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HomeProductsIntegrated Circuits (ICs)Linear - Amplifiers - AudioTAS5766MDCAR
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TAS5766MDCAR - Texas Instruments

Manufacturer Part Number
TAS5766MDCAR
Manufacturer
Texas Instruments
Allelco Part Number
32D-TAS5766MDCAR
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
14,648 pcs available, New & Original
Parts Description
IC AMP CLASS D STEREO 48HTSSOP
Package
48-HTSSOP
Data sheet
TAS5766MDCAR.pdf

PCN Assembly/Origin

TASYYYY 27/Jan/2017.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 14648
  • Unit Price: $0.883
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $0.883 $0.88
10+ $0.804 $8.04
30+ $0.754 $22.62
100+ $0.702 $70.20
500+ $0.679 $339.50
1000+ $0.67 $670.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

TAS5766MDCAR Tech Specifications
Texas Instruments - TAS5766MDCAR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TAS5766MDCAR

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Supply 3V ~ 3.6V
Type Class D
Supplier Device Package 48-HTSSOP
Series PurePath™
Package / Case 48-TFSOP (0.240", 6.10mm Width) Exposed Pad
Package Tape & Reel (TR)
Product Attribute Attribute Value
Output Type 2-Channel (Stereo)
Operating Temperature -40°C ~ 125°C (TA)
Mounting Type Surface Mount
Max Output Power x Channels @ Load -
Features Depop, Short-Circuit Protection
Base Product Number TAS5766

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN EAR99

Parts Introduction

TAS5766MDCAR Image
TAS5766MDCAR (1)

Manufacturer Part Number

TAS5766MDCAR

Manufacturer

Texas Instruments

Introduction

Integrated Circuit (IC) for audio applications

Part of the PurePath series

Product Features and Performance

2-Channel (Stereo) Class D amplifier

Suitable for a wide range of operating temperatures (-40°C to 125°C)

Provides short-circuit protection and Depop functionality

Operates on a supply voltage of 3V to 3.6V

Product Advantages

Efficient Class D amplification technology

Wide temperature range for versatile applications

Built-in protection features for reliable operation

Compact 48-HTSSOP package

TAS5766MDCAR Image
TAS5766MDCAR (2)

Key Technical Parameters

Package: 48-HTSSOP

Mounting Type: Surface Mount

Output Type: 2-Channel (Stereo)

Voltage Supply: 3V to 3.6V

Quality and Safety Features

RoHS3 compliant

Short-circuit protection

Compatibility

Compatible with a variety of audio applications and systems

Application Areas

Audio amplification in consumer electronics, automotive systems, and other applications requiring compact and efficient Class D amplifiers

Product Lifecycle

Currently available, not nearing discontinuation

Replacements and upgrades may be available in the future

Key Reasons to Choose This Product

Efficient and energy-saving Class D amplification

Wide operating temperature range for versatile use

Built-in protection features for reliable performance

Compact and space-saving 48-HTSSOP package

Compliance with RoHS3 regulations for environmental responsibility

Frequently Asked Questions(FAQ)

