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L4960 Datasheet(PDF) 2 Page - STMicroelectronics |
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L4960 Datasheet(HTML) 2 Page - STMicroelectronics |
2 / 16 page PIN CONNECTION (Top view) 2/16 N ° NAME FUNCTION 1 SUPPLY VOLTAGE Unregulated voltage input. An internal regulator powers the internal logic. 2 FEEDBACK INPUT The feedback terminal of the regulation loop. The output is connected directly to this terminal for 5.1V operation; it is connected via a divider for higher voltages. 3 FREQUENCY COMPENSATION A series RC network connected between this terminal and ground determines the regulation loop gain characteristics. 4 GROUND Common ground terminal. 5 OSCILLATOR A parallel RC network connected to this terminal determines the switching frequency. 6 SOFT START Soft start time constant. A capacitor is connected between this terminal and ground to define the soft start time constant. This capacitor also determines the average short circuit output current. 7 OUTPUT Regulator output. PIN FUNCTIONS Symbol Parameter Value Unit V1 Input voltage 50 V V1 -V7 Input to output voltage difference 50 V V7 Negative output DC voltage -1 V Negative output peak voltage at t = 0.1 µs; f = 100KHz -5 V V3,V6 Voltage at pin 3 and 6 5.5 V V2 Voltage at pin 2 7V I3 Pin 3 sink current 1 mA I5 Pin 5 source current 20 mA Ptot Power dissipation at Tcase ≤ 90°C15 W Tj,Tstg Junction and storage temperature -40 to 150 °C ABSOLUTE MAXIMUM RATINGS L4960 |
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