Datasheet LT3724 (Analog Devices) - 2

LT3724
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
Input Supply Voltage (V TOP VIEW IN) ... 65V to –0.3V Boosted Supply Voltage (BOOST) .. 80V to –0.3V VIN 1 16 BOOST Switch Voltage (SW)(Note 8) .. 65V to –1V NC 2 15 TG Differential Boost Voltage SHDN 3 14 SW (BOOST to SW) .. 24V to –0.3V CSS 4 13 NC 17 Bias Supply Voltage (V BURST_EN 5 12 VCC CC) .. 24V to –0.3V VFB 6 11 PGND SENSE+ and SENSE– Voltages ... 40V to –0.3V VC 7 10 SENSE+ SGND 8 9 SENSE– (SENSE+ to SENSE–) ... 1V to –1V BURST_EN Voltage .. 24V to –0.3V FE PACKAGE 16-LEAD PLASTIC TSSOP VC, VFB, CSS, and SHDN Voltages... 5V to –0.3V TJMAX = 125°C, θJA = 40°C/W, θJC = 10°C/W EXPOSED PAD IS SGND (PIN 17), MUST BE SOLDERED TO PCB CSS and SHDN Pin Currents ...1mA Operating Junction Temperature Range (Notes 2, 3) LT3724E ... –40°C to 125°C LT3724I .. –40°C to 125°C LT3724MP.. –55°C to 125°C Storage Temperature .. –65°C to 150°C Lead Temperature (Soldering, 10 sec) .. 300°C
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3724EFE#PBF LT3724EFE#TRPBF 3724EFE 16-Lead Plastic TSSOP –40°C to 125°C LT3724IFE#PBF LT3724IFE#TRPBF 3724IFE 16-Lead Plastic TSSOP –40°C to 125°C
LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3724MPFE LT3724MPFE#TR 3724MPFE 16-Lead Plastic TSSOP –55°C to 125°C Consult LTC Marketing for parts specified with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 20V, VCC = BOOST = BURST_EN = 10V, SHDN = 2V, SENSE– = SENSE+ = 10V, SGND = PGND = SW = 0V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Operating Voltage Range (Note 4) l 4 60 V Minimum Start Voltage l 7.5 V UVLO Threshold (Falling) l 3.65 3.8 3.95 V UVLO Threshold Hysteresis 670 mV IVIN VIN Supply Current VCC > 9V 20 µA VIN Burst Mode Current VBURST_EN = 0V, VFB = 1.35V 20 µA VIN Shutdown Current VSHDN = 0V 10 15 µA 3724fd 2