The HT4863MTE is a Class AB/D switchable stereo audio power amplifier from Holtek. It is designed to deliver high-quality audio output while minimizing power consumption. This amplifier is particularly suitable for portable audio devices where battery life is a crucial factor.
Applications:
- Portable media players
- Mobile phones
- Laptop computers
- Tablets
- Bluetooth speakers
Features:
- Class AB/D switchable operation
- High output power: Up to 2.6W per channel into 4Ω (Class D)
- Low THD+N: 0.1% at 1W, 1kHz
- Low quiescent current: 4mA
- Short-circuit protection
- Thermal shutdown protection
- Over-current protection
- Under-voltage lockout (UVLO)
- Available in a compact TSSOP-20 package
Benefits:
- Extended battery life: The Class D operation significantly reduces power consumption, extending the battery life of portable devices.
- High-quality audio: Delivers clear and crisp audio output with low distortion.
- Robust protection: Built-in protection features ensure the amplifier's reliability and prevent damage from various fault conditions.
- Compact size: The small package size makes it suitable for space-constrained applications.
- Ease of use: Simple external component requirements simplify the design process.
Additional Details:
The HT4863MTE features a shutdown mode that further reduces power consumption when the amplifier is not in use. The Class AB mode provides a more traditional amplifier performance, while the Class D mode offers higher efficiency. Switching between the modes allows for optimization of power consumption and audio quality based on the specific application requirements. It operates from a supply voltage range of 2.5V to 5.5V.
