lnbh23qtr STMicroelectronics, lnbh23qtr Datasheet - Page 24

• Manufacturer Part Number: lnbh23qtr
• Description: Lnbs Supply And Control Ic With Step-up And I??c Interface
• Manufacturer: STMicroelectronics

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Figure 20. Tone frequency vs temperature
Figure 22. Tone duty cycle vs temperature
Figure 24. Tone fall time vs temperature
14
14
13
13
12
12
11
11
10
10
55
55
54
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53
53
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50
50
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21
21
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20
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18
9
9
8
8
7
7
6
6
5
5
4
4
-10
-10
-10
-10
-10
-10
V
V
EN=TEN=TTX=1
EN=TEN=TTX=1
EN=TEN=TTX=1
EN=TEN=TTX=1
V
V
V
V
EN=TEN=TTX=1
EN=TEN=TTX=1
CC
CC
CC
CC
CC
CC
=12V, I
=12V, I
=12V, I
=12V, I
=12V, I
=12V, I
0
0
0
0
0
0
O
O
=50mA
=50mA
O
O
O
O
=50mA
=50mA
=50mA
=50mA
10
10
10
10
10
10
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 21. Tone amplitude vs temperature
Figure 23. Tone rise time vs temperature
Figure 25. Output backward current vs
1000
1000
900
900
800
800
700
700
600
600
500
500
400
400
-1
-1
-2
-2
-3
-3
-4
-4
14
14
13
13
12
12
11
11
10
10
0
0
9
9
8
8
7
7
6
6
5
5
4
4
-10
-10
-10
-10
-10
-10
V
V
V
V
EN=TEN=TTX=1
EN=TEN=TTX=1
EN=TEN=TTX=1
EN=TEN=TTX=1
CC
CC
CC
CC
V
V
CC
CC
=12V, I
=12V, I
=12V, V
=12V, V
EN=0
EN=0
0
0
=12V, I
=12V, I
0
0
0
0
O
O
=50mA
=50mA
temperature
OBK
OBK
O
O
10
10
=50mA
=50mA
10
10
10
10
=21V externally forced
=21V externally forced
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
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70
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90
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90
90