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LT3754 Datasheet(PDF) 6 Page - Linear Technology

Part # LT3754
Description  60V Triple Step-Down LED Driver Programmable Temperature Protection
PDF  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3754 Datasheet(HTML) 6 Page - Linear Technology

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LT3597
6
3597f
TYPICAL PERFORMANCE CHARACTERISTICS
Loop Regulation Voltage
LED Current
LED Current Matching
LED Current vs PWM Duty Cycle
LED Current vs CTRL
Adaptive Loop Operation
Boost Diode VF
Soft-Start
60V Switching Waveforms
TA = 25°C, unless otherwise noted.
0
400
500
600
700
300
200
100
10
3597 G10
0
800
8
6
4
2
DIODE CURRENT (mA)
–40°C
25°C
125°C
VOUT
20V/DIV
IL
100mA/DIV
VSW
20V/DIV
VEN/UVLO
5V/DIV
3597 G11
400µs/DIV
VOUT
20V/DIV
IL
100mA/DIV
VSW
20V/DIV
3597 G12
400ns/DIV
–50
1.1
1.2
1.0
75
125
3597 G13
0.9
1.4
1.3
50
25
0
–25
100
VFB
TEMPERATURE (°C)
VLED
(ADAPTIVE LOOP)
–50
99
100
98
75
125
3597 G14
97
103
101
102
50
25
0
–25
100
CH2
CH3
TEMPERATURE (°C)
CH1
–50
0
0.25
–0.25
75
125
3597 G15
–0.50
0.50
50
25
0
–25
100
CH2
CH3
TEMPERATURE (°C)
CH1
0.001
0.1
1
0.01
0.001
100
3597 G16
0.0001
100
10
10
1
0.1
0.01
DUTY CYCLE (%)
0
60
80
40
20
1.5
3597 G17
0
120
100
1.25
1
0.75
0.5
0.25
CTRL VOLTAGE (V)
VOUT
10V/DIV
VLED
10V/DIV
ILED
100mA/DIV
VSW
20V/DIV
3597 G18
400µs/DIV



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