LA4725 Datasheet, PDF (1/8 Pages) Sanyo Semicon Device – 2-Channel BTL Power Amplifier 30 W+30 W with Standby Switch for Car Stereos

Ordering number : EN5715A
LA4725
Monolithic Linear IC
2-channel 30W BTL Audio
Amplifier
http://onsemi.com
Overview
The LA4725 is a 2-channel BTL audio power amplifier IC for Car audio. 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.
Features
• Total output (EIAJ power): 30W+30W (at VCC = 14.4V, RL = 4Ω, THD = 30%)
• High-fidelity design (fL < 10Hz, fH = 130kHz)
• Extremely low impulse noise levels
• An arbitrary amplifier startup time can be set up with external components
• built-in standby switch circuit
• Full complement of built-in protection circuits (includes circuits that protect against shorting to VCC, shorting to
ground, load shorting, over-voltages and excessive temperatures)
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Surge supply voltage
Maximum output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
VCC surge
IO peak
Pd max
Topr
Tstg
Conditions
No signal
t ≤ 0.2s, Giant pulse one-shot
Per channel
With a infinite heat sink
Ratings
Unit
18
V
50
V
3.0
A
32
W
-35 to +85
°C
-40 to +150
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Semiconductor Components Industries, LLC, 2013
May, 2013
40109 MS JK 20090313-S00003 No.5715-1/8