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參數(shù)資料
| 型號(hào)： | Si9150 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | Synchronous Buck Converter Controller(帶過流保護(hù)的同步步降穩(wěn)壓控制器) |
| 中文描述： | 同步降壓轉(zhuǎn)換控制器（帶過流保護(hù)的同步步降穩(wěn)壓控制器） |
| 文件頁數(shù)： | 1/5頁 |
| 文件大小： | 148K |
| 代理商： | SI9150 |
Si9150
Vishay Siliconix
Si9150
FaxBack 408-970-5600, request 70020
www.siliconix.com
S-60752—Rev. E, 5-Apr-99
1
Synchronous Buck Converter Controller
FEATURES
6- to 16.5-V Input Range (Si9150CY)
Voltage-Mode PWM Control
Low-Current Standby Mode
DESCRIPTION
The Si9150 synchronous buck regulator controller is ideally
suited for high-efficiency step down converters in battery-
powered equipment. Combined with the Si9943DY MOSFET
half-bridge, a 90% efficient, 7.5-W, 3.3-V or 5-V power supply
can be implemented using standard surface- mount assembly
techniques. The wide input range allows operation from NiCd
or NiMH battery packs using six to ten cells.
Over-current protection is achieved by sensing the on-state
voltage drop across the high side p-channel MOSFET, which
eliminates the need for a current sense resistor.
Duty ratios of 0 to 100% and switching frequencies up to 300
kHz are possible. The IC can be disabled by pulling EN low
(I
DD
= 100 μA), or the 2.5-V reference can be maintained, with
all other functions disabled, by pulling STBY low (I
DD
=
500 μA).
The Si9150 is available in a 14-pin SOIC and rated for the
commercial temperature range of 0 to 70°C (C suffix), and the
industrial temperature range of -40 to +85°C (D suffix).
FUNCTIONAL BLOCK DIAGRAM
Enable Control
Dual 100-mA Output Drivers
2% Band Gap Reference
Multiple Converters Easily
Synchronized
Over-Current Protection
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SI9150CY | 功能描述:DC/DC 開關(guān)控制器 Sync Buck Controller 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 |
| SI9150CY-E3 | 功能描述:DC/DC 開關(guān)控制器 Sync Buck Converter Controller 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 |
| SI9150CY-T1 | 功能描述:DC/DC 開關(guān)控制器 Sync Buck Converter Controller 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 |
| SI9150CY-T1-E3 | 功能描述:DC/DC 開關(guān)控制器 Sync Buck Converter Controller 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 |
| SI9150DY | 功能描述:DC/DC 開關(guān)控制器 Sync Buck Controller 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 |
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