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UC2851NG4 Fiches technique(PDF) 6 Page - Texas Instruments |
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UC2851NG4 Fiches technique(HTML) 6 Page - Texas Instruments |
6 / 11 page UC1851 UC2851 UC3851 OPEN-LOOP CIRCUIT High Peak currents associated with capacitive loads necessitate careful grounding techniques. Timing and bypass capacitors should be connected close to pin 13 in a single ground point. Programmable Soft Start and Restart Delay Circuit For further application information see UC1840/UC1841 Data Sheets UC1851 Power MOSFET Drive Interface UNITRODE INTEGRATED CIRCUITS 7 CONTINENTAL BLVD. • MERRIMACK, NH 03054 TEL. (603) 424-2410 • FAX (603) 424-3460 Nominal Frequency = 1 RTCT = 50kHz Start Voltage = 3 R1 + R2 + R3 R2 + R3 +0.2R1 = 12V UV Fault Voltage = 3 R1 + R2 + R3 R2 + R3 = 8V OV Fault Voltage = 3 R1 + R2 + R3 R3 = 32V Current Limit = 200mV Current Fault Voltage = 600mV Duty Cycle Clamp = 50% @VIN = 15V, Duty Cycle = 48% @VIN = 30V, Duty Cycle = 24% 6 |
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Description similaire - UC2851NG4 |
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