LT3519EMS#PBF Linear Technology, LT3519EMS#PBF Datasheet - Page 13

• Manufacturer Part Number: LT3519EMS#PBF
• Description: IC LED DRVR HP CONST CURR 16MSOP
• Manufacturer: Linear Technology
• Type: High Power, Constant Currentr

Specifications of LT3519EMS#PBF

• 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: 320kHz ~ 440kHz
• Voltage - Supply: 3 V ~ 30 V
• Mounting Type: Surface Mount
• Package / Case: 16-MSOP
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 980mA
• Internal Switch(s): Yes
• Led Driver Application: Automotive, Notebook And TV Monitor Backlighting
• No. Of Outputs: 1
• Output Current: 750mA
• Output Voltage: 45V
• Input Voltage: 3V To 30V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Efficiency: -

TYPICAL APPLICATIONS
0.1A/DIV
0.3A/DIV
5V/DIV
PWM
I
LED
I
L
V
IN
= 12V
1000:1 PWM Dimming at 120Hz
2μs/DIV
6V TO 30V
V
IN
C1
1μF
C1: TDK C3216X7R1H105K
C2: MURATA GRM32ER71H475KA88
L1: COILTRONICS DR74-680-R
M1: VISHAY SILICONIX Si2308DS
R
NOTE:
V
V
V
V
IN
IN
IN
OUT
SENSE
= 8.2V RISING TURN ON
= 6.2V FALLING UVLO
> 10V FULL LED CURRENT AND FOLDBACK BELOW
3519 TA02b
100k
42.7V OVERVOLTAGE PROTECTION
: STACKPOLE ELECTRONICS RHC 2512 2.49
4W Boost Automotive LED Driver
1M
137k
1M
243k
68μH
L1
SW
V
SHDN/UVLO
V
CTRL
OPENLED
IN
REF
GND
ANODE
LT3519
LT3519/LT3519-1/LT3519-2
CATHODE
PWM
PWM
ISN
ISP
FB
94
92
90
88
86
84
6
5V
1M
29.4k
10
V
Effi ciency vs V
R
2.49Ω
M1
3519 TA02a
OUT
SENSE
14
38V LED
100mA
C2
4.7μF
V
IN
18
(V)
22
IN
26
3519 TA02c
30
13
3519fa