Datasheet

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