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LT3474 Datasheet(PDF) 3 Page - Analog Devices |
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LT3474 Datasheet(HTML) 3 Page - Analog Devices |
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3 / 28 page  LT3755/LT3755-1/LT3755-2 3 Rev. E For more information www.analog.com ORDER INFORMATION AUTOMOTIVE PRODUCTS** LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT3755EMSE#WPBF LT3755EMSE#WTRPBF 3755 16-Lead Plastic MSOP –40°C to 125°C LT3755IMSE#WPBF LT3755IMSE#WTRPBF 3755 16-Lead Plastic MSOP –40°C to 125°C LT3755EMSE-1#WPBF LT3755EMSE-1#WTRPBF 37551 16-Lead Plastic MSOP –40°C to 125°C LT3755IMSE-1#WPBF LT3755IMSE-1#WTRPBF 37551 16-Lead Plastic MSOP –40°C to 125°C LT3755EMSE-2#WPBF LT3755EMSE-2#WTRPBF 37552 16-Lead Plastic MSOP –40°C to 125°C LT3755IMSE-2#WPBF LT3755IMSE-2#WTRPBF 37552 16-Lead Plastic MSOP –40°C to 125°C LT3755HMSE-2#WPBF LT3755HMSE-2#WTRPBF 37552 16-Lead Plastic MSOP –40°C to 150°C LT3755JMSE-2#WPBF LT3755JMSE-2#WTRPBF 37552 16-Lead Plastic MSOP –40°C to 150°C Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix. **Versions of this part are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. These models are designated with a #W suffix. Only the automotive grade products shown are available for use in automotive applications. Contact your local Analog Devices account representative for specific product ordering information and to obtain the specific Automotive Reliability reports for these models. ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 24V, SHDN/UVLO = 24V, CTRL = 2V, PWM = 5V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Minimum Operating Voltage VIN Tied to INTVCC l 4.5 V VIN Shutdown IQ SHDN/UVLO = 0V, PWM = 0V SHDN/UVLO = 1.15V, PWM = 0V 0.1 1 5 µA µA VIN Operating IQ (Not Switching) PWM = 0V 1.4 1.7 mA VREF Voltage 100µA ≤ IVREF ≤ 0µA (E, I, H-Grades) 80µA ≤ IVREF ≤ 0µA (J-Grade only) l l 1.965 1.965 2.00 2.00 2.045 2.045 V V VREF Line Regulation 4.5V ≤ VIN ≤ 40V 0.006 %/V SENSE Current Limit Threshold l 98 108 118 mV SENSE Input Bias Current Current Out of Pin 40 µA SS Pull-Up Current Current Out of Pin 8 10 13 µA Error Amplifier ISP/ISN Full-Scale Current Sense Threshold FB = 0V, ISP = 48V J-Grade l l 96 95.5 100 100 103 103 mV mV ISP/ISN Full-Scale Current Sense Threshold at CTRL = 0V CTRL = 0V, FB = 0V, ISP = 48V –12 –9.5 –7 mV CTRL Pin Range for Current Sense Threshold Adjustment l 0 1.1 V CTRL Input Bias Current Current Out of Pin 50 100 nA LED Current Sense Amplifier Input Common Mode Range (VISN) l 2.9 75 V ISP/ISN Short-Circuit Threshold ISN = 0V 115 150 200 mV ISP/ISN Short-Circuit Fault Sensing Common Mode Range (VISN) l 0 3 V ISP/ISN Input Bias Current (Combined) PWM = 5V (Active), ISP = ISN = 48V PWM = 0V (Standby), ISP = ISN = 48V 55 0 0.1 µA µA |
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