LT1161 Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
LT1161 Datasheet PDF : 12 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current
20
18
16
14
12
10
ALL CHANNELS ON
8
6
ALL CHANNELS OFF
4
2
0
0
10
20
30
40
50
INPUT VOLTAGE (V)
1161 G01
Supply Current
20
V+ = 24V
18
16
14
12
10
ALL CHANNELS ON
8
6
ALL CHANNELS OFF
4
2
0
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
1161 G04
Turn-ON Time Driving MOSFET
500
450
IRFZ34
400
350
300
250
200
150
100
50
0
0
10
20
30
40
50
INPUT VOLTAGE (V)
1161 G07
MOSFET Gate Voltage Above V +
16
14
TJ = 85°C
12
TJ = –40°C
10
TJ = 25°C
8
6
4
2
0
0
10
20
30
40
50
INPUT VOLTAGE (V)
1161 G02
Input Threshold Voltage
2.4
V+ = 24V
2.2
2.0
1.8
TURN-ON
1.6
1.4
1.2
TURN-OFF
1.0
0.8
0.6
0.4
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
1161 G05
Turn-OFF Time Driving MOSFET
100
90 IRFZ34
80
70
60
NORMAL
50
40
30
20
CURRENT LIMIT
10
0
0
10
20
30
40
50
INPUT VOLTAGE (V)
1161 G08
LT1161
MOSFET Gate Drive Current
100
V+ ≥ 24V
10
V+ = 12V
V+ = 8V
1
0.1
0
2 4 6 8 10 12 14 16
GATE VOLTAGE ABOVE V+ (V)
1161 G03
Drain Sense Threshold Voltage
110
V+ = 24V
100
90
80
70
60
50
40
30
20
10
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
1161 G06
Automatic Restart Period
1000
V+ = 24V
CT = 3.3µF
CT = 1µF
100
CT = 0.33µF
CT = 0.1µF
10
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
1161 G09
1161fa
3
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