LNBH25L STMicroelectronics, LNBH25L Datasheet - Page 18

• Manufacturer Part Number: LNBH25L
• Description: LNB supply and control IC with step-up and IA?C interface
• Manufacturer: STMicroelectronics

I²C interface protocol
Table 8.
Table 9.
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(MSB)
(MSB)
(LSB)
(LSB)
Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
BIT
BIT
THERM
Name
Name
Data 3 (read/write register. Register address = 0X4)
N/A = Reserved bit.
All bits reset to “0” at power-on.
Data 4 (read/write register. Register address = 0X5)
N/A = Reserved bit.
All bits reset to “0” at power-on.
PCL
OLR
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Value
Value
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
Reserved. Keep to “0”
Reserved. Keep to “0”
Pulsed (Dynamic) LNB output current limiting is deactivated
Pulsed (Dynamic) LNB output current limiting is activated
Reserved. Keep to “0”
Reserved. Keep to “0”
Reserved. Keep to “0”
Reserved. Keep to “0”
Reserved. Keep to “0”
Reserved. Keep to “0”
Reserved. Keep to “0”
Reserved. Keep to “0”
In case of overload protection activation (OLF=1), all VSEL 1..4 bits are reset to
“0” and LNB output (V
master after the overcurrent condition is removed (OLF=0).
In case of overload protection activation (OLF=1) the LNB output (V
automatically enabled as soon as the overload condition is removed (OLF=0) with
the previous VSEL bits setting.
Reserved. Keep to “0”
Reserved. Keep to “0”
If thermal protection is activated (OTF=1), all VSEL 1..4 bits are reset to “0” and
LNB output (V
after the overtemperature condition is removed (OTF=0).
In case of thermal protection activation (OTF=1) the LNB output (V
automatically enabled as soon as the overtemperature condition is removed
(OTF=0) with the previous VSEL bits setting.
Reserved. Keep to “0”
Doc ID 022634 Rev 2
OUT
pin) is disabled. The VSEL bits must be set again by the master
OUT
pin) is disabled. The VSEL bits must be set again by the
Description
Description
OUT
OUT
pin) is
LNBH25L
pin) is