LTC3827 ABSOLUTE MAXIMUM RATINGSPIN CONFIGURATION(Note 1) Input Supply Voltage (VIN) ...36V to – 0.3V TOP VIEW Topside Driver Voltages + BOOST1, BOOST2 .. 42V to –0.3V FB1 SENSE1 V I TH1 TRACK/SS1 PGOOD2 PGOOD1 TG1 SW1 Switch Voltage (SW1, SW2) ... 36V to –5V 32 31 30 29 28 27 26 25 SENSE1– 1 24 BOOST1 BOOST1-SW1, BOOST2-SW2 .. 8.5V to –0.3V PLLLPF 2 23 BG1 RUN1, RUN2 ... 7V to –0.3V PHASMD 3 22 VIN SENSE1+, SENSE2+, SENSE1–, CLKOUT 4 21 PGND 33 SENSE2– Voltages .. 11V to –0.3V PLLIN/MODE 5 20 EXTVCC SGND 6 19 INTVCC PLLIN/MODE, PLLLPF, Voltages ... INTVCC to –0.3V RUN1 7 18 BG2 PHASMD, FOLDDIS, TRACK/SS1, TRACK/SS2 RUN2 8 17 BOOST2 Voltages ... INTVCC to –0.3V 9 10 11 12 13 14 15 16 – + EXTV FB2 CC .. 10V to –0.3V V I TH2 TG2 SW2 I SENSE2 SENSE2 FOLDDIS TH1, ITH2, VFB1, VFB2 Voltages .. 2.7V to –0.3V TRACK/SS2 PGOOD1, PGOOD2 Voltages ... 8.5V to –0.3V UH PACKAGE 32-LEAD (5mm × 5mm) PLASTIC QFN Peak Output Current <10μs (TG1, TG2, BG1, BG2) ...3A TJMAX = 125°C, θJA = 34°C/W INTV EXPOSED PAD (PIN 33) IS SGND CC Peak Output Current ... 50mA MUST BE SOLDERED TO PCB Operating Temperature Range (Note 2).. –40°C to 85°C Junction Temperature (Note 3) ... 125°C Storage Temperature Range .. –65°C to 125°C ORDER INFORMATIONLEAD FREE FINISHTAPE AND REELPART MARKING*PACKAGE DESCRIPTIONTEMPERATURE RANGE LTC3827EUH#PBF LTC3827EUH#TRPBF 3827 32-Lead (5mm × 5mm) Plastic QFN –40°C to 85°C LTC3827IUH#PBF LTC3827IUH#TRPBF 3827 32-Lead (5mm × 5mm) Plastic QFN –40°C to 85°C LEAD BASED FINISHTAPE AND REELPART MARKING*PACKAGE DESCRIPTIONTEMPERATURE RANGE LTC3827EUH LTC3827EUH#TR 3827 32-Lead (5mm × 5mm) Plastic QFN –40°C to 85°C LTC3827IUH LTC3827IUH#TR 3827 32-Lead (5mm × 5mm) Plastic QFN –40°C to 85°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed 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 specifi cations, go to: http://www.linear.com/tapeandreel/ 3827ff 2
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