LA4485 Datasheet, PDF (1/20 Pages) Sanyo Semicon Device – 5 W, Two-channel Power Amplifier with Very Few External Parts

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 × 2 output power in dual mode, and 15 W in BTL mode}
. _{Minimum external parts for the Power Series count:}
. ^{4 or 5 parts in dual mode; 3 or 4 parts in BTL mode}
Protection circuits
Overvoltage protection
Thermal protection
DC output short-circuit protection (to V_CC and to GND)
. _{Circuitry designed to handle +VCC applied to the outputs}
. _{Pop noise reduction}
. _{Standby switch}
. _{Muting function}
SANYO : SIP13H
Specifications
Maximum Ratings at Ta = 25°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
*: By the π type B check point method.
Operating Conditions at Ta = 25°C
Parameter
Recommended supply voltage
Supply voltage range
Symbol
V_CC
V_CC op
Recommended load resistance range
R_L
Conditions
No signal
Based on the JASO standard
Per channel
With infinite heat sink
Conditions
Must not be over package Pd
Dual
BTL
Ratings
Unit
24
V
50
V
3.3
A
15
W
–30 to +80
°C
–40 to +150
°C
Ratings
Unit
13.2
V
7.5 to 18
V
2 to 8
Ω
4 to 8
Ω
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