Overview
The TDA7562 is a multifunction quad power amplifier designed by STMicroelectronics, specifically for car radio applications. It utilizes BCD (Bipolar-CMOS-DMOS) technology and is packaged in the Flexiwatt27V format. This amplifier is notable for its DMOS output stage, which ensures very low distortion and a clear, powerful sound. The device features a comprehensive set of diagnostics and control options via an I2C bus interface, making it highly flexible and reliable for automotive audio systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Supply Voltage | 8 - 18 | V |
| Peak Supply Voltage (for t = 50ms) | 50 | V |
| Output Power (EIAJ, VS = 13.7V, RL = 4Ω, THD = 10%) | 35 | W |
| Output Power (EIAJ, VS = 13.7V, RL = 2Ω, THD = 10%) | 60 | W |
| Total Harmonic Distortion (PO = 1W to 10W, f = 1kHz) | 0.04 - 0.1 | % |
| Total Quiescent Drain Current | 150 - 300 | mA |
| Output Peak Current (not repetitive, t = 100μs) | 8 | A |
| Output Peak Current (repetitive, f > 10Hz) | 6 | A |
| Power Dissipation (Tcase = 70°C) | 85 | W |
| Storage and Junction Temperature | -55 to 150 | °C |
| Thermal Resistance Junction-to-case | 1 | °C/W |
Key Features
- DMOS Power Output Stage: Ensures very low distortion and clear, powerful sound.
- High Output Power Capability: Up to 4x25W/4Ω @ 14.4V, 1kHz, 10% THD, and 4x35W EIAJ.
- Full I2C Bus Driving: Allows for ST-BY, independent front/rear soft play/mute, selectable gain (30dB - 16dB), and digital diagnostics.
- Full Fault Protection: Includes DC offset detection, four independent short circuit protections, and clipping detector pin with selectable threshold (2%/10%).
- ESD Protection: Enhances device reliability.
- Diagnostics and Control: Comprehensive diagnostics via I2C bus, including short to GND, short to VS, and short across the speaker, as well as output offset detection.
Applications
The TDA7562 is specifically designed for car radio applications, making it an ideal choice for automotive audio systems. Its robust features and diagnostics capabilities ensure reliable and high-quality audio performance in various automotive environments.
Q & A
- What is the TDA7562 used for?
The TDA7562 is a multifunction quad power amplifier designed for car radio applications.
- What is the output power capability of the TDA7562?
The TDA7562 can deliver up to 4x25W/4Ω @ 14.4V, 1kHz, 10% THD, and 4x35W EIAJ.
- What type of output stage does the TDA7562 use?
The TDA7562 uses a DMOS output stage, which ensures very low distortion and clear, powerful sound.
- What are the key diagnostic features of the TDA7562?
The TDA7562 features diagnostics for short to GND, short to VS, short across the speaker, and output offset detection, all accessible via the I2C bus.
- How does the TDA7562 handle fault protection?
The device includes full fault protection, including DC offset detection, four independent short circuit protections, and a clipping detector pin with selectable threshold.
- What is the operating temperature range of the TDA7562?
The operating temperature range is -40°C to 105°C.
- What is the supply voltage range for the TDA7562?
The supply voltage range is 8V to 18V.
- Does the TDA7562 support I2C bus communication?
Yes, the TDA7562 supports full I2C bus driving for configuration and diagnostics.
- What type of package does the TDA7562 come in?
The TDA7562 is packaged in the Flexiwatt27V format.
- Is the TDA7562 RoHS compliant?
Yes, the TDA7562 is RoHS compliant and comes in an Ecopack2 package.
