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VB408 데이터시트(PDF) 1 Page - STMicroelectronics |
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VB408 데이터시트(HTML) 1 Page - STMicroelectronics |
1 / 8 page September 1999 1/8 ® VB408 / VB408B / VB408FI HIGH VOLTAGE LINEAR REGULATOR POWER I.C. s INPUT VOLTAGE UP TO 400 V DC OR 285 V RMS RECTIFIED s OUTPUT VOLTAGE ADJUSTABLE FROM 1.25 TO VIN-30V s OUTPUT CURRENT LIMITED TO 40 mA s THERMAL SHUT-DOWN PROTECTION s SHORT CIRCUIT PROTECTION DESCRIPTION The VB408, VB408B, VB408FI are fully protected positive adjustable voltage regulators made using a proprietary High Voltage VIPower ™ technology. The device can be connected to a D.C. source (up to 400V) or in off-line application directly to the rectified main (110V/ 230V). It is particularly suitable to be used in the manufacture of DC/DC converters, AC/DC converters, start-up circuits, pneumatic valve drivers and current sources. The device is able to drive resistive or inductive loads with an output voltage from 1.25V to VIN-30V providing an internally limited output current; it has built in short circuit and thermal shutdown protections. The device does not provide galvanic insulation from main. TYPE ∆V IN,OUT ILIM VOUT VB408 VB408FI VB408B 400 V 40 mA 1.25 to VIN-30 V 1 PRELIMINARY DATA BLOCK DIAGRAM FC 00410 VOUT VIN AD J BIAS CIRCUIT CURRENT SENSE + _ + _ RE F 1 + _ Thermal Protection Control Signal Power Stage Current Limitation REF 2 RE F 3 TO-220 1 2 3 1 2 3 ISOWATT220 ORDER CODES : ISOWATT220 VB408FI TO-220 VB408 D2PAK VB408B 1 3 D2PAK |
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