Datasheet

LT3598
6
3598fb
TYPICAL PERFORMANCE CHARACTERISTICS
LED Current vs PWM Duty Cycle LED Current vs Temperature LED Current vs CTRL Voltage
LED Current Matching
vs Temperature
OPENLED Sink Current
LED Current Waveforms
(0.1% PWM)
LED Current Waveforms
(90% PWM)
LED Current Waveforms
(0.1% PWM)
LED Current Waveforms
(90% PWM)
PWM DUTY CYCLE (%)
0.01
0.001
LED CURRENT (mA)
1
100
1100.1 100
3598 G10
0.1
0.01
10
TEMPERATURE (°C)
–50
LED CURRENT (mA)
20.1
20.2
20.0
19.9
050
–25
25 75 100 125
19.8
19.7
20.3
3598 G11
CTRL VOLTAGE (V)
0
LED CURRENT (mA)
15
20
25
1.0
10
5
0
0.2 0.4
0.6
0.8
1.2
3598 G12
TEMPERATURE (°C)
–50
MATCHING (%)
0.5
1.0
0.0
–0.5
050
–25
25 75 100 125
–1.0
–1.5
1.5
3598 G13
TEMPERATURE (°C)
–50
OPENLED CURRENT (mA)
2.0
2.5
1.5
1.0
050
–25
25 75 100 125
0.5
0
3.0
3598 G14
20μs/DIV
PWM
5V/DIV
SW
20V/DIV
I
LED1
50mA/DIV
I
L
1A/DIV
3598 G15
2μs/DIV
PWM
5V/DIV
SW
20V/DIV
I
LED1
50mA/DIV
I
L
1A/DIV
3598 G16
100μs/DIV
PWM
5V/DIV
SW
20V/DIV
I
LED1
50mA/DIV
I
L
1A/DIV
3598 G17
5μs/DIV
PWM
5V/DIV
SW
20V/DIV
I
LED1
50mA/DIV
I
L
1A/DIV
3598 G18