LA4550 DATASHEET PDF

LA 2-channel af Power Amp For Radio, Tape Recoder Use. Features. Low quiescent current. On-chip 2 channels permitting use in stereo and bridge. LA Datasheet PDF Download – 2-Channel AF Power Amplifier, LA data sheet. Sanyo LA datasheet, 2-Channel AF Power Amplifier (1-page), LA datasheet, LA pdf, LA datasheet pdf, LA pinouts.

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Previous post Next post. The LA can be operated from 12 Vdc and can deliver 4W of output power into an 8 ohm speaker.

If the transformer regulation is not as specified, the supply voltage drops momentarily when the motor of an AC- powered set is turned ON. Cu-foiled area in the vicinity of the heat sink of the IC as large as possible when designing the printed circuit board.

It is recommended to apply silicone grease to the IC plastic area to reduce thermal resistance between the heat sink and the IC plastic area. Your email address will not be published. So, be careful of the transformer regulation.

DC muting To apply DC muting by controlling the NF pin, it is recommended to use the circuit configuration shown right. The following is a formula to be used to calculate Pd for stereo use.

So, it is recom. Supply voltage at Pd max.

AUDIO Cross Reference LA4550

Supply voltage at quiescent mode V CC Pd: Example of Heat Sink Mounting Method. In this circuit LA is wired in bridge mode. For stereo application, two identical amplifier modes have to be built according to the circuit ddatasheet.

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If the transformer regulation is not as specified, the supply voltage drops momentarily when the motor of an AC.

PDF LA4550 Datasheet ( Hoja de datos )

In the circuit capacitors C6 and C3 provides feedback datawheet their value determines the lower cut-off frequency. Slider contact noise of variable resistor Since the input circuit uses PNP transistors, no input coupling capacitor is required. The material of the heat sink is recommended to be copper or iron which is solderable.

Supply voltage at quiescent mode.

Power dissipation Pd is increased depending on the supply voltage and load. The following is a formula to be used to calculate Datashheet. Capacitors C1 and C7 are meant for bootstrapping.

For AC power supply, however, it is recommended to actually measure Pd on the transformer of each. SANYO assumes no responsibility for equipment failures that result from using products at values that.

It is recommended to apply silicone grease to the IC. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values such as maximum ratings, operating condition ranges,or other parameters listed in products specifications of any and all SANYO products described or contained herein.

The heat sink must be of such a shape as to datasheet able to dissipate heat from the IC plastic area and fin area and is soldered to. Since the input circuit uses PNP transistors, no input coupling capacitor is required.

Capacitors C9 and C10 are meant for coupling the speaker to the IC. You may also like: The potential at point.

Branch C2, R1 and C8, R3 are meant for preventing oscillations, and so the high frequency stability of the LA audio amplifier gets improved. Leave a Reply Cancel reply Your email address will not datashee published. Slider contact noise of variable resistor.

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LA Audio IC – Electronic Circuits, TV Schematics, Audio

So, it is recom- mended to use the printed circuit board together with the heat sink. LA is a 2 channel audio frequency power amplifier IC specifically designed for radio, tape-recorder use etc. The use of the Cu-foiled area indicated by shading in the above-mentioned sample printed circuit pattern makes it possible to dissipate more heat. Audio input can be applied to pin 8 of the IC with respect to the ground.

For the size of the heat sink, refer to the Pd — Ta characteristic. Supply voltage at Pd max V CC 1: To apply DC muting by controlling the NF pin, it datashest recommended. However, if slider contact noise of the variable resistor presents any problem, connect a capacitor in pa4550 with input.

Thermal Design Since the DIPF package is such that the Cu-foiled area of the printed circuit board is used to dissipate heat, make the Cu-foiled area in the vicinity of the heat sink of the IC as large as possible when designing the printed circuit board. However, if slider contact noise of the variable resistor presents any problem, connect a.

LA audio amplifier circuit. Supply voltage at maximum output. In this case, hum noise may be generated. Since the DIPF package is such that the Cu-foiled area of the printed circuit board is used to dissipate heat, make the.