- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385477 > LM2722M (NATIONAL SEMICONDUCTOR CORP) High Speed Synchronous/Asynchronous MOSFET Driver PDF資料下載
參數(shù)資料
| 型號： | LM2722M |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 功率晶體管 |
| 英文描述： | High Speed Synchronous/Asynchronous MOSFET Driver |
| 中文描述： | 3.2 A HALF BRDG BASED MOSFET DRIVER, PDSO8 |
| 封裝： | PLASTIC, SO-8 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 162K |
| 代理商： | LM2722M |
LM2722
High Speed Synchronous/Asynchronous MOSFET Driver
General Description
The LM2722, part of the LM2726 family, is designed to be
used with multi-phase controllers. This part differs from the
LM2726 by changing the functionality of the SYNC_EN pin
from a whole chip enable to a low side MOSFET enable. As
a result, the SYNC_EN pin now provides control between
Synchronous and Asynchronous operations. Having this
control can be advantageous in portable systems since
Asynchronous operations can be more efficient at very light
loads.
The LM2722 drives both top and bottom MOSFETs in a
push-pull structure simultaneously. It takes a logic level
PWM input and splits it into two complimentary signals with
a
typical
20ns
dead
time
in
between.
The
built-in
cross-conduction protection circuitry prevents the top and
bottom
FETs
from
turning
on
simultaneously.
The
cross-conduction protection circuitry detects both the driver
outputs and will not turn on a driver until the other driver
output is low. With a bias voltage of 5V, the peak sourcing
and sinking current for each driver of the LM2722 is typically
3A. In an SO-8 package, each driver is able to handle 50mA
average current. Input UVLO (Under-Voltage-Lock-Out)
forces both driver outputs low to ensure proper power-up
and power-down operation. The gate drive bias voltage
needed by the high side MOSFET is obtained through an
external bootstrap. Minimum pulse width is as low as 55ns.
Features
n
Synchronous or Asynchronous Operation
n
Adaptive shoot-through protection
n
Input Under-Voltage-Lock-Out
n
Typical 20ns internal delay
n
Plastic 8-pin SO package
Applications
n
Driver for LM2723 Intel Mobile Northwood CPU core
power supply.
n
High Current DC/DC Power Supplies
n
High Input Voltage Switching Regulators
n
Fast Transient Microprocessors
Typical Application
20028901
Note: National is an Intel Mobile Voltage Positioning (IMVP) licensee.
December 2001
L
2001 National Semiconductor Corporation
DS200289
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM27241 | Synchronous Buck Regulator Controller for Mobile Systems |
| LM27241MTC | Synchronous Buck Regulator Controller for Mobile Systems |
| LM27241MTCX | Synchronous Buck Regulator Controller for Mobile Systems |
| LM2746 | Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller |
| LM2746MXA | Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2722M/NOPB | 功能描述:IC MOSFET DRIVER HI SPD 8-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅(qū)動器 - 外部開關(guān) 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 配置:高端 輸入類型:非反相 延遲時間:200ns 電流 - 峰:250mA 配置數(shù):1 輸出數(shù):1 高端電壓 - 最大（自引導(dǎo)啟動）:600V 電源電壓:12 V ~ 20 V 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-DIP 包裝:管件 其它名稱:*IR2127 |
| LM2722MX | 功能描述:功率驅(qū)動器IC 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 |
| LM2722MX/NOPB | 功能描述:功率驅(qū)動器IC 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 |
| LM2723MTDX/NOPB | 制造商:Texas Instruments 功能描述: |
| LM2724 WAF | 制造商:Texas Instruments 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。