Overview
The TDA7563A is a high-efficiency, Quad Bridge type car radio amplifier developed by STMicroelectronics. It is designed specifically for car radio applications and is available in Flexiwatt27 and PowerSO36 packages. This amplifier features a DMOS output stage, which ensures very low distortion and a clear, powerful sound. The TDA7563A is notable for its superior efficiency, reducing dissipated output power by up to 50% compared to conventional class AB solutions, thereby simplifying thermal management in high-power systems. It also includes a comprehensive diagnostics array that communicates the status of each speaker through the I2C bus.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Supply Voltage | 8 - 18 | V |
| DC Supply Voltage | 28 | V |
| Peak Supply Voltage (t = 50 ms) | 50 | V |
| Output Power (4 Ω, 14.4 V, 1 kHz, 10% THD) | 4 x 28 W | W |
| Maximum Output Power (2 Ω) | 4 x 72 W | W |
| Total Quiescent Drain Current | 170 - 300 | mA |
| Thermal Resistance Junction-to-Case | 1 | °C/W |
| Storage and Junction Temperature | -55 to 150 | °C |
| Power Dissipation (Tcase = 70 °C) | 85 | W |
Key Features
- Multipower BCD technology
- MOSFET output power stage
- DMOS power output
- New high efficiency (class SB)
- Full I2C bus driving: Standby, Independent front/rear soft play/mute, Selectable gain (26 dB / 12 dB)
- I2C bus digital diagnostics (including DC and AC load detection)
- Full fault protection: DC offset detection, Four independent short circuit protection
- Clipping detector pin with selectable threshold (2% / 10%)
- Standby/mute pin
- Linear thermal shutdown with multiple thermal warning
- ESD protection
Applications
The TDA7563A is specifically designed for car radio applications, offering high efficiency and advanced diagnostic features that make it ideal for automotive audio systems. Its high output power capability and low distortion ensure clear and powerful sound, while the integrated diagnostics and protection features enhance reliability and system integrity.
Q & A
- What is the TDA7563A used for?
The TDA7563A is used for car radio applications, providing high-efficiency amplification with advanced diagnostic features.
- What are the key features of the TDA7563A?
The key features include Multipower BCD technology, MOSFET output power stage, DMOS power output, high efficiency (class SB), full I2C bus driving, and comprehensive fault protection.
- What are the output power specifications of the TDA7563A?
The TDA7563A can deliver up to 4 x 28 W at 4 Ω and 14.4 V with 10% THD, and up to 4 x 72 W at 2 Ω.
- How does the TDA7563A manage thermal issues?
The TDA7563A reduces dissipated output power by up to 50% compared to conventional class AB solutions, and it includes linear thermal shutdown with multiple thermal warnings.
- What diagnostic capabilities does the TDA7563A have?
The TDA7563A features a full diagnostics array that communicates the status of each speaker through the I2C bus, including DC and AC load detection, short circuit protection, and DC offset detection.
- What types of protection does the TDA7563A offer?
The TDA7563A offers full fault protection, including DC offset detection, four independent short circuit protections, clipping detector pin with selectable threshold, and ESD protection.
- What are the package options for the TDA7563A?
The TDA7563A is available in Flexiwatt27 (vertical, horizontal, and SMD) and PowerSO36 packages.
- What is the significance of the DMOS output stage in the TDA7563A?
The DMOS output stage ensures very low distortion, allowing for clear and powerful sound.
- How does the TDA7563A handle standby and mute functions?
The TDA7563A includes independent front/rear soft play/mute functions and a standby/mute pin.
- What is the maximum power dissipation of the TDA7563A?
The maximum power dissipation is 85 W at Tcase = 70 °C.
