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LT3759 Datasheet(PDF) 3 Page - Linear Technology |
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LT3759 Datasheet(HTML) 3 Page - Linear Technology |
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3 / 44 page  LT8710 3 8710f For more information www.linear.com/LT8710 elecTrical characTerisTics PARAMETER CONDITIONS MIN TYP MAX UNITS Minimum Operating Input Voltage VIN OR VBIAS VIN if VBIAS ≥ 4.5V l 0 4.25 4.5 V V Quiescent Current, IVIN VBIAS = VISN = 7.5V, Not Switching VBIAS = 6.3V, VINTVEE = VISN = 0V, Not Switching 4 5.5 5.5 7.5 mA mA Quiescent Current in Shutdown VEN/FBIN = 0V 0 1 µA EN/FBIN Active Mode EN/FBIN Rising l 1.64 1.7 1.76 V EN/FBIN Chip Enable EN/FBIN Rising EN/FBIN Falling l l 1.22 1.18 1.3 1.26 1.38 1.34 V V EN/FBIN Chip Enable Hysteresis 44 mV EN/FBIN Input Voltage Low Shutdown Mode l 0.3 V EN/FBIN Pin Bias Current VEN/FBIN = 3V VEN/FBIN = 1.7V VEN/FBIN = 1.6V VEN/FBIN = 0V 14 13 44 19.5 17.5 0 60 25 22.5 0.1 µA µA µA µA SS Charge Current VSS = 0V, Current Flows Out of SS Pin l 7 10.1 13.8 µA SS Low Detection Voltage Part Exiting Undervoltage Lockout l 18 50 82 mV SS Hi Detection Voltage SS Rising SS Falling 1.5 1.3 1.8 1.7 2.1 2.05 V V SS Hi Detection Hysteresis 100 mV Low Dropout Regulators, INTVCC and INTVEE INTVCC Voltage IINTVCC = 10mA l 6.2 6.3 6.4 V INTVCC Undervoltage Lockout INTVCC Rising INTVCC Falling l l 3.88 3.5 4 3.73 4.12 3.95 V V INTVCC Undervoltage Lockout Hysteresis 270 mV INTVCC Dropout Voltage VIN – INTVCC, VIN = 6V, VBIAS = 0V, IINTVCC = 10mA VBIAS – VINTVCC, VIN = 0V, VBIAS = 6V, IINTVCC = 10mA 255 280 mV mV INTVCC Load Regulation VIN = 12V, VBIAS = 0V, IINTVCC = 0mA to 80mA VIN = 0V, VBIAS = 12V, IINTVCC = 0mA to 40mA –0.44 –0.34 –2 –2 % % INTVCC Line Regulation 10V ≤ VIN ≤ 80V, VBIAS = 0V, IINTVCC = 10mA 10V ≤ VBIAS ≤ 80V, VIN = 0V, IINTVCC = 10mA –0.003 –0.006 –0.03 –0.03 %/V %/V INTVCC Maximum External Load Current 5 mA INTVEE Voltage, VBIAS – VINTVEE IINTVEE = 10mA l 6.03 6.18 6.33 V INTVEE Undervoltage Lockout, VBIAS – VINTVEE VBIAS – VINTVEE Rising VBIAS – VINTVEE Falling l l 3.24 2.94 3.42 3.22 3.6 3.48 V V INTVEE Undervoltage Lockout Hysteresis, VBIAS – VINTVEE 200 mV INTVEE Dropout Voltage, VINTVEE VBIAS = 6V, IINTVEE = 10mA 0.75 V Control Loops (Refer to Block Diagram to Locate Amplifiers) Current Limit Voltage, VCSP – VCSN VFBX = 1.1V, Minimum Duty Cycle VFBX = 1.1V, Maximum Duty Cycle l l 46 23 50 31 54 38 mV mV VFBX = 1.4V, MODE = 0V, Minimum Duty Cycle VFBX = 1.4V, MODE = 0V, Maximum Duty Cycle l l –23 –38 –32 –51 –41 –65 mV mV FBX Positive Output Regulation Voltage, EA1 l 1.191 1.213 1.237 V FBX Negative Output Regulation Voltage, EA2 l –2 9.6 21 mV The l denotes the specifications which apply over the full operating temperature range, otherwise specifications for each channel are at TA = 25°C. VIN = 12V, VEN/FBIN = 12V, VBIAS = 12V, unless otherwise noted (Note 2). |
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