LT3724EFE Datasheet, PDF (2/26 Pages) Linear Technology – High Voltage, Current Mode Switching Regulator Controller

LT3724
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Supply Voltage (V_IN).......................... 65V to –0.3V
Boosted Supply Voltage (BOOST)............... 80V to –0.3V
Switch Voltage (SW)(Note 8)......................... 65V to –1V
Differential Boost Voltage
(BOOST to SW)....................................... 24V to –0.3V
Bias Supply Voltage (V_CC)........................... 24V to –0.3V
SENSE⁺ and SENSE^– Voltages.................... 40V to –0.3V
(SENSE⁺ to SENSE^–).................................... 1V to –1V
BURST_EN Voltage..................................... 24V to –0.3V
V_C, V_FB, C_SS, and SHDN Voltages................. 5V to –0.3V
C_SS 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
PIN CONFIGURATION
V_IN 1
NC 2
SHDN 3
C_SS 4
BURST_EN 5
V_FB 6
V_C 7
SGND 8
TOP VIEW
16 BOOST
15 TG
14 SW
17
13 NC
12 V_CC
11 PGND
10 SENSE⁺
9 SENSE^–
FE PACKAGE
16-LEAD PLASTIC TSSOP
T_JMAX = 125°C, θ_JA = 40°C/W, θ_JC = 10°C/W
EXPOSED PAD IS SGND (PIN 17), MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LT3724EFE#PBF
LT3724EFE#TRPBF
3724EFE
16-Lead Plastic TSSOP
LT3724IFE#PBF
LT3724IFE#TRPBF
3724IFE
16-Lead Plastic TSSOP
LEAD BASED FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
LT3724MPFE
LT3724MPFE#TR
3724MPFE
16-Lead Plastic TSSOP
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/
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
TEMPERATURE RANGE
–55°C to 125°C
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range,
SENSE^– = SENSE⁺ =
otherwise specifications are at
10V, SGND = PGND = SW = 0V,
T_A = 25°C. V_IN = 20V, V_CC
unless otherwise noted.
=
BOOST
=
BURST_EN
=
10V,
SHDN
=
2V,
SYMBOL
V_IN
I_VIN
PARAMETER
Operating Voltage Range (Note 4)
Minimum Start Voltage
UVLO Threshold (Falling)
UVLO Threshold Hysteresis
V_IN Supply Current
V_IN Burst Mode Current
V_IN Shutdown Current
CONDITIONS
V_CC > 9V
V_{BURST_EN} = 0V, V_FB = 1.35V
V_SHDN = 0V
MIN TYP
MAX
UNITS
l
4
60
V
l 7.5
V
l 3.65
3.8
3.95
V
670
mV
20
µA
20
µA
10
15
µA
3724fd
2