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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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LT1952IGN Datenblatt(PDF) 2 Page - Linear Technology |
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LT1952IGN Datenblatt(HTML) 2 Page - Linear Technology |
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2 / 24 page  LT1952/LT1952-1 2 19521fd PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS VIN (Note 8) ...............................................–0.3V to 25V SYNC, SS_MAXDC, SD_VSEC, ISENSE, OC ....– 0.3V to 6V COMP, BLANK, DELAY............................... –0.3V to 3.5V FB ................................................................– 0.3V to 3V ROSC..................................................................... –50μA VREF ....................................................................–10mA Operating Junction Temperature Range (Notes 2, 5)............................................–40°C to 125°C Storage Temperature Range...................–65°C to 150°C Lead Temperature (Soldering, 10 sec) .................. 300°C (Note 1) GN PACKAGE 16-LEAD PLASTIC SSOP 1 2 3 4 5 6 7 8 TOP VIEW 16 15 14 13 12 11 10 9 COMP FB ROSC SYNC SS_MAXDC VREF SD_VSEC GND SOUT VIN OUT PGND DELAY OC ISENSE BLANK TJMAX = 125°C, θJA = 110°C/W, θJC = 40°C/W ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LT1952EGN#PBF LT1952EGN#TRPBF 1952 16-Lead Plastic SSOP –40°C to 125°C LT1952IGN#PBF LT1952IGN#TRPBF 1952I 16-Lead Plastic SSOP –40°C to 125°C LT1952EGN-1#PBF LT1952EGN-1#TRPBF 19521 16-Lead Plastic SSOP –40°C to 125°C LT1952IGN-1#PBF LT1952IGN-1#TRPBF 1952I1 16-Lead Plastic SSOP –40°C to 125°C LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LT1952EGN LT1952EGN#TR 1952 16-Lead Plastic SSOP –40°C to 125°C LT1952IGN LT1952IGN#TR 1952I 16-Lead Plastic SSOP –40°C to 125°C LT1952EGN-1 LT1952EGN-1#TR 19521 16-Lead Plastic SSOP –40°C to 125°C LT1952IGN-1 LT1952IGN-1#TR 1952I1 16-Lead Plastic SSOP –40°C to 125°C Consult LTC Marketing for parts specified with wider operating temperature ranges. 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/ PARAMETER CONDITIONS MIN TYP MAX UNITS PWM CONTROLLER Operational Input Voltage I(VREF) = 0μA l VIN OFF 25 V VIN Quiescent Current I(VREF) = 0μA, ISENSE = OC = Open 5.2 6.5 mA VIN Start-up Current (LT1952) FB = 0V, SS_MAXDC = 0V (Notes 4, 9) l 460 700 μA VIN Start-up Current (LT1952-1) FB = 0V, SS_MAXDC = 0V (Notes 4, 9) l 400 575 μA VIN Shutdown Current SD_VSEC = 0V 240 350 μA SD_VSEC Threshold 10V < VIN < 25V l 1.261 1.32 1.379 V SD_VSEC (ON) Current SD_VSEC = SD_VSEC Threshold + 100mV 0 μA SD_VSEC (OFF) Current SD_VSEC = SD_VSEC Threshold – 100mV 8.3 10 11.7 μA The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. COMP = open, FB = 1.4V, ROSC = 178k, SYNC = 0V, SS_MAXDC = VREF, VREF = 0.1μF, SD_VSEC = 2V, BLANK = 121k, DELAY = 121k, ISENSE = 0V, OC = 0V, OUT = 1nF, VIN = 15V, SOUT = open, unless otherwise specified. ELECTRICAL CHARACTERISTICS |
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