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LNBH25 Datasheet(PDF) 11 Page - STMicroelectronics

Part # LNBH25
Description  Selectable output current limit by external resistor
PDF  34 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LNBH25 Datasheet(HTML) 11 Page - STMicroelectronics

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LNBH25
Pin configuration
Doc ID 022433 Rev 4
11/34
3
Pin configuration
Figure 5.
Pin connections (top view)
GND
DSQOUT
NC
DSQIN/
EXTM
VUP
VCC
PGND
FLT
NC
LX-A
SDA
ISEL
NC
NC
DETIN
NC
NC
VOUT
NC
VBYP
BPSW
ADDR
NC
SCL
1
2
3
4
5
6
18
17
16
15
14
13
7
8
9
12
11
10
19
20
21
22
23
24
GND
DSQOUT
NC
DSQIN
VUP
VCC
PGND
FLT
NC
LX
SDA
ISEL
NC
NC
DETIN
NC
NC
VOUT
NC
VBYP
BPSW
ADDR
NC
SCL
1
2
3
4
5
6
18
17
16
15
14
13
7
8
9
12
11
10
19
20
21
22
23
24
AM09909v1
Table 2.
Pin description
Pin n°
Symbol
Name
Pin function
2FLT
FLT
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.).
3
LX
N-MOS drain
Integrated N-channel Power MOSFET drain.
4
P-GND
Power ground
DC-DC converter power ground. To be connected directly to the
Epad.
6
ADDR
Address setting
Two I²C bus addresses available by setting the address pin level
voltage. See
Table 16.
7
SCL
Serial clock
Clock from I²C BUS.
8
SDA
Serial data
Bi-directional data from/to I²C BUS.
9
ISEL
Current selection
The resistor “RSEL” connected between ISEL and GND defines the
linear regulator current limit threshold. Refer to
Section 2.6 in the
Application Information section. Also see the ISET bit description in
Table 9.
15
GND
Analog ground
Analog circuits ground. To be connected directly to the Epad.
16
BYP
Bypass capacitor
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.
17
VCC
Supply input
8 to 16 V IC DC-DC power supply.



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