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Sanyo - Two Channel Power IC for Bus or Track Use in TV and Home Audio Applications

Numéro de référence LA4450
Description Two Channel Power IC for Bus or Track Use in TV and Home Audio Applications
Fabricant Sanyo 
Logo Sanyo 





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LA4450 fiche technique
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 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 , THD = 10%)
• PO = 20 W × 2 (VCC = 26.4 V, RL = 4 , THD = 10%)
• Can drive 4 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 or larger and when VCC is 35 V, RL should be 4 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
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

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