LT3595A データシートの表示（PDF） - Linear Technology
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LT3595A Datasheet PDF : 16 Pages
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LT3595A
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.
Current Limit vs Temperature
150
140
130
120
110
100
90
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3595A G09
Switching Frequency
vs Temperature
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3595A G10
Schottky Leakage Current
vs Temperature
1.4
1.2
1.0
VIN = 45V
0.8
0.6
VIN = 24V
0.4
VIN = 4.5V
0.2
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3595A G11
Switch Saturation Voltage
(VCESAT)
700
600
500
T = –40°C
400
300
T = 25°C
200
T = 125°C
100
0
0
20
40
60
80 100
SWITCH CURRENT (mA)
3595A G12
Schottky Forward Voltage Drop
100
80
60
T = 125°C
40
T = 25°C
20
T = –40°C
0
0
0.2 0.4 0.6 0.8
1
SCHOTTKY FORWARD DROP (V)
3595A G13
Transient Response
VSHDN
5V/DIV
VSW
50V/DIV
ISW
50mA/DIV
ILED
20mA/DIV
100μs/DIV
VIN = 45V
10 LEDS AT 20mA
3595A G14
OPENLED Waveforms
ILED
CH 1
20mA/DIV
OPENLED
5V/DIV
VSW
CH 1
50V/DIV
ILED
CH 2
20mA/DIV
20μs/DIV
VIN = 45V
10 LEDS AT 20mA
3595A G15
3595af
5
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