LTC3850-2 ABSOLUTE MAXIMUM RATINGSPIN CONFIGURATION(Note 1) Input Supply Voltage (VIN) ...30V to –0.3V TOP VIEW Input Supply Transient Voltage (VIN) < 500ms, with RUN1 1 28 FREQ/PLLFLTR INTVCC ≥ 5V ...34V to –0.3V SENSE1+ 2 27 MODE/PLLIN Top Side Driver Voltages SENSE1– 3 26 SW1 BOOST1, BOOST2 .. 34V to –0.3V V 4 25 FB1 TG1 Switch Voltage (SW1, SW2) ... 30V to –5V TK/SS1 5 24 BOOST1 INTV I 6 23 BG1 CC , RUN1, RUN2, PGOOD, EXTVCC, TH1 (BOOST1-SW1), (BOOST2-SW2) ... 6V to –0.3V SGND 7 22 VIN SENSE1+, SENSE2+, SENSE1–, I 8 21 TH2 INTVCC TK/SS2 9 SENSE2– Voltages ... 5.5V to –0.3V 20 BG2 V 10 19 PGND MODE/PLLIN, TK/SS1,TK/SS2, FREQ/PLLFLTR FB2 SENSE2– 11 18 BOOST2 Voltages .. INTVCC to –0.3V SENSE2+ 12 17 TG2 ITH1, ITH2, VFB1, VFB2 Voltages ..2.7V to –0.3V RUN2 13 16 SW2 INTVCC Peak Output Current ..100mA EXTV 14 15 CC PGOOD Operating Temperature Range (Note 2)..–40°C to 85°C GN PACKAGE Junction Temperature (Note 3) ... 125°C 28-LEAD NARROW PLASTIC SSOP Storage Temperature Range ...–65°C to 125°C T Lead Temperature (Soldering, 10 sec) JMAX = 125°C, θJA = 95°C/W (GN Package) .. 300°C ORDER INFORMATIONLEAD FREE FINISHTAPE AND REELPART MARKINGPACKAGE DESCRIPTIONTEMPERATURE RANGE LTC3850IGN-2#PBF LTC3850IGN-2#TRPBF LTC3850GN-2 28-Lead Narrow Plastic SSOP –40°C to 85°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based fi nish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/ 38502f 2
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