Product Summary

The LA4663 is a BTL 2-channel power amplifier IC that was developed for ease of use in general audio applications. In addition to providing improvements in a wide range of electrical characteristics, the LA4663 aimsfor improved listenability and an excellent cost-performance ratio. Applications of the LA4663 include: Radio/cassette players with built-in CD/MD players, microcomponent stereo systems, active speakers, electronic musical instruments, and other audio devices.

Parametrics

LA4663 absolute maximum ratings: (1) Maximum supply voltage VCC max: 24V; (2) Maximum output current Io peak, Per channel: 3.5A; (3) Allowable power dissipation Pd max: 37.5W (With an arbitrarily large heat sink) ; (4) Operating temperature Topr: -20 to +75°C; (5) Storage temperature Tstg: -40 to +150°C.

Features

LA4663 features: (1) Wide operating supply voltage range (V op): 5.5 to 22V (Certain conditions may apply.) ; (2) High ripple rejection ratio: 60 dB (typical) ; (3) Power: 16 W×2 (VCC=15V/6Ω) , 13 W×2 (V = 12 V/4Ω), 6.5 W×2 (V=9V/4Ω) ; (4) Built-in signal muting circuit (AC muting) reduces the number of external components and provides muting with minimal switching noise; (5) tartup circuit with a start time of 0.6 to 0.7 seconds. The LA4663 provides distortion-free startup, since output is only generated after the supply voltage reaches the midpoint at power on.

Diagrams

LA4663 Circuit

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LA4663
LA4663
Other

Data Sheet
Negotiable 
Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LA4631-E
LA4631-E
ON Semiconductor
Audio Amplifiers 2-CH POWER AMPLIFIER
Data Sheet
0-1: $1.46
1-25: $1.18
25-100: $1.06
100-250: $0.95
LA4635A
LA4635A
Other

Data Sheet
Negotiable 
LA4635B
LA4635B
Other

Data Sheet
Negotiable 
LA4636
LA4636
Other

Data Sheet
Negotiable 
LA4663
LA4663
Other

Data Sheet
Negotiable 
LA4632
LA4632
Other

Data Sheet
Negotiable