Overview
The TDA2040V, produced by STMicroelectronics, is a monolithic integrated circuit in the Pentawatt® package, designed for use as an audio class-AB amplifier. This device is capable of delivering high-quality audio output with minimal distortion. It typically provides 25 W of output power into a 4 Ω load with a total harmonic distortion (THD) of 0.5% at a supply voltage of ±17 V. The TDA2040V features high output current, very low harmonic and crossover distortion, and includes advanced protection mechanisms such as short-circuit protection and thermal shutdown.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | ±4.5 to ±20 | V |
| Output Power (THD = 0.5%) | 25 W | @ VS = ±17 V, RL = 4 Ω |
| Output Power (THD = 10%) | 30 W | @ VS = ±17 V, RL = 4 Ω |
| Output Peak Current | 4 A | (internally limited) |
| Power Dissipation | 25 W | @ Tcase = 75 °C |
| Thermal Resistance Junction to Case | 3 °C/W | |
| Quiescent Drain Current | 45 to 100 mA | @ VS = ±4.5 V to ±20 V |
| Input Bias Current | 0.3 to 1 μA | @ VS = ±20 V |
| Input Offset Voltage | ±2 to ±20 mV | @ VS = ±20 V |
| Total Harmonic Distortion | 0.08% | @ Po = 0.1 to 10 W, RL = 4 Ω, f = 40 to 15000 Hz |
| Thermal Shutdown Junction Temperature | 145 °C |
Key Features
- Wide-range supply voltage, up to 40 V
- Single or split power supply
- Short-circuit protection to ground
- Thermal shutdown
- High output current and very low harmonic and crossover distortion
- Patented short-circuit protection system to limit dissipated power and keep output transistors within safe operating range
Applications
The TDA2040V is suitable for various audio applications, including:
- Hi-fi audio systems: It can be used in two-way, three-way, or four-way loudspeaker systems with active crossovers to ensure optimal acoustic performance.
- Active loudspeaker systems: It can drive the audio spectrum into multiple bands using active crossovers, providing high-quality sound.
- Amplifier circuits: It can be configured with single or split power supplies and is ideal for building amplifiers with high power output and low distortion.
- Multiway speaker systems and active boxes: It is particularly useful in systems where each loudspeaker is optimized to handle a limited range of frequencies.
Q & A
- What is the typical output power of the TDA2040V? The TDA2040V typically provides 25 W of output power into a 4 Ω load with THD = 0.5% at VS = ±17 V.
- What are the supply voltage ranges for the TDA2040V? The supply voltage range is from ±4.5 V to ±20 V.
- Does the TDA2040V have built-in protection mechanisms? Yes, it includes short-circuit protection to ground and thermal shutdown.
- What is the thermal shutdown junction temperature for the TDA2040V? The thermal shutdown junction temperature is 145 °C.
- Can the TDA2040V be used in multiway speaker systems? Yes, it is suitable for multiway speaker systems and active boxes, providing high-quality sound by driving the audio spectrum into multiple bands.
- What type of power supply can be used with the TDA2040V? The TDA2040V can be used with either single or split power supplies.
- What is the maximum output peak current of the TDA2040V? The maximum output peak current is 4 A (internally limited).
- How does the TDA2040V handle harmonic and crossover distortion? The TDA2040V has very low harmonic and crossover distortion, ensuring high-quality audio output.
- Can the TDA2040V be used in active crossover systems? Yes, it is particularly useful in active crossover systems, providing better performance compared to passive filters.
- What is the quiescent drain current range for the TDA2040V? The quiescent drain current ranges from 45 to 100 mA at supply voltages from ±4.5 V to ±20 V.
