Datasheet LT3797 (Analog Devices) - 2

LT3797
ABSOLUTE MAXIMUM RATINGS (Note 1)
VIN, EN/UVLO ..60V RT ..1.5V INTVCC, SYNC, OVLO, PWM1, PWM2, PWM3 ..8V SENSEP1, SENSEP2, SENSEP3, SENSEN1, ISN1 ...ISP1-1.5V, 100V SENSEN2, SENSEN3, ...±0.3V ISN2 ...ISP2-1.5V, 100V SW1, SW2, BOOST, TG1, TG2, TG3, GATE1, ISN3 ...ISP3-1.5V, 100V GATE2, GATE3 .. (Note 2) FBH1 .. ISP1 ±6V, 100V Operating Ambient Temperature Range FBH2 .. ISP2 ±6V, 100V (Note 3) .. –40 to 125°C FBH3 .. ISP3 ±6V, 100V Maximum Junction Temperature .. 125°C VC1, VC2, VC3, VREF, SS1, SS2, SS3 ..3V Storage Temperature Range .. –65°C to 150°C CTRL1, CTRL2, CTRL3, FLT1, FLT2, FLT3...12V
PIN CONFIGURATION
TOP VIEW CC CC TOP VIEW OVLO EN/UVLO V IN SW1 BOOST SW2 INTV INTV GATE3 SENSEP3 SENSEN3 SS3 52 51 50 49 48 47 46 45 44 43 42 41 V CC V CC TE3 FLT1 1 40 VC3 OVLO ENUVLO V IN SW1 BOOST SW2 INT INT GA SENSEP3 SENSEN3 SS3 48 47 46 45 44 43 42 41 40 39 38 37 FLT2 2 FLT3 3 38 FBH3 PWM1 4 37 ISP3 FLT1 1 36 VC3 PWM2 5 36 ISN3 FLT2 2 35 FBH3 FLT3 3 34 ISP3 PWM3 6 35 TG3 PWM1 4 33 ISN3 VREF 7 53 PWM2 5 32 TG3 GND PWM3 6 49 31 NC CTRL1 8 33 TG2 VREF 7 GND 30 TG2 CTRL2 9 32 ISN2 CTRL1 8 29 ISN2 CTRL2 9 28 ISP2 CTRL3 10 31 ISP2 CTRL3 10 27 FBH2 RT 11 30 FBH2 RT 11 26 VC2 SYNC 12 25 SS2 SYNC 12 28 VC2 TG1 14 27 SS2 13 14 15 16 17 18 19 20 21 22 23 24 15 16 17 19 20 21 22 23 24 25 26 TG1 ISN1 ISP1 FBH1 VC1 SS1 TE1 TE2 GA GA ISN1 ISP1 FBH1 VC1 SS1 SENSEN1 SENSEP1 SENSEP2 SENSEN2 GATE1 GATE2 LXE PACKAGE SENSEN1 SENSEP1 SENSEP2 SENSEN2 48-LEAD (7mm × 7mm) PLASTIC LQFP UKG PACKAGE VARIATION: UKG52(47) θJA = 19°C/W 52-LEAD (7mm × 8mm) PLASTIC QFN EXPOSED PAD (PIN 49) IS GND, MUST BE SOLDERED TO PCB θJA = 28°C/W EXPOSED PAD (PIN 53) IS GND, MUST BE SOLDERED TO PCB Rev C 2 For more information www.analog.com Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Revision History Typical Application Related Parts 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 Revision History Typical Application Related Parts