LNBP8V7V

更新时间： 2024-11-29 03:51:51

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		稳压器
页数	文件大小	规格书
8页	133K
描述
LNB SUPPLY AND CONTROL VOLTAGE REGULATOR

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中文翻译

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LNBP8V7V 数据手册

LNBP8

LNBP9

LNB SUPPLY AND CONTROL VOLTAGE REGULATOR

■

SIMPLEST INTEGRATED SOLUTION FOR

THE LNB REMOTE SUPPLY AND CONTROL

500mA GUARANTEED OUTPUT CURRENT

DUAL INPUT SUPPLY FOR REDUCING

POWER DISSIPATION

■

22KHZ BUILT-IN TONE OSCILLATOR

(LNBP9 VERSION)

FAST OSCILLATOR START-UP FOR

DiSEqC ENCODING (LNBP9 VERSION)

Heptawatt

AUXILIARY MODULATION INPUT FOR

MORE FLEXIBILITY (LNBP8 VERSION)

■

STAND-BY FUNCTION

SHORT CIRCUIT AND

OVERTEMPERATURE PROTECTION

AVAILABLE IN THRU-HOLE PACKAGE

tolerance of +/- 2KHz, thus no further adjustment

or external components are required.

A burst coding of the 22KHz tone can be

accomplished thanks to the fast response of the

TONE input and the prompt oscillator start-up.

This helps designers which want to implement the

■

DESCRIPTION

Intended for analog and digital satellite receivers,

the LNBP is a monolithic linear voltage regulator,

DiSEqC protocols.

In order to improve design flexibility and to allow

implementation of other LNB remote control

standards, an analogic modulation input pin

(EXTM) is available (LNBP8 version only). An

appropriate DC blocking capacitor must be used

to couple the modulating signal source to the

EXTM pin.

assembled in Heptawatt , specifically designed

to provide the powering voltages and the

interfacing signals to the LNB down-converter.

The regulator output can be logic controlled to be

13V or 18V (typ.) by mean of the V

pin for the

SEL

remote controlling of the LNB. In order to reduce

the power dissipation of the device when the

lowest output voltage is selected, the regulator

Both versions integrate thermal and short circuit

protection.

The device is packaged in Heptawatt for an easy

thru-hole mounting. If an adequate Heatsink is

provided and higher power losses are acceptable,

both supply pins can be powered by the same 23V

source without affecting any other circuit

performance.

When the IC is powered and put in Stand-by (EN

pin LOW), the regulator output is disabled and the

IC power consumption is reduced to 300µA typ.

has 2 supply inputs (V

and V

). They must

CC1

CC2

be powered respectively at 15V (min.) and 22V

(min.), and an internal switch will automatically

select the appropriate supply voltage according to

the selected output voltage.

The TONE pin (only for the LNBP9 version)

activates the internal oscillator so that the DC

output is modulated by a 22KHz square wave.

This internal oscillator is factory trimmed within a

Table 1: Order Codes

TYPE

HEPTAWATT

LNBP8

LNBP9

LNBP8V7V

LNBP9V7V

Rev. 1

1/8

November 2004

12 3 4 5 6 7 8

中文翻译

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与LNBP8V7V相关器件

型号	品牌	获取价格	描述	数据表
LNBP9	STMICROELECTRONICS	获取价格	LNB SUPPLY AND CONTROL VOLTAGE REGULATOR
LNBP9K7	STMICROELECTRONICS	获取价格	LNB Supply and control voltage regulator
LNBP9K7-R	STMICROELECTRONICS	获取价格	LNB Supply and control voltage regulator
LNBP9V7V	STMICROELECTRONICS	获取价格	LNB SUPPLY AND CONTROL VOLTAGE REGULATOR
LNBS21	STMICROELECTRONICS	获取价格	LNB SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND I2C INTERFACE
LNBS21_04	STMICROELECTRONICS	获取价格	LNB SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND I2C INTERFACE
LNBS21PD	STMICROELECTRONICS	获取价格	LNB SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND I2C INTERFACE
LNBS21PD-TR	STMICROELECTRONICS	获取价格	LNB SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND I2C INTERFACE
LNBTVS	STMICROELECTRONICS	获取价格	Transilâ¢ for low noise block protection
LNBTVS3	STMICROELECTRONICS	获取价格	Transilâ¢ for low noise block protection

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