專賣hwd,國產ic ,sanken(三肯ic)等系列ic

general description
the hwd4861 is a bridge-connected audio power amplifier
capable of delivering 1.1w of continuous average power to
an 8? load with 1% thd+n using a 5v power supply.
audio power amplifiers were designed specifically to
provide high quality output power with a minimal amount of
external components using surface mount packaging. since
the hwd4861 does not require output coupling capacitors,
bootstrap capacitors, or snubber networks, it is optimally
suited for low-power portable systems.
the hwd4861 features an externally controlled, low-power
consumption shutdown mode, as well as an internal thermal
shutdown protection mechanism.
the unity-gain stable hwd4861 can be configured by external
gain-setting resistors for differential gains of up to 10 without
the use of external compensation components. higher gains
may be achieved with suitable compensation.
key specifications
j thd+n for 1khz at 1w continuous
average output power into 8? 1.0% (max)
j output power at 10% thd+n
at 1khz into 8?
1.5w (typ)
j shutdown current 0.6µa (typ)
features
n no output coupling capacitors, bootstrap capacitors, or
snubber circuits are necessary
n small outline (so) packaging
n compatible with pc power supplies
n thermal shutdown protection circuitry
n unity-gain stable
n external gain configuration capability
applications
n personal computers
n portable consumer products
n self-powered speakers
n toys and games