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TDA7491P - STMicroelectronics

Description: 2 x 10-watt dual BTL class-D audio amplifier

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TDA7491P - STMicroelectronics - PCB symbol
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TDA7491P - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - PowerSSO-36 EPD dimensions
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TDA7491P Details

  • Manufacturer Part Number:

    TDA7491P

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SSOP

  • Package Description:

    ROHS COMPLIANT, SSOP-36

  • Pin Count:

    36

  • Reach Compliance Code:

    Not Compliant

  • 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

  • JESD-609 Code:

    e3

  • Length:

    10.3 mm

  • Moisture Sensitivity Level:

    3

  • Number of Channels:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    36

  • Operating Temperature-Max:

    70 °C

  • Output Power-Nom:

    10 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

  • Peak Reflow Temperature (Cel):

    260

  • 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 Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    7.5 mm

TDA7491P Frequently Asked Questions (FAQs)

  • STMicroelectronics recommends using a 10uF capacitor in parallel with a 100nF capacitor, both connected between the power supply pins (VP and VN) and the ground pin (GND). This helps to filter out noise and ensure stable operation.
  • The gain of the TDA7491P can be configured by connecting a resistor (Rg) between the gain pin (GAIN) and the ground pin (GND). The gain is calculated as 20 dB + (Rg/1.2 kΩ). For example, a 1 kΩ resistor would set the gain to 26 dB.
  • The maximum power output of the TDA7491P depends on the supply voltage and the load impedance. With a 24V supply and an 8Ω load, the maximum power output is approximately 25W per channel. However, this can be increased to 40W per channel with a 36V supply and a 4Ω load.
  • The TDA7491P has a built-in thermal shutdown feature that turns off the amplifier if the junction temperature exceeds 150°C. To prevent overheating, ensure good airflow around the device, use a heat sink if necessary, and avoid operating the amplifier at maximum power for extended periods.
  • Yes, the TDA7491P can be used in a bridged configuration to increase the power output. However, this requires an external circuit to invert the signal and combine the outputs. STMicroelectronics provides an application note (AN2834) that describes the bridged configuration in detail.

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TDA7491P 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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