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IP1203 Datasheet(PDF) 3 Page - International Rectifier |
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IP1203 Datasheet(HTML) 3 Page - International Rectifier |
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3 / 23 page  www.irf.com 3 iP1203 Electrical Specifications (continued) Parameter Symbol Min Typ Max Units Conditions 170 ––– 230 kHz RT = 48.7kΩ Frequency fSW 255 ––– 345 kHz RT = 30.9kΩ 340 ––– 460 kHz RT = 21.5kΩ SYNC Frequency Range fSYNC 480 ––– 800 kHz Free running frequency set 20% below sync frequency SYNC Pulse Duration tSYNC ––– 200 ––– ns SYNC, High Level Threshold Voltage 2 ––– ––– V SYNC, Low Level Threshold Voltage ––– ––– 0.8 V VIN Quiescent Current IIN-LEAKAGE ––– 25 35 mA VIN = 12V Thermal Shutdown Tempshdn ––– 140 ––– °C Max Duty Cycle DMAX 85 ––– ––– % fSW= 200kHz, TBLK = 25°C VIN Undervoltage Lockout Threshold Voltage VIN-UVLO ––– 4.5 ––– V VIN ramping up to 12V VIN Undervoltage Lockout Hysteresis VIN-UVLO HYST ––– 0.25 ––– V VIN ramp up and ramp down Output Disable Voltage Soft Start Low Threshold Voltage VSS-DIS ––– ––– 0.25 V SS Pin Pulled Low Input Voltage Slew Rate VIN-SLEW ––– ––– 50 mV/µs |
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