LT3954IUHE データシートの表示（PDF） - Linear Technology
部品番号
コンポーネント説明
メーカー
LT3954IUHE Datasheet PDF : 26 Pages
| |||
LT3954
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.
DIM/SS Voltage vs Current,
Temperature
1.30
1.25
T = –45°C, 25°C
1.20
T = 130°C
1.15
ISP/ISN Input Bias Current
vs CTRL Voltage, ISP = 24V
120
ISP
100
80
60
40
ISN
20
ISP/ISN Input Bias Current
vs CTRL Voltage, ISN = 0V
0
–30
–60
ISN
–90
–120
ISP
–150
1.10
–10
0 10 20 30 40 50
DIM/SS CURRENT (µA)
3954 G19
0
–180
0
0.5
1
1.5
2
0
0.5
1
1.5
2
CTRL VOLTAGE (V)
3954 G20
CTRL VOLTAGE (V)
3954 G21
PWMOUT Duty Ratio
vs Temperature, IDIM/SS = 0µA
9.5 CPWM = 47nF
9.0
8.5
8.0
7.5
7.0
PWMOUT Duty Ratio
vs Temperature, IDIM/SS = 21.5µA
55 CPWM = 47nF
53
51
49
47
6.5
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3954 G22
45
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3954 G23
VISP-ISN Overcurrent Threshold
vs Temperature
800
700
600
ISP = 24V
500
ISN = 0V
400
300
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3954 G24
EN/UVLO Hysteresis Current vs
Temperature
2.8
2.6
2.4
2.2
2.0
1.8
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3954 G25
For more information www.linear.com/3954
3954fa
7
Share Link: 