LT3519 查看數據表（PDF） - Linear Technology
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LT3519 Datasheet PDF : 20 Pages
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LT3519/LT3519-1/LT3519-2
ABSOLUTE MAXIMUM RATINGS
(Note 1)
VIN, OPENLED (Note 3).............................................40V
SHDN/UVLO (Note 4) ...............................................40V
SW, ISP, ISN, ANODE, CATHODE ..............................45V
PWM, CTRL ..............................................................10V
FB, VREF ......................................................................3V
Operating Junction Temperature Range
(Note 2).................................................. –40°C to 125°C
Maximum Junction Temperature........................... 125°C
Storage Temperature Range................... –65°C to 125°C
PIN CONFIGURATION
GND 1
OPENLED 2
PWM 3
SHDN/UVLO 4
VIN 5
SW 6
ANODE 7
GND 8
TOP VIEW
16 GND
15 VREF
14 CTRL
13 FB
12 ISN
11 ISP
10 CATHODE
9 GND
MS PACKAGE
16-LEAD PLASTIC MSOP
TJMAX = 125°C, θJA = 130°C/W
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT3519EMS#PBF
LT3519EMS#TRPBF
3519
16-Lead Plastic MSOP
–40°C to 125°C
LT3519EMS-1#PBF
LT3519EMS-1#TRPBF 35191
16-Lead Plastic MSOP
–40°C to 125°C
LT3519EMS-2#PBF
LT3519EMS-2#TRPBF 35192
16-Lead Plastic MSOP
–40°C to 125°C
LT3519IMS#PBF
LT3519IMS#TRPBF
3519
16-Lead Plastic MSOP
–40°C to 125°C
LT3519IMS-1#PBF
LT3519IMS-1#TRPBF 35191
16-Lead Plastic MSOP
–40°C to 125°C
LT3519IMS-2#PBF
LT3519IMS-2#TRPBF 35192
16-Lead Plastic MSOP
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
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 = 12V, SHDN/UVLO = 12V, CTRL = 2V, PWM = 5V,
unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
VIN Operating Voltage Range
VIN Supply Current
Continuous Operation (Note 3)
SHDN/UVLO = 0V
(Shutdown)
PWM = 0V
(Idle)
PWM > 1.5V, FB = 1.5V (Active, Not Switching)
3
30
0.1
1
2.0
3.0
2.5
3.5
Current Sense Voltage (VISP-VISN)
ISP = 24V
ISP = 0V
l
240
250
260
250
Zero Current Sense Voltage (VISP-VISN)
Current Sense Voltage Line Regulation
ISP = 24V, CTRL = 100mV
2.5V < ISP < 45V
l
–15
–6
3
0.02
UNITS
V
μA
mA
mA
mV
mV
mV
%/V
3519fa
2
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