Overview
The TDA2009A is a class AB dual Hi-Fi Audio power amplifier produced by STMicroelectronics. It is assembled in a Multiwatt package, specifically designed for high-quality stereo applications such as Hi-Fi systems and music centers. This amplifier is known for its high output power, high current capability, and built-in protection systems, making it a reliable choice for various audio applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 8 - 28 | V |
| Output Peak Current (repetitive, f ≥ 20 Hz) | 3.5 | A |
| Output Peak Current (non-repetitive, t = 100 µs) | 4.5 | A |
| Power Dissipation at Tcase = 90 °C | 20 | W |
| Storage and Junction Temperature | -40 to +150 | °C |
| Thermal Resistance Junction-case | 3 | °C/W |
| Output Power (each channel) at d = 1%, Vs = 24V, f = 1kHz, RL = 4Ω | 10 | W |
| Output Power (each channel) at d = 1%, Vs = 24V, f = 1kHz, RL = 8Ω | 5 | W |
| Supply Voltage Rejection | 55 | dB |
| Thermal Shut-down Junction Temperature | 145 | °C |
Key Features
- High Output Power: Minimum of 10 + 10W at a distortion factor of 1%.
- High Current Capability: Up to 3.5A.
- AC Short Circuit Protection: The amplifier can withstand accidental short circuits between the output and ground.
- Thermal Overload Protection: Includes thermal shut-down to prevent device damage due to excessive junction temperature.
- Space and Cost-Saving: Very low number of external components and simple mounting thanks to the Multiwatt package.
- Frequency Response: 10Hz to 50kHz (-3dB).
- Distortion: 0.351% at a frequency of 1 kHz.
- Signal-to-Noise Ratio (S/N): More than 75 dBA re. 10W output).
Applications
The TDA2009A is specifically designed for high-quality stereo applications, including:
- Hi-Fi systems
- Music centers
- Two-way amplifiers for stereo music centers
- Bridge amplifiers
- Audio systems requiring high output power and low distortion
Q & A
- What is the TDA2009A?
The TDA2009A is a class AB dual Hi-Fi Audio power amplifier produced by STMicroelectronics.
- What is the output power of the TDA2009A?
The TDA2009A can deliver a minimum of 10 + 10W at a distortion factor of 1% with a 24V supply voltage and 4Ω load.
- What are the key protection features of the TDA2009A?
The amplifier features AC short circuit protection and thermal overload protection.
- What is the frequency response of the TDA2009A?
The frequency response is from 10Hz to 50kHz (-3dB).
- What is the signal-to-noise ratio (S/N) of the TDA2009A?
The S/N ratio is more than 75 dBA re. 10W output.
- What is the thermal shut-down temperature of the TDA2009A?
The thermal shut-down junction temperature is 145°C.
- What is the recommended supply voltage range for the TDA2009A?
The recommended supply voltage range is from 8V to 28V.
- How does the TDA2009A save space and cost?
The TDA2009A requires a very low number of external components and has simple mounting thanks to the Multiwatt package.
- What are some common applications of the TDA2009A?
Common applications include Hi-Fi systems, music centers, two-way amplifiers for stereo music centers, and bridge amplifiers.
- What is the distortion level of the TDA2009A at 1 kHz?
The distortion level is 0.351% at a frequency of 1 kHz.
