LT3518EFE#PBF Linear Technology, LT3518EFE#PBF Datasheet - Page 5

• Manufacturer Part Number: LT3518EFE#PBF
• Description: IC LED DRIVR AUTOMOTIVE 16-TSSOP
• Manufacturer: Linear Technology
• Type: Automotiver

Specifications of LT3518EFE#PBF

• Constant Current: Yes
• Constant Voltage: Yes
• Topology: PWM, Step-Down (Buck), Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: No
• Type - Primary: Automotive, Backlight
• Type - Secondary: White LED
• Frequency: 250kHz ~ 2.5MHz
• Voltage - Supply: 3 V ~ 30 V
• Voltage - Output: 7V
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP Exposed Pad, 16-eTSSOP, 16-HTSSOP
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 2.8A
• Internal Switch(s): Yes
• Efficiency: 88%
• Led Driver Application: Display Backlighting, Automotive And Avionic Lighting
• No. Of Outputs: 1
• Output Current: 2.3A
• Output Voltage: 45V
• Input Voltage: 3V To 30V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TYPICAL PERFORMANCE CHARACTERISTICS
120
100
104
103
102
101
100
105
104
103
102
101
100
80
60
20
40
99
98
97
96
99
98
97
96
95
0
–40
0
0
V
V
vs Temperature
V
V
V
V
T
V
V
V
V
V
V
T
V
ISP
ISP
ISP
IN
ISP
C
A
IN
ISP
C
CTRL
A
–20 0
CTRL
IN
C
= 1V
= 25°C
= 1V
0.2
= 25°C
= 1V
= 5V
= 5V
= 5V
= 24V
– V
= 24V
– V
– V
= 2V
= 2V
10
0.4
ISN
ISN
ISN
20
TEMPERATURE (°C)
Threshold vs V
Threshold
Threshold vs V
0.6
40
20
V
CTRL
V
ISP
0.8
60 80 100 120 140 160
(V)
(V)
30
1.0
1.2
CTRL
ISP
40
1.4
3518 G01
3518 G04
3518 G07
1.6
50
2.02
2.01
2.00
1.99
1.98
2.6
3.0
2.5
2.0
1.5
1.0
0.5
3.0
2.8
2.4
2.2
2.0
0
–40
–40 –15
0
Switch Current Limit
vs Temperature
Switch Current Limit
vs Duty Cycle
Reference Voltage
vs Temperature
T
V
V
A
IN
IN
–20 0
= 25°C
= 5V
= 5V
20
–10
20 40
TEMPERATURE (°C)
TEMPERATURE (°C)
DUTY CYCLE (%)
35
40
60 80 100 120 140 160
60
60
85
110 135 160
80
3518 G02
3518 G05
3518 G08
100
10000
1000
100
2.1
2.5
2.3
1.9
1.7
1.5
8
7
6
5
4
3
2
1
0
–40 –20
0
Quiescent Current vs V
1
Oscillator Frequency vs R
Oscillator Frequency
vs Temperature
T
V
T
V
R
A
C
A
IN
T
= 25°C
= 0V
= 25°C
= 6.04k
= 5V
0
10
20
TEMPERATURE (°C)
40 60
R
V
T
IN
20
10
(kΩ)
(V)
80
LT3518
IN
100 120 140
30
T
3518 G03
3518 G06
3518 G09
3518fd
5
160
100
40