lnbh25pqr STMicroelectronics, lnbh25pqr Datasheet - Page 11

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

LNBH25
3
Table 2.
Pin n°
15
16
17
2
3
4
6
7
8
9
Pin configuration
Figure 5.
Pin description
Symbol
P-GND
ADDR
ISEL
GND
SDA
BYP
SCL
V
FLT
LX
CC
Current selection
Bypass capacitor
Pin connections (top view)
Address setting
1
1
2
2
3
3
4
4
5
5
6
6
Analog ground
Power ground
N-MOS drain
Supply input
Serial clock
Serial data
PGND
PGND
ADDR
ADDR
LX-A
FLT
FLT
Name
NC
NC
NC
NC
LX
FLT
SCL
SCL
NC
NC
24
24
7
7
DSQOUT
DSQOUT
SDA
SDA
23
23
Doc ID 022433 Rev 3
8
8
Open drain output for IC fault conditions. It is set low in case of
overload (OLF bit) or overheating status (OTF bit) or power not good
(PNG) is detected. To be connected to pull-up resistor (5 V max.).
Integrated N-channel Power MOSFET drain.
DC-DC converter power ground. To be connected directly to the
Epad.
Two I²C bus addresses available by setting the address pin level
voltage. See
Clock from I²C BUS.
Bi-directional data from/to I²C BUS.
The resistor “RSEL” connected between ISEL and GND defines the
linear regulator current limit threshold. Refer to
Application Information section. Also see the ISET bit description in
Table
Analog circuits ground. To be connected directly to the Epad.
Needed for internal pre-regulator filtering. The BYP pin is intended
only to connect an external ceramic capacitor. Any connection of
this pin to external current or voltage sources may cause permanent
damage to the device.
8 to 16 V IC DC-DC power supply.
DSQIN/
DSQIN
EXTM
ISEL
ISEL
9.
22
22
9
9
VUP
VUP
NC
NC
21
21
10
10
Table 16
VOUT
VOUT
NC
NC
20
20
11
11
.
DETIN
DETIN
NC
NC
19
19
12
12
Pin function
BPSW
BPSW
VBYP
VBYP
VCC
VCC
GND
GND
NC
NC
NC
NC
AM09909v1
18
18
17
17
16
16
15
15
14
14
13
13
Section 2.6
Pin configuration
in the
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