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Fairchild Semiconductor Electronic Components Datasheet

FDMF6824C Datasheet

High-Frequency DrMOS

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May 2013
FDMF6824C Extra-Small, High-Performance,
High-Frequency DrMOS Module
Benefits
Ultra-Compact 6x6 mm PQFN, 72% Space-Saving
Compared to Conventional Discrete Solutions
Fully Optimized System Efficiency
Clean Switching Waveforms with Minimal Ringing
High-Current Handling
Features
Over 93% Peak-Efficiency
High-Current Handling: 50 A
High-Performance PQFN Copper-Clip Package
3-State 5 V PWM Input Driver
Skip-Mode SMOD# (Low-Side Gate Turn Off) Input
Thermal Warning Flag for Over-Temperature
Condition
Driver Output Disable Function (DISB# Pin)
Internal Pull-Up and Pull-Down for SMOD# and
DISB# Inputs, Respectively
Fairchild PowerTrench® Technology MOSFETs for
Clean Voltage Waveforms and Reduced Ringing
Fairchild SyncFET(Integrated Schottky Diode)
Technology in Low-Side MOSFET
Integrated Bootstrap Schottky Diode
Adaptive Gate Drive Timing for Shoot-Through
Protection
Under-Voltage Lockout (UVLO)
Optimized for Switching Frequencies up to 1 MHz
Low-Profile SMD Package
Fairchild Green Packaging and RoHS Compliance
Based on the Intel® 4.0 DrMOS Standard
Description
The XS™ DrMOS family is Fairchild’s next-generation,
fully optimized, ultra-compact, integrated MOSFET plus
driver power stage solution for high-current, high-
frequency, synchronous buck DC-DC applications. The
FDMF6824C integrates a driver IC, two power
MOSFETs, and a bootstrap Schottky diode into a
thermally enhanced, ultra-compact 6x6 mm package.
With an integrated approach, the complete switching
power stage is optimized with regard to driver and
MOSFET dynamic performance, system inductance,
and power MOSFET RDS(ON). XSDrMOS uses
Fairchild's high-performance PowerTrench® MOSFET
technology, which dramatically reduces switch ringing,
eliminating the need for snubber circuit in most buck
converter applications.
A driver IC with reduced dead times and propagation
delays further enhances the performance. A thermal
warning function warns of a potential over-temperature
situation. The FDMF6824C also incorporates a Skip
Mode (SMOD#) for improved light-load efficiency. The
FDMF6824C also provides a 3-state 5 V PWM input for
compatibility with a wide range of PWM controllers.
Applications
High-Performance Gaming Motherboards
Compact Blade Servers, V-Core and Non-V-Core
DC-DC Converters
Desktop Computers, V-Core and Non-V-Core
DC-DC Converters
Workstations
High-Current DC-DC Point-of-Load Converters
Networking and Telecom Microprocessor Voltage
Regulators
Small Form-Factor Voltage Regulator Modules
Ordering Information
Part Number Current Rating
Package
Top Mark
FDMF6824C
50 A
40-Lead, Clipbond PQFN DrMOS, 6.0 mm x 6.0 mm Package FDMF6824C
© 2013 Fairchild Semiconductor Corporation
FDMF6824C • Rev. 1.0.1
www.fairchildsemi.com
Free Datasheet http://www.datasheet4u.com/


Fairchild Semiconductor Electronic Components Datasheet

FDMF6824C Datasheet

High-Frequency DrMOS

No Preview Available !

Typical Application Circuit
V5V
C VDRV
RVCIN
CVCIN
CVIN
VIN
3V ~ 16V
DISB#
PWM
Input
OFF
ON
Open-
Drain
Output
VDRV VCIN
VIN
DISB#
RBOOT
BOOT
PWM
SMOD#
FDMF6824C
PHASE
CBOOT
THWN#
CGND
VSWH
PGND
LOUT
COUT
VOUT
Figure 1. Typical Application Circuit
DrMOS Block Diagram
VCIN
UVLO
VDRV
BOOT
DBoot
VIN
Q1
HS Power
MOSFET
DISB#
10µA
VCIN
RUP_PWM
PWM
RDN_PWM
Input
3-State
Logic
THWN#
Temp.
Sense
GH
Logic
Level-Shift
Dead-Time
Control
VCIN
GL
Logic
10µA
GH
30k
PHASE
VDRV
VSWH
GL
30k
Q2
LS Power
MOSFET
CGND
© 2013 Fairchild Semiconductor Corporation
FDMF6824C • Rev. 1.0.1
SMOD#
Figure 2.
DrMOS Block Diagram
PGND
www.fairchildsemi.com
Free Datasheet http://www.datasheet4u.com/


Part Number FDMF6824C
Description High-Frequency DrMOS
Maker Fairchild Semiconductor
PDF Download

FDMF6824C Datasheet PDF






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