DataSheet.es    


PDF LA4182 Data sheet ( Hoja de datos )

Número de pieza LA4182
Descripción 2.3 W 2-Channel AF Power Amplifier
Fabricantes Sanyo Semicon Device 
Logotipo Sanyo Semicon Device Logotipo



Hay una vista previa y un enlace de descarga de LA4182 (archivo pdf) en la parte inferior de esta página.


Total 9 Páginas

No Preview Available ! LA4182 Hoja de datos, Descripción, Manual

Ordering number: EN742G
Monolithic Linear IC
LA4182
2.3 W 2-Channel AF Power Amplifier
Features
. Built-in 2 channels enabling use in stereo and bridge
. amplifier applications.
High output: 2.3 W/channel, VCC = 9 V, RL = 4 , and
. 4.7 W/bridge, RL = 8 .
Minimum number of external parts required : 9 pcs. min.
. (Stereo/bridge).
www.DataSheSemt4aUll.cpoomp noise at the time of power supply ON/OFF due to
built-in muting circuit.
. Good ripple rejection ratio due to built-in ripple filter.
. Soft tone at the time of output saturation.
. Good channel separation.
. Voltage gain fixed at 45 dB (Bridge: 51 dB). Variable
. voltage gain available with external resistor added.
Easy to design radiator fin.
Package Dimensions
unit : mm
3022A-DIP12F
[LA4182]
SANYO : DIP12F
Specifications
Note) In general applications, heat generated in this package
can be radiated through the Cu-foiled area of the printed
circuit board, but since power dissipation Pd may be
increased depending on the supply voltage and load
conditions, it is recommended to use a fin additionally.
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
Pd max
Topr
Tstg
Conditions
With signal
Quiescent
With printed circuit board
(Refer to Pd-Ta characteristics)
Ratings
11
15
4
−20 to +75
−55 to +150
Unit
V
V
W
°C
°C
Recommended Operating Conditions at Ta = 25°C
Parameter
Supply voltage
Load resitance
Symbol
VCC
RL
Stereo
Bridge
Conditions
Ratings
9
4 to 8
8
Unit
V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
41596HA(II)/O207KI/2146KI/4025KI/O291KI,TS No.742-1/9

1 page




LA4182 pdf
LA4182
2. Proper cares in using IC
. If the IC is used in the vicinity of the maximum rating, even a slight variation in conditions may cause the maximum rating to
be exceeded, thereby leading to a breakdown. Allow an ample margin of variation for supply voltage, etc. and use the IC in the
. range where the maximum rating is not exceeded.
Pin-to-pin short
If the supply voltage is applied when the space between pins is shorted, a breakdown or deterioration may occur. When
mounting the IC on the board of applying the supply voltage, make sure that the space between pins is not shorted with solder,
. etc.
Load short
If the IC is used with the load shorted for a long time, a breakdown or deterioration may occur. Be sure not to short the load.
. When the IC is used in radios or radio-cassette tape recorders, keep a good distance between IC and bar antenna.
. When making the board, refer to the example of printed circuit pattern.
Proper cares in operating a set with LA4182 incorporated
When a set with the LA4182 incorporated is operated from AC power supply, a momentary drop in supply voltage is caused by
the transformer regulation, etc. at the time of turning ON the motor with the circuit shown below. In this case, if ripple noise is
generated from the speaker or headphone, take the following actions.
www.DataSheet4U.com
1. Connect a diode (rectifier diode of average rectified current IO = 100 to 200 mA) across pins 6 and 12 of the LA4182 so that
the voltage at pin 6 can follow the supply voltage regulation. In the steady state, this diode is cut off.
2. Increase the capacity of the power source capacitor so that the supply voltage regulation can be minimized.
Unit (capacitance: F)
Radiation design
. Since the DIP 12-pin package is so designed as to be able to radiate heat through the Cu-foiled area of printed circuit board
under normal operating conditions, make the Cu-foilled area near the fin of IC as large as possible when designing the printed
. circuit board.
By providing the Cu-foiled area covered by the broken line as shown in the above-mentioned example of printed circuit pattern,
. a rather satisfactory radiation is enabled. (Refer to the Pd max-Ta characteristics.)
Since the power dissipation (Pd) goes higher depending on the conditions of supply voltage and load, it is recommended to use
. a fin together with the printed circuit board.
The following equations are rule-of-thumb guides for Pd (for stereo). For AC power supply, it is desirable to measure with the
transformer of each individual set. In the bridge amplifier application, calculation should be made with 1/2 of the load used.
(1) DC power supply
Pd max =
VCC2
π2RL
+ ICCO v VCC (For stereo)
No.742 -5/9

5 Page










PáginasTotal 9 Páginas
PDF Descargar[ Datasheet LA4182.PDF ]




Hoja de datos destacado

Número de piezaDescripciónFabricantes
LA4180(LA4180 / LA4182) 1 ~ 2.3W 2-Channel AFSanyo
Sanyo
LA41822.3 W 2-Channel AF Power AmplifierSanyo Semicon Device
Sanyo Semicon Device
LA4182(LA4180 / LA4182) 1 ~ 2.3W 2-Channel AFSanyo
Sanyo
LA41832.3 W 2-Channel AF Power Amplifier for Radio Cassette PlayersSanyo Semicon Device
Sanyo Semicon Device

Número de piezaDescripciónFabricantes
SLA6805M

High Voltage 3 phase Motor Driver IC.

Sanken
Sanken
SDC1742

12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.

Analog Devices
Analog Devices


DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.


DataSheet.es    |   2020   |  Privacy Policy  |  Contacto  |  Buscar