Datasheet LT4356-1, LT4356-2 (Analog Devices) - 4

ManufacturerAnalog Devices
DescriptionSurge Stopper
Pages / Page26 / 4 — ELECTRICAL CHARACTERISTICS The. denotes the specifications which apply …
RevisionC
File Format / SizePDF / 480 Kb
Document LanguageEnglish

ELECTRICAL CHARACTERISTICS The. denotes the specifications which apply over the full operating

ELECTRICAL CHARACTERISTICS The denotes the specifications which apply over the full operating

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LT4356-1/LT4356-2
ELECTRICAL CHARACTERISTICS 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. 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, LT4356-1 7 25 µA LT4356I-1, LT4356C-1 l 7 30 µA LT4356H-1 l 7 40 µA VSHDN = 0V, IN+ = 1.3V, LT4356-2 60 70 µA LT4356I-2, LT4356C-2 l 60 100 µA LT4356H-2 l 60 250 µA IR Reverse Input Current VSNS = VCC = –30V, SHDN Open l 0.3 1 mA VSNS = VCC = VSHDN = –30V l 0.8 2 mA ΔVGATE GATE Pin Output High Voltage VCC = 4V; (VGATE – VOUT) l 4.5 8 V 80V ≥ VCC ≥ 8V; (VGATE – VOUT) l 10 16 V IGATE(UP) GATE Pin Pull-Up Current VGATE = 12V; VCC = 12V l –4 –23 –36 µA VGATE = 48V; VCC = 48V l –4.5 –30 –50 µA IGATE(DN) GATE Pin Pull-Down Current Overvoltage, VFB = 1.4V, VGATE = 12V l 75 150 mA Overcurrent, VCC – VSNS = 120mV, VGATE = 12V l 5 10 mA Shutdown Mode, VSHDN = 0V, VGATE = 12V l 1.5 5 mA VFB FB Pin Servo Voltage VGATE = 12V; VOUT = 12V, LT4356I, LT4356C l 1.225 1.25 1.275 V VGATE = 12V; VOUT = 12V, LT4356H l 1.215 1.25 1.275 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 l 45 50 55 mV ΔVSNS = (VCC – VSNS), VCC = 12V, LT4356H l 42.5 50 55 mV ΔVSNS = (VCC – VSNS), VCC = 48V, LT4356I, LT4356C l 46 51 56 mV ΔVSNS = (VCC – VSNS), VCC = 48V, LT4356H l 43 51 56 mV ISNS SNS Pin Input Current VSNS = VCC = 12V to 48V l 5 10 22 µA ILEAK FLT, EN Pins Leakage Current FLT, EN = 80V l 2.5 µA AOUT Pin Leakage Current AOUT = 80V 4.5 µA ITMR TMR Pin Pull-up Current VTMR = 1V, VFB = 1.5V, (VCC – VOUT) = 0.5V l –1.5 –2.5 –4 µA VTMR = 1V, VFB = 1.5V, (VCC – VOUT) = 75V l –44 –50 –56 µA VTMR = 1.3V, VFB = 1.5V l –3.5 –5.5 –8.5 µA VTMR = 1V, ΔVSNS = 60mV, (VCC – VOUT) = 0.5V l –2.5 –4.5 –6.5 µA VTMR = 1V, ΔVSNS = 60mV, (VCC – VOUT) = 80V l –195 –260 –315 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 VGATE From Low to High, VCC = 5V to 80V l 0.48 0.5 0.52 V ΔVTMR Early Warning Period From FLT going Low to GATE going Low, VCC = 5V to 80V l 80 100 120 mV V + IN IN+ Pin Threshold l 1.22 1.25 1.28 V I + + IN IN+ Pin Input Current VIN = 1.25V l 0.3 1 µA VOL FLT, EN Pins Output Low ISINK = 2mA l 2 8 V ISINK = 0.1mA l 300 800 mV AOUT Pin Output Low ISINK = 2mA l 2 8 V ISINK = 0.1mA l 200 400 mV IOUT OUT Pin Input Current VOUT = VCC = 12V l 200 300 µA VOUT = VCC = 12V, VSHDN = 0V l 6 14 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 0.6 1.7 V l 0.4 2.1 V Rev. C 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts