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VIPER12ADIP Datasheet(PDF) 4 Page - STMicroelectronics |
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VIPER12ADIP Datasheet(HTML) 4 Page - STMicroelectronics |
4 / 15 page VIPer12ADIP / VIPer12AS 4/15 ELECTRICAL CHARACTERISTICS (Tj=25°C, VDD=18V, unless otherwise specified) SUPPLY SECTION Note: 1. These test conditions obtained with a resistive load are leading to the maximum conduction time of the device. OSCILLATOR SECTION PWM COMPARATOR SECTION OVERTEMPERATURE SECTION Symbol Parameter Test Conditions Min. Typ. Max. Unit IDDch Start Up Charging Current VDS=100V; VDD=5V ...VDDon (See fig. 2) -1 mA IDDoff Start Up Charging Current in Thermal Shutdown VDD=5V; VDS=100V Tj > TSD - THYST 0mA IDD0 Operating Supply Current Not Switching IFB=2mA 35 mA IDD1 Operating Supply Current Switching IFB=0.5mA; ID=50mA (Note 1) 4.5 mA DRST Restart Duty Cycle (See fig. 3) 16 % VDDoff VDD Undervoltage Shutdown Threshold (See fig. 2 & 3) 7 8 9 V VDDon VDD Start Up Threshold (See fig. 2 & 3) 13 14.5 16 V VDDhyst VDD Threshold Hysteresis (See fig. 2) 5.8 6.5 7.2 V VDDovp VDD Overvoltage Threshold 38 42 46 V Symbol Parameter Test Conditions Min. Typ. Max. Unit FOSC Oscillator Frequency Total Variation VDD=VDDoff ... 35V; Tj=0 ... 100°C 54 60 66 kHz Symbol Parameter Test Conditions Min. Typ. Max. Unit GID IFB to ID Current Gain (See fig. 4) 320 IDlim Peak Current Limitation VFB=0V (See fig. 4) 0.32 0.4 0.48 A IFBsd IFB Shutdown Current (See fig. 4) 0.9 mA RFB FB Pin Input Impedance ID=0mA (See fig. 4) 1.2 k Ω td Current Sense Delay to Turn-Off ID=0.2A 200 ns tb Blanking Time 500 ns tONmin Minimum Turn On Time 700 ns Symbol Parameter Test Conditions Min. Typ. Max. Unit TSD Thermal Shutdown Temperature (See fig. 5) 140 170 °C THYST Thermal Shutdown Hysteresis (See fig. 5) 40 °C |
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