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LT3590 Datasheet(PDF) 4 Page - Linear Technology

Part # LT3590
Description  48V Buck Mode LED Driver in SC70
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3590 Datasheet(HTML) 4 Page - Linear Technology

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LT3590
4
3590f
SWITCH CURRENT (mA)
20
0.6
0.7
100
0.5
0.4
0.2
40
60
80
0.3
0.8
3590 G01
–40°C
25°C
125°C
SCHOTTKY FORWARD CURRENT (mA)
0
0.8
0.9
1.0
200
0.7
0.6
0.4
50
100
150
0.5
1.2
1.1
3590 G02
–40°C
25°C
125°C
VIN (V)
0
10
12
14
16
18
20
10
20
30
40
3590 G03
50
60
VCTRL = 0V
TA = 25°C
TEMPERATURE (°C)
–50
25
18
14
–25
0
50
12
10
20
16
75
100
125
3590 G04
VCTRL = 0V
VIN = 48V
0
400
450
500
550
600
10
20
30
40
3590 G05
50
60
VIN (V)
VCTRL = 3.3V
TA = 25°C
TEMPERATURE (°C)
–50
25
1.0
–25
0
50
0.5
0
2.0
1.5
75
100
125
3590 G06
VIN = 48V
VIN = 24V
VIN = 4.5V
1μs/DIV
VSW
20V/DIV
IL
20mA/DIV
3590 G07
VIN = 48V
ILED = 50mA
10 WHITE LEDs
L = 470μH (COILCRAFT)
40μs/DIV
CTRL
5V/DIV
ILED
50mA/DIV
VSW
50V/DIV
IL
50mA/DIV
3590 G08
VIN = 48V
ILED = 50mA
10 BLUE LEDs
TYPICAL PERFORMANCE CHARACTERISTICS
Switch Saturation Voltage
(VCESAT)
Schottky Forward Voltage Drop
Shutdown Quiescent
Current vs VIN
Shutdown Quiescent Current
vs Temperature
Quiescent Current
Schottky Leakage Current
Switching Waveform
Transient Response



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