Ordering number: EN3680C
Monolithic Linear IC
LA4485
5 W, Two-channel Power Amplifier with Very Few
External Parts
Overview
The LA4485 is a 5 W, two-channel power amplifier IC that
requires a minimum of external parts, making it ideal for radio
cassette players and car stereo equipment.
The LA4485 eliminates the need for bootstrap capacitors,
negative feedback capacitors, and oscillation prevention CR
parts, all of which were necessities for power ICs previously.
All of these functions are now on chip, keeping the number of
external parts to an absolute minimum. The LA4485 is part of
the Power (Stylish Power) Series, and supports two modes:
dual and BTL.
Package Dimensions
unit : mm
3107-SIP13H
[LA4485]
Features
.
5 W
脳
2 output power in dual mode, and 15 W in BTL mode
.
Minimum external parts for the Power Series count:
in dual
.
4 or 5 partscircuits mode; 3 or 4 parts in BTL mode
Protection
.
.
.
.
Overvoltage protection
Thermal protection
DC output short-circuit protection (to V
CC
and to GND)
Circuitry designed to handle +V
CC
applied to the outputs
Pop noise reduction
Standby switch
Muting function
SANYO : SIP13H
Specifications
Maximum Ratings
at Ta = 25擄C
Parameter
Maximum supply voltage
Surge supply voltage
Peak output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V
CC
max
V
CC
surge
*
I
O
peak
Pd max
Topr
Tstg
No signal
Based on the JASO standard
Per channel
With infinite heat sink
Conditions
Ratings
24
50
3.3
15
鈥?0 to +80
鈥?0 to +150
Unit
V
V
A
W
擄C
擄C
*: By the
蟺
type B check point method.
Operating Conditions
at Ta = 25擄C
Parameter
Recommended supply voltage
Supply voltage range
Recommended load resistance range
Symbol
V
CC
V
CC
op
R
L
Must not be over package Pd
Dual
BTL
Conditions
Ratings
13.2
7.5 to 18
2 to 8
4 to 8
Unit
V
V
鈩?/div>
鈩?/div>
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
73096HA(II)/D2893TS/9041TS No.3680-1/20
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