HT8691 integrates a boost converter with a filter-less stereo class D audio power amplifier to provide 5.5W continuous power into a into a 4Ω speaker when operating from a Li-battery voltage boosted to 6.5V. Meanwhile, the boost output voltage is adjustable.
Function: 5.5W Anti-Clipping Mono Class D Audio Amplifier with Boost Converter
Package: SOP8L-PP Pin type
Manufacturer: Jiaxing Heroic Technology
Image
Description
HT8691 features Anti-Clipping Function (ACF) which detects output signal clip due to the over input signal and suppresses the output signal clip automatically. Also, the ACF function can adapt the output clip caused by power supply voltage down with battery. It can significantly improve the sound quality, creating a very comfortable musical enjoyment, and to protect the speakers from overload damage. It also supplies ACF OFF mode.
Features
・Anti-Clipping Function (ACF)
・Filter-less Modulation, Eliminating Output Filter
・Output Power
(1) 5.5W (VBAT=4.2V, PVDD = 6.5V, RL=4Ω, THD+N=10%)
(2) 3.0W (VBAT=4.2V, PVDD = 6.5V, RL=8Ω, THD+N=10%)
・Power Supply
(1) Boost Input VBAT：2.5V to 5.5V
(2) Boost Output PVDD：VBAT to 7.0V
・Adjustable BOOST Output Voltage
・Class AB / Class D
・Over Current Protection, Thermal Protection, Low volta
Pinout
Applications
1. Bluetooth Speakers, Portable Speakers
2. 2.1 Channel Speakers, Megaphone
3. iphone/ipod/ipod docking, MP4/GPS
4. Tablet PC/Note Book, Smart Phones
5. LCD TV/Monitor, Portable Gamers
HT8691 Datasheet
Posts related to the search results for ‘Audio Amplifier‘
| Part number | Description |
| STK404-130S | STK404-130S Pinout – Audio Amplifier |
| PAM8403 | 3W, Stereo Audio Amplifier – PAM |
| TDA2030 | 14W Hi-Fi Audio Amplifier – ST |
| OB6220VP | Audio Amplifier IC ( TSSOP-28Pin ) |
| TDA2010 | 12W, Hi-Fi Audio Amplifier – SGS |
| AN17807A | Audio Amplifier, SIP 12 |
| STK432-070 | STK432-070 PDF – Audio Amplifier, SIP 15 – STK432070 |
| SA58672 | 3W, Audio Amplifier ( PDF ) |
| TDA2003 | 10W Car Radio Audio Amplifier |
| CS8563S | 4.5WX2, 2-Channel Audio Amplifier |