Overview
The TDA7563AH is a high-efficiency, quad-bridge power amplifier designed by STMicroelectronics, 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. The device is available in Flexiwatt27 and PowerSO36 packages, making it versatile for various automotive audio systems. Its superior efficiency reduces the dissipated output power by up to 50% compared to conventional class AB solutions, simplifying thermal management in high-power setups. The TDA7563AH also includes a comprehensive diagnostics array that communicates the status of each speaker via the I2C bus.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Supply Voltage | 8 - 18 | V |
| Peak Supply Voltage (for t = 50 ms) | 50 | V |
| Output Power (VS = 14.4 V, 1 kHz, 10% THD, 4 Ω) | 4 x 28 W | W |
| Maximum Output Power (VS = 15.2 V, 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 |
| Output Peak Current (not repetitive, t = 100 ms) | 8 | A |
| Output Peak Current (repetitive, f > 10 Hz) | 6 | A |
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 (for low noise line output function)
- High efficiency enable/disable
- 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 TDA7563AH is specifically designed for car radio applications, making it an ideal choice for automotive audio systems. Its high efficiency, low distortion, and comprehensive diagnostics features make it suitable for a variety of in-car entertainment systems.
Q & A
- What is the TDA7563AH used for?
The TDA7563AH is used for car radio applications, providing high-efficiency power amplification.
- What type of technology does the TDA7563AH use?
The TDA7563AH uses Multipower BCD (Bipolar, CMOS, DMOS) technology.
- What are the key benefits of the TDA7563AH's DMOS output stage?
The DMOS output stage ensures very low distortion and a clear, powerful sound.
- What is the maximum output power of the TDA7563AH?
The maximum output power is 4 x 72 W at 2 Ω.
- Does the TDA7563AH have built-in diagnostics?
Yes, it includes a full diagnostics array that communicates the status of each speaker via the I2C bus.
- What types of fault protection does the TDA7563AH offer?
The device offers full fault protection, including DC offset detection, four independent short circuit protection, and clipping detector pin with selectable threshold.
- What is the operating temperature range of the TDA7563AH?
The storage and junction temperature range is -55 to 150 °C.
- Does the TDA7563AH support I2C bus driving?
Yes, it supports full I2C bus driving with features like standby, independent front/rear soft play/mute, and selectable gain.
- What is the thermal resistance junction-to-case of the TDA7563AH?
The thermal resistance junction-to-case is 1 °C/W.
- Does the TDA7563AH have ESD protection?
Yes, it includes ESD protection.
