HT2145 - Heroic

HT2145 Class D Audio Power Amplifier

HT2145 is a low-EMI, Anti-Clipping, filter-less, monaural Class D power amplifier with an output power of 3.4W. It has a high efficiency for mobile applications with Class AB amplifier performance. HT2145 features Anti-Clipping Function (ACF) which detects and suppresses output signal clippings due to the over level inputs of music or voice signa.

Features

Anti-Clipping Function(ACF) Excellent EMI Suppression Performance Optimized PWM Output Stage Eliminating LC Output Filter Maximum Output 2.6 W×1ch (VDD=5.0V, RL=4Ω, THD+N=10%) 0.8 W×1ch (VDD=3.6V, RL=8Ω, THD+N=10%) Efficiency 89% (VDD=5.0V, RL=8Ω, Po=1W) 84% (VDD=3.6V, RL=8Ω, Po=600mW) Excellent Click-Pop Noise Reduction Function High S/N Ratio, 95dB (VDD=3.6V, Av=18dB) Low Shutdown Current, 0.01µA Internal Fixed Gain of 8 V/V (18dB) Over-Current Protection Function Thermal Protection Function Low Voltage Malfunction Prevention Function Pb-Free Packages, 8-pin SOP „ APPLICATIONS Mobile phones,.