Overview
The TDA2003AH is a 10 W car radio audio amplifier produced by STMicroelectronics. This device is designed to provide high output current with very low harmonic and crossover distortion, making it suitable for automotive audio systems. It is pin-to-pin compatible with the TDA2002, offering improved performance and ease of assembly. The TDA2003AH features built-in protection systems, including DC and AC short-circuit protection, thermal limiting circuit, load dump voltage surge protection, and protection diodes for open ground conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Type | 1-Channel (Mono) | |
| Max Output Power x Channels @ Load | 12 W x 1 @ 1.6 Ω | |
| Voltage - Supply | 8 V to 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 | |
| Operating Temperature Range | -40 to +125 °C | |
| Package / Case | Pentawatt (vertical and horizontal) |
Key Features
- High output current up to 3.5 A with very low harmonic and crossover distortion.
- Improved performance over the TDA2002 with pin-to-pin compatibility.
- Very low number of external components required.
- Ease of assembly and cost and space savings.
- Built-in protection systems including 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.
- Ability to handle high current (up to 5 A) without damage in case of polarity inversion.
- Protection diodes for inductive loads and accidental open ground.
Applications
The TDA2003AH is primarily designed for use in automotive audio systems, particularly in car radios. Its robust design and built-in protection features make it suitable for harsh automotive environments. It can also be used in other applications requiring high-quality audio amplification with robust protection against various fault conditions.
Q & A
- What is the maximum output power of the TDA2003AH?
The TDA2003AH can deliver up to 12 W of output power into a 1.6 Ω load.
- What is the operating supply voltage range for the TDA2003AH?
The operating supply voltage range is from 8 V to 18 V.
- What kind of protection does the TDA2003AH offer?
The TDA2003AH offers 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.
- How does the TDA2003AH handle polarity inversion?
The device can handle high current (up to 5 A) without damage in case of polarity inversion.
- What is the thermal resistance junction-to-case for the TDA2003AH?
The thermal resistance junction-to-case is 3 °C/W.
- What is the recommended package type for the TDA2003AH?
The device is available in Pentawatt (vertical and horizontal) packages.
- What is the operating temperature range for the TDA2003AH?
The operating temperature range is from -40 to +125 °C.
- Can the TDA2003AH drive inductive loads?
Yes, the TDA2003AH includes protection diodes to allow use with inductive loads.
- How does the TDA2003AH protect against load dump voltage surges?
The device has a circuit to withstand load dump voltage surges up to 40 V and recommends an LC filter for higher voltage pulses.
- What are the recommended component values for the application circuit?
The recommended component values are provided in the datasheet, including input DC decoupling, ripple rejection, supply bypassing, and output coupling to load.
