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PDF LA4450 Data sheet ( Hoja de datos )
| Número de pieza | LA4450 | |
| Descripción | Two Channel Power IC for Bus or Track Use in TV and Home Audio Applications | |
| Fabricantes | Sanyo | |
| Logotipo |  |
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Ordering number : EN4090C
Monolithic Linear IC
LA4450
Two Channel Power IC for Bus or Track
Use in TV and Home Audio Applications
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
Features
• Two channels in a single package
• PO = 12 W × 2 (VCC = 26.4 V, RL = 8 Ω, THD = 10%)
• PO = 20 W × 2 (VCC = 26.4 V, RL = 4 Ω, THD = 10%)
• Can drive 4 Ω speakers
• Built-in standby switch
• Minimizes impulse noises
Specifications
Maximum Ratings at Ta = 25°C
SANYO: SIP-14H
Parameter
Symbol
Conditions
Maximum supply voltage
Maximum output current
Allowable power dissipation
VCC max
IO peak
Pd max*
Rg = 0 (no signal)
Infinite heat sink
Operating temperature
Topr
Storage temperature
Tstg
Note: * Set VCC and RL within ranges that do not cause Pd max to exceed 25 W.
(When VCC is 37 V, RL should be 6 Ω or larger and when VCC is 35 V, RL should be 4 Ω or larger.)
Operating Conditions at Ta = 25°C
Ratings
37
4
25
–35 to +80
–40 to +150
Unit
V
A
W
°C
°C
Parameter
Recommended supply voltage
Recommended load resistance
Operating supply voltage range
Symbol
VCC
RL
VCCop
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
1 page  
Printed Circuit Board Pattern Example
LA4450
PO – VCC
C opper foiled side
90 × 100 mm2
PO – VCC
Supply voltage, VCC – V
THD – PO
Supply voltage, VCC – V
THD – PO
Output power, PO – W
Output power, PO – W
No. 4090-5/7
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet LA4450.PDF ] | |
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