Datasheet LTC3897 (Analog Devices) - 2

LTC3897
ABSOLUTE MAXIMUM RATINGS (Note 1)
VIN, SGEN .. –40V to 76 V INTVCC ... –0.3V to 6V VBIAS, IS+, IS–, ...76V EXTVCC .. –0.3V to 14V SENSE1+, SENSE2+, SENSE1–, SENSE2– ..65V DRVCC, (BOOST1-SW1), (BOOST2-SW2) ..–0.3V to 11V CS ... –40V to 76V (SENSE1+-SENSE1–), SG, DG (Note 8) ...CS – 0.3V to CS + 10V (SENSE2+-SENSE2–) ... –0.3V to 0.3V BOOST1 and BOOST2 ...–0.3V to 71V ILIM, SS, ITH, FREQ, SW1 and SW2 ... –5V to 65V PHASMD, DTC ...–0.3V to INTVCC + 0.3V BG1, BG2, TG1, TG2 ... (Note 9) DRVUV, DRVSET ..–0.3V to INTVCC + 0.3V RUN, DGEN .. –0.3V to 76V Operating Junction Temperature Range PLLIN/MODE, TMR, VFB, SPFB .. –0.3V to 6V (Notes 2, 3) .. –40°C to 150°C Storage Temperature Range .. –65°C to 150°C
PIN CONFIGURATION
TOP VIEW SGEN 1 38 TMR TOP VIEW DGEN 2 37 SPFB – + PLLIN/MODE 3 36 IS– PLLIN/MODE DGEN SGEN TMR SPFB IS IS FREQ 4 35 IS+ 38 37 36 35 34 33 32 PHASMD 5 34 DG FREQ 1 31 DG I 6 33 PHASMD 2 30 CS LIM CS SENSE1+ 7 32 SG ILIM 3 29 SG SENSE1+ 4 28 V SENSE1– 8 31 V IN IN SENSE1– 5 27 TG1 DTC 9 30 TG1 39 DTC 6 39 26 SW1 DRVUV 10 29 SW1 GND GND DRVUV 7 25 BOOST1 DRVSET 11 28 BOOST1 DRVSET 8 24 BG1 INTV 12 27 CC BG1 INTVCC 9 23 VBIAS RUN 13 26 VBIAS RUN 10 22 EXTVCC I 14 25 TH EXTVCC ITH 11 21 DRVCC SENSE2– 15 24 DRVCC SENSE2– 12 20 BG2 SENSE2+ 16 23 BG2 13 14 15 16 17 18 19 V 17 22 + FB BOOST2 V FB SS TG2 SW2 SS 18 21 SW2 SENSE2 CLKOUT BOOST2 CLKOUT 19 20 TG2 UHF PACKAGE FE PACKAGE 38-LEAD (5mm × 7mm) PLASTIC QFN 38-LEAD PLASTIC TSSOP θJA = 34°C/W θJA = 28°C/W EXPOSED PAD (PIN 39) IS GND, MUST BE SOLDERED TO PCB EXPOSED PAD (PIN 39) IS GND, MUST BE SOLDERED TO PCB Rev. A 2 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts