TDA7851A footprint, schematic symbol and 3D model by STMicroelectronics

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TDA7851A - STMicroelectronics PCB footprint - Other - Other - Flexiwatt27 (vertical)

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Part Number TDA7851A
Manufacturer STMicroelectronics
Pin Count 27
Part Category Integrated Circuit
Package Category Other
Footprint Name Other - Flexiwatt27 (vertical)
Released Date Oct 23, 2018
Last Modified Date Jan 8, 2026 2:31 PM UTC
Pinout / Pin List Click Here (Member Only)

TDA7851A Details

Manufacturer Part Number:
TDA7851A
Brand Name:
STMicroelectronics
Rohs Code:
Yes
Part Life Cycle Code:
Active
Part Package Code:
ZIP
Package Description:
FLEXIWATT-27
Pin Count:
27
Country Of Origin:
Mainland China
ECCN Code:
EAR99
HTS Code:
8542.33.00.01
Factory Lead Time:
20 Weeks
Manufacturer:
STMicroelectronics
YTEOL:
5
Bandwidth-Nom:
20 kHz
Consumer IC Type:
CLASS AB AUDIO AMPLIFIER
Harmonic Distortion:
10%
JESD-30 Code:
R-XZIP-T27
JESD-609 Code:
e3
Length:
29.23 mm
Moisture Sensitivity Level:
3
Number of Channels:
4
Number of Functions:
1
Number of Terminals:
27
Output Power-Nom:
48 W
Package Body Material:
UNSPECIFIED
Package Code:
SZIP
Package Equivalence Code:
ZIP27,.16,.16,40
Package Shape:
RECTANGULAR
Package Style:
IN-LINE, SHRINK PITCH
Peak Reflow Temperature (Cel):
245
Qualification Status:
Not Qualified
Seated Height-Max:
19.37 mm
Supply Current-Max:
300 mA
Supply Voltage-Max (Vsup):
18 V
Supply Voltage-Min (Vsup):
8 V
Surface Mount:
NO
Technology:
BCDMOS
Terminal Finish:
Matte Tin (Sn)
Terminal Form:
THROUGH-HOLE
Terminal Pitch:
1 mm
Terminal Position:
ZIG-ZAG
Time@Peak Reflow Temperature-Max (s):
30
Width:
4.5 mm

TDA7851A Frequently Asked Questions (FAQs)

A good PCB layout for the TDA7851A involves keeping the analog and digital grounds separate, using a star-point grounding system, and placing the device close to the power supply. Additionally, using a 4-layer PCB with a dedicated ground plane can help reduce EMI.
To optimize thermal performance, ensure good airflow around the device, use a heat sink if possible, and avoid blocking the thermal pad on the underside of the package. Also, minimize the power dissipation by optimizing the output stage and using a low-dropout voltage regulator.
When selecting output filter components, consider the desired cutoff frequency, impedance, and attenuation requirements. Choose inductors with low DC resistance and high Q-factor, and capacitors with low ESR and high ripple current capability. Also, ensure the filter components are compatible with the TDA7851A's output current and voltage ratings.
To troubleshoot issues with the TDA7851A, use an oscilloscope to monitor the output voltage and current, and check for signs of oscillation or instability. Verify the input voltage, output load, and component values are within the recommended specifications. Also, check for any layout or PCB issues that may be contributing to the problem.
Operating the TDA7851A at a lower voltage may reduce the output power and efficiency, while operating at a higher voltage may increase the output power but also increase the risk of overheating and reduce the device's lifespan. Always ensure the input voltage is within the recommended range to ensure reliable operation.

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TDA7851A 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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