LNBH24 STMicroelectronics, LNBH24 Datasheet - Page 24

• Manufacturer Part Number: LNBH24
• Description: Dual LNB supply and control IC with step-up and I2C interface
• Manufacturer: STMicroelectronics

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Figure 14. Supply current vs. temperature
Figure 16. Dynamic overload protection OFF
Figure 18. Output current limiting vs.
70
70
60
60
50
50
40
40
30
30
20
20
10
10
1300
1300
1200
1200
1100
1100
1000
1000
0
0
1000
1000
900
900
800
800
700
700
600
600
500
500
400
400
950
950
900
900
850
850
800
800
750
750
-10
-10
-10
-10
-10
-10
V
V
Both Sections Enabled with EN=TEN=TTX=LLC=VSEL=1
Both Sections Enabled with EN=TEN=TTX=LLC=VSEL=1
CC
CC
V
V
=12 V, I
=12 V, I
CC
CC
V
V
0
0
= 12 V, V
= 12 V, V
CC
CC
0
0
0
0
= 12 V, R
= 12 V, R
OUT
OUT
time vs. temperature
temperature
=No Load
=No Load
10
10
OUT
OUT
10
10
10
10
SEL
SEL
= Shorted to GND
= Shorted to GND
= 11 kohm
= 11 kohm
20
20
20
20
20
20
30
30
30
30
30
30
T [°C]
T [°C]
T [°C]
T [°C]
T [°C]
T [°C]
40
40
40
40
40
40
50
50
50
50
50
50
60
60
60
60
60
60
70
70
70
70
70
70
80
80
80
80
80
80
90
90
90
90
90
90
Figure 15. Supply current vs. temperature ON
Figure 17. Output current limiting vs. R
Figure 19. Output current limiting vs.
140
140
130
130
120
120
110
110
100
100
90
90
80
80
70
70
60
60
50
50
40
40
550
550
500
500
450
450
400
400
350
350
300
300
1.4
1.4
1.2
1.2
0.8
0.8
0.6
0.6
0.4
0.4
0.2
0.2
-10
-10
1
1
0
0
-10
-10
10
10
V
V
CC
CC
V
V
V
V
= 12 V, V
= 12 V, V
CC
CC
CC
CC
0
0
12
12
=12 V, R
=12 V, R
= 12 V
= 12 V
0
0
time vs. temperature
temperature
OUT
OUT
10
10
14
14
10
10
SEL
SEL
= Shorted to GND
= Shorted to GND
= 22 Kohm
= 22 Kohm
16
16
20
20
20
20
18
18
30
30
30
30
R
R
20
20
SEL
SEL
T [°C]
T [°C]
T [°C]
T [°C]
40
40
[kOhm]
[kOhm]
40
40
22
22
50
50
50
50
24
24
60
60
60
60
26
26
28
28
70
70
70
70
SEL
30
30
80
80
80
80
32
32
90
90
90
90