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HomeProductsIntegrated Circuits (ICs)Linear - Amplifiers - AudioTAS5766MRMTT
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TAS5766MRMTT - Texas Instruments

Manufacturer Part Number
TAS5766MRMTT
Manufacturer
Texas Instruments
Allelco Part Number
98D-TAS5766MRMTT
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
40,098 pcs available, New & Original
Parts Description
IC AMP CLASS D STEREO 48VQFN
Package
48-VQFN (7x5)
Data sheet
TAS5766MRMTT.pdf

PCN Design/Specification

TAS5766M/68M DS Update 17/Oct/2018.pdf
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 40098
  • Unit Price: $6.119
  • Subtotal: $0.00

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Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity Unit Price Ext. Price
1+ $6.119 $6.12
250+ $2.368 $592.00
500+ $2.285 $1,142.50
1000+ $2.244 $2,244.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

TAS5766MRMTT Tech Specifications
Texas Instruments - TAS5766MRMTT technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TAS5766MRMTT

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Supply 3V ~ 3.6V
Type Class D
Supplier Device Package 48-VQFN (7x5)
Series PurePath™
Package / Case 48-VFQFN Exposed Pad
Package Tape & Reel (TR)
Product Attribute Attribute Value
Output Type 2-Channel (Stereo)
Operating Temperature -25°C ~ 85°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

Frequently Asked Questions(FAQ)

