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LT1641-1 Datasheet(PDF) 4 Page - Linear Integrated Systems |
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LT1641-1 Datasheet(HTML) 4 Page - Linear Integrated Systems |
4 / 26 page LT4356-1/LT4356-2 4 4356fa The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 12V unless otherwise noted. ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VCC Operating Voltage Range l 480 V ICC VCC Supply Current VSHDN = Float l 1 1.5 mA VSHDN = 0V, IN+ = 1.3V, LT4356-1 LT4356I-1, LT4356C-1 LT4356H-1 l l 7 7 7 25 30 40 μA μA μA VSHDN = 0V, IN+ = 1.3V, LT4356-2 LT4356I-2, LT4356C-2 LT4356H-2 l l 60 60 60 70 100 250 μA μA μA IR Reverse Input Current VSNS = VCC = –30V, SHDN Open VSNS = VCC = VSHDN = –30V l l 0.3 0.8 1 2 mA mA ΔVGATE GATE Pin Output High Voltage VCC = 4V; (VGATE – VOUT) 80V ≥ VCC ≥ 8V; (VGATE – VOUT) l l 4.5 10 8 16 V V IGATE(UP) GATE Pin Pull-Up Current VGATE = 12V; VCC = 12V VGATE = 48V; VCC = 48V l l –4 –4.5 –23 –30 –36 –50 μA μA IGATE(DN) GATE Pin Pull-Down Current Overvoltage, VFB = 1.4V, VGATE = 12V Overcurrent, VCC – VSNS = 120mV, VGATE = 12V Shutdown Mode, VSHDN = 0V, VGATE = 12V l l l 75 5 1.5 150 10 5 mA mA mA VFB FB Pin Servo Voltage VGATE = 12V; VOUT = 12V, LT4356I, LT4356C VGATE = 12V; VOUT = 12V, LT4356H l l 1.225 1.215 1.25 1.25 1.275 1.275 V V IFB FB Pin Input Current VFB = 1.25V l 0.3 1 μA ΔVSNS Overcurrent Fault Threshold ΔVSNS = (VCC – VSNS), VCC = 12V, LT4356I, LT4356C ΔVSNS = (VCC – VSNS), VCC = 12V, LT4356H ΔVSNS = (VCC – VSNS), VCC = 48V, LT4356I, LT4356C ΔVSNS = (VCC – VSNS), VCC = 48V, LT4356H l l l l 45 42.5 46 43 50 50 51 51 55 55 56 56 mV mV mV mV ISNS SNS Pin Input Current VSNS = VCC = 12V to 48V l 510 22 μA ILEAK FLT, EN Pins Leakage Current AOUT Pin Leakage Current FLT, EN = 80V AOUT = 80V l 2.5 4.5 μA μA ITMR TMR Pin Pull-up Current VTMR = 1V, VFB = 1.5V, (VCC – VOUT) = 0.5V VTMR = 1V, VFB = 1.5V, (VCC – VOUT) = 75V VTMR = 1.3V, VFB = 1.5V VTMR = 1V, ΔVSNS = 60mV, (VCC – VOUT) = 0.5V VTMR = 1V, ΔVSNS = 60mV, (VCC – VOUT) = 80V l l l l l –1.5 –44 –3.5 –2.5 –195 –2.5 –50 –5.5 –4.5 –260 –4 –56 –8.5 –6.5 –315 μA μA μA μA μA TMR Pin Pull-down Current VTMR = 1V, VFB = 1V, ΔVSNS = 0V l 1.5 2.2 2.7 μA VTMR TMR Pin Thresholds FLT From High to Low, VCC = 5V to 80V VGATE From Low to High, VCC = 5V to 80V l l 1.22 0.48 1.25 0.5 1.28 0.52 V V ΔVTMR Early Warning Period From FLT going Low to GATE going Low, VCC = 5V to 80V l 80 100 120 mV VIN+ IN+ Pin Threshold l 1.22 1.25 1.28 V IIN+ IN+ Pin Input Current VIN+ = 1.25V l 0.3 1 μA IOUT OUT Pin Input Current VOUT = VCC = 12V VOUT = VCC = 12V, VSHDN = 0V l l 200 6 300 14 μA mA ΔVOUT OUT Pin High Threshold ΔVOUT = VCC – VOUT; EN From Low to High l 0.25 0.5 0.7 V VSHDN SHDN Pin Threshold VCC = 12V to 48V l 0.6 0.4 1.4 1.7 2.1 V V VOL FLT, EN Pins Output Low ISINK = 2mA ISINK = 0.1mA l l 2 300 8 800 V mV AOUT Pin Output Low ISINK = 2mA ISINK = 0.1mA l l 2 200 8 400 V mV |
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