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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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BA6198FP Fiches technique(PDF) 8 Page - Rohm |
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BA6198FP Fiches technique(HTML) 8 Page - Rohm |
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8 / 10 page  315 Optical disc ICs BA6198S / BA6198FP FOperation notes (1) Relationship between mute and reset output Drop in regulator voltage When the regulator volt- age drops below 4.0V (typically), the reset output changes to the low level and the IC is simultaneously muted. When the regulator voltages rises above 4.2V (typically), reset output changes to the high level and muting is released. Drop in bias voltage When the bias pin voltage drops below 1.4V (typically), the IC is muted and the re- set output simultaneously changes to the low level. Dur- ing ordinary use, the bias voltage should be kept above 1.6V. Thermal shutdown When the chip temperature rises above 175 _C (typically), the IC is muted and the re- set output simultaneously changes to the low level. Muting When the mute pin voltage is opened or lowered below 0.5V, the IC is muted, but the reset output remains the same. (2) Muting occurs during thermal shutdown, mute-on operations or a drop in the bias pin voltage or regulator voltage. In each case, only the drivers are muted. During muting, the output pins remain at the internal bias volt- age, roughly (VCC-VF)/2. (3) Be sure to connect the IC to a 0.1 µF bypass capaci- tor between the power supplies, at the base of the IC. (4) The radiating fin is connected to the package’s in- ternal GND, but should also be connected to an external ground. (5) The capacitor between regulator output (pin 8) and GND also serves to prevent oscillation of the IC, so select one with good temperature characteristics. FElectrical characteristic curves |
Numéro de pièce similaire - BA6198FP |
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Description similaire - BA6198FP |
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