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LA4705 Datasheet

  • LA4705

  • 15 W 2-channel BTL AF Power Amplifier for Car Stereos

  • 8頁(yè)

  • SANYO

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Ordering number: EN3848D
Monolithic Linear IC
LA4705
15 W 2-channel BTL AF Power Amplifier
for Car Stereos
Overview
The LA4705 is a BTL two-channel power IC for car audio and
radio-cassette players developed in pursuit of excellent sound
quality. Low-region frequency characteristics have been
improved through the use of a new NF capacitorless circuit,
and crosstalk which causes 鈥樷€榤uddy鈥欌€?sound has been reduced
by improving both circuit and pattern layout. As a result, the
LA4705 provides powerful bass and clear treble. In addition,
the LA4705 features on-chip protectors and standby switch.
Package Dimensions
unit: mm
3109-SIP18H
[LA4705]
Features
.
High power: supports total output of 25 W + 25 W
=
.
(V pop14.4 V, THD = 30%, R = 4
鈩?
.
Less noise
Designed for excellent sound quality
10 Hz,
= 130 kHz)
.
(f <on time fsettable by external capacitor
.
Any switch circuit on chip (microprocessor supported)
.
Standby protectors on chip
Various
CC
L
L
H
SANYO : SIP18H
.
.
(output-to-ground short/output-to-V
CC
short/
load short/overvoltage/thermal shutdown circuit)
NF capacitorless
Supports R
L
= 2
鈩?/div>
Specifications
Maximum Ratings
at Ta = 25擄C
Parameter
Maximum supply voltage
Surge supply voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V
CC
max 1
V
CC
max 2
V
CC
surge
Pd max
Topr
Tstg
With signal
t
%
0.2 s, single giant pulse
Arbitrarily large heat sink
Conditions
No signal, t = 60 s
Ratings
24
18
50
37.5
鈥?5 to +85
鈥?0 to +150
Unit
V
V
V
W
擄C
擄C
* Set V
CC
, R
L
in a range that does not exceed Pd max = 37.5 W
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
D3096HA(II)/12693TS/4152TS No.3848-1/8

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