Overview
The TDA7575B is a MOSFET dual bridge amplifier specifically designed for car radio applications by STMicroelectronics. It features a DMOS output stage, which ensures very low distortion and a clear, powerful sound. The amplifier is known for its high efficiency, reducing the dissipated output power by up to 50% compared to conventional class AB solutions. This makes it an ideal choice for simplifying thermal management in high-power audio systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Supply Voltage | 18 | V |
| Output Power (4Ω, 14.4V, 1kHz, 10% THD) | 2x28 W | W |
| Maximum Output Power (2Ω) | 2x75 W | W |
| Maximum Output Power (1Ω) | 1x150 W | W |
| Undistorted Power | 84 W | W |
| Package | Flexiwatt27, PowerSO36 (slug up) | |
| Operating Temperature Range | -40 to 150°C | °C |
Key Features
- Multipower BCD technology
- MOSFET output power stage
- DMOS power output
- New high-efficiency (class AB)
- Single-channel 1Ω driving capability
- Full I2C bus driving with 4 address possibilities: Standby, Play/mute, Gain 12/26 dB, Full digital diagnostic (AC and DC loads)
- Possibility to disable the I2C bus
- Differential inputs
- Full fault protection
- DC offset detection
- Two independent short circuit protections
- Diagnostic on clipping detector with selectable threshold (2% / 10%)
- Clipping detector as diagnostic pin when I2C bus is disabled
- Standby/mute pins
- ESD protection
Applications
The TDA7575B is primarily designed for car radio applications, offering high power output and advanced diagnostic features. It is suitable for use in automotive audio systems where high efficiency, low distortion, and robust diagnostic capabilities are essential.
Q & A
- What is the TDA7575B used for?
The TDA7575B is used for car radio applications, providing high power output with low distortion. - What is the maximum output power of the TDA7575B?
The maximum output power is 2x75 W/2Ω and 1x150 W/1Ω. - What is the operating supply voltage of the TDA7575B?
The operating supply voltage is up to 18 V. - Does the TDA7575B support I2C bus communication?
Yes, it supports full I2C bus driving with various address possibilities. - Can the I2C bus be disabled on the TDA7575B?
Yes, the I2C bus can be disabled, and the device can be controlled using standby and mute pins. - What kind of fault protection does the TDA7575B offer?
The TDA7575B offers full fault protection, including DC offset detection and two independent short circuit protections. - What is the package type of the TDA7575B?
The package types are Flexiwatt27 and PowerSO36 (slug up). - What is the operating temperature range of the TDA7575B?
The operating temperature range is -40 to 150°C. - Does the TDA7575B have ESD protection?
Yes, it includes ESD protection. - Can the TDA7575B drive loads down to 1Ω?
Yes, it can drive loads down to 1Ω by paralleling the outputs into a single channel.
