HT3286 Overview
HT3286 is a stereo efficient, Class-D audio amplifier for driving speakers up to 50W/4 Ω in mono PBTL. It can also deliver 2×33W/8Ω power in stereo BTL. Advanced EMI Suppression with Spread Spectrum Control enables the use of inexpensive ferrite bead filters while meeting EMC requirements for system cost reduction.
HT3286 Key Features
- Output Power (BTL) 2×20W (VDD=14.5V, RL=4Ω, THD+N=1%) 2×33W (VDD=22V, RL=8Ω, THD+N=10%)
- Output Power (PBTL) 50W (VDD=22V, RL=4Ω, THD+N=1%)
- Single Wide Voltage Supply: 4.5V-22V
- Selectable Work Mode: BD or 1SPW
- MUTE and Shutdown function available
- Efficiency > 90%
- Differential / Single-ended Analog Input, BTL or PBTL Output
- Selectable Gain: 32dB or 17.6dB
- Integrated Self-protection Circuits Including Overvoltage, Undervoltage, Overtemperature, DCdetect, and Overcurrent with
- LF and HF Package of ETSSOP28