an8083s Panasonic Corporation of North America, an8083s Datasheet

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... ICs for CD/CD-ROM Player AN8083S Low Voltage Operation IC for DC-DC Converter Overview The AN8083S for controlling a DC-DC convert- er suitable for the switching power supply of various portable equipments. It can operate with input voltage 1.1V or more. Features • Operatable with low voltage input (PV • Decreased voltage detection circuit built-in • ...

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... AN8083S Absolute Maximum Ratings (Ta=25˚C) Parameter Supply Voltage Power Dissipation Operating Ambient Temperature Storage Temperature Recommended Operating Range (Ta=25˚C) Paramenter Operating Supply Voltage Range Electrical Characteristics (Ta=25˚C) Parameter Power V Stand-by Mode Supply Current CC Power V Operating Mode Supply Current CC Output Voltage Reset Output Threshold Voltage ...

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... Maximum duty ratio can be changed by installing external resistance between Pins 12 and 4. =20mA (max (Discharged – 0. – 0.7 REF I (Charged +1k REF I (Discharged) =1.40 I (Charged) becomes 4.2V or more CC AN8083S /I output not th SPRO CV I Discharged= (Charged) I Charged=30 A V=0.58V In normal mode ...

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... CT pin (Pin7) and the rectangular wave to OUT pin (Pin5). In this condition, called start condition, PWM control is not obtained and only oscillation is repeated. By this oscillation at start, supply output is increased. This supply output voltage is inputted to V pin (Pin16) of the AN8083S. When the voltage oscillation in normal operation is outputted. PWM control is started only after entering normal mode. The voltage switching between start and normal operation has 0.5V hysteresis. When power pin (Pin11) is set to “ ...

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... When the output voltage is made variable, detection voltage changes 51k 1.25V 3.64k 1 3.5k 7.5k • Chopper type application 16 51k 1 33k 7.5k V (16 ( 4.8V 4.2V (No changes 4.27V CC AN8083S 0.01 F 0.01 F 2SD1328 100 0.01 F 2SD1328 100 AN8083S R =20. =3. (14) 3 SEN R = =10k 2 4.8V 0.3V ...