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LTC4216 Datasheet(PDF) 3 Page - Linear Technology |
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LTC4216 Datasheet(HTML) 3 Page - Linear Technology |
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3 / 24 page  LTC4216 4216f 3 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS IGATE(UP) GATE Pull Up Current Gate Drive On, VGATE = 0V, VON = 2V ● – 16 – 20 – 26 µA IGATE(DN) GATE Pull Down Current Gate Drive Off, VGATE = 5V, VON = 0.6V ● 100 600 1500 µA VSENSEP - VSENSEN = 55mV, VGATE = 5V ● 1 5 20 mA VSENSEP - VSENSEN = 100mV, VGATE = 5V ● 15 50 100 mA ΔVGATE External N-Channel Gate Drive 2.3V ≤ VCC < 3V ● 4.0 5.0 7.9 V (VGATE – VSENSEN) 3V ≤ VCC ≤ 6V ● 4.5 6.2 7.9 V VGATE(TH) GATE Pin Threshold Voltage VGATE Falling ● 0.15 0.2 0.3 V VSS(CLP) SS Pin Clamp Voltage After End of SS Timing Cycle ● 1.3 1.65 2.0 V VSS(TH) SS Pin Threshold Voltage VSS Falling ● 0.15 0.2 0.35 V ISS(UP) SS Pull Up Current VON = 2V, VSS = 1.2V, VFB = 2V ● – 7 – 10 – 13 µA VON = 2V, VFB = 0V ● –0.3 – 1 – 2 µA ISS(DN) SS Pull Down Current VON = 0V, VSS = 2V 8 mA VFB(TH) FB Pin Threshold Voltage VFB Falling ● 0.593 0.602 0.611 V ΔVFB(LINEREG) FB Pin Threshold Line Regulation 2.3V ≤ VCC ≤ 6V ● 0.2 3 mV ΔVFB(HYST) FB Pin Hysteresis 3 mV IFB(IN) FB Pin Input Current VFB = 1.2V, VCC = 6V ● 0 ±1 µA VON(TH) ON Pin Threshold Voltage VON Rising ● 0.77 0.8 0.83 V ΔVON(HYST) ON Pin Hysteresis ● 40 80 130 mV VON(FC) ON Pin Fault Clear Threshold Voltage VON Falling ● 0.36 0.4 0.44 V ION(IN) ON Pin Input Current VON = 1.2V, VCC = 6V ● 0 ±1 µA VTMR(TH) TIMER Pin Threshold Voltage VTIMER Rising ● 1.216 1.253 1.291 V VTIMER Falling ● 0.15 0.2 0.35 V ITMR(UP) Timer Pull Up Current Timer On, VON = 2V, VTIMER = 1V ● –1.5 –2 –2.5 µA ITMR(DN) Timer Pull Down Current Timer Off, VON = 0V, VTIMER = 2V 8 mA VFILT(TH) FILTER Pin Threshold Voltage VFILTER Rising ● 1.216 1.253 1.291 V VFILTER Falling ● 0.15 0.2 0.35 V IFILT(UP) Filter Pull Up Current VON = 2V, VFILTER = 1V, In Fault Mode ● – 45 – 60 – 75 µA IFILT(DN) Filter Pull Down Current VON = 2V, VFILTER = 1V, No Faults ● 1.5 2.4 3.3 µA VON = 0V, VFILTER = 2V, In Reset Mode 8 mA V⎯F⎯A⎯U⎯L⎯T(TH) ⎯F⎯A⎯U⎯L⎯T Pin Threshold Voltage V⎯F⎯A⎯U⎯L⎯T Falling ● 1.216 1.253 1.291 V ΔV⎯F⎯A⎯U⎯L⎯T(HYST) ⎯F⎯A⎯U⎯L⎯T Pin Hysteresis 10 mV I⎯F⎯A⎯U⎯L⎯T(UP) ⎯F⎯A⎯U⎯L⎯T Pin Current VON = 0V, V⎯F⎯A⎯U⎯L⎯T = 1.5V ● –3 –5 –7 µA VOL Output Low Voltage (⎯R⎯E⎯S⎯E⎯T, ⎯F⎯A⎯U⎯L⎯T) I⎯R⎯E⎯S⎯E⎯T = I⎯F⎯A⎯U⎯L⎯T = 1.6mA ● 0.15 0.4 V I⎯R⎯E⎯S⎯E⎯T(LEAK) ⎯R⎯E⎯S⎯E⎯T Pin Input Leakage Current V⎯R⎯E⎯S⎯E⎯T = VCC = 6V 0 ±10 µA tCB(TRIP) Circuit Breaker Trip to Gate (VSENSEP - VSENSEN) = Step 0V to 30mV, ● 120 240 360 µs Discharging VSENSEP = VCC, FILTER = 10nF to GND t⎯F⎯A⎯U⎯L⎯T(EXT) ⎯F⎯A⎯U⎯L⎯T Low to Gate Discharging V⎯F⎯A⎯U⎯L⎯T = Step 2V to 0V ● 10 20 µs tFILTER FILTER High to Gate Discharging VFILTER = Step 0V to 2V ● 20 40 µs tRST(ONLO) Circuit Breaker Reset Delay Time, VON = Step 2V to 0V ● 30 60 µs ON Low to ⎯F⎯A⎯U⎯L⎯T High tRST(VCCLO) Circuit Breaker Reset Delay Time, VON = 2V, VCC = Step 3.3V to 1.8V ● 50 100 µs VCC Low to ⎯F⎯A⎯U⎯L⎯T High tOFF Turn-Off Time, ON Low to GATE Discharging VON = Step 2V to 0.6V 15 µs The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 3.3V, unless otherwise noted. (Note 2) ELECTRICAL CHARACTERISTICS Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: All currents into device pins are positive; all currents out of the device pins are negative; all voltages are referenced to GND unless otherwise specified. |
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