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參數(shù)資料
| 型號： | FAN5009MX |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | MOSFETs |
| 英文描述： | Dual Bootstrapped 12V MOSFET Driver |
| 中文描述： | HALF BRDG BASED MOSFET DRIVER, PDSO8 |
| 封裝： | 0.150 INCH, SOIC-8 |
| 文件頁數(shù)： | 1/13頁 |
| 文件大?。?/td> | 167K |
| 代理商： | FAN5009MX |
www.fairchildsemi.com
REV. 1.0.5 7/22/04
Features
Drives N-channel High-Side and Low-Side MOSFETs in
a synchronous buck configuration
12V High-Side and 12V Low-Side Drive
Internal Adaptive “Shoot-Through” Protection
Integrated Bootstrap Diode for High-Side Drive
Fast rise and fall times
Switching Frequency Up to 500kHz
OD input for Output Disable – allows for synchronization
with PWM controller
SOIC-8 Package
Available in low thermal resistance MLP package
Applications
Multi-phase VRM/VRD regulators for Microprocessor
Power
High Current/High Frequency DC/DC Converters
High Power Modular Supplies
General Description
The FAN5009 is a dual, high frequency MOSFET driver,
specifically designed to drive N-Channel power MOSFETs
in a synchronous-rectified buck converter. These drivers,
combined with a Fairchild Multi-Phase PWM controller and
power MOSFETs, form a complete core voltage regulator
solution for advanced microprocessors.
The FAN5009 drives the upper and lower MOSFET gates of
a synchronous buck regulator to 12V
drive includes an integrated boot diode and requires only an
external bootstrap capacitor (C
the FAN5009 have the capacity to efficiently switch power
MOSFETs at frequencies up to 500kHz. The circuit’s
adaptive shoot-through protection prevents the MOSFETs
from conducting simultaneously.
GS
. The upper gate
BOOT
). The output drivers in
The FAN5009 is rated for operation from 0°C to +85°C and
is available in low-cost SOIC-8 or MLP packages.
Typical Application
Figure 1. Typical Application.
SW
FAN5009
12V
VCC
OVERLAP
PROTECTION
CIRCUIT
6
5
7
8
1
PWM
2
C
BOOT
BOOT
VCC
4
Q1
Q2
C
VCC
C
OUT
L1
V
OUT
3
HDRV
LDRV
PGND
OD
FAN5009
Dual Bootstrapped 12V MOSFET Driver
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