ISL9491A集成電路（IC）的特殊用途穩(wěn)壓器規(guī)格書PDF中文資料
| 廠商型號 |
ISL9491A |
| 參數(shù)屬性 | ISL9491A 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；ISL9491A應(yīng)用范圍：轉(zhuǎn)換器，衛(wèi)星信號接收機(jī)頂盒設(shè)計(jì)；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 |
| 封裝外殼 | 16-VQFN 裸露焊盤 |
| 文件大小 |
354 Kbytes |
| 頁面數(shù)量 |
14 頁 |
| 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(biāo)識 |  |
| 數(shù)據(jù)手冊 | |
| 更新時(shí)間 | 2025-2-15 22:59:00 |
ISL9491A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-T
- 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(yīng)用：
轉(zhuǎn)換器，衛(wèi)星信號接收機(jī)頂盒設(shè)計(jì)
- 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(yīng)商器件封裝：
16-QFN（4x4）
- 描述：
IC REG CONV SATELLIT 1OUT 16QFN
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
INTERSIL |
23+ |
NA/ |
21575 |
原裝現(xiàn)貨,當(dāng)天可交貨,原型號開票 |
詢價(jià) | ||
INTERS |
2020+ |
80000 |
只做自己庫存,全新原裝進(jìn)口正品假一賠百,可開13%增 |
詢價(jià) | |||
INTERSIL |
24+ |
NA |
990000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價(jià) | ||
INTERSIL |
1006+ |
DFN |
2378 |
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
詢價(jià) | ||
INTERSIL/RENESAS |
22+ |
NA |
63 |
原裝正品支持實(shí)單 |
詢價(jià) | ||
INTERSIL |
08/09+ |
QFN-16 |
1500 |
普通 |
詢價(jià) | ||
intersil |
21+ |
QFN |
10000 |
原裝現(xiàn)貨假一罰十 |
詢價(jià) | ||
INTERS |
23+ |
28000 |
原裝正品 |
詢價(jià) | |||
INTERSIL |
22+ |
QFN16 |
8000 |
原裝正品支持實(shí)單 |
詢價(jià) | ||
Intersil |
22+ |
16QFN |
9000 |
原廠渠道,現(xiàn)貨配單 |
詢價(jià) |
