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LA42051 Datasheet(PDF) 6 Page - Sanyo Semicon Device |
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LA42051 Datasheet(HTML) 6 Page - Sanyo Semicon Device |
6 / 9 page LA42352 No.A0078-6/9 Features of IC Inside and Usage Note Standby function • Pin 5 is the standby switch pin. The amplifier is turned on by applying approximately 3V or more to this pin through an external resistor (R3). • If voltage in excess of 10V is to be applied to the standby switch, calculate the value of R3 using the following formula so that the current flowing into pin 5 is 500 µA or less: R3 = (Applied voltage − 2VBE (≈1.4V)) 500 µA − 15kΩ Protector • In order to prevent damage or degradation which may be caused by abnormally heated IC, the LA42352 has a thermal shutdown protector. Accordingly, if the IC junction temperature (Tj) climbs to around 160 °C due to inadequate heat dissipation, the thermal shutdown protector will operate to control the output gradually into attenuation. |
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