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BA6796FP Scheda tecnica(PDF) 10 Page - Rohm |
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BA6796FP Scheda tecnica(HTML) 10 Page - Rohm |
10 / 11 page 492 Optical disc ICs BA6796FP FOperation notes (1) Setting the tray motor driver voltage (forward mode) (2) Mute functions %Thermal shutdown& The output current is muted when the chip temperature exceeds 175 _C (typically). %Supply voltage drop muting& The internal circuits turn off when the supply voltage drops below 4.3V (typically), and turn on again when it rises above 4.5V (typically). %Bias drop muting& Muting also occurs when the bias pin voltage (26 pin) is lowered below 1.4V (typically). Be sure the voltage stays between 1.6V and 6.5V during normal operation. (3) Muting occurs during thermal shutdown and when the supply voltage or bias pin voltage drops. In each case, only the driver is muted. The output pin voltage dur- ing muting is the internal bias voltage, roughly VCC– VF / 2. (4) Attach a 0.1 µF bypass capacitor to the power sup- ply, at the base of the IC. (5) Connect the radiating fin to an external ground. FElectrical characteristic curves |
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