lnbh23qtr STMicroelectronics, lnbh23qtr Datasheet - Page 23

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

Figure 14.
Figure 16. Dynamic overload protection OFF
Figure 18. Output current limiting vs
40
40
35
35
30
30
25
25
20
20
15
15
10
10
1200
1200
1100
1100
1000
1000
1000
1000
900
900
800
800
700
700
600
600
5
5
0
0
950
950
900
900
850
850
800
800
750
750
-10
-10
-10
-10
EN=TEN=TTX=LLC=VSEL=1
EN=TEN=TTX=LLC=VSEL=1
-10
-10
V
V
I
I
O
O
CC
CC
V
V
V
V
=No Load
=No Load
CC
CC
O
O
=12V
=12V
0
0
=Shorted to GND
=Shorted to GND
=12V
=12V
V
V
0
0
CC
CC
0
0
=12V, R
=12V, R
Time vs temperature
temperature
Supply current vs temperature
10
10
10
10
10
10
SEL
SEL
=11K
=11K
20
20
20
20
20
20
30
30
30
30
30
30
T [°C]
T [°C]
40
40
T [°C]
T [°C]
T [°C]
T [°C]
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. Dynamic overload protection 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
1.4
1.4
1.2
1.2
0.8
0.8
0.6
0.6
0.4
0.4
0.2
0.2
550
550
500
500
450
450
400
400
350
350
300
300
1
1
0
0
-10
-10
10
10
-10
-10
V
V
CC
CC
V
V
=12V, V
=12V, V
V
V
CC
CC
0
0
12
12
CC
CC
=12V, R
=12V, R
=12V
=12V
0
0
O
O
time vs temperature
temperature
=Shorted to GND
=Shorted to GND
14
14
10
10
SEL
SEL
10
10
=22K
=22K
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
[K ]
[K ]
40
40
22
22
50
50
50
50
24
24
60
60
60
60
26
26
70
70
28
28
70
70
SEL
30
30
80
80
80
80
23/32
32
32
90
90
90
90