LT3517(RevA) 查看數據表（PDF） - Linear Technology
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LT3517 Datasheet PDF : 20 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
LT3517
VISP – VISN Threshold vs
Temperature
104
VIN = 5V
103 VISP = 24V
VC = 1V
102 VCTRL = 2V
101
100
99
98
97
96
–40 –20 0 20 40 60 80 100 120 140 160
TEMPERATURE (°C)
3517 G04
VISP – VISN Threshold vs VISP
105
VCTRL = 2V
104 VIN = 5V
103
TA = 25°C
VC = 1V
102
101
100
99
98
97
96
95
0
10
20
30
40
50
VISP (V)
3517 G07
Switch Current Limit vs
Temperature
2.5
VIN = 5V
2.0
1.5
1.0
0.5
0
–40 –20 0 20 40 60 80 100 120 140 160
TEMPERATURE (°C)
3518 G05
Reference Voltage vs
Temperature
2.02
VIN = 5V
2.01
2.00
1.99
1.98
–40 –20 0 20 40 60 80 100 120 140 160
TEMPERATURE (°C)
3517 G08
Oscillator Frequency vs
Temperature
2.5
VIN = 5V
RT = 6.04k
2.3
2.1
1.9
1.7
1.5
–40 –20 0 20 40 60 80 100 120 140 160
TEMPERATURE (°C)
3517 G06
Quiescent Current vs VIN
8
TA = 25°C
7 VC = 0V
6
5
4
3
2
1
0
0
10
20
30
VIN (V)
40
3517 G09
FB Pin Threshold vs Temperature
1.04
VIN = 5V
1.03
1.02
1.01
1.00
0.99
PMOS Turn-On
5V
PWM
0V
40V
TG
30V
0.98
–40 –20 0 20 40 60 80 100 120 140 160
TEMPERATURE (°C)
3517 G10
VISP = 40V
200ns/DIV
PMOS Turn-Off
5V
PWM
0V
40V
TG
30V
3517 G11
VISP = 40V
200ns/DIV
3517 G11
3517fa
5
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