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IR3837MPBF Datasheet(PDF) 7 Page - International Rectifier |
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IR3837MPBF Datasheet(HTML) 7 Page - International Rectifier |
7 / 36 page 7 IR3837MPbF Rev 1.31 Electrical Specifications (continued) PARAMETER SYMBOL TEST CONDITION MIN TYP MAX UNIT FAULT PROTECTION Fs=250kHz 10.4 11.8 13.2 Fs=500kHz 21.5 24.4 27.3 OCSET Current IOCSET Fs=1500kHz 68 77 86 µA OC comp Offset Voltage VOFFSET Note4 -6 0 +6 mV SS off time SS_Hiccup 4096 Cycles Thermal Shutdown Note4 140 Thermal Hysteresis Note4 20 °C UNDER VOLTAGE LOCKOUT VCC-Start-Threshold VCC_UVLO_Start Vcc Rising Trip Level 4.06 4.26 4.46 VCC-Stop-Threshold VCC_UVLO_Stop Vcc Falling Trip Level 3.76 3.96 4.16 V Enable-Start-Threshold Enable_UVLO_Start Supply ramping up 1.14 1.2 1.36 Enable-Stop-Threshold Enable_UVLO_Stop Supply ramping down 0.75 0.85 0.95 V Enable leakage current Ien Enable=3.3V 10 µA PGOOD Fb Rising, Vref < 1.2V 115 %Vref Power Good upper Threshold VPG(upper) Fb Rising, Vref > 1.5V 115 %Vp Upper Threshold Delay VPG(upper)_Dly Fb Falling 256/Fs s Fb Rising, Vref < 1.2V 85 %Vref Power Good lower Threshold VPG(lower) Fb Rising, Vref > 1.5V 85 %Vp Lower Threshold Delay VPG(lower)_Dly Fb Rising 256/Fs s Soft Start Delay Time Tdelay(Delay) Note4 10 ms PGood Voltage Low PG(voltage) IPgood=-5mA 0.5 V Tracker Comparator Upper Threshold VPG(tracker_upper) Vp Rising, Vref > 1.5V 0.5 Tracker Comparator Lower Threshold VPG(tracker_lower) Vp Falling, Vref > 1.5V 0.3 V Tracker Comparator Delay Tdelay(tracker) Vp Rising, Vref > 1.5V 256/Fs s Note3: Cold temperature performance is guaranteed via correlation using statistical quality control. Not tested in production. Note4: Guaranteed by design but not tested in production Note5: Upgrade to industrial/MSL2 level applies from date codes 1141 (marking explained on application note AN1132 page 2). Products with prior date code of 1141 are qualified with MSL3 for Consumer market. |
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