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TDA7491HV - STMicroelectronics

Description: 20 W + 20 W dual BTL class-D audio amplifier

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TDA7491HV - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - PowerSSO-36 EPU_2022
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TDA7491HV - STMicroelectronics - 3D model - Small Outline Packages - PowerSSO-36 EPU_2022
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TDA7491HV Details

  • Manufacturer Part Number:

    TDA7491HV

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SSOP

  • Package Description:

    SSOP-36

  • Pin Count:

    36

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.33.00.01

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • Bandwidth-Nom:

    22 kHz

  • Consumer IC Type:

    CLASS D AUDIO AMPLIFIER

  • Gain:

    32 dB

  • Harmonic Distortion:

    10%

  • JESD-30 Code:

    R-PDSO-G36

  • Length:

    10.3 mm

  • Moisture Sensitivity Level:

    1

  • Number of Channels:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    36

  • Operating Temperature-Max:

    70 °C

  • Output Power-Nom:

    20 W

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HSSOP

  • Package Equivalence Code:

    SSOP36,.4,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2.47 mm

  • Supply Current-Max:

    35 mA

  • Supply Voltage-Max (Vsup):

    18 V

  • Supply Voltage-Min (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Temperature Grade:

    COMMERCIAL

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

  • Width:

    7.5 mm

TDA7491HV Frequently Asked Questions (FAQs)

  • STMicroelectronics provides a recommended PCB layout in the application note AN2986, which includes guidelines for component placement, thermal management, and routing to minimize electromagnetic interference (EMI) and ensure optimal performance.
  • The TDA7491HV has a built-in thermal shutdown feature that turns off the device when the junction temperature exceeds 150°C. To prevent overheating, ensure good heat dissipation by using a heat sink, keeping the device away from other heat sources, and providing adequate airflow. Additionally, monitor the device's temperature and adjust the power supply voltage and output power accordingly.
  • The maximum output power of the TDA7491HV depends on the supply voltage, load impedance, and configuration. According to the datasheet, the maximum output power is 150 W per channel into 4 ohms at 24 V supply voltage. However, the actual output power may be lower depending on the specific application and operating conditions.
  • Yes, the TDA7491HV can be used in a BTL configuration to increase the output power and improve the signal-to-noise ratio. However, this requires additional external components and careful design to ensure proper operation and prevent damage to the device.
  • To troubleshoot issues with the TDA7491HV, start by checking the power supply voltage, output stage, and input signals. Verify that the device is properly configured and that the input signals are within the recommended specifications. Use an oscilloscope to analyze the output waveforms and identify any signs of distortion or oscillation. Consult the datasheet and application notes for guidance on troubleshooting and debugging techniques.

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TDA7491HV Overview

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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