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LTC4357 Datasheet(PDF) 3 Page - Linear Technology |
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LTC4357 Datasheet(HTML) 3 Page - Linear Technology |
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3 / 14 page  LTC4357 4357fd electrical characteristics Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VOUT = VDD, VDD = 9V to 80V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VDD Operating Supply Range l 9 80 V IDD Supply Current l 0.5 1.25 mA IIN IN Pin Current VIN = VOUT ±1V l 150 350 500 µA IOUT OUT Pin Current VIN = VOUT ±1V l 80 210 µA DVGATE External N-Channel Gate Drive (VGATE – VIN) VDD, VOUT = 20V to 80V VDD, VOUT = 9V to 20V l l 10 4.5 12 6 15 15 V V IGATE(UP) External N-Channel Gate Pull-Up Current VGATE = VIN, VIN – VOUT = 0.1V l –14 –20 –26 µA IGATE(DOWN) External N-Channel Gate Pull-Down Current in Fault Condition VGATE = VIN + 5V l 1 2 A tOFF Gate Turn-Off Time VIN – VOUT = 55mV –| ––1V, VGATE – VIN < 1V, CGATE = 0pF l 300 500 ns DVSD Source-Drain Regulation Voltage (VIN – VOUT) VGATE – VIN = 2.5V l 10 25 55 mV Note 2: All currents into pins are positive, all voltages are referenced to GND unless otherwise specified. Note 3: An internal clamp limits the GATE pin to a minimum of 10V above IN or 100V above GND. Driving this pin to voltages beyond this clamp may damage the device. typical perForMance characteristics VDD Current (IDD vs VDD) IN Current (IIN vs VIN) OUT Current (IOUT vs VOUT) VDD (V) 0 400 600 80 4357 G01 200 0 20 40 60 800 VDD = VOUT = VIN ± 1V VIN (V) 0 200 300 80 4357 G02 100 0 20 40 60 400 VDD = VOUT = VIN + 1V VDD = VOUT = VIN – 1V VOUT (V) 0 60 120 80 4357 G03 0 20 40 60 180 30 90 150 VDD = VOUT = VIN + 1V VDD = VOUT = VIN – 1V |
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Similar Description - LTC4357 |
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