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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC4355 датащи(PDF) 3 Page - Analog Devices |
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LTC4355 датащи(HTML) 3 Page - Analog Devices |
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3 / 24 page  LT4356-3 3 Rev D For more information www.analog.com 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 4 80 V ICC VCC Supply Current VSHDN = Float l 1 1.5 mA VSHDN = 0V, IN+ = 1.3V LT4356C, LT4356I LT4356H, LT4356MP l l 7 7 7 25 30 40 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; LT4356C, LT4356I, LT4356H VGATE = 12V; VCC = 12V; LT4356MP VGATE = 48V; VCC = 48V l l l –4 –4 –4.5 –23 –23 –30 –36 –38 –50 µA 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 4 1.5 150 10 5 mA mA mA VFB FB Pin Servo Voltage VGATE = 12V, VOUT = 12V; LT4356C, LT4356I VGATE = 12V, VOUT = 12V; LT4356H, LT4356MP 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; LT4356C, LT4356I ΔVSNS = (VCC – VSNS), VCC = 12V; LT4356H ΔVSNS = (VCC – VSNS), VCC = 12V; LT4356MP ΔVSNS = (VCC – VSNS), VCC = 48V; LT4356C, LT4356I ΔVSNS = (VCC – VSNS), VCC = 48V; LT4356H ΔVSNS = (VCC – VSNS), VCC = 48V; LT4356MP l l l l l l 45 42.5 42.5 46 43 43 50 50 50 51 51 51 55 55 56 56 56 57 mV mV mV mV mV mV ISNS SNS Pin Input Current VSNS = VCC = 12V to 48V l 5 10 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, (VCC – VOUT) = 75V 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 –325 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 l 1.22 1.25 1.28 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 VOL FLT, EN, AOUT Pins Output Low ISINK = 2mA ISINK = 0.1mA l l 2 300 8 800 V mV IOUT OUT Pin Input Current VOUT = VCC = 12V; LT4356C, LT4356I, LT4356H VOUT = VCC = 12V; LT4356MP VOUT = VCC = 12V, VSHDN = 0V l l l 200 200 6 300 310 14 µA µA mA ΔVOUT OUT Pin High Threshold ΔVOUT = VCC – VOUT; EN From Low to High l 0.25 0.5 0.7 V |
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