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IR21571 Datasheet(PDF) 4 Page - International Rectifier |
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IR21571 Datasheet(HTML) 4 Page - International Rectifier |
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4 / 17 page  IR21571(S) 4 www.irf.com Floating Supply Characteristics Symbol Definition Min. Typ. Max. Units Test Conditions IQBS0 Quiescent VBS supply current 0 0 15 VHO = VS IQBS1 Quiescent VBS supply current 5 35 65 VHO = VB ILK Offset supply leakage current — — 50 µA VB = VS = 600V µA Electrical Characteristics (cont.) VCC = VBS = VBIAS = 14V +/- 0.25V, RT = 40.0kΩ, CT = 470 pF, RPH and RUN leads no connection, VCPH = 0.0V, RDT = 6.1kΩ, ROC = 20.0kΩ, VCS = 0.5V, VSD = 0.0V, CL = 1000pF, TA = 25 oC unless otherwise specified. RPH Characteristics Symbol Definition Min. Typ. Max. Units Test Conditions IRPHLK Open circuit RPH lead leakage current — 0.01 0.1 µA VRPH= 5V,VRPH= 6V VRPHFLT Fault-mode RPH lead voltage — 0 50 mV SD = 5V, CS = 2V, or Tj > TSD Oscillator I/O Characteristics Symbol Definition Min. Typ. Max. Units Test Conditions fosc Oscillator frequency 45.5 48 50.5 RT = 16.9k Ω, RDT = 6.1k Ω, CT=470pF d Oscillator duty cycle 49.5 50 50.5 % VCT+ Upper CT ramp voltage threshold 3.7 4.0 4.3 VCT- Lower CT ramp voltage threshold 1.85 2.0 2.15 VCTFLT Fault-mode CT lead voltage — 0 50 mV SD = 5V, CS = 2V, or Tj > TSD VRT RT lead voltage 1.85 2.0 2.15 V VRTFLT Fault-mode RT lead voltage — 0 50 SD = 5V, CS = 2V, or Tj > TSD tdlo LO output deadtime 2 2.3 2.5 tdho HO output deadtime 2 2.3 2.5 mV kHz µsec V Symbol Definition Min. Typ. Max. Units Test Conditions ICPH CPH lead charging current 0.72 0.85 0.98 µAVCPH = 5.3V VCPHIGN CPH lead lgnition mode threshold voltage 3.7 4.0 4.3 VCPHRUN CPH lead run mode threshold voltage 4.7 5.15 5.45 VCPHCLMP CPH lead clamp voltage 9.0 9.5 10.5 ICPH = 1mA VCPHFLT Fault-mode CPH lead voltage — 0 300 mV SD = 5V, CS = 2V, or Tj > TSD Preheat Characteristics V |
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