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PDF LA4450 Data sheet ( Hoja de datos )
| Número de pieza | LA4450 | |
| Descripción | 2-Channel 26V Power Amplifier | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LA4450 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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Ordering number : EN4090E
LA4450
Monolithic Linear IC
2-Channel, 26V, Power Amplifier
for Bus and Track in Car Stereo
http://onsemi.com
Overview
The LA4450 is a single package 2-channel power Amplifier that supports an operating voltage of 26V. It is particularly
well suited for use as the bus and track power IC in car stereo applications. Additionally, since the LA4450 can drive 4
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.
Features
Two channels in a single package
PO = 12W2 (VCC = 26.4V, RL = 8, THD = 10%)
PO = 20W2 (VCC = 26.4V, RL = 4, THD = 10%)
Can drive 4 speakers
Built-in standby switch
Minimizes impulse noises
Functions
Standby switch (active on high (+5V) input)
On-chip impulse noise protection circuit
On-chip thermal protection circuit
On-chip overvoltage and surge protection circuits
SIP14 36.8x13.8 / SIP14H
Specifications
Maximum Ratings at Ta = 25C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
Maximum output current
Allowable power dissipation
VCC max
IO peak
Pd max
Rg = 0 (no signal)
Infinite heat sink*
37 V
4A
25 W
Operating temperature
Topr
35 to 80
C
Storage temperature
Tstg
40 to 150
C
Note : * Set VCC and RL within ranges that do not cause Pd max to exceed 25W.
Stress(eWs ehxecneeVdCinCg
itsho3s7eVli,sRteLd
should be 6 or larger
in the Maximum Ratings
and
table
wmhaeyndaVmCaCgeisth3e5Vde, vRicLe.sIhf oaunlydobfeth4eseolirmlaitsrgaerre.)exceeded,
device
functionality
should
not
be
assumed,
damage may occur and reliability may be affected.
Operating Conditions at Ta = 25C
Parameter
Recommended supply voltage
Recommended load resistance
Operating supply voltage range
Symbol
VCC
RL
VCC op
Conditions
Ratings
26.4
8
10 to 30
Unit
V
V
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended
Operating Ranges limits may affect device reliability.
ORDERING INFORMATION
See detailed ordering and shipping information on page 8 of this data sheet.
Semiconductor Components Industries, LLC, 2013
July, 2013
D1912NK Pd B8-0618/91708 MS JK/43098HA(OT)/10794TS/1102 No.4090-1/8
1 page  
Application Circuit Example
LA4450
+
C1 100μF/35V
DC
10
VCC
7
+ 26.4V
C10 1000μF/35V
IN1
9
IN1
NF1
8
+
C2 100μF
6.3V
Ripple filter,
impulse noise
prevention circuit
+
Current limiter circuit
CH1
−
75Ω
30kΩ
BS1
6+
47μF/35V
C9
5 +1000μF/35V
OUT1
C8
C7
0.15μF
R3 2.2Ω
4
RL=8Ω
Pre-ground
11
Bias
circuit
Overvoltage
protection circuit
Thermal
shutdown
protection
circuit
Power ground
Power ground
3
IN2 Current limiter circuit
13 +
IN2
NF2
CH2
14 −
+
C3 100μF
75Ω
6.3V
30kΩ
OUT2
2
+1000μF/35V
C5 0.15μF
C4 C6
1+
BS2
R2
47μF
35V
2.2Ω
RL=8Ω
Standby switch
OFF
12
ST
10kΩ
R1
ON
+
5V
C6, C7: 0.15μF ......mylar capacitors
No.4090-5/8
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet LA4450.PDF ] | |
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