integrated on-chip protection system |
TAS5352DDV 44-pin htssop with exposed pad Pin Configuration Guide
Pin configuration for TAS5352DDV (44-pin htssop with exposed pad package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for TAS5352DDV.
Refer to the datasheet for full pin configuration.
Typical Applications
TAS5352DDV is suitable for 6 applications: Powered Speaker Power Stage, Compact Home-Theater Amplifier, Subwoofer Amplifier Module, Soundbar Speaker Amplification, Professional Audio Speaker Amplifier, Industrial Audio Announcement System.
Powered Speaker Power Stage
The TAS5352DDV fits a powered-speaker amplifier because it provides up to 125 W per channel into a 4 ohm BTL load from a 10.8 V to 13.2 V supply. It can receive an analog audio signal from a preamplifier or codec and drive the speaker through the output-filter network specified by Texas Instruments. The exposed thermal pad and 44-pin HTSSOP require a carefully designed PCB heat path. Designers should also verify speaker impedance, amplifier gain, protection behavior, and sustained thermal performance before using the device in a continuously operating enclosure.
Recommended
Compact Home-Theater Amplifier
The TAS5352DDV can supply the high-power left and right channels of a compact home-theater receiver or active loudspeaker system. Its Class-D power stage is suited to a 4 ohm BTL load, with each channel rated up to 125 W under the specified conditions. A system designer should account for supply current during peaks, use low-impedance decoupling, and preserve the recommended output-filter layout. The digital power architecture reduces amplifier dissipation relative to a linear stage, but thermal design still limits sustained output in small enclosures.
Recommended
Subwoofer Amplifier Module
The TAS5352DDV is suitable for a dedicated subwoofer module that uses a 4 ohm speaker in a bridge-tied-load configuration. Its output rating supports high-power amplification from a nominal 12 V system, while low idle current is useful when the module includes a low-power standby state. The module still needs proper input gain, crossover filtering, speaker protection, output filtering, and a stable supply. Thermal analysis should cover worst-case continuous bass output because sustained low-frequency energy can keep the power stage active for longer than short music peaks.
Recommended
Soundbar Speaker Amplification
A soundbar can use the TAS5352DDV for compact high-output speaker channels when its 10.8 V to 13.2 V supply range matches the product's internal power budget. The device's 125 W per-channel capability offers substantial output from a Class-D stage, while integrated protection helps manage common speaker and thermal faults. Mechanical restrictions in a soundbar make the exposed-pad PCB layout especially important. Acoustic engineers should confirm real-world speaker impedance, headroom, crossover behavior, and enclosure heat dissipation rather than relying on the nominal amplifier rating alone.
Recommended
Professional Audio Speaker Amplifier
The TAS5352DDV can serve as the power-amplifier section of a professional active-speaker product built around a 12 V supply architecture. Its 4 ohm BTL output stage is relevant to compact stage monitors, installation speakers, and powered columns. The amplifier must be paired with appropriate preamplification and crossover circuitry, while the manufacturer-recommended filter and layout help control switching-related EMI. Robust enclosure cooling and PCB copper are necessary to sustain the 125 W per-channel rating without elevating junction temperature beyond its safe operating limits.
Recommended
Industrial Audio Announcement System
The TAS5352DDV can drive a 4 ohm BTL speaker in an industrial announcement or paging amplifier when the system uses a compatible low-voltage supply. Its integrated protection system is useful in equipment exposed to speaker wiring faults and other abnormal conditions. The design should include input muting, controlled gain, EMI filtering, and a reliable thermal path for the HTSSOP exposed pad. Because the target is a Class-D power stage rather than a complete signal-chain solution, an audio source, voltage amplifier, and system controller must be designed around it.
Recommended
Recommended Products Summary
Engineering reference data for TAS5352DDV — comparison, design guidance, and compliance information.
Selection Guide
Design Notes
Use the exposed thermal pad as the primary heat path from the 44-pin HTSSOP to the PCB. Place the device where copper can spread heat into the board and enclosure without compromising output-filter layout. Do not assume that the package alone can dissipate 125 W per channel; actual thermal performance depends on PCB copper, via arrays, airflow, ambient temperature, load duration, and the difference between supply and output voltage. Validate sustained worst-case operation with thermocouples or thermal imaging.
Place the required input, supply, and output-filter components close to their associated TAS5352DDV pins. Keep the high-current BTL output paths compact, minimize loop area, and route them away from sensitive audio inputs. The SD and OTW outputs include 3.3 V internal pull-ups; add external pull-ups only when the connected logic requires 5 V compliance. Follow the Texas Instruments recommended PCB layout for exposed-pad connections, thermal vias, and copper placement.
Design the 10.8 V to 13.2 V supply path for both average demand and audio transients. Local decoupling must be placed directly beside the supply and ground pins, and the supply must not collapse when the power stage begins delivering high output to a 4 ohm BTL load. Treat the listed 37 V maximum as an absolute device limit rather than a recommended operating voltage, and include suitable input protection after reviewing the manufacturer's electrical characteristics.
The Class-D output stage switches rapidly and can radiate or conduct EMI, particularly through speaker cables. Use the output-filter topology and component values specified by Texas Instruments, maintain compact high-current loops, and provide a stable return path to the power supply. Check radiated emissions and conducted emissions with the finished speaker cable and enclosure because an open bench setup may not reproduce the coupling mechanisms present in the installed product.
Compliance Information
No explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status was identified for this exact ordering code.
