Overview
The TDA2003AV, produced by STMicroelectronics, is a 10W car radio audio amplifier designed for high-performance audio applications. It is an improved version of the TDA2002, offering pin-to-pin compatibility and enhanced features. The amplifier is known for its low harmonic and crossover distortion, ensuring high-quality audio output. It also features a minimal number of external components, ease of assembly, and significant cost and space savings.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Peak Supply Voltage (50 ms) | 40 | V |
| DC Supply Voltage | 28 | V |
| Operating Supply Voltage | 18 | V |
| Output Peak Current (Non-Repetitive) | 4.5 | A |
| Output Peak Current (Repetitive) | 3.5 | A |
| Power Dissipation at Tcase = 90 °C | 20 | W |
| Storage and Junction Temperature | -40 to 150 | °C |
| Thermal Resistance Junction-to-Case | 3 | °C/W |
| Output Power (RL = 4 Ω, d = 10%, f = 1 kHz) | 9 | W |
| Input Sensitivity (f = 1 kHz, RL = 4 Ω, Po = 0.5 W) | 14 | mV |
| Frequency Response (-3 dB) | 40 to 15,000 | Hz |
| Distortion (f = 1 kHz, RL = 4 Ω, Po = 0.05 to 4.5 W) | 0.15 | % |
| Input Resistance (f = 1 kHz) | 70 to 150 | kΩ |
| Voltage Gain (Open Loop, f = 1 kHz) | 80 | dB |
| Voltage Gain (Closed Loop, f = 1 kHz, RL = 4 Ω) | 39.3 to 40.3 | dB |
| Efficiency (f = 1 kHz, RL = 4 Ω, Po = 6 W) | 69 | % |
| Supply Voltage Rejection (f = 100 Hz, Vripple = 0.5 V, Rg = 10 kΩ, RL = 4 Ω) | 30 to 36 | dB |
Key Features
- High Output Current: Up to 3.5 A with very low harmonic and crossover distortion.
- Built-in Protection Systems: Includes DC and AC short-circuit protection, thermal limiting circuit, load dump voltage surge protection up to 40 V, and protection diodes for open ground conditions.
- Low Number of External Components: Simplifies the design and reduces the overall cost and space requirements.
- Ease of Assembly: Designed for easy integration into various audio systems.
- High Efficiency: Achieves efficiency of up to 69% at specific operating conditions.
- Wide Operating Temperature Range: Operates from -40°C to 150°C, making it suitable for various environmental conditions.
- Advanced Diagnostics and High-Resolution Audio: Supports high PWM switching frequency and high-resolution audio output.
Applications
The TDA2003AV is primarily designed for car radio audio systems but can also be used in other automotive and industrial audio applications where high-quality audio output and robust protection features are required. It is suitable for:
- Car audio systems
- Automotive entertainment systems
- Industrial audio equipment
- Audio amplifiers requiring high output current and low distortion
Q & A
- What is the maximum output power of the TDA2003AV?
The TDA2003AV can deliver up to 9W of output power with a 4Ω load at 10% distortion and 1 kHz frequency.
- What are the key protection features of the TDA2003AV?
The TDA2003AV includes DC and AC short-circuit protection, thermal limiting circuit, load dump voltage surge protection up to 40 V, and protection diodes for open ground conditions.
- What is the operating supply voltage range of the TDA2003AV?
The operating supply voltage range is from 8 V to 18 V.
- What is the thermal resistance junction-to-case of the TDA2003AV?
The thermal resistance junction-to-case is 3 °C/W).
- Can the TDA2003AV handle inductive loads?
Yes, the TDA2003AV includes a protection diode to allow use with inductive loads, such as driving a coupling transformer for audio modulation).
- What is the frequency response of the TDA2003AV?
The frequency response is from 40 Hz to 15,000 Hz).
- How efficient is the TDA2003AV?
The TDA2003AV achieves an efficiency of up to 69% at specific operating conditions).
- What are the recommended component values for a typical application circuit?
The recommended component values are detailed in the datasheet, including input DC decoupling, ripple rejection, supply bypassing, and output coupling to load).
- Can the TDA2003AV withstand polarity inversion?
Yes, the TDA2003AV can handle high current (up to 5 A) without damage for a longer period than the blow-out time of a quick 1 A fuse).
- What is the storage and junction temperature range of the TDA2003AV?
The storage and junction temperature range is from -40°C to 150°C).
