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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LA is a 2 channel audio frequency power amplifier IC specifically designed for radio, tape-recorder use etc. Previous post Next post. The material of the.

LA audio amplifier circuit 4W, 8 ohm, 12V operation

To apply DC muting by controlling the NF pin, it is recommended. DC muting To apply DC muting by controlling the NF pin, it is recommended to use the circuit configuration shown right. The LA can be operated from 12 Vdc and can deliver 4W of output power into an 8 ohm speaker.

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. In this case, hum noise may be generated. Supply voltage at maximum output r: Capacitors C1 and C7 are meant for bootstrapping. Since the input circuit uses PNP transistors, no input coupling capacitor is required. LA audio amplifier circuit.

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 Your email address will not be published. The heat sink must be of such a shape as to be able to dissipate heat from the IC plastic area and datashdet area and is soldered to. In the circuit capacitors C6 and C3 provides feedback and their value determines the lower cut-off frequency.

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For the size of the heat sink, refer to the Pd — Ta characteristic. Leave a Reply Cancel reply Your email address will not dstasheet published.

The following is a formula to be used to calculate Pd. Supply voltage at Pd max V CC 1: Cu-foiled area in the vicinity of the heat sink of the IC as large as possible when designing the printed circuit board. Capacitors C9 and C10 are meant for coupling the speaker to the IC.

LA (Sanyo) – 2-channel Af Power Amp For Radio, Tape Recorder Use | eet

If the transformer regulation is not as specified, the supply voltage drops momentarily when the motor of an AC- powered set is turned ON. So, it is recom- mended to use the printed circuit board together with the heat sink. Supply voltage datxsheet Pd max. In this circuit LA is wired in bridge mode. So, be careful of the transformer regulation.

Audio input can be applied to pin 8 dataheet the IC with respect to the ground.

So, it is recom. C4 is a ripple filtering capacitor while C11 and C12 are meant for power supply filtering.

(PDF) LA4550 Datasheet download

The potential at point. Supply voltage at quiescent mode V CC Pd: If the transformer regulation is not as specified, the supply voltage drops momentarily when the motor of an AC. 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.

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. You may also like: Branch C2, R1 and C8, R3 are meant for preventing oscillations, and so the high frequency stability of the LA audio amplifier gets improved.

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For AC power supply, however, it is recommended dataxheet actually measure Pd on the transformer of each. The potential at point A is set to 3. Slider contact noise of variable resistor Since the input circuit uses PNP transistors, no input coupling capacitor is required.

For AC power supply, however, it is recommended to actually measure Pd on the transformer of each set. Since the DIPF package is such that the Cu-foiled area of the printed circuit board is used to dissipate heat, make the.

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. For stereo application, two identical amplifier modes have to be built according to the circuit diagram. The following is a formula to be used to calculate Pd for stereo use. The material of the heat sink is recommended to be copper or iron which is solderable. Supply voltage at maximum output. Power dissipation Pd is increased depending on the supply voltage and load.

However, if slider contact noise of the variable resistor presents any problem, connect a capacitor in series with input. Example of Heat Sink Mounting Method. Slider contact noise of variable resistor.

However, if slider contact noise of the variable resistor presents any problem, connect a. Supply voltage at quiescent mode.