LNBH24 STMicroelectronics, LNBH24 Datasheet - Page 21

• Manufacturer Part Number: LNBH24
• Description: Dual LNB supply and control IC with step-up and I2C interface
• Manufacturer: STMicroelectronics

Table 10.
Table 11.
Table 12.
V
V
V
V
Symbol
Symbol
Symbol
ADDR-A1
ADDR-A2
ADDR-B1
ADDR-B2
V
V
I
TH-L
TH-L
TH
"0001000(R/W)" Address pin
voltage range for section A
"0001001(RW)" Address pin
voltage range for section A
"0001010(R/W)" Address pin
voltage range for section B
"0001011(RW)" Address pin
voltage range for section B
Minimum current diagnostic
threshold
Diagnostic low threshold at
V
Diagnostic low threshold at
V
T
Address pins characteristics
Refer to the typical application circuit in
VSEL=LLC=TEN=PCL=ITEST=TTX=AUX=0, R
mA, unless otherwise stated. Typical values are referred to T
See software description section for I²C access to the system register.
Output voltage diagnostic (VMON bit) characteristics of sections A/B
NB: if the output voltage is lower than the min. value the VMON I²C bit is set to 1.
When VSEL=0: If VMON=0 then V
When VSEL=1: If VMON=0 then V
Refer to the typical application circuit in
VSEL=LLC=TEN=PCL=TTX=0, DSQIN=LOW, R
otherwise stated. Typical values are referred to T
software description section for I²C access to the system register.
Minimum output current diagnostic (IMON bit) characteristics of sections A/B
NB: if the output current is lower than the min. threshold limit the IMON I²C bit is set to 1. If the output current is
O
O
J
=13.4V typ.
=18.5V typ.
from 0 to 85 °C, V
higher than the max threshold limit the IMON I²C bit is set to 0.
Parameter
Parameter
Parameter
I
= 12 V.
Section “A” address selection
Section “B” address selection
R/W bit determines the transmission
mode: read (R/W=1) write (R/W=0)
R/W bit determines the transmission
mode: read (R/W=1) write (R/W=0)
R/W bit determines the transmission
mode: read (R/W=1) write (R/W=0)
R/W bit determines the transmission
mode: read (R/W=1) write (R/W=0)
O
O
ITEST=1, AUX=0/1
ITEST=0, AUX=0/1
EN=1, VSEL=0
LLC=0
EN=VSEL=1
LLC=0
>85% of V
>84% of V
O
O
Test condition
Test condition
Test condition
typ.; If VMON=1 then V
typ.; If VMON=1 then V
Figure
Figure
4, T
4, T
SEL
SEL
J
= 25 °C. V
J
J
= 11 kΩ, DSQIN=LOW, V
from 0 to 85 °C, EN=1,
from 0 to 85 °C, EN=1,
= 11 kΩ, V
O
O
<95% of V
<96% of V
J
O
= 25 °C. V
=V
Min.
I
Min.
= 12 V, I
2.5
0
2
0
2
Min.
oRX
5
85
84
O
O
pin voltage. See
typ.
typ.
Typ.
Typ.
O
Typ.
12
6
O
90
90
=V
= 50 mA, unless
oRX
Max.
I
0.8
0.8
=12 V, I
Max.
5
5
Max.
20
10
95
96
pin voltage.
O
Unit
Unit
Unit
mA
V
V
V
V
= 50
21/30
%
%