Overview
The TDA7576B is a dual bridge power amplifier designed by STMicroelectronics, specifically tailored for 24 V power supply systems. This amplifier is particularly suited for applications in trucks and buses due to its compatibility with 24 V battery operations. It features MOSFET output power stages, which provide high output power capability and excellent distortion performance. The integrated buffer and fully complementary P-channel/N-channel output structure minimize the need for external components and reduce saturation losses.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Voltage | Up to 32 V |
| Operating Temperature | -40°C to 150°C |
| Output Power | 2 x 20 W @ 4 Ω, 1 kHz, 10% THD |
| Max Output Power | 45 W |
| Max Power Dissipation | 85 W |
| Max Supply Current | 130 mA |
| Package | MW 15L |
| RoHS Compliance | Ecopack1 |
Key Features
- Multipower BCD technology
- MOSFET output power stage
- High output power capability
- Minimized external components (no decoupling capacitors, no bootstrap capacitor, no external compensation)
- Internally fixed gain
- Standby and mute functions
- Diagnostic pin for clip detection, short circuit detection, thermal protection, and output DC offset detection
- Protections: 60 V load dump, overrating chip temperature, output short circuit protection (to GND, Vcc and across the load)
- ESD protection
Applications
The TDA7576B is primarily designed for automotive audio systems, particularly in trucks and buses. It is compatible with 24 V power supply systems, making it ideal for heavy vehicle applications. Additionally, it can be used in systems that require high-quality audio with robust protection features, such as those found in start-stop and hybrid engine vehicles.
Q & A
- What is the operating voltage range of the TDA7576B?
The TDA7576B operates up to 32 V. - What is the maximum output power of the TDA7576B?
The maximum output power is 45 W. - What type of output power stages does the TDA7576B use?
The TDA7576B uses MOSFET output power stages. - Does the TDA7576B require external components like decoupling capacitors or bootstrap capacitors?
No, the TDA7576B minimizes the need for these external components. - What diagnostic features are integrated into the TDA7576B?
The TDA7576B includes diagnostic pins for clip detection, short circuit detection, thermal protection, and output DC offset detection. - What protections are built into the TDA7576B?
The protections include 60 V load dump, overrating chip temperature, and output short circuit protection (to GND, Vcc and across the load). - Is the TDA7576B compatible with start-stop and hybrid engine vehicles?
Yes, it is compatible with these types of vehicles. - What is the operating temperature range of the TDA7576B?
The operating temperature range is -40°C to 150°C. - What package type is the TDA7576B available in?
The TDA7576B is available in the MW 15L package. - Is the TDA7576B RoHS compliant?
Yes, the TDA7576B is RoHS compliant (Ecopack1).