What are the thermal considerations when designing the TAS5766MRMTT into a compact 48-VQFN package?
The TAS5766MRMTT is housed in a 48-VFQFN exposed pad package, which requires an adequate PCB thermal pad design to dissipate heat effectively. Since the device operates with a supply voltage range of 3V to 3.6V and delivers Class D efficiency, internal power dissipation is relatively low but still sensitive to ambient conditions. To maintain junction temperature within safe limits—especially under continuous operation near 85°C ambient—engineers should design at least a 4-layer board with multiple thermal vias under the exposed pad connected to internal ground planes. Without sufficient thermal relief, thermal shutdown or long-term reliability degradation may occur, particularly in enclosed or high-temperature environments.
How does the TAS5766MRMTT handle pop and click noise during power-up and shutdown sequences?
The TAS5766MRMTT includes integrated depop circuitry specifically designed to minimize audible transients during power cycling. This feature controls the biasing sequence of internal nodes and output stages to prevent abrupt voltage steps that cause "pop" sounds common in Class D amplifiers. For optimal performance, it is recommended to ensure a stable, monotonic power ramp and to use proper input coupling capacitors in line with typical PurePath™ design practices. The effectiveness of this system also depends on external mute timing and ramp control through GPIO or I2C configuration.
Can the TAS5766MRMTT be used in single-ended input configurations, and what are the implications for noise performance?
The TAS5766MRMTT supports differential inputs by design, but can accept single-ended signals with appropriate AC coupling and biasing to the common-mode voltage level specified in the datasheet. However, using single-ended inputs may degrade common-mode rejection and increase susceptibility to board-level EMI, especially in noisy digital environments. To maintain signal integrity, designers should route input traces away from switching nodes and use tight PCB layouts with ground shielding. The loss in noise immunity is more pronounced in high-gain configurations.
What are the advantages of TAS5766MRMTT over older Class D amplifiers in space-constrained audio applications?
The TAS5766MRMTT offers a balanced combination of integration, small footprint, and modern protection features compared to earlier discrete or larger-package Class D solutions. Its 7x5mm 48-VQFN surface-mount package enables high-density layouts, while on-chip short-circuit protection and depop functionality reduce the need for external protection components. Additionally, as part of Texas Instruments’ PurePath™ series, it supports advanced modulation schemes that minimize EMI without sacrificing audio fidelity—critical in portable and embedded systems where both size and electromagnetic compliance are constraints.
How does the supply voltage range of 3V–3.6V affect the output power capability of the TAS5766MRMTT in battery-powered designs?
The TAS5766MRMTT is optimized for low-voltage operation, making it suitable for battery-powered applications such as portable speakers or wireless audio modules. At 3.6V, the maximum rail-to-rail output swing is limited, which directly constrains RMS output power into typical 4Ω or 8Ω loads. While exact power figures depend on external filtering and modulation settings, users should expect output in the hundreds of milliwatts range rather than watts. This makes the device ideal for near-field audio where high volume isn’t required, but efficiency and thermal management are priorities.
What PCB layout practices are recommended for minimizing EMI when using the TAS5766MRMTT in a stereo Class D amplifier design?
Due to the high-frequency switching inherent in Class D operation, careful PCB layout is essential when integrating the TAS5766MRMTT. Key practices include minimizing the loop area of output H-bridge traces, placing LC output filters as close as possible to the IC, and using ground planes to shield sensitive control lines. The 48-VQFN package allows for symmetrical routing of both stereo channels, which helps balance EMI emissions. Additionally, routing I2C and control signals beneath the device or away from switching nodes reduces coupling risks. Following TI’s recommended layout guidelines in the datasheet significantly improves EMC performance.
How does the TAS5766MRMTT compare to the TAS5756M in terms of channel count and modulation flexibility?
Both the TAS5766MRMTT and TAS5756M are part of Texas Instruments’ PurePath™ Class D amplifier family and use similar modulation architectures, but differ in channel configuration and integration level. The TAS5766MRMTT is a stereo (2-channel) device in a 48-VQFN package, supporting independent channel control and advanced fault monitoring. In contrast, the TAS5756M typically offers mono output with higher per-channel power potential. The TAS5766MRMTT provides greater flexibility in multi-driver systems where stereo separation and individual channel diagnostics are needed, such as active speakers or soundbars.
What is the impact of MSL3 rating (168 hours) on the handling and assembly process for the TAS5766MRMTT?
The TAS5766MRMTT carries a Moisture Sensitivity Level 3 designation, meaning it must be used within 168 hours (7 days) of removal from its dry packaging if not stored in controlled humidity conditions. Exceeding this time without baking risks moisture absorption, leading to delamination or "popcorning" during reflow soldering. Manufacturers should implement strict floor-time tracking, use humidity indicator cards, and consider nitrogen storage or dry cabinets when staging the device for SMT assembly. This is especially critical given the fine-pitch leads and exposed thermal pad of the 48-VQFN package.
Is the TAS5766MRMTT suitable for automotive infotainment systems operating under variable temperature conditions?
While the TAS5766MRMTT operates over a temperature range of -25°C to 85°C, typical automotive cabin environments can exceed 85°C, particularly in passive sun-exposed locations. This makes the device better suited for non-critical audio zones such as rear-seat displays or aftermarket accessories rather than head units or primary audio hubs. Additionally, TI offers automotive-qualified variants with extended temperature support; the TAS5766MRMTT, as a commercial-grade IC, lacks AEC-Q100 certification, limiting its use in safety- or reliability-critical vehicle subsystems.
What role does short-circuit protection play in improving system reliability with the TAS5766MRMTT?
Short-circuit protection in the TAS5766MRMTT monitors output pins for abnormal current draw and automatically disables the affected channel to prevent damage from wiring faults or speaker failures. This feature is vital in consumer and industrial systems where speaker impedance may vary or cables can become damaged. The protection circuitry responds rapidly to overcurrent events and can be reset via the I2C interface or power cycle, reducing field failure rates. However, sustained exposure to faulty loads—even with protection active—can lead to thermal accumulation due to repeated shutdown cycles.
