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