LT3492
TYPICAL PERFORMANCE CHARACTERISTICS
(T A = 25°C unless otherwise noted)
Switch Frequency vs Temperature
V ISP -V ISN Threshold vs CTRL
V ISP- V ISN Threshold vs V ISP
1.4
FADJ = 0.5V
120
V ISP = 24V
103
CTRL = 1.2V
1.3
100
80
102
101
1.2
1.1
60
40
20
100
99
98
1.0
–50 –25
0
25
50
75
100
125
0
0
0.2
0.4
0.6 0.8
1
1.2
97
0
10
20
30
40
50
60
103
TEMPERATURE (°C)
V ISP- V ISN Threshold vs
Temperature
CTRL = 1.2V
3492 G07
CTRL (V)
PMOS Turn On Waveforms
3492 G08
V ISP (V)
PMOS Turn Off Waveforms
3492 G09
102
101
V ISP = 24V
5V
PWM
0V
5V
PWM
0V
100
60V
60V
99
98
TG
50V
TG
50V
97
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3492 G10
V ISP = 60V
Q G FET = 6nC
200ns/DIV
3492 G11
V ISP = 60V
Q G FET = 6nC
200ns/DIV
3492 G12
3492fa
6
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