TDA7052A Amplifier Circuit, Replacement, Datasheet, Pinout
Update Time: Aug 25, 2023 Readership: 599
Contents
The UTC TDA7052A is a versatile mono Bridge-Tied Load (BTL) output amplifier that incorporates DC volume control. Its design makes it particularly well-suited for integration into television sets, monitors, portable recorders, and radios. The inclusion of a Missing Current Limiter (MCL) within the IC enhances its safety and performance.
The Bridge-Tied Load configuration is utilized to maximize the power output to a load, typically a loudspeaker or headphones, by driving both sides of the load in a push-pull manner. This results in improved efficiency and reduced distortion compared to a single-ended configuration.
The built-in DC volume control allows for seamless adjustment of the audio output level. This feature is crucial in applications like TVs, monitors, and radios, where users need to control the audio volume without introducing any unwanted artifacts or noise.
One of the standout features of the UTC TDA7052A is its integrated Missing Current Limiter (MCL). This protection mechanism is activated when the current difference between the positive (OUT+) and negative (OUT-) output terminals exceeds a specified threshold, which is typically 100mA (with a typical tolerance of 300mA). This innovative feature ensures the safety and reliability of the amplifier and connected devices, particularly in situations where the load might be compromised or short-circuited.
The MCL serves a dual purpose. First, it helps prevent excessive current from flowing through the amplifier, which could lead to overheating and potentially damage the IC or connected components. Second, it guards against scenarios where the load might be disconnected or malfunctioning, reducing the risk of damage to the amplifier or the connected speakers or headphones.
The chosen threshold of 100mA makes the UTC TDA7052A particularly well-suited for headphone applications that are single-ended, meaning they use only one side of the output (OUT+ or OUT-). This level of current protection ensures that even if the headphones experience a short circuit or other issues, the amplifier's MCL will intervene before any significant damage can occur. This makes it a reliable choice for personal audio devices where user safety and equipment protection are paramount.
TDA7052A Amplifier Circuit
TDA7052A Replacement / Equivalent
|
Part |
Manufacturer |
Application |
Definition |
|
TDA7052 |
UTC |
battery-fed portable audio applications |
a mono output amplifier in a 8-lead dual-in-line (DIL) plastic package |
|
TDA7052B |
UTC |
TV and monitors/ battery-fed portable recorders and radios |
1 W and 0.5 W mono Bridge-Tied Load (BTL) output amplifiers with DC volume control |
|
TDA7056A |
UTC |
TV and monitors/ battery-fed portable recorders and radios |
a mono BTL output amplifier with DC volume control |
|
TDA7057AQ |
UTC |
TVs and monitors/ battery-fed portable recorders and radios |
2x8W, Stereo BTL Audio Output Amplifier |
|
LM386 |
low-power audio amplification |
analog input Class-AB audio amplifier |
|
|
MAX98306 |
Maxim |
portable applications |
Stereo 3.7W Class D Amplifier |
|
PAM8403 |
Diodes Inc. |
Stereo Class D Audio Power Amplifier |
portable and mobile applications operating on battery power |
TDA7052A Datasheet
Click TDA7052A Datasheet to get the datasheet.
TDA7052A Pinout
|
Pin |
Pin name |
Description |
|
1 |
VP |
Power Supply |
|
2 |
IN+ |
Signal Input Terminal |
|
3 |
GND1 |
Signal Ground |
|
4 |
VC |
DC Volume Control Terminal |
|
5 |
OUT+ |
Non-inverted Output Terminal |
|
6 |
GND2 |
Power Ground |
|
7 |
NC |
Not Connected |
|
8 |
OUT- |
Inverted Output Terminal |
TDA7052A Block Diagram
TDA7052A Package
DIP8: plastic dual in-line package; 8 leads (300 mil)
SO8: plastic small outline package; 8 leads; body width 3.9 mm
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