LT3519IMS-1#TRPBF Linear Technology, LT3519IMS-1#TRPBF Datasheet - Page 3

• Manufacturer Part Number: LT3519IMS-1#TRPBF
• Description: LED DRIVER WITH INTEGRATED SCHOT
• Manufacturer: Linear Technology
• Type: High Power, Constant Currentr

Specifications of LT3519IMS-1#TRPBF

• Constant Current: Yes
• Constant Voltage: Yes
• Topology: PWM, SEPIC, Step-Down (Buck), Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Automotive
• Frequency: 800kHz ~ 1.10MHz
• Voltage - Supply: 3 V ~ 30 V
• Mounting Type: Surface Mount
• Package / Case: 16-MSOP
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 750mA
• Internal Switch(s): Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Efficiency: -

ELECTRICAL CHARACTERISTICS
operating temperature range, otherwise specifi cations are at T
unless otherwise noted.
PARAMETER
Switching Frequency
Maximum Duty Cycle
Switch Current Limit
Switch V
Switch Leakage Current
CTRL for Full-Scale LED Current
CTRL Pin Bias Current
PWM Input High Voltage
PWM Input Low Voltage
PWM Pin Resistance to GND
FB Regulation Voltage (V
FB Pin Threshold Voltage for OPENLED Falling
FB Pin Bias Current
ISP , ISN Idle Input Bias Current
ISP , ISN Active Input Bias Current
Schottky Forward Drop
Schottky Leakage Current
SHDN/UVLO Threshold Voltage Falling
SHDN/UVLO Input Low Voltage
SHDN/UVLO Pin Bias Current Low
SHDN/UVLO Pin Bias Current High
V
V
OPENLED Output Low (V
OPENLED Leakage Current
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2. The LT3519E/LT3519E-1/LT3519E-2 are guaranteed to meet
specifi ed performance from 0°C to 125°C junction temperature range.
Specifi cations over the –40°C to 125°C operating junction temperature
range are assured by design, characterization and correlation with
REF
REF
Output Voltage
Output Pin Regulation
CESAT
FB
OL
)
)
CONDITIONS
400kHz (LT3519)
1MHz
2.2MHz (LT3519-2)
400kHz (LT3519)
1MHz
2.2MHz (LT3519-2)
I
SW = 45V, PWM = 0V
Current Out of Pin, CTRL = 0.1V
Current Out of Pin, FB = 1V
PWM = 0V, ISP = ISN = 24V
ISP = ISN = 24V, Current per Pin
I
CATHODE = 24V, ANODE = 0V
I
SHDN/UVLO = 1.15V
SHDN/UVLO = 1.30V
–100μA ≤ I
3V < V
I
FB = 0V, OPENLED = 40V
SW
SCHOTTKY
VIN
OPENLED
= 500mA
Drops Below 1μA
IN
< 40V
= 1mA
(LT3519-1)
(LT3519-1)
= 500mA
VREF
≤ 0μA
The
A
l
= 25°C. V
denotes the specifi cations which apply over the full
statistical process controls. The LT3519I/LT3519I-1/LT3519I-2 are
guaranteed to meet performance specifi cations over the –40°C to 125°C
operating junction temperature range.
Note 3. Absolute maximum voltage at V
nonrepetitive one second transients and 30V for continuous operation.
Note 4. For V
proper operation.
IN
LT3519/LT3519-1/LT3519-2
= 12V, SHDN/UVLO = 12V, CTRL = 2V, PWM = 5V,
IN
below 6V, the SHDN/UVLO pin must not exceed V
l
l
l
l
l
l
l
l
l
l
l
l
V
FB
1.190
1.180
MIN
0.80
1.96
320
750
– 70mV V
1.9
1.2
1.5
1.8
94
86
72
FB
IN
1.220
1.220
and OPENLED is 40V for
TYP
400
980
300
– 60mV V
2.2
0.8
2.2
97
93
83
50
70
60
17
10
1
2
FB
1.250
1.270
1150
MAX
1.10
2.04
0.04
440
100
– 50mV
120
100
240
2.4
0.8
0.4
2.6
2
1
4
1
IN
for
UNITS
3519fa
3
MHz
MHz
%/V
kHz
mA
mV
mV
kΩ
μA
nA
nA
μA
μA
μA
μA
nA
μA
%
%
%
V
V
V
V
V
V
V
V
V