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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LT8551 датащи(PDF) 3 Page - Analog Devices |
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LT8551 датащи(HTML) 3 Page - Analog Devices |
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3 / 32 page  LT8551 3 Rev 0 For more information www.analog.com ELECTRICAL CHARACTERISTICS PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Operating Voltage Range For Min Spec, VCC, REG = 0V l 3.6 80 V VIN Quiescent Current REG = VCC = 5V, REGDRV, REGIS Floating 800 µA VIN Quiescent Current in Shutdown 2 µA VCC Quiescent Current Not Switching 5 mA VCC Undervoltage Lockout VCC Falling, REG = VCC l 3.3 3.55 3.8 V VCC Undervoltage Lockout Hysteresis REG = VCC 0.1 V SHDN Input Voltage High SHDN Falling l 1.05 1.15 1.25 V SHDN Input Voltage High Hysteresis 60 mV SHDN Input Voltage Low Device Disabled, Low Quiescent Current, VCC = REG = 3V l 0.3 V SHDN Pin Bias Current VSHDN = 3V VSHDN = 12V 0 8.5 1 20 µA µA MODE Low Falling Threshold Slave LT8551 l 0.5 V MODE High Rising Threshold Slave LT8551 l 4.5 V MODE Output Voltage Low Master LT8551, 200µA into MODE pin 50 mV MODE Output Voltage High Master LT8551, 20µA out of MODE pin 4.8 V MODE Pin Impedance in Middle State Master LT8551 9 kΩ ENOUT Output Voltage Low Master LT8551, 1mA into ENOUT Pin, VCC, REG in UVLO 60 mV ENOUT Leakage Current ENOUT = 5V, REG = VCC = 3V 0.2 1 µA ENOUT Rising Threshold 2.1 V ENOUT Threshold Hysteresis 0.4 V Current Sensing Maximum Positive Current Sense Voltage, (ISPn –ISNn) ILIM = 0V, ISNn = 12V, ISPn Rising ILIM = REG, ISNn = 12V, ISPn Rising ILIM = Float, ISNn = 12V, ISPn Rising l l l 27.0 56 84.5 30 60 90 32.5 64 95.5 mV mV mV Maximum Negative Current Sense Voltage, (ISNn –ISPn) ILIM = 0V, ISNn = 12V, ISPn Falling ILIM = REG, ISNn = 12V, ISPn Falling ILIM = Float, ISNn = 12V, ISPn Falling l l l 26.5 55.5 84 30 60 90 33 64.5 96 mV mV mV ISP, ISN Common Mode Operating Voltage Range l 0 80 V ISPn, ISNn Common Mode Operating Voltage Range l 0 80 V ILIM High Rising Threshold l 4.65 V ILIM High Threshold Hysteresis 90 mV ILIM Low Falling Threshold l 0.3 V ILIM Low Threshold Hysteresis 80 mV ILIM Impedance at Floating 11 kΩ IAMPP Output Voltage (ISP–ISN) = 30mV, ILIM = 0V, Master LT8551, ISP = 12V (ISP–ISN) = 0mV, ILIM = 0V, Master LT8551, ISP = 12V (ISP–ISN) = –30mV, ILIM = 0V, Master LT8551, ISP = 12V (ISP–ISN) = 60mV, ILIM = REG, Master LT8551, ISP = 12V (ISP–ISN) = 0mV, ILIM = REG, Master LT8551, ISP = 12V (ISP–ISN) = –60mV, ILIM = REG, Master LT8551, ISP = 12V (ISP–ISN) = 90mV, ILIM = Float, Master LT8551, ISP = 12V (ISP–ISN) = 0mV, ILIM = Float, Master LT8551, ISP = 12V (ISP–ISN) = –90mV, ILIM = Float, Master LT8551, ISP = 12V l l l l l l l l l 2.33 1.33 0.33 2.33 1.35 0.34 2.33 1.35 0.34 2.4 1.4 0.4 2.4 1.4 0.4 2.4 1.4 0.4 2.47 1.47 0.47 2.47 1.45 0.46 2.47 1.45 0.46 V V V V V V V V V The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, REG = 5V, VCC = 5V, SHDN = High, unless otherwise noted. |
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