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LT3519/LT3519-1/LT3519-2
ABSOLUTE MAXIMUM RATINGS
(Note 1)
PIN CONFIGURATION
V IN , OPENLED (Note 3) .............................................40V
SHDN /UVLO (Note 4) ...............................................40V
SW, ISP , ISN, ANODE, CATHODE ..............................45V
PWM, CTRL ..............................................................10V
FB, V REF ......................................................................3V
Operating Junction Temperature Range
(Note 2).................................................. –40°C to 125°C
Maximum Junction Temperature........................... 125°C
GND
OPENLED
PWM
SHDN /UVLO
V IN
SW
ANODE
GND
TOP VIEW
1 16
2 15
3 14
4 13
5 12
6 11
7 10
8 9
MS PACKAGE
16-LEAD PLASTIC MSOP
T JMAX = 125°C, θ JA = 130°C/W
GND
V REF
CTRL
FB
ISN
ISP
CATHODE
GND
Storage Temperature Range................... –65°C to 125°C
ORDER INFORMATION
LEAD FREE FINISH
LT3519EMS#PBF
LT3519EMS-1#PBF
LT3519EMS-2#PBF
LT3519IMS#PBF
LT3519IMS-1#PBF
LT3519IMS-2#PBF
TAPE AND REEL
LT3519EMS#TRPBF
LT3519EMS-1#TRPBF
LT3519EMS-2#TRPBF
LT3519IMS#TRPBF
LT3519IMS-1#TRPBF
LT3519IMS-2#TRPBF
PART MARKING*
3519
35191
35192
3519
35191
35192
PACKAGE DESCRIPTION
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges. *The temperature grade is identi?ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based ?nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel speci?cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full
operating temperature range, otherwise speci?cations are at T A = 25°C. V IN = 12V, SHDN /UVLO = 12V, CTRL = 2V, PWM = 5V,
unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V IN Operating Voltage Range
V IN Supply Current
Continuous Operation (Note 3)
SHDN /UVLO = 0V (Shutdown)
PWM = 0V (Idle)
PWM > 1.5V, FB = 1.5V (Active, Not Switching)
3
0.1
2.0
2.5
30
1
3.0
3.5
V
μA
mA
mA
Current Sense Voltage (V ISP -V ISN )
ISP = 24V
l
240
250
260
mV
ISP = 0V
250
mV
Zero Current Sense Voltage (V ISP -V ISN )
ISP = 24V, CTRL = 100mV
l
–15
–6
3
mV
Current Sense Voltage Line Regulation
2.5V < ISP < 45V
0.02
%/V
3519fa
2
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