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IR21571 Datasheet(PDF) 5 Page - International Rectifier |
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IR21571 Datasheet(HTML) 5 Page - International Rectifier |
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5 / 18 page  IR21571(S) & (PbF) www.irf.com 5 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. RUN Characteristics Symbol Definition Min. Typ. Max. Units Test Conditions IRUNLK Open circuit RUN lead leakage current — 0.01 0.1 µAVRUN = 5V VRUNFLT Fault-mode RUN lead voltage — 0 50 mV SD = 5V, CS = 2V, or Tj > TSD Symbol Definition Min. Typ. Max. Units Test Conditions VOL Low-level output voltage — 0 100 Io = 0 VOH High level output voltage — 0 100 VBIAS - VO, Io = 0 tr Turn-on rise time 55 85 150 tf Turn-off fall time 35 45 100 Gate Driver Output Characteristics mV nsec Note 4: When the IC senses an overtemperature condition (Tj > 160ºC), the IC is latched off. In order to reset this Fault Latch, the SD lead must be cycled high and then low, or the VCC supply to the IC must be cycled below the falling undervoltage lockout threshold (VCCUV-). Protection Circuitry Characteristics Symbol Definition Min. Typ. Max. Units Test Conditions VSD+ Rising shutdown lead threshold voltage 1.9 2.1 2.3 V VSDHYS Shutdown pin threshold hysteresis 100 150 200 mV VCS+ Over-current sense threshold voltage 0.99 1.10 1.21 VCS- Under-current sense threshold voltage 0.15 0.2 0.26 TCS Over-current sense propogation delay 100 250 400 nsec Delay from CS to LO VDC+ Low VBUS/rectified line input upper threshold 5.0 5.20 5.6 VDC- Low VBUS/rectified line input lower threshold 2.85 3.3 3.3 TSD Thermal shutdown junction temperature 150 160 170 oC Note 4 V V |
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