LA4625-E Datasheet, PDF (1/8 Pages) ON Semiconductor – 2-channel 13.5W BTL Audio Power Amplifier

Ordering number : EN6631A
LA4625
Monolithic Linear IC
2-channel 13.5W BTL Audio Power
Amplifier
Overview
The LA4625 is a 2-channel general-purpose BTL audio power amplifier provided in a miniature package. It was designed
for the best possible audio quality and features an extended low band roll-off frequency provided by a newly-developed NF
circuit that does not require an external capacitor. Furthermore, crosstalk, which can cause muddiness in the audio output,
has been significantly reduced by both circuit and wiring pattern improvements. Thus this amplifier can provide powerful
lows and clear highs.
Note that this device is pin compatible with the 20W×2-channel LA4628, and allows end products differentiated by their
power rating to share the same printed circuit board.
Features
• Total output : 13.5W+13.5W (at VCC = 12V, RL = 4Ω, THD = 10%)
• PMPO reference data : 115W×2 (VCC = 20V, RL = 4Ω)
• High-fidelity design (fL < 10Hz, fH = 130kHz)
• Extremely low impulse noise levels
• An arbitrary amplifier startup time can be set up with external components.
• Full complement of built-in protection circuits (includes circuits that protect against shorting to VCC, shorting to ground,
load shorting, overvoltages and excessive temperatures)
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Maximum output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
IO peak
Pd max
Topr
Tstg
Conditions
No signal
Per channel
With an arbitrarily large heat sink
Ratings
Unit
24
V
3.5
A
32.5
W
-20 to +85
°C
-40 to +150
°C
© 2011, SCILLC. All rights reserved.
Jan-2011, Rev. 0
www.onsemi.com
Publication Order Number:
LA4625/D