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參數(shù)資料
| 型號： | LA4485 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | 5 W, Two-channel Power Amplifier with Very Few External Parts |
| 中文描述： | 5瓦，雙通道與極少的外部零件功率放大器 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 497K |
| 代理商： | 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.
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 +V
CC
applied to the outputs
.
Pop noise reduction
.
Standby switch
.
Muting function
Package Dimensions
unit : mm
3107-SIP13H
[LA4485]
SANYO : SIP13H
Specifications
Maximum Ratings
at Ta = 25°C
Parameter
Symbol
V
CC
max
V
CC
surge
*
I
O
peak
Pd max
Topr
Tstg
Conditions
Ratings
Unit
V
V
A
W
°C
°C
Maximum supply voltage
Surge supply voltage
Peak output current
Allowable power dissipation
Operating temperature
Storage temperature
No signal
Based on the JASO standard
Per channel
With infinite heat sink
24
50
3.3
15
–30 to +80
–40 to +150
*: By the
π
type B check point method.
Operating Conditions
at Ta = 25°C
Parameter
Symbol
V
CC
V
CC
op
Conditions
Ratings
Unit
V
V
Recommended supply voltage
Supply voltage range
13.2
Must not be over package Pd
Dual
BTL
7.5 to 18
2 to 8
4 to 8
Recommended load resistance range
R
L
Ordering number: EN3680C
Monolithic Linear IC
LA4485
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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