Datasheet LTC3731 (Analog Devices) - 2

LTC3731
ABSOLUTE MAXIMUM RATINGS (Note 1)
Topside Driver Voltages (BOOSTn) ... 38V to –0.3V ITH Voltage ... 2.4V to –0.3V Switch Voltage (SWn) ... 32V to –5V Operating Ambient Temperature Range Boosted Driver Voltage (BOOSTn – SWn) .. 7V to –0.3V LTC3731C .. 0°C to 70°C Peak Output Current < 1ms (TGn, BGn) ..5A LTC3731I ..–40°C to 85°C Supply Voltages (VCC, VDR), PGOOD Junction Temperature (Note 2) ... 125°C Pin Voltage ... 7V to –0.3V Storage Temperature Range .. –65°C to 125°C RUN/SS, PLLFLTR, PLLIN, UVADJ, Lead Temperature G Package (Soldering, 10 sec)..300°C FCB Voltages ..VCC to –0.3V Peak Body Temperature UH Package ... 240°C SENSE+, SENSE– Voltages ... 5.5V to –0.3V
PIN CONFIGURATION
TOP VIEW V 1 36 CC CLKOUT TOP VIEW PLLIN 2 35 PGOOD PLLFLTR 3 34 BOOST1 + IN FCB PLLFLTR PLLIN CLKOUT BOOST1 TG1 SW1 FCB 4 33 TG1 32 31 30 29 28 27 26 25 IN+ 5 32 SW1 IN– 1 24 BOOST2 IN– 6 31 BOOST2 DIFFOUT 2 23 TG2 DIFFOUT 7 30 TG2 EAIN 3 22 SW2 EAIN 8 29 SW2 SENSE1+ 4 21 33 VCC SGND 9 28 VDR SENSE1– 5 SGND 20 BG1 SENSE1+ 10 27 BG1 SENSE2+ 6 19 PGND SENSE1– 11 26 PGND SENSE2– 7 18 BG2 SENSE2+ 12 25 BG2 SENSE3– 8 17 BG3 SENSE2– 13 24 BG3 9 10 11 12 13 14 15 16 + SENSE3– 14 23 SW3 I TH TG3 SW3 SENSE3+ 15 22 TG3 UVADJ SENSE3 RUN/SS BOOST3 RUN/SS 16 21 BOOST3 PHASMD/PG I 17 20 TH PHASMD UH PACKAGE 32-LEAD (5mm × 5mm) PLASTIC QFN UVADJ 18 19 SGND2 TJMAX = 125°C, θJA = 34°C/W G PACKAGE EXPOSED PAD (PIN 33) IS SGND, MUST BE SOLDERED TO PCB 36-LEAD PLASTIC SSOP TJMAX = 125°C, θJA = 95°C/W, θJC = 32°C/W 3731fc 2 Document Outline Features Applications Features Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts