LT1942 Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
LT1942 Datasheet PDF : 16 Pages
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TYPICAL PERFOR A CE CHARACTERISTICS
LT1942
FB4 Voltage
210
208
206
204
202
200
198
196
194
192
190
–40 –20
0 20 40 60
TEMPERATURE (°C)
80 100
1942 G04
Quiescent Current
10.0
9.5
9.0
8.5
8.0
7.5
7.0
6.5
6.0
5.5
5.0
–40 –20
0 20 40 60
TEMPERATURE (°C)
80 100
1942 G07
SW2 Saturation Voltage
400 TA = 25°C
350
300
250
200
150
100
50
0
0 10 20 30 40 50 60
SW2 CURRENT (mA)
1942 G10
VFB4 vs CTRL4
300
250
200
TA = –40°C
TA = 25°C
150
TA = 85°C
100
50
0
0 0.5 1 1.5 2
CTRL4 (V)
2.5 3
1942 G05
CT Timer Delay Time
10
9 CT = 0.1µF
8
7
6
5
4
3
2
1
0
–40 –20
0 20 40 60
TEMPERATURE (°C)
80 100
1942 G08
SW3 Saturation Voltage
400 TA = 25°C
350
300
250
200
150
100
50
0
0 10 20 30 40 50 60
SW3 CURRENT (mA)
1942 G10
Oscillator Frequency
1200
1100
1000
900
800
700
600
–40 –20
0 20 40 60
TEMPERATURE (°C)
80 100
1942 G06
SW1 Saturation Voltage
600 TA = 25°C
500
400
300
200
100
0
0 25 50 75 100 125 150 175 200
SW1 CURRENT (mA)
1942 G09
SW4 Saturation Voltage
800 TA = 25°C
700
600
500
400
300
200
100
0
0 100 200 300 400 500 600 700 800
SW4 CURRENT (mA)
1942 G12
1942fb
5
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