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LTC4214-2IMS Datasheet(PDF) 2 Page - Linear Technology |
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LTC4214-2IMS Datasheet(HTML) 2 Page - Linear Technology |
2 / 32 page LTC4214-1/LTC4214-2 2 421412f SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Supply Voltage q 616 V IIN VIN Supply Current UV = OV = 2.5V q 0.8 2 mA VLKO VIN Undervoltage Lockout Coming Out of UVLO (Rising VIN) q 5.1 5.6 V VLKH VIN Undervoltage Lockout Hysteresis 0.3 V VCB Circuit Breaker Current Limit Voltage VCB = (VSENSE – VEE) q 44 50 56 mV VACL Analog Current Limit Voltage VACL = (VSENSE – VEE), SS = Open q 60 70 80 mV VFCL Fast Current Limit Voltage VFCL = (VSENSE – VEE) q 150 200 300 mV VSS SS Voltage After End of SS Timing Cycle 1.6 V RSS SS Output Impedance 73 k Ω ISS SS Pin Current UV = OV = 2.5V, VSENSE = VEE, VSS = 0V (Sourcing) –22 µA UV = OV = 0V, VSENSE = VEE, VSS = 1V (Sinking) 14 mA VOS Analog Current Limit Offset Voltage 10 mV VACL+VOS Ratio (VACL + VOS) to SS Voltage 0.05 V/V VSS IGATE GATE Pin Output Current VSENSE = VEE, VGATE = 0V (Sourcing) q –30 –50 –70 µA VSENSE – VEE = 0.15V, VGATE = 3V (Sinking) 17 mA VSENSE – VEE = 0.3V, VGATE = 1V (Sinking) 190 mA VGATE External MOSFET Gate Drive VGATE – VEE q 10 11 12 V VGATEH Gate High Threshold VGATEH = VIN – VGATE for PWRGD Status 2.8 V VGATEL Gate Low Threshold (Before Gate Ramp-Up) 0.5 V VUVHI UV Pin Threshold UV Rising q 2.137 2.25 2.363 V VUVHST UV Pin Hysteresis q 0.22 0.25 0.28 V VOVHI OV Pin Threshold OV Rising q 2.85 3 3.15 V VOVHST OV Pin Hysteresis q 0.12 0.15 0.18 V VIN ............................................................ – 0.3V to 17V Input/Output Pins (Except SENSE and DRAIN) Voltage ..........– 0.3V to 17V SENSE Pin Voltage ................................... – 0.6V to 17V Current Out of SENSE Pin (20 µs Pulse)........... –200mA DRAIN Pin Minimum Voltage .............................. – 0.3V Current into DRAIN Pin (100 µs Pulse) ................... 5mA Maximum Junction Temperature .......................... 125 °C Operating Temperature Range LTC4214-1C/LTC4214-2C ....................... 0 °C to 70°C LTC4214-1I/LTC4214-2I ................... – 40 °C to 85°C Storage Temperature Range ................. – 65 °C to 150°C Lead Temperature (Soldering, 10 sec).................. 300 °C ORDER PART NUMBER MS PART MARKING Consult LTC Marketing for parts specified with wider operating temperature ranges. LTABH LTABK LTABJ LTABL LTC4214-1CMS LTC4214-2CMS LTC4214-1IMS LTC4214-2IMS ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO All Voltages Referred to VEE (Note 1) ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, UV = OV = 2.5V unless otherwise noted. (Note 2) TJMAX = 125°C, θJA = 160°C/W 1 2 3 4 5 VIN PWRGD SS SENSE VEE 10 9 8 7 6 TIMER UV OV DRAIN GATE TOP VIEW MS PACKAGE 10-LEAD PLASTIC MSOP |
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