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LT3590 Datasheet(PDF) 5 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) 5 Page - Linear Technology

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LT3590
5
3590f
TYPICAL PERFORMANCE CHARACTERISTICS
Sense Voltage (VIN – VLED)
vs VCTRL
Switching Current Limit
vs Duty Cycle
Switching Current Limit
vs Temperature
Sense Voltage (VIN – VLED)
vs VIN
Sense Voltage (VIN – VLED)
vs Temperature
Switching Frequency over
Temperature
Internal Regulator
Line Regulation
Internal Regulator
Load Regulation
Internal Regulator
VREG vs Temperature
VCTRL (V)
0
0.20
2
0.15
0.10
0
0.5
1
1.5
0.05
0.25
3590 G09
VIN = 48V
ILED = 50mA
TA = 25°C
DUTY CYCLE (%)
0
120
130
140
80
110
100
20
40
60
100
90
80
150
3590 G10
TA = 25°C
TEMPERATURE (°C)
–50
25
110
90
–25
0
50
80
150
140
130
120
100
75
100
125
3590 G11
VIN (V)
0
206
204
202
200
198
196
194
30
50
10
20
40
60
3590 G12
ILED = 50mA
10 WHITE LEDs
TA = 25°C
TEMPERATURE (°C)
–50
206
25
200
196
–25
0
50
194
204
202
198
75
100
125
3590 G13
TEMPERATURE (°C)
–50
25
900
800
–25
0
50
750
700
1000
950
850
75
100
125
3590 G14
VIN = 48V
VIN (V)
0
3.40
3.35
3.30
3.25
3.20
30
10
20
40
60
50
3590 G15
VCTRL = 3.3V
ILOAD = 1mA
VCTRL = 0V
ILOAD = 0V
TA = 25°C
ILOAD (mA)
0
3.40
3.35
3.30
3.25
3.20
0.6
0.2
0.4
0.8
1
3590 G16
VCTRL = 0V
ILED = 0V
VCTRL = 3.3V
ILED = 50mA
TA = 25°C
TEMPERATURE (°C)
–50
3.20
3.25
3.30
3.35
3.40
–25
0
25
50
3590 G17
75
100
125
VCTRL = 3.3V
ILOAD = 1mA



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