LA4728 SANYO [Sanyo Semicon Device], LA4728 Datasheet
LA4728
Manufacturer Part Number
LA4728
Description
2-Channel BTL Power Amplifier 35 W+35 W with Standby Switch for Car Stereos
Manufacturer
SANYO [Sanyo Semicon Device]
Datasheet
1.LA4728.pdf
(3 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LA4728
Manufacturer:
SANYO/三洋
Quantity:
20 000
Ordering number : EN
Preliminary
Overview
The LA4728 is a BTL two-channel power IC for car
audios 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 “muddy” sound has been reduced
by improving both circuit and pattern layout. As a result
the LA4728 provides powerful bass and clear treble.
Features
Specifications
Maximum Ratings at Ta = 25 ˚C
Recommended Conditions at Ta = 25 ˚C
Maximum supply voltage
Surge supply voltage
Maximum output current
Allowable power disspation
Operating temperature
Storage temperature
Recommended supply voltage
Operating voltage range
Recommended load resistance
High power: supports total output of 35 W+35 W. [EIAJ
power] (V
Less pop noise.
Designed for excellent sound quality.
(f
Any rise time settable by an external capacitor.
Standby switch circuit on chip. (microcontroller support-
ed)
Various protectors on chip.
(output-to-ground short/ output-to-V
short/ overvoltage/ thermal shutdown circuit)
The LA4728 is pin-compatible with the LA4725.
L
<10 Hz, f
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
*
5716
CC
H
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
=14.4 V, THD=30 %, R
Parameter
Parameter
=130 kHz)
CC
L
V
V
I
Pd max
Symbol
CC
Symbol
V
=4 )
O
CC
R
Topr
Tstg
V
CC
short/ load
L
peak
CC
surge f
max
op
op
Per channel
With arbitrarily large heat sink
Range where Pd max is not exceeded
2-Channel BTL Power Amplifier (35 W+35 W)
0.2 s, single giant pulse
with Standby Switch for Car Stereos
Package Dimensions
unit: mm
3113A-SIP14HZ
Conditions
Conditions
[LA4728]
Monolithic Linear IC
32497RM(KOTO) No.5716-1/3
–35 to +85
–40 to +150
Ratings
Ratings
LA4728
SANYO: SIP14HZ
9 to 16
13.2
3.5
18
50
32
4
Unit
Unit
W
˚C
˚C
V
V
A
V
V
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LA4728 Summary of contents
Page 1
... Ordering number : EN * 5716 Preliminary Overview The LA4728 is a BTL two-channel power IC for car audios 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 “muddy” sound has been reduced by improving both circuit and pattern layout ...
Page 2
... Arbitrarily large heat sink =3˚C =4˚C/W 20 =7˚C/W 15 13.9 f =10˚C/W 10 fin 3.1 0 – 100 Ambient temperature, Ta — ˚C LA4728 = 13 kHz 600 CC L Conditions Rg THD= =13 THD= =14 THD= =14.4 V ...
Page 3
... SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of March, 1997. Specifications and information herein are subject to change without notice. LA4728 Predriver Power Load short protector ...