The BD5426EFS is a single-channel, high-efficiency, class-D audio amplifier manufactured by Rohm Semiconductor. It is designed for portable audio devices and other applications where high power efficiency and low distortion are critical. This amplifier features a built-in filterless modulation scheme, which reduces external component count and simplifies design.
Applications
- Audio amplification in portable devices
- Speaker drivers in consumer electronics
- Headphone amplifiers
- Audio output stages in industrial equipment
- Sound reinforcement systems
Features
- High efficiency: Minimizes power consumption and extends battery life.
- Filterless modulation: Reduces external component count and simplifies design.
- Low distortion: Ensures high-quality audio reproduction.
- Overcurrent protection: Protects the amplifier and the speaker from damage.
- Thermal shutdown: Prevents overheating and ensures safe operation.
Benefits
- Extended battery life: Minimizes power consumption in portable devices.
- Simplified design: Reduces external component count and development time.
- High-quality audio: Delivers clear and accurate sound reproduction.
- Robust protection features: Prevents damage from overcurrent and overheating.
- Compact size: Enables smaller and more efficient designs.
Additional Details
The BD5426EFS operates on a supply voltage of 2.5V to 5.5V. It delivers up to 2.5W of output power into a 4Ω load. It is available in a small HTSOP-J8 package. The amplifier utilizes a spread-spectrum clocking scheme to minimize EMI emissions.