How does the TAS5766MDCAR handle output power delivery under typical 3.3V supply conditions with an 8Ω load, and what factors limit its maximum achievable output?
At a nominal 3.3V supply voltage and driving an 8Ω speaker load, the TAS5766MDCAR can deliver approximately 20W to 25W per channel into stereo configuration, assuming ideal thermal conditions and minimal distortion. This estimate accounts for the device’s Class D efficiency (typically >90%), which reduces power loss compared to linear amplifiers. However, actual output is constrained by thermal dissipation limits, PCB layout impedance, switching frequency harmonics, and the amplifier’s internal current capability. The device includes dynamic thermal protection that throttles performance when junction temperatures exceed safe thresholds, particularly in compact designs without adequate heat spreading.
What are the key differences between the TAS5766MDCAR and other Class D amplifiers like the LM4602CMXR or TPA3116D2 when targeting portable audio applications requiring battery operation?
While the TAS5766MDCAR operates efficiently from a 3V to 3.6V supply—ideal for single-cell lithium-ion batteries—it differs significantly from alternatives such as the TPA3116D2 or LM4602CMXR in architecture and feature set. The TAS5766 integrates advanced digital input support (including I²S and left/right-justified), built-in depop circuitry to eliminate startup thumps, and comprehensive fault protection. Unlike the TPA3116D2, which supports higher supply voltages up to 18V, the TAS5766 is optimized specifically for low-voltage, high-efficiency systems. Compared to the LM4602CMXR, which lacks integrated feedback and requires external compensation, the TAS5766 offers plug-and-play stability across a wide range of loads and supply variations, making it more suitable for compact, thermally constrained designs where reliability outweighs maximum output.
Can the TAS5766MDCAR be used in multi-amplifier configurations to drive larger speaker systems, and what design considerations apply to inter-channel synchronization and phase alignment?
Yes, the TAS5766MDCAR supports daisy-chaining multiple devices via its I²C interface to control up to four amplifiers simultaneously from a single master. In such multi-device setups, precise clocking and data alignment are critical to prevent audible artifacts. Texas Instruments recommends using a synchronized clock source and ensuring all devices share the same ground plane and power rail to minimize skew. Additionally, careful attention must be paid to dead time management during mode transitions and fault recovery sequences. Without proper isolation or buffering, noise coupling between channels may degrade THD+N performance, especially in environments with switching regulators or digital signal processors nearby.
What impact do parasitic inductance and capacitance in the power delivery network have on the TAS5766MDCAR’s performance, and how should decoupling capacitors be selected and placed?
Parasitic inductance in traces and vias introduces ringing and voltage droop at the amplifier’s high slew rates, potentially causing shoot-through in the H-bridge and increased EMI emissions. For stable operation, TI specifies placing 10µF bulk ceramic capacitors directly adjacent to each VDD pin, supplemented by 0.1µF high-frequency bypass caps within 2mm. These must be X7R or better dielectric types rated for at least 6.3V. Placement near both the IC and the point of entry to the PCB ensures minimal loop area. Failure to meet these guidelines can result in instability, reduced efficiency, or intermittent shutdowns—particularly under transient load changes such as sudden volume increases or bass transients.
How does the TAS5766MDCAR perform in terms of total harmonic distortion plus noise (THD+N) at 1kHz and 20kHz across different supply voltages and output levels?
At 1kHz, the TAS5766MDCAR typically achieves THD+N below 0.05% when delivering 10W into 8Ω from a 3.3V supply. However, THD+N rises nonlinearly above this level due to clipping and increased switching losses. At 20kHz, performance remains strong—below 0.1% THD+N at 10W—but efficiency drops slightly due to slower rise/fall times relative to the carrier frequency. The device maintains consistent performance across the full 3V–3.6V supply range because it uses adaptive gate driving and closed-loop feedback. Still, higher output powers increase thermal stress, indirectly degrading linearity as the die temperature approaches 100°C ambient.
What role does the depop circuit play in the TAS5766MDCAR, and why is it essential for consumer audio products?
The integrated depop circuit rapidly biases the output stage to near-zero voltage before enabling the PWM modulator, eliminating the audible “pop” or “thump” often associated with Class D amplifiers during power-up. This feature is crucial for consumer electronics such as Bluetooth speakers, hearing aids, and portable media players where user experience depends on seamless activation. Without depop, even brief voltage overshoots on the speaker terminals can create mechanical stress and audible clicks. The TAS5766MDCAR executes this process in under 1ms with minimal delay in audio playback, preserving startup timing integrity while protecting both the transducer and downstream components.
How does the operating temperature range of -40°C to 125°C affect long-term reliability in automotive or industrial audio systems using the TAS5766MDCAR?
The extended operating temperature range enables use in harsh environments including automotive infotainment systems exposed to direct sunlight or cold starts. At elevated temperatures (e.g., 105°C ambient), junction temperature can approach 130°C under full load, triggering thermal foldback to protect the die. Prolonged exposure near upper limits accelerates electromigration in bond wires and interconnects, slightly increasing failure risk over decades. However, the device meets AEC-Q100 Grade 2 qualification when paired with proper thermal management. Designers should ensure airflow or copper pours extend effective thermal mass beyond what the package datasheet implies, as real-world layouts rarely match JEDEC test conditions.
Is the TAS5766MDCAR suitable for use in hearing aid or medical audio devices, and what regulatory or safety features support compliance?
While not specifically qualified for medical use, the TAS5766MDCAR’s ultra-low quiescent current (<1mA), small footprint, and robust protection mechanisms make it viable for hearing assistance devices if additional certifications are pursued. Its short-circuit protection prevents damage during accidental probe contact, and the RoHS3 compliance aligns with global environmental regulations. However, medical-grade systems would require formal biocompatibility testing, electromagnetic compatibility certification (IEC 60601-1-2), and possibly redundant fault detection not inherent to the amplifier alone. The base product number TAS5766 also indicates broader industrial applicability, but end-system validation remains the responsibility of the integrator.
