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參數(shù)資料
| 型號(hào)： | Si9161 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | Optimized-Efficiency Controller for RF Power Amplifier Boost Converter(用于RF功率放大升壓轉(zhuǎn)換器應(yīng)用的脈寬調(diào)制控制器) |
| 中文描述： | 優(yōu)化效率控制器，用于RF功率放大器升壓轉(zhuǎn)換器（用于射頻功率放大升壓轉(zhuǎn)換器應(yīng)用的脈寬調(diào)制控制器） |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 500K |
| 代理商： | SI9161 |
Si9161
Vishay Siliconix
Si9161
FaxBack 408-970-5600, request 70747
www.siliconix.com
S-60752—Rev. B, 05-Apr-99
1
Optimized-Efficiency Controller for RF Power
Amplifier Boost Converter
FEATURES
Si9160 architecture optimized for “
light-load
” efficiency
High Frequency Switching (up to 2 MHz)
Optimized Output Drive Current (300 mA)
DESCRIPTION
The Si9161 Optimized-Efficiency Controller for RF Power
Amplifier Boost Converter is a fixed-frequency, pulse- width-
modulated power conversion controller designed for use with
the Si6801 application specific MOSFET. The Si9161 and the
Si6801 are optimized for high efficiency switched-mode power
conversion at 1 MHz and over. The device has an enable pin
which can be used to put the converter in a low-current mode
compatible with the standby mode of most cellular phones. It
has a light-load pin which enables circuitry optimizing
efficiency at loads typical of receive operation. A wide
bandwidth feedback amplifier minimizes transient response
time allowing the device to meet the instantaneous current
demands of today’s digital protocols. The input voltage range
accommodates minimal size and cost battery pack
configurations.
Frequency control in switching is important to noise
management techniques in RF communications. The Si9161
is easily synchronized for high efficiency power conversion at
frequencies in excess of 1 MHz.
Optimizing the controller and the synchronous FETs results in
the highest conversion efficiency over a wide load range at the
switching frequencies of interest (1 MHz or greater). It also
minimizes the overshoot and gate ringing associated with
drive current and gate charge mismatches.
When disabled, the converter requires less than 330 μA. This
capability minimizes the impact of the converter on battery life
when the phone is in the standby mode.
Finally, operating voltage is optimized for LiIon battery
operation (2.7 V to 4.5 V) and can also be used with three-cell
NiCd or NiMH (3 V to 3.6 V), as well as four-cell NiCd or NiMH
(4 V to 4.8 V) battery packs.
APPLICATION CIRCUIT
Standby Mode
Wide Bandwidth Feedback Amplifier
Single-Cell LiIon and Three-cell NiCd or NiMH Operation
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SI9161BQ-T1 | 功能描述:DC/DC 開關(guān)控制器 Opt-Efficiency Cont RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| SI9161BQ-T1-E3 | 功能描述:DC/DC 開關(guān)控制器 Opt-Efficiency Cont For RF Power Amp RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| SI9161DB | 功能描述:電源管理IC開發(fā)工具 SI9161 Demo Board RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| SI9165 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:High Frequency 600-mA Synchronous Buck/Boost Converter |
| SI9165_07 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:High Frequency 600-mA Synchronous Buck/Boost Converter |
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