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參數(shù)資料
| 型號： | SI4728CY |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | N-Channel Synchronous MOSFETs with Break-Before-Make |
| 中文描述： | N溝道MOSFET的同步與折價(jià)執(zhí)行前 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 74K |
| 代理商： | SI4728CY |
Si4728CY
Vishay Siliconix
Document Number: 71286
S-03075—Rev. C, 03-Feb-03
www.vishay.com
1
N-Channel Synchronous MOSFETs with Break-Before-Make
FEATURES
4.5- to 30-V Operation
Driver Impedance—3
Undervoltage Lockout
Fast Switching Times (30 ns typ.)
30-V MOSFETs
High Side: 0.018 @ V
DD
= 4.5 V
Low Side: 0.0105 @ V
DD
= 4.5 V
Switching Frequency: 250 kHz to 1 MHz
DESCRIPTION
The Si4728CY n-channel synchronous MOSFET with
break-before-make (BBM) is a high speed driver designed to
operate in high frequency dc-dc switchmode power supplies.
It’s purpose is to simplify the use of n-channel MOSFETs in
high frequency buck regulators. This device is design to be
used with any single output PWM IC or ASIC to produce a
highly efficient low cost synchronous rectifier converter. A
synchronous enable pin (disable = low, enable = high)
controls the synchronous function for light load conditions.
The Si4728CY is packaged in Vishay Siliconix’s high
performance LITTLE FOOT SO-16 package.
FUNCTIONAL BLOCK DIAGRAM
MOSFET
Drive Circuitry
with
Break-Before-
Make
Si4728
C
BOOT
C
BOOT
D
1
S
1
D
2
S
2
V
DD
SYNC EN
IN
GND
+
V
OUT
GND
DC-DC
Controller
4.5 V to 30 V
5 V
GND
Q
1
Q
2
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| SI4728CY-E3 | 功能描述:功率驅(qū)動器IC Sync N-Ch 30V RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| SI4728CY-T1-E3 | 功能描述:功率驅(qū)動器IC Sync N-Ch 30V RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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| Si4730-A10-GM | 功能描述:射頻接收器 Broadcast AM/FM Radio Receiver RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
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