LNBK20D2

更新时间： 2024-11-27 03:46:59

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		稳压器模拟IC 信号电路光电二极管
页数	文件大小	规格书
14页	469K
描述
LNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)

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中文翻译

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技术参数
数据手册

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LNBK20D2 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	SOIC	包装说明：	SO-20
针数：	20	Reach Compliance Code：	unknown
HTS代码：	8542.39.00.01	风险等级：	5.87
其他特性：	ALSO REQUIRES A 22V TO 27V SUPPLY	模拟集成电路 - 其他类型：	ANALOG CIRCUIT
JESD-30 代码：	R-PDSO-G20	JESD-609代码：	e4
长度：	12.8 mm	湿度敏感等级：	1
功能数量：	1	端子数量：	20
最高工作温度：	85 °C	最低工作温度：
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装等效代码：	SOP20,.4	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	NOT SPECIFIED
电源：	16,23 V	认证状态：	Not Qualified
座面最大高度：	2.65 mm	子类别：	Power Management Circuits
最大供电电流 (Isup)：	6 mA	最大供电电压 (Vsup)：	27 V
最小供电电压 (Vsup)：	15 V	标称供电电压 (Vsup)：	16 V
表面贴装：	YES	技术：	BIPOLAR
温度等级：	COMMERCIAL EXTENDED	端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	7.5 mm	Base Number Matches：	1

LNBK20D2 数据手册

LNBK20D2

LNB SUPPLY AND CONTROL VOLTAGE

REGULATOR (PARALLEL INTERFACE)

■

COMPLETE INTERFACE FOR TWO LNBs

REMOTE SUPPLY AND CONTROL

■

GUARANTEED 400mA OUTPUT CURRENT

LNB SELECTION AND STAND-BY

FUNCTION

■

BUILT-IN TONE OSCILLATOR FACTORY

TRIMMED AT 22KHz

FAST OSCILLATOR START-UP FACILITATES

DiSEqC ENCODING

TWO SUPPLY INPUTS FOR LOWEST

DISSIPATION

BYPASS FUNCTION FOR SLAVE

OPERATION

LNB SHORT CIRCUIT PROTECTION AND

DIAGNOSTIC

AUXILIARY MODULATION INPUT EXTENDS

FLEXIBILITY

SO-20

(MI) and the LNBA pin, thus leaving all LNB

powering and control functions to the Master

Receiver. This electronic switch is closed when

the device is powered and EN pin is LOW.

The regulator outputs can be logic controlled to be

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

remote controlling of LNBs. Additionally, it is

possible to increment by 1V (typ.) the selected

voltage value to compensate the excess voltage

drop along the coaxial cable (LLC pin HIGH).

In order to reduce the power dissipation of the

device when the lowest output voltage is selected,

■

CABLE LENGTH COMPENSATION

INTERNAL OVER TEMPERATURE

PROTECTION

BACKWARD CURRENT PROTECTION

COST-EFFECTIVE VERSION OF LNBP

SERIES

■

DESCRIPTION

the regulator has two Supply Input pins V

and

CC1

Intended for analog and digital satellite receivers,

the LNBK20D2 is a monolithic linear voltage

regulator, assembled in SO-20, specifically

designed to provide the powering voltages and the

interfacing signals to the LNB downconverter

situated in the antenna via the coaxial cable. It has

the same functionality of the LNBP1X and

LNBP20 series, at a reduced output current

capability. Since most satellite receivers have two

antenna ports, the output voltage of the regulator

is available at one of two logic-selectable output

pins (LNBA, LNBB). When the IC is powered and

put in Stand-by (EN pin LOW), both regulator

outputs are disabled to allow the antenna

downconverters to be supplied/controlled by

others satellite receivers sharing the same coaxial

lines. In this occurrence the device will limit at 3

mA (max) the backward current that could flow

from LNBA and LNBB output pins to GND.

. They must be powered respectively at 16V

CC2

(min) and 23V (min), and an internal switch

automatically will select the suitable supply pin

according to the selected output voltage. If

adequate heatsink is provided and higher power

losses are acceptable, both supply pins can be

affecting any other circuit performance.

The ENT (Tone Enable) pin activates the internal

oscillator so that the DC output is modulated by a

±0.3 V, 22KHz (typ.) square wave. This internal

oscillator is factory trimmed within a tolerance of

±2KHz, thus no further adjustments neither

external components are required.

A burst coding of the 22KHz tone can be

accomplished thanks to the fast response of the

ENT input and the prompt oscillator start-up. This

helps designers who want to implement the

DiSEqC protocols (*).

For slave operation in single dish, dual receiver

systems, the bypass function is implemented by

an electronic switch between the Master Input pin

In order to improve design flexibility and to allow

implementation of newcoming LNB remote control

standards, an analogic modulation input pin is

July 2003

1/14

12 3 4 5 6 7...14

中文翻译

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与LNBK20D2相关器件

型号	品牌	获取价格	描述	数据表
LNBK20PD	STMICROELECTRONICS	获取价格	LNB SUPPLY AND CONTROL VOLTAGE REGULATOR PARALLEL INTERFACE
LNBK20PD-TR	STMICROELECTRONICS	获取价格	DUAL OUTPUT, FIXED POSITIVE REGULATOR, PDSO20, POWER, SO-20
LNBK20SP	STMICROELECTRONICS	获取价格	LNBK20SP
LNBP10	STMICROELECTRONICS	获取价格	LNB SUPPLY AND CONTROL VOLTAGE REGULATOR PARALLEL INTERFACE
LNBP10L	STMICROELECTRONICS	获取价格	500 mA guaranteed output current
LNBP10LPUR	STMICROELECTRONICS	获取价格	0.85A SWITCHING REGULATOR, 24kHz SWITCHING FREQ-MAX, PDSO8, 5 X 6 MM, ROHS COMPLIANT, DFN-
LNBP10SP	STMICROELECTRONICS	获取价格	LNB SUPPLY AND CONTROL VOLTAGE REGULATOR PARALLEL INTERFACE
LNBP10SP-TR	STMICROELECTRONICS	获取价格	LNBP supply and control voltage regulator (parallel interface)
LNBP11	STMICROELECTRONICS	获取价格	LNB SUPPLY AND CONTROL VOLTAGE REGULATOR PARALLEL INTERFACE
LNBP11L	STMICROELECTRONICS	获取价格	500 mA guaranteed output current

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