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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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To datashest DC muting by controlling the NF pin, it is recommended. Supply voltage at quiescent mode. Supply voltage at quiescent mode V CC Pd: The potential at point A is set to 3. If the transformer regulation is not as specified, the supply voltage drops momentarily when the motor of an AC- powered set is turned ON.

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.

The material of the. The material of the heat sink is recommended to be copper or iron which is solderable. Capacitors C1 and C7 are meant for bootstrapping.

LA datasheet & applicatoin notes – Datasheet Archive

LA audio amplifier circuit. Slider contact noise of variable resistor Since the input circuit uses Datashewt transistors, no input coupling capacitor is required. Supply voltage at Pd max.

C4 is a ripple filtering capacitor while C11 and C12 are meant for power supply filtering. It is recommended to apply silicone grease to the IC. Supply voltage at maximum output r: Slider contact noise of variable resistor. 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.

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In this circuit LA is wired in bridge mode. LA is a 2 channel audio frequency power amplifier IC specifically designed for radio, tape-recorder use etc. Capacitors C9 and C10 are meant for coupling the speaker to the IC.

LA4550 Datasheet PDF

However, if slider contact noise of the variable resistor presents any problem, connect a. Since the input circuit uses PNP transistors, no input coupling capacitor is required.

Branch C2, R1 and C8, R3 are meant for preventing oscillations, and so the high frequency stability of the LA audio amplifier gets improved. You may also like: Supply voltage at Pd max V CC 1: So, be careful of the transformer regulation. 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.

For the size of daasheet heat sink, refer to pa4550 Pd — Ta characteristic.

PDF LA4550 Datasheet ( Hoja de datos )

Previous post Next post. The following is a formula to be used to calculate Pd for stereo use. For AC power supply, however, it is recommended to actually measure Pd on the transformer of each set. Your email address will not be published. In the circuit capacitors C6 and C3 provides feedback and their value determines the lower cut-off frequency.

Supply voltage at maximum output. Power dissipation Pd is increased depending on the supply voltage and load.

The heat sink must be of such a shape as to be able to dissipate heat from the IC plastic area and fin area and is soldered to. Leave a Reply Cancel reply Your email address will not be published. So, it is recom- mended to use the printed circuit board together with the heat sink. So, it is recom. Since the DIPF package is such that the Cu-foiled area of the printed circuit board is used to dissipate heat, make the.

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The potential at point. SANYO assumes no responsibility for equipment failures that result from using products at values that. The following is a formula to be used to calculate Pd.

If the transformer regulation is not as specified, the supply voltage drops momentarily when the motor of an AC. Example of Heat Sink Mounting Method. Audio input can be applied to pin 8 of the IC with respect to the ground. However, if slider contact noise of the variable resistor presents any problem, connect a capacitor in series with input.

For AC power supply, however, it is recommended to actually measure Pd on the transformer of each. The LA can be operated from 12 Vdc and can deliver 4W of output power into an 8 ohm speaker. For stereo application, two identical amplifier modes have to be built according to the circuit diagram. 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.

DC muting To apply DC muting by controlling the NF pin, it is recommended to use the circuit configuration shown right.

In this case, hum noise may be generated. Cu-foiled area in the vicinity dtasheet the heat sink of the IC as large as possible when designing the printed circuit board.