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LT1641-1 数据表(PDF) 2 Page - Linear Technology |
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LT1641-1 数据表(HTML) 2 Page - Linear Technology |
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2 / 24 page  2 4251b12f LTC4251B/LTC4251B-1/ LTC4251B-2 PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS SENSE 1 VEE 2 VIN 3 6 GATE 5 UV/OV* 4 TIMER TOP VIEW S6 PACKAGE 6-LEAD PLASTIC SOT-23 *UV FOR LTC4251B-2 TJMAX = 125°C, θJA = 192°C/W ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VZ VIN to VEE Zener Voltage IIN = 2mA l 11.5 13 14.5 V rZ VIN to VEE Zener Dynamic Impedance IIN = 2mA to 30mA 5 Ω IIN VIN Supply Current UV/OV = 4V, VIN = (VZ – 0.3V) l 0.8 2 mA VLKO VIN Undervoltage Lockout Coming Out of UVLO (Rising VIN) l 9.2 11.5 V VLKH VIN Undervoltage Lockout Hysteresis 1 V VCB Circuit Breaker Current Limit Voltage VCB = (VSENSE – VEE) l 40 50 60 mV VACL Analog Current Limit Voltage VACL = (VSENSE – VEE) l 80 100 120 mV VFCL Fast Current Limit Voltage VFCL = (VSENSE – VEE) l 150 200 300 mV IGATE GATE Pin Output Current UV/OV = 4V, VSENSE = VEE, VGATE = 0V (Sourcing) UV/OV = 4V, VSENSE – VEE = 0.15V, VGATE = 3V (Sinking) UV/OV = 4V, VSENSE – VEE = 0.3V, VGATE = 1V (Sinking) l 40 58 17 190 80 μA mA mA VGATE External MOSFET Gate Drive VGATE – VEE, IIN = 2mA l 10 12 VZ V The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 2, 3) ORDER INFORMATION Current into VIN (100μs Pulse) .............................100mA Minimum VIN Voltage............................................ – 0.3V Gate, UV/OV, Timer Voltage........................ –0.3V to 16V Sense Voltage ............................................ –0.6V to 16V Current Out of Sense Pin (20μs Pulse).............. –200mA Maximum Junction Temperature .......................... 125°C Operating Temperature Range LTC4251BC/LTC4251BC-1/LTC4251BC-2....0°C to 70°C LTC4251BI/LTC4251BI-1/LTC4251BI-2 .. –40°C to 85°C Storage Temperature Range .................. –65°C to 150°C Lead Temperature (Soldering, 10 sec)................... 300°C (Note 1), All Voltages are Referred to VEE Lead Free Finish TAPE AND REEL (MINI) TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC4251BCS6#TRMPBF LTC4251BCS6#TRPBF LTGCT 6-Lead Plastic SOT-23 0°C to 70°C LTC4251BIS6#TRMPBF LTC4251BIS6#TRPBF LTGCT 6-Lead Plastic SOT-23 –40°C to 85°C LTC4251BCS6-1#TRMPBF LTC4251BCS6-1#TRPBF LTGDV 6-Lead Plastic SOT-23 0°C to 70°C LTC4251BIS6-1#TRMPBF LTC4251BIS6-1#TRPBF LTGDV 6-Lead Plastic SOT-23 –40°C to 85°C LTC4251BCS6-2#TRMPBF LTC4251BCS6-2#TRPBF LTGDW 6-Lead Plastic SOT-23 0°C to 70°C LTC4251BIS6-2#TRMPBF LTC4251BIS6-2#TRPBF LTGDW 6-Lead Plastic SOT-23 –40°C to 85°C TRM = 500 pieces. *Temperature grades are identified by a label on the shipping container. Consult LTC Marketing for parts specified with wider operating temperature ranges. Consult LTC Marketing for information on lead based finish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/ |
类似零件编号 - LT1641-1 |
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类似说明 - LT1641-1 |
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