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ISL9491AERZ集成電路(IC)的特殊用途穩(wěn)壓器規(guī)格書PDF中文資料

ISL9491AERZ
廠商型號

ISL9491AERZ

參數(shù)屬性

ISL9491AERZ 封裝/外殼為16-VQFN 裸露焊盤;包裝為卷帶(TR);類別為集成電路(IC)的特殊用途穩(wěn)壓器;ISL9491AERZ應用范圍:轉(zhuǎn)換器,衛(wèi)星信號接收機頂盒設(shè)計;產(chǎn)品描述:IC REG CONV SATELLIT 1OUT 16QFN

功能描述

Single Output LNB Supply Voltage Regulator for Satellite Set-Top Box Applications

文件大小

354 Kbytes

頁面數(shù)量

14

生產(chǎn)廠商 Intersil Corporation
企業(yè)簡稱

Intersil

中文名稱

Intersil Corporation官網(wǎng)

原廠標識
數(shù)據(jù)手冊

下載地址一下載地址二到原廠下載

更新時間

2024-12-22 23:00:00

ISL9491AERZ規(guī)格書詳情

These devices are designed for supplying power and

control signals from advanced satellite set-top box (STB)

modules to the low noise blocks (LNBs) of single antenna

ports. Each device consists of a current-mode 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.

The current-mode boost converters provide the linear

regulator with input voltage that is set to the voltage at

the VOUT pin plus a minimal drop to insure minimum

power dissipation across the internal LDO. This maintains

constant voltage drop across the linear pass element

while permitting adequate voltage range for tone

injection.

The final regulated output voltage is available at the

cathode of the back diode to support the operation of an

antenna port for a single tuner. The outputs can be set to

various voltage level for the desired polarization

reception by means of the logic presented to the VSET0

and VSET1 pins. An EN pin is to be driven high to enable

the outputs for the PWM and linear combination; setting

EN low disables the output, forcing a shutdown mode.

The external modulation input (EXTM) can accept a tone

modulated DiSEqC command and transfer it

symmetrically to the output to meet DiSEqC 1.x protocol.

An external DiSEqC tank circuit can also be implemented

to support DiSEqC 2.x.

Features

? Single Chip Power Solution

- Operation for 1-Tuner/1-Dish Applications

? Switch-Mode Power Converter for Lowest Dissipation

- Boost PWMs with >92 Efficiency

- Pin Controllable Enable and Output

? 2.5V/3.3V/5V Logic Compatible

? FAULT Signal

? DIRECTV SWM Compliant

? VSET Pin to Toggle between Vertical and Horizontal

Polarizations

? External Tone Input

? Internal Overcurrent and Over-Temperature

Protection

? Pb-Free (ROHs Compliant)

Applications

? LNB Power Supply and Control for Satellite Set-Top

Box

產(chǎn)品屬性

  • 產(chǎn)品編號:

    ISL9491AERZ

  • 制造商:

    Renesas Electronics America Inc

  • 類別:

    集成電路(IC) > 特殊用途穩(wěn)壓器

  • 包裝:

    卷帶(TR)

  • 應用:

    轉(zhuǎn)換器,衛(wèi)星信號接收機頂盒設(shè)計

  • 電壓 - 輸入:

    8V ~ 11V

  • 輸出數(shù):

    1

  • 電壓 - 輸出:

    11V ~ 16V

  • 工作溫度:

    -20°C ~ 85°C

  • 安裝類型:

    表面貼裝型

  • 封裝/外殼:

    16-VQFN 裸露焊盤

  • 供應商器件封裝:

    16-QFN(4x4)

  • 描述:

    IC REG CONV SATELLIT 1OUT 16QFN

供應商 型號 品牌 批號 封裝 庫存 備注 價格
INTERSIL
23+
NA/
21575
原裝現(xiàn)貨,當天可交貨,原型號開票
詢價
INTERS
2020+
80000
只做自己庫存,全新原裝進口正品假一賠百,可開13%增
詢價
INTERSIL
24+
NA
990000
明嘉萊只做原裝正品現(xiàn)貨
詢價
INTERSIL/RENESAS
22+
NA
63
原裝正品支持實單
詢價
INTERSIL
QFN-16
68900
原包原標簽100%進口原裝常備現(xiàn)貨!
詢價
INTERSIL
22+
QFN16
8000
原裝正品支持實單
詢價
Renesas Electronics Corporatio
23+/24+
16-VQFN
8600
只供原裝進口公司現(xiàn)貨+可訂貨
詢價
INTERSIL
23+
QFN
5000
原裝正品,假一罰十
詢價
INTERSIL
24+
QFN
25500
授權(quán)代理直銷,原廠原裝現(xiàn)貨,假一罰十,特價銷售
詢價
INTERSIL
22+
QFN
9600
原裝現(xiàn)貨,優(yōu)勢供應,支持實單!
詢價