Ordering number : EN4090C
Overview
The LA4450 is a single package two channel power IC
that supports an operating voltage of 26 V. It is partic-
ularly well suited for use as the bus or track power IC in
car stereo applications. Additionally, since the LA4450
can drive 4
Ω
loads, it can be used effectively in high-
power high-end products. Furthermore, since it supports a
high operating voltage and has low distortion, it is also
optimal for use in TV and home audio products.
Package Dimensions
unit: mm
3023A-SIP14H
[LA4450]
Functions
•
•
•
•
Standby switch (active on high (+5 V) input)
On-chip impulse noise protection circuit
On-chip thermal protection circuit
On-chip overvoltage and surge protection circuits
SANYO: SIP-14H
Features
•
•
•
•
•
•
Two channels in a single package
P
O
= 12 W
×
2 (V
CC
= 26.4 V, R
L
= 8
Ω,
THD = 10%)
P
O
= 20 W
×
2 (V
CC
= 26.4 V, R
L
= 4
Ω,
THD = 10%)
Can drive 4
Ω
speakers
Built-in standby switch
Minimizes impulse noises
Specifications
Maximum Ratings
at Ta = 25°C
Parameter
Maximum supply voltage
Maximum output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V
CC
max
I
O
peak
Pd max*
Topr
Tstg
Infinite heat sink
Rg = 0 (no signal)
Conditions
Ratings
37
4
25
–35 to +80
–40 to +150
Unit
V
A
W
°C
°C
Note:
*
Set V
CC
and R
L
within ranges that do not cause Pd max to exceed 25 W.
(When V
CC
is 37 V, R
L
should be 6
Ω
or larger and when V
CC
is 35 V, R
L
should be 4
Ω
or larger.)
Operating Conditions
at Ta = 25°C
Parameter
Recommended supply voltage
Recommended load resistance
Operating supply voltage range
Symbol
V
CC
R
L
V
CC
op
Conditions
Ratings
26.4
8
10 to 30
Unit
V
Ω
V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
43098HA (OT)/10794TS B8-0618/1102 No. 4090-1/7
SANYO [ SANYO SEMICON DEVICE ]
