LNBH30 datasheet(9/27 Pages) STMICROELECTRONICS

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LNBH30

Pin configuration

DocID023739 Rev 2

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Pin configuration

Figure 2: Pin connections (top view)

Table 2: Pin description

Symbol

Name

Pin function

PGND

Power ground

DC-DC converter power ground. To be connected directly to the

exposed pad

RES

Reserved

Reserved pin. To be left floating. Do not connect to GND

ADDR

Address setting

Two I

2C bus addresses available by setting the address pin level

voltage. See Table 11: "Address pin characteristics"

SCL

Serial clock

Clock from I²C bus

SDA

Serial data

Bi-directional data from/to I²C bus

ISEL

Current

selection

The resistor “RSEL” connected between ISEL and GND defines the

linear regulator current limit threshold. Refer to Section 2.1: "Output

current limit selection"

GND

Analog ground

Analog circuit ground. To be connected directly to the exposed pad

BYP

Bypass

capacitor

Needed for internal pre-regulator filtering. The BYP pin is intended to

connect an external ceramic capacitor only. Any connection of this pin

to external current or voltage sources may cause permanent damage

to the device

VCC

Supply input

10 to 17.5 V IC DC-DC power supply

VOUT

LNB output port

Output of the integrated very low drop linear regulator. See Table 8:

"Output voltage selection (data register, write mode)"

VUP

Step-up voltage

Input of linear post-regulator. The voltage on this pin is monitored by

the internal step-up controller to keep a minimum dropout across the

linear pass transistor

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