LNBH26 STMicroelectronics, LNBH26 Datasheet - Page 25

• Manufacturer Part Number: LNBH26
• Description: Dual LNB supply and control IC with step-up and I2C interface
• Manufacturer: STMicroelectronics

LNBH26
Table 10.
(MSB)
(LSB)
Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Bit
EN_IMON-
EN_IMON-
THERM
COMP
Name
OLR
N/A
N/A
N/A
A
B
DATA 4 (Read/Write register. Register address = 0X5)
A/B
A/B
CH
A
B
Value
1
0
1
0
1
0
1
0
1
0
0
0
0
IMON diagnostic function is
IMON diagnostic function is disabled. Keep always at “0” if IMON is not used.
Reserved. Keep to “0”
Reserved. Keep to “0”
In the case of overload protection activation (OLF=1), all VSEL bits are reset
to “0” and LNB relevant output (V
set again by the master after the overcurrent condition is removed (OLF=0).
In the case of overload protection activation (OLF=1) the LNB output (V
pin) is automatically enabled as soon as the overload condition is removed
(OLF=0) with the previous VSEL bit setting.
IMON diagnostic function is enabled
IMON diagnostic function is disabled. Keep always at “0” if IMON is not used.
Reserved. Keep to “0”
If thermal protection is activated (OTF=1), all VSEL bits are reset to “0” and
LNB output (V
be set again by the master after the overtemperature condition is removed
(OTF=0).
In the case of thermal protection activation (OTF=1) the LNB output (V
pin) is automatically enabled as soon as the overtemperature condition is
removed (OTF=0) with the previous VSEL bit setting.
DC-DC converter compensation set to use HIGH E.S.R. capacitors (V
DC-DC converter compensation set to use LOW E.S.R. capacitors (V
Doc ID 022771 Rev 1
OUT
pin) is disabled (both section A & B). The VSEL bits must
enabled.
Description
OUT
pin) is disabled. The VSEL bits must be
(V
OUT
is set to 21 V typ.)
I²C interface protocol
UP
UP
OUT
OUT
pin)
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pin)