lnbh25pqr STMicroelectronics, lnbh25pqr Datasheet - Page 21

• Manufacturer Part Number: lnbh25pqr
• Description: Lnb Supply And Control Ic With Step-up And I²c Interface
• Manufacturer: STMicroelectronics

LNBH25
Table 9.
Table 10.
(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
BIT
EN_IMON
TIMER
Name
Name
DATA 3 (Read/Write register. Register address = 0X4)
ISET
N/A = Reserved bit.
All bits reset to 0 at power-on.
DATA 4 (Read/Write register. Register address = 0X5)
PCL
ISW
OLR
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Value
Value
1
0
1
0
1
0
1
0
0
0
0
0
1
0
1
0
-
-
-
-
Current limit of LNB output (V
Refer to
Current Limit of LNB output (V
Refer to
DC-DC, inductor switching current limit set to 2.5 A typ.
DC-DC, inductor switching current limit set to 4 A typ.
Pulsed (Dynamic) LNB output current limiting is deactivated
Pulsed (Dynamic) LNB output current limiting is activated
Pulsed (Dynamic) LNB output current TON time set to 180 ms typ.
Pulsed (Dynamic) LNB output current TON time set to 90 ms typ.
Reserved. Keep to "0"
Reserved. Keep to "0"
Reserved. Keep to "0"
Reserved. Keep to "0"
IMON Diagnostic function is enabled. (V
IMON Diagnostic function is disabled, keep always at “0” if IMON is not used
Reserved
Reserved
In case 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 conditions is removed (OLF=0)
with the previous VSEL bits setting.
Reserved
Reserved
Section 2.6
Section 2.6
Doc ID 022433 Rev 3
OUT
in Application Information section.
in Application Information section.
pin) is disabled. The VSEL bits must be set again by the
OUT
OUT
pin) set to lower current range.
Description
Description
pin) set to default range.
OUT
is set to 21 V typ.)
I²C interface protocol
OUT
pin) is
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