How does the TAS5766MRMTT interface with digital audio sources, and what are the clocking requirements?
The TAS5766MRMTT interfaces with digital audio through standard serial data formats like I2S, left-justified, or TDM modes, supporting multiple sample rates up to 96 kHz. It requires an external master clock (MCLK), typically 256× or 384× the LRCLK rate, which must be stable and low-jitter to maintain signal-to-noise performance. The device integrates PLLs for clock synthesis, but poor MCLK integrity can result in increased phase noise and audible distortion. Designers should source MCLK from low-phase-noise oscillators and avoid sharing clock lines with noisy digital peripherals.
How does the TAS5766MRMTT compare to discrete MOSFET-based Class D stages in terms of efficiency and board space?
Compared to discrete MOSFET-based Class D amplifiers, the TAS5766MRMTT achieves higher integration and consistent switching behavior due to monolithic control and protection circuitry. This results in better efficiency matching across both stereo channels and reduced board area—especially when considering gate drivers, biasing, and protection circuits required in discrete designs. While discrete solutions can scale to higher power, they introduce variability in component selection and thermal management complexity. For sub-watt to mid-power audio, the TAS5766MRMTT provides a more predictable and compact solution.
What are the implications of using the TAS5766MRMTT without an output LC filter?
Operating the TAS5766MRMTT without an output LC filter is not recommended, as the filter is essential for reconstructing the PWM-switched signal into an analog audio waveform and suppressing high-frequency switching noise. Without filtering, radiated EMI can exceed regulatory limits (e.g., FCC, CE), and speaker voice coils may overheat due to high-frequency current components. Additionally, downstream ADCs or recording circuits might capture switching artifacts. The filter also prevents resonance with speaker inductance; omitting it risks instabilities or frequency response anomalies.
What debug and configuration capabilities does the I2C interface provide for the TAS5766MRMTT in production testing?
The TAS5766MRMTT includes an I2C interface that enables real-time monitoring of fault conditions (e.g., overtemperature, overcurrent), adjustable volume control, channel muting, and soft-start configuration. During production testing, this allows automated verification of amplifier functionality, detection of assembly errors (like solder bridges), and calibration of audio levels. Engineers can also read device status registers to confirm proper initialization and detect early signs of stress. Proper pull-up resistors and noise isolation on the I2C lines are required to ensure reliable communication in test and operation.
Why is the operating temperature rating of -25°C to 85°C significant for indoor versus outdoor audio applications using the TAS5766MRMTT?
The TAS5766MRMTT's maximum ambient operating temperature of 85°C limits its use in sealed enclosures exposed to direct sunlight or industrial environments where passive heating occurs. While acceptable for indoor consumer electronics like Bluetooth speakers or smart displays, outdoor installations may see ambient temperatures exceeding the upper range, risking thermal throttling or shutdown. Combined with self-heating from switching losses, even moderate audio loads can push internal temperature beyond safe margins without active cooling. Designers must model worst-case thermal scenarios to ensure reliability.
How does the 48-VQFN (7x5) package of the TAS5766MRMTT influence rework and inspection during manufacturing?
The 48-VQFN package with an exposed thermal pad presents challenges in rework due to uneven heating and potential solder joint voiding under the central pad. Standard reflow profiles must be precisely controlled to ensure complete solder wetting while avoiding tombstoning of peripheral leads. Post-assembly, X-ray inspection is often necessary to verify under-pad connectivity and detect opens or voids. Rework requires specialized nozzles and preheating to avoid thermal shock. Despite these challenges, the package supports high I/O density and efficient thermal transfer, making it suitable for automated SMT lines with proper process control.
What design trade-offs arise from the low supply voltage (3V–3.6V) of the TAS5766MRMTT compared to higher-voltage Class D amplifiers?
The 3V–3.6V supply range of the TAS5766MRMTT prioritizes compatibility with battery-powered and low-voltage logic systems, but inherently limits peak output power and dynamic range. Higher-voltage amplifiers can drive louder audio into standard 4Ω or 8Ω speakers without compression, while the TAS5766MRMTT is better suited for applications where headroom requirements are modest. This makes it a strong candidate for portable devices where power efficiency and thermal performance are more critical than maximum volume. Designers must balance audio performance expectations against battery life and system size.
How does the absence of a defined "Max Output Power x Channels @ Load" parameter in the datasheet affect system-level audio performance prediction for the TAS5766MRMTT?
The lack of a standardized maximum power rating in the TAS5766MRMTT's description means engineers must derive expected output levels from fundamental parameters: supply voltage, load impedance, duty cycle limits, and THD thresholds. For example, at 3.6V into 4Ω with 10% THD, output might approach 0.8W per channel before clipping, but continuous RMS will be lower. System designers should simulate performance using TI’s design tools and validate with actual load testing under realistic conditions, as actual output depends heavily on thermal design, modulation scheme, and power source stability.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TAS5766MRMTT

Product Attribute TAS5766MRMTR TAS5768MRMTR TAS5764LRSMT TAS5766MDCAR
Part Number TAS5766MRMTR TAS5768MRMTR TAS5764LRSMT TAS5766MDCAR
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Max Output Power x Channels @ Load - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Series - - - -
Features - - - Simultaneous Sampling
Type - - - -
Voltage - Supply - - - -
Output Type - Current - Unbuffered Voltage - Buffered -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Mounting Type - Surface Mount Through Hole Surface Mount
Package - Tape & Reel (TR) Tube Tape & Reel (TR)

TAS5766MRMTT Datasheet PDF

Download TAS5766MRMTT pdf datasheets and Texas Instruments documentation for TAS5766MRMTT - Texas Instruments.

PCN Design/Specification
TAS5766M/68M DS Update 17/Oct/2018.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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Texas Instruments

TAS5766MRMTT

Texas Instruments
98D-TAS5766MRMTT

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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