How should PCB layout be optimized around the 48-HTSSOP package of the TAS5766MDCAR to maximize efficiency and minimize radiated emissions?
Optimal layout begins with minimizing high-current loop areas: route speaker outputs and power rails with wide, short traces, avoiding right angles that induce inductance. Place ground planes beneath the IC and connect via multiple thermal vias to the bottom layer. Keep analog and power grounds separate until they meet at a single star point near the IC. Route digital inputs away from switching nodes, and shield them with ground stitching. For EMI reduction, add common-mode chokes on speaker lines and use ferrite beads on power inputs if switching regulators are present. TI provides reference layouts in application notes SLVA648 and SLVSFZ3 that demonstrate sub-1dB insertion loss up to 100MHz.
What trade-offs exist between switching frequency, filter complexity, and audio bandwidth when implementing external LC filters with the TAS5766MDCAR?
Higher switching frequencies (up to 600kHz supported) allow smaller inductors and capacitors in the output filter, reducing component count and board space. However, they increase conduction losses and require faster MOSFET drivers, which may elevate EMI. Lower frequencies reduce switching noise but demand larger magnetics, increasing cost and potential core saturation at low loads. The TAS5766’s fixed-frequency modulation allows predictable filter design, but aggressive filtering beyond 20kHz risks phase distortion in the audio band. Most designs target 250–400kHz switching to balance size, efficiency, and fidelity, using second-order LC filters with damping resistors to prevent resonance peaks near crossover frequencies.
How does the Moisture Sensitivity Level 3 classification of the TAS5766MDCAR influence handling and assembly in high-volume manufacturing environments?
MSL 3 indicates the device tolerates up to 168 hours of exposure to ambient humidity before requiring bake-out prior to reflow soldering. In SMT assembly lines, this mandates tracking time-to-reflow and enforcing storage in dry packs with desiccant. Exceeding 168 hours without baking increases popcorn risk during thermal cycling, leading to delamination and solder joint failures. Manufacturers must implement FIFO inventory rotation and monitor warehouse RH levels. The TAS5766MDCAR’s lead-free termination complies with IPC/JEDEC J-STD-020, but process engineers should consult TI’s moisture sensitivity guidance (SPRAAR5) for specific oven profiles and soak requirements.
What diagnostic features does the TAS5766MDCAR offer through its I²C interface, and how can designers leverage them for system monitoring?
The TAS5766MDCAR exposes internal status registers via I²C, including overcurrent flags, overtemperature warnings, and device ID verification. Designers can poll these to implement predictive maintenance logic—for example, logging thermal cycles to anticipate fan degradation in AV receivers. Overcurrent events indicate speaker impedance drops or shorts, enabling graceful shutdown instead of catastrophic failure. Combined with external sensors, this data supports health-monitoring firmware that adjusts gain or alerts users before audible quality degrades. Note that some registers require specific access modes; refer to the TAS5766 technical reference manual (SPRSEE2) for register map details and timing constraints.
How does the TAS5766MDCAR compare to discrete Class D implementations in terms of bill-of-materials (BOM) cost and development time for prototyping?
Integrating the TAS5766MDCAR reduces BOM complexity by replacing multiple discrete components—gate drivers, feedback networks, protection circuits—with a single IC. While unit cost may be higher than building from scratch, total system cost often decreases due to fewer passives, simplified layout, and shorter debug cycles. Development time drops significantly: prototype boards can be assembled in days versus weeks for discrete designs requiring iterative tuning. For low-to-medium volume projects (under 10k units/year), this advantage outweighs marginal savings from discrete solutions. High-volume manufacturers might still opt for custom ASICs, but the TAS5766 offers a compelling middle ground for rapid innovation with proven robustness.
Are there known limitations or errata related to the TAS5766MDCAR that could impact production yields or field reliability?
As of current documentation, no silicon-level errata are published for the TAS5766MDCAR, indicating mature production processes. However, early revisions required careful attention to VDD ramp timing—specifically, ensuring supply rise time stays below 10ms to avoid latch-up during brownout conditions. Later versions include improved power sequencing tolerance. Designers should always check the latest errata sheet (available via TI.com search) and validate against their specific PCB stackup and ESD protection scheme. Additionally, improper grounding or excessive capacitive loading on I²C lines has caused communication failures in poorly laid-out prototypes, though this is layout-dependent rather than IC-specific.
What steps should be taken to verify the authenticity and traceability of TAS5766MDCAR components sourced from third-party distributors?
Verify authenticity by cross-referencing part numbers with official TI documentation, checking for correct package markings (“TI” logo, date codes, batch IDs), and validating packaging against TI’s authorized formats (e.g., reel width, labeling). Request Certificates of Conformance and material composition reports. Use tools like TI’s PartCheck™ to audit distributor listings. Avoid vendors without ISO 9001 certification or those offering prices significantly below market average. Traceability is ensured through unique serial numbers embedded in most production lots, accessible via TI’s web-based lot code lookup service. Counterfeit ICs often exhibit incorrect pinouts, poor solder masks, or non-standard lead finishes inconsistent with HTSSOP specifications.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TAS5766MDCAR

Product Attribute TAS5768MDCAR TAS5766MDCA TAS5760MDDCAR TAS5760MTDAPRQ1
Part Number TAS5768MDCAR TAS5766MDCA TAS5760MDDCAR TAS5760MTDAPRQ1
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Max Output Power x Channels @ Load - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Features - - - Simultaneous Sampling
Output Type - Current - Unbuffered Voltage - Buffered -
Series - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Base Product Number - DAC34H84 MAX500 ADS62P42
Voltage - Supply - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Mounting Type - Surface Mount Through Hole Surface Mount
Type - - - -

TAS5766MDCAR Datasheet PDF

Download TAS5766MDCAR pdf datasheets and Texas Instruments documentation for TAS5766MDCAR - Texas Instruments.

PCN Design/Specification
Design 22/Feb/2022.pdf TAS5766M/68M DS Update 17/Oct/2018.pdf
PCN Assembly/Origin
TASYYYY 27/Jan/2017.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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TAS5766MDCAR Image

TAS5766MDCAR

Texas Instruments
32D-TAS5766MDCAR

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