Comparing the NE555 timer and LM386 amplifier as inductorless DC-DC converters

Comparing the NE555 timer and LM386 amplifier as inductorless DC-DC converters

The maximum power dissipation of NE555 in a DIP8 package is only 600 mW, while the comparable specification for the LM386 is 1.25 W; here, the audio amplifier has considerable advantage compared to the timer. The maximum junction temperature of NE555 isn't explicitly specified in the datasheet;...

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Veröffentlicht in:Electronic Design 2016-01, Vol.64 (1), p.37
1. Verfasser: Petrov, Petre Tzvetanov
Format: Magazinearticle
Sprache:eng
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Analysis
Circuits
Electric current converters
Integrated circuits
Load
Power supply
Receivers & amplifiers
Semiconductor chips
Semiconductor industry
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description The maximum power dissipation of NE555 in a DIP8 package is only 600 mW, while the comparable specification for the LM386 is 1.25 W; here, the audio amplifier has considerable advantage compared to the timer. The maximum junction temperature of NE555 isn't explicitly specified in the datasheet; for the LM386, that parameter is 150°C. The junction-case thermal resistance TJC of LM386 is 37°C/W, but for NE555 that parameter isn't specified.
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source EBSCOhost Business Source Complete; EZB-FREE-00999 freely available EZB journals
subjects Analysis
Circuits
Electric current converters
Integrated circuits
Load
Power supply
Receivers & amplifiers
Semiconductor chips
Semiconductor industry
title Comparing the NE555 timer and LM386 amplifier as inductorless DC-DC converters
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