Ordering number : EN4090D
Monolithic Linear IC
LA4450
For Bus and Track in Car Stereo
2-Channel Power Amplifier
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 4Ω
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
Functions
• Two channels in a single package
• PO = 12W×2 (VCC = 26.4V, RL = 8Ω, THD = 10%)
• PO = 20W×2 (VCC = 26.4V, RL = 4Ω, THD = 10%)
• Can drive 4Ω speakers
• Built-in standby switch
• Minimizes impulse noises
• 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
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Maximum supply voltage
VCC max
Maximum output current
Pd max
Operating temperature
Storage temperature
Ratings
IO peak
Allowable power dissipation
Conditions
Rg = 0 (no signal)
Unit
37
V
4
A
25
W
Topr
−35 to +80
°C
Tstg
−40 to +150
°C
Infinite heat sink*
Note : * Set VCC and RL within ranges that do not cause Pd max to exceed 25W.
(When VCC is 37V, RL should be 6Ω or larger and when VCC is 35V, RL should be 4Ω or larger.)
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer' s products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer' s products or
equipment.
91708 MS JK/43098HA (OT)/10794TS B8-0618/1102 No.4090-1/7
