Datasheet LT3752, LT3752-1 (Analog Devices) - 4

LT3752/LT3752-1
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE AUTOMOTIVE PRODUCTS**
LT3752EFE#WPBF LT3752EFE#WTRPBF LT3752FE 38-Lead Plastic TSSOP –40°C to 125°C LT3752IFE#WPBF LT3752IFE#WTRPBF LT3752FE 38-Lead Plastic TSSOP –40°C to 125°C LT3752HFE#WPBF LT3752HFE#WTRPBF LT3752FE 38-Lead Plastic TSSOP –40°C to 150°C LT3752EFE-1#WPBF LT3752EFE-1#WTRPBF LT3752FE-1 38-Lead Plastic TSSOP –40°C to 125°C LT3752IFE-1#WPBF LT3752IFE-1#WTRPBF LT3752FE-1 38-Lead Plastic TSSOP –40°C to 125°C LT3752HFE-1#WPBF LT3752HFE-1#WTRPBF LT3752FE-1 38-Lead Plastic TSSOP –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.
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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 = 12V, UVLO_VSEC = 2.5V. PARAMETER CONDITIONS MIN TYP MAX UNITS
Operational Input Voltage (LT3752) l 6.5 100 V Operational Input Voltage (LT3752-1) l 10.5 16 V VIN(ON) (LT3752) l 5.8 6.4 V VIN(OFF) (LT3752) 5.5 5.9 V VIN(ON/OFF) Hysteresis (LT3752) l 0.1 0.3 0.5 V VIN(ON) (LT3752-1) l 9.5 10.4 V VIN(OFF) (LT3752-1) 7.6 V VIN(ON/OFF) Hysteresis (LT3752-1) l 1.61 1.9 2.19 V VIN Start-Up Current (LT3752-1) (Notes 6, 7) l 170 265 µA VIN Quiescent Current (Housekeeping Controller HCOMP = 1V (Housekeeping Not Switching), l 4 6.2 mA Only) (LT3752) HFB = 0.85V VIN Quiescent Current (Housekeeping Controller HCOMP = 1V (Housekeeping Not Switching), l 3 4.6 mA Only) (LT3752-1) HFB = 0.85V VIN Quiescent Current (Housekeeping Controller + HCOMP = 1V (Housekeeping Not Switching), 7.5 9.5 mA Forward Controller) HFB = 1.35V, FB = 1.5V (Main Loop Not Switching) UVLO_VSEC Micropower Threshold (VSD) IVIN < 20µA l 0.2 0.4 0.6 V VIN Shutdown Current (Micropower) UVLO_VSEC = 0.2V 20 40 µA UVLO_VSEC Threshold (VSYS_UV) l 1.180 1.250 1.320 V VIN Shutdown Current (After Soft-Stop) UVLO_VSEC = 1V 165 220 µA UVLO_VSEC (ON) Current UVLO_VSEC = VSYS_UV + 50mV 0 µA UVLO_VSEC (OFF) Current UVLO_VSEC = VSYS_UV – 50mV Hysteresis Current l 4.0 5 6.0 µA With One-Shot Communication Current (Note 15) 25 µA OVLO (Rising) (No Switching, Reset SS1) l 1.220 1.250 1.280 V OVLO (Falling) (Restart SS1) 1.215 V Rev. C 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Table of Contents Absolute Maximum Ratings Order Information Pin Configuration Order Information Electrical Characteristics Pin Functions Block Diagram Timing Diagrams Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts