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ISL9492ERZ中文资料PDF规格书
厂商型号 |
ISL9492ERZ |
参数属性 | ISL9492ERZ 封装/外壳为28-WFQFN 裸露焊盘;包装为管件;类别为集成电路(IC) > 特殊用途稳压器;ISL9492ERZ应用范围:转换器,卫星信号接收机顶盒设计;产品描述:IC REG CONV SATELLIT 1OUT 28TQFN |
功能描述 | Single Output LNB Supply and Control Voltage Regulator with I2C Interface for Satellite Set-Top Box Designs |
文件大小 |
1.09705 Mbytes |
页面数量 |
21 页 |
生产厂商 | Intersil Corporation |
企业简称 |
Intersil【瑞萨电子】 |
中文名称 | 瑞萨电子株式会社官网 |
原厂标识 | |
数据手册 | |
更新时间 | 2024-6-10 11:11:00 |
ISL9492ERZ规格书详情
The ISL9492 is a highly integrated voltage regulator and
interface IC specifically designed for supplying power and control
signals from advanced satellite set-top box (STB) modules to the
low noise blocks (LNB) of a single antenna port. It also supports
DiSEqC tone generation and modulation with diagnostic status
read-back. Controlling the ISL9492 is simple via the I2C bus by
writing 8 bit words onto the System Registers (SR).
The device design makes the total LNB supply design simple,
efficient and compact with low external component count by
integrating Boost power MOSFET, current-mode boost PWM and
a low-noise linear regulator. The current-mode boost converters
provide the linear regulator with input voltage that is set to the
final output voltages, plus typically 0.9V to insure minimum
power dissipation across each linear regulator.
The LNB output voltage can be controlled in two ways; by full control
from I2C using the VTOP and VBOT bits or by setting the I2C to the
lower range and switching to higher range with the select VTOP pin.
The External modulation input EXTM accepts a modulated DISEqC
command and transfers it symmetrically to the output. The EXTM
pin can be used to modulate the continuous internal tone. The fault
signal serves as an interrupt for the processor when any condition
turns OFF the LNB controller (over-temperature, overcurrent,
disable). The states of these flags to the faults can be thoroughly
examined through the I2C registers.
Features
• Single-Chip Power Solution
- Operation for 1-Tuner/1-Dish Applications
- Integrated DC/DC Converter and I2C Interface
• Integrated Boost MOSFET
• Switch-Mode Power Converter for Lowest Dissipation
- 490kHz Boost Switching Frequency
- Boost PWMs with > 92 Efficiency
- Selectable 13.5V or 18.5V Outputs
- I2C and Pin Controllable Output
• 31V Output Back-Bias Capability
• Built-in Tone Oscillator Factory
- Facilitates DiSEqC (EUTELSAT) Encoding
- Trimmed to 22kHz
- External Modulation Input
• DiSEqC 2.0 Support and Diagnostics
• Internal Overvoltage, Undervoltage, Overcurrent Protection,
Over-Temperature Flags Accessible through the I2C Interface
and Fault Signal Status Pin
• Short-Circuit Protection
Applications
• LNB Power Supply and Control for Satellite Set-Top Box
产品属性
- 产品编号:
ISL9492ERZ
- 制造商:
Renesas Electronics America Inc
- 类别:
集成电路(IC) > 特殊用途稳压器
- 包装:
管件
- 应用:
转换器,卫星信号接收机顶盒设计
- 电压 - 输入:
8V ~ 14V
- 输出数:
1
- 电压 - 输出:
13.5V ~ 20V
- 工作温度:
-20°C ~ 85°C
- 安装类型:
表面贴装型
- 封装/外壳:
28-WFQFN 裸露焊盘
- 供应商器件封装:
28-QFN(4x4)
- 描述:
IC REG CONV SATELLIT 1OUT 28TQFN
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
INTERSI |
2020+ |
QFN-28 |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
RENESAS(瑞萨)/IDT |
2117+ |
TQFN-28(4x4) |
315000 |
75个/管一级代理专营品牌!原装正品,优势现货,长期 |
询价 | ||
INTERSIL |
QFN |
265209 |
假一罚十原包原标签常备现货! |
询价 | |||
Renesa |
21+ |
25000 |
原厂原包 深圳现货 主打品牌 假一赔百 可开票! |
询价 | |||
INTERSIL |
22+ |
QFN |
2000 |
原厂原包装。假一罚十。可开13%增值税发票。 |
询价 | ||
Intersil |
2318+ |
VQFN-16 |
6890 |
长期供货进口原装热卖现货 |
询价 | ||
INTERSIL |
23+ |
QFN |
50000 |
全新原装正品现货,支持订货 |
询价 | ||
Renesas Electronics America In |
21+ |
28-WFQFN 裸露焊盘 |
6500 |
正规渠道/品质保证/原装正品现货 |
询价 | ||
RENESAS/瑞萨 |
23+ |
28-WFQFN |
90000 |
只做原厂渠道价格优势可提供技术支持 |
询价 | ||
Intersil(英特矽尔) |
23+ |
NA |
20094 |
正纳10年以上分销经验原装进口正品做服务做口碑有支持 |
询价 |