Datasheet LT8311 (Analog Devices) - 3

LT8311
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
CSW, FSW, CSP ... –0.3V to 150V TOP VIEW SYNC ...–12V to 12V CSW 1 20 CSP VIN, PGOOD .. –0.3V to 30V INTV FSW 3 18 CSN CC, PMODE ... –0.3V to 18V FB, SS, COMP ... –0.3V to 2.5V TIMER ... –0.3V to 1.5V FG 5 21 16 CG GND CSN ... –0.3V to 0.4V INTVCC 6 15 SYNC VIN 7 14 SS OPTO, TIMER Short-Circuit PMODE 8 13 PGOOD Current Duration .. Infinite (Note 5) OPTO 9 12 TIMER Operating Junction Temperature Range COMP 10 11 FB LT8311E (Notes 2, 3) ... –40°C to 125°C LT8311I (Notes 2, 3) .. –40°C to 125°C FE PACKAGE 20-LEAD PLASTIC TSSOP LT8311H (Notes 2, 3) ... –40°C to 150°C θJA = 38°C/W, θJC = 10°C/W EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB LT8311MP (Notes 2, 3) .. –55°C to 150°C Storage Temperature Range .. –65°C to 150°C Lead Temperature (Soldering, 10sec)..300°C
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT8311EFE#PBF LT8311EFE#TRPBF LT8311FE 20-Lead Plastic TSSOP –40°C to 125°C LT8311IFE#PBF LT8311IFE#TRPBF LT8311FE 20-Lead Plastic TSSOP –40°C to 125°C LT8311HFE#PBF LT8311HFE#TRPBF LT8311FE 20-Lead Plastic TSSOP –40°C to 150°C LT8311MPFE#PBF LT8311MPFE#TRPBF LT8311FE 20-Lead Plastic TSSOP –55°C to 150°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. 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/ 8311f For more information www.linear.com/LT8311 3 Document Outline Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation FUNDAMENTALS OF FORWARD CONVERTER OPERATION IN CCM LT8311 SYNCHRONOUS CONTROL SCHEMES PREACTIVE MODE SYNCHRONOUS CONTROL SYNC MODE SYNCHRONOUS CONTROL OPTO-COUPLER CONTROL Applications Information VIN BIAS SUPPLY INTVCC BIAS SUPPLY LT8311 OPTO CONTROL FUNDAMENTALS LT8311 SYNCHRONOUS CONTROL FUNDAMENTALS PREACTIVE MODE SYNCHRONOUS CONTROL SYNC MODE SYNCHRONOUS CONTROL Typical Applications Package Description Typical Application Related Parts