Overview
The TDA7563B, produced by STMicroelectronics, is a multifunction quad power amplifier designed specifically for car radio applications. It utilizes BCD (Bipolar, CMOS, DMOS) technology and features a DMOS output stage, which ensures very low distortion and a clear, powerful sound. This amplifier is available in Flexiwatt27 and PowerSO36 packages, making it versatile for various automotive audio systems. The TDA7563B is known for its high efficiency, particularly in the class SB mode, which reduces the dissipated output power by up to 50% compared to conventional class AB solutions. This makes it an ideal choice for high-power audio systems in vehicles, simplifying thermal management and enhancing overall performance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Supply Voltage (Vop) | 18 | V |
| DC Supply Voltage (VS) | 28 | V |
| Peak Supply Voltage (Vpeak) | 50 | V |
| Output Power (RL = 4 Ω, THD = 10%) | 4 x 28 W | W |
| Output Power (RL = 2 Ω, THD = 10%) | 4 x 50 W | W |
| Output Power (RL = 2 Ω, Max Power) | 4 x 72 W | W |
| Total Quiescent Drain Current | 170 - 300 | mA |
| Thermal Resistance Junction-to-Case (Rth j-case) | 1 | °C/W |
| Storage and Junction Temperature (Tstg, Tj) | -55 to 150 | °C |
| Total Harmonic Distortion (THD) at 1 W to 10 W | 0.03 - 0.15% | % |
| Voltage Gain (GV1) | 29.5 - 30.5 dB | dB |
| Voltage Gain (GV2) | 15.5 - 16.5 dB | dB |
Key Features
- Multipower BCD technology with DMOS output stage for low distortion and high efficiency.
- High output power capability: 4 x 28 W / 4 Ω @ 14.4 V, 1 kHz, 10% THD, and up to 4 x 72 W / 2 Ω.
- Full I2C bus driving for standby, independent front/rear soft play/mute, selectable gain (30 dB / 16 dB), and high efficiency enable/disable.
- I2C bus digital diagnostics including DC and AC load detection.
- Full fault protection, DC offset detection, and four independent short circuit protections.
- Clipping detector pin with selectable threshold (2% / 10%).
- Standby/mute pin and linear thermal shutdown with multiple thermal warnings.
- ESD protection.
Applications
The TDA7563B is specifically designed for car radio and automotive audio systems. Its high efficiency, low distortion, and comprehensive diagnostic features make it an ideal choice for high-power car audio applications. It is particularly suited for systems requiring reliable and efficient amplification with advanced diagnostic capabilities.
Q & A
- What is the TDA7563B used for?
The TDA7563B is used for car radio and automotive audio applications, providing high-power amplification with advanced diagnostic features.
- What are the key benefits of the TDA7563B's BCD technology?
The BCD technology in the TDA7563B offers low distortion, high efficiency, and superior thermal management compared to conventional class AB solutions.
- What is the maximum output power of the TDA7563B?
The maximum output power of the TDA7563B is 4 x 72 W / 2 Ω.
- What diagnostic features does the TDA7563B offer?
The TDA7563B offers full I2C bus digital diagnostics, including DC and AC load detection, DC offset detection, and four independent short circuit protections.
- How does the TDA7563B manage thermal issues?
The TDA7563B features linear thermal shutdown with multiple thermal warnings and a thermal resistance junction-to-case of 1 °C/W, helping to manage thermal issues efficiently.
- What is the standby current of the TDA7563B?
The standby current of the TDA7563B is typically 1 to 10 µA.
- What is the total quiescent drain current of the TDA7563B?
The total quiescent drain current of the TDA7563B is between 170 and 300 mA.
- What are the available packages for the TDA7563B?
The TDA7563B is available in Flexiwatt27 and PowerSO36 packages.
- How does the TDA7563B protect against faults?
The TDA7563B features full fault protection, including short circuit protection, clipping detection, and ESD protection.
- What is the voltage gain range of the TDA7563B?
The voltage gain of the TDA7563B can be set to either 30 dB or 16 dB.
