Datasheet > INN8186

INN8186

更新时间： 2022-02-26 12:36:07

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描述
Highly Integrated LNB Supply and Control Voltage Regulator

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INN8186 数据手册

INNOTECH

vodasat@gmail.com 13510327305

INN8186

DS_V1p0_Revised_Nov_2012

Highly Integrated LNB Supply and Control Voltage Regulator

For details, check for samples:

INN8186

Features

Applications



Low noise output to avoid sensitivity of Can

Tuner and DISH’s LNA dropping down

Noise <+/-40mV@300MHz BWL

Noise <+/-20mV@20MHz BWL



LNB Power supply and control for Satellite

Set-Top Box

Digital STB

Satellite TV cards



Single chip power solution with 650mV Vpp

22KHz tone control signal transferred to output

LNB Voltages (2 levels: 14.3V and 19.3V)

compatible with common standards

External 22KHz tone input

Integrated DC DC boost converter and high

efficiency (typ. 93%) with integrated Power

Mosfet

Integrated low Noise Linear Regulator

Integrated power switches and current sensing

Internal overcurrent and over temperature

protection

Provides up to 450mA continuous load current

Output current limit of 500mA typical, with 48ms

timer

Descriptions

Intended for analog and digital satellite

receivers/sat-TV, sat-OC cards, the INN8186 is a

monolithic voltage regulator and interface IC,

packaged in SOP8EP, specifically designed to

provide the 14/19V power supply with high

efficiency and the 22kHz tone signaling to the LNB

down-converter in the antenna dish or to the

multi-switch box.

INN8186 consists of a boost converter and a

low-noise linear regulator along with the circuitry

required for tone injection and pin controllable

interface. The device makes the total LNB supply

design simple, efficient and compact with low

external component count



Push-pull output stage minimizes 14  19V and

19V 14V output transition times

Internal Short Protection

Meet DiSEqC1.x protocol

5.0V, 3.3V, 2.5V, 1.8V, 1.2 and 1.05V logic

compatible

The external modulation input (TONE pin) can

accept a tome modulated DiSEqC command and

transfer it symmetrically to the output to meet

DiSEqC 1.x protocol.



1.0MHz Switch Frequency BOOST

Highly Integrated with

components

fewer external

Typical Application

For DiSeqC 1.X

L1 10uH 2A

D0 Schottky SK24

Input

22µF/25V

Ceramic

10nF

100nF

Ceramic

10µF/25V

Ceramic

19.3V

450mA

Out

VSW VCP

14.3V

VLNB

VIN

INN8190

Co5

100nF

INN8186

Logic

S18V

TONE

Ground

Confidential

INNOTECH Proprietary Information. Unauthorized Photocopy and Duplication Prohibited

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