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LA4906 Datasheet(Fiches technique) 1 Page - Sanyo Semicon Device

Numéro de pièce LA4906
Description  17-W, 2-Channel BTL AF High-Efficiency Power Amplifier for Car Audio Systems
Télécharger  10 Pages
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Fabricant  SANYO [Sanyo Semicon Device]
Site Internet  http://www.ssdc-jp.com/eng/
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Overview
The LA4906 is a BTL two-channel power amplifier for
use in car audio systems. It uses a signal-following
switching technique in the power supply for the amplifier
output stage and a newly-developed nonlinear amplifier
that features nonlinear characteristics in the signal system.
These features hold increases in the number of external
components to a minimum, and reduce power dissipation
(and thus heat generation) in the practical operating region
to about 1/2 that of earlier class B amplifier ICs. This can
contribute significantly to miniaturization and weight
reduction in the heat sink and to reduction of the heat
generated within the end product case.
Features
• Power dissipation reduced by 50% (for music at average
power levels, as compared to earlier Sanyo products)
• The number of required signal-following switching
circuits has been reduced to just one circuit for two
channels, reducing the number of external components.
• The output is a pure analog signal; no switching noise
whatsoever appears on the output lines.
• Uses a single-voltage power supply from 8 to 18 V.
• Provides a full range of built-in protection circuits,
including shorting of output pin to VCC, shorting of
output pin to ground, overvoltage, and thermal
shutdown protection.
• Built-in standby switch
• Clipping detection function
Package Dimensions
unit: mm
3160-SIP23HZ
Monolithic Linear IC
Ordering number : EN *5714
73097HA(OT) No. 5714-1/10
Preliminary
SANYO: SIP23HZ
[LA4906]
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
17-W, 2-Channel BTL AF High-Efficiency
Power Amplifier for Car Audio Systems
LA4906
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max1
With no signal, t = 1 minute
18
V
VCC max2
16
V
Maximum output current
IO Peak
Per channel
4.5
A
Allowable power dissipation
Pd max
With an arbitrarily large heat sink
37.5
W
Operating temperature
Topr
–35 to +85
°C
Storage temperature
Tstg
–40 to +150
°C
Specifications
Absolute Maximum Ratings at Ta = 25°C
Notes: 1. Set VCC and RL to be in the range where Pd max does not exceed 37.5 W.
2. The overvoltage protection circuit operates at VCC = 26 V or higher.




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