LTC3777 ABSOLUTE MAXIMUM RATINGSPIN CONFIGURATION(Note 1) Input Supply Voltage (V TOP VIEW IN), BVIN .. 150V to –0.3V Topside Driver Voltage CC V CC VSET BOOST1, BOOST2 ...161V to –0.3V V FB SS V5 DRV EXT DR VINOV BG1 NC SW1 TG1 BOOST1 Switch Voltage SW1, SW2 .. 150V to –5V 48 47 46 45 44 43 42 41 40 39 38 37 RUN, BRUN .. 150V to –0.3V IAVGSNSP, IAVGSNSN ..150V to –10V BRUN 1 36 VIN NC 2 35 NC VINSNS, VOUTSNS .. 150V to –0.3V BSW 3 34 VINSNS EXTV NC 4 33 NC CC Voltage .. 36V to –0.3V BVIN 5 32 VOUTSNS DRV NC 6 49 31 NC CC Voltage ..11V to –0.3V BOV 7 PGND 30 IAVGSNSN BOOST1-SW1, BOOST2-SW2 ..11V to –0.3V BFBO 8 29 IAVGSNSP NC 9 28 NC TG1-SW1, TG2-SW2, BG1, BG2 .. (Note 8) BGND 10 27 RUN V5, BOV, BFBO, BV BISET 11 26 NC FB, BISET Voltage .. 6V to –0.3V BVFB 12 25 BOOST2 MODE, PLLIN, SS, PGOOD .. V5 to –0.3V ITH, FREQ, DRVSET ... V5 to –0.3V SENSEP, SENSEN, VINOV .. V5 to –0.3V 13 14 15 16 17 18 19 20 21 22 23 24 ITH V BG2 NC SW2 TG2 FB Voltage ... 2.7V to –0.3V SGND MODE PLLIN FREQ SENSEP SENSEN PGOOD Operating Junction Temperature LXE PACKAGE Range (Notes 2, 3) ... –40°C to 150°C 48-LEAD (7mm × 7mm) PLASTIC e-LQFP Storage Temperature Range .. –65°C to 150°C TJMAX = 150°C, θJA = 36°C/W EXPOSED PAD (PIN 49) IS PGND, MUST BE SOLDERED TO PCB EXTV FOR RATED ELECTRICAL AND THERMAL CHARACTERISTICS CC/DRVCC Peak Current ..100mA ORDER INFORMATION LEAD FREE FINISHPART MARKING*PACKAGE DESCRIPTIONTEMPERATURE RANGE LTC3777ELXE#PBF LTC3777 LXE 48-Lead (7mm × 7mm) Plastic e-LQFP –40°C to 125°C LTC3777ILXE#PBF LTC3777 LXE 48-Lead (7mm × 7mm) Plastic e-LQFP –40°C to 125°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. Rev A 2 For more information www.analog.com Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS – SWITCHING BIAS SUPPLY PIN FUNCTIONS BLOCK DIAGRAM OPERATION APPLICATIONS INFORMATION PACKAGE DESCRIPTION REVISION HISTORY TYPICAL APPLICATION RELATED PARTS