FDMF6704A_09 FAIRCHILD [Fairchild Semiconductor], FDMF6704A_09 Datasheet

FDMF6704A_09

Manufacturer Part Number

FDMF6704A_09

Description

The Xtra Small, High Performance, High Frequency DrMOS Module

Manufacturer

FAIRCHILD [Fairchild Semiconductor]

Datasheet

1.FDMF6704A_09.pdf (14 pages)

Current page: 1 of 14
Download datasheet (722Kb)

FDMF6704A Rev. F

Power Train Application Circuit

Ordering Information

FDMF6704A - XS

The Xtra Small, High Performance, High Frequency DrMOS Module

Benefits

Features

Order Number

Ultra compact size - 6 mm x 6 mm MLP, 44 % space

saving compared to conventional MLP 8 mm x 8 mm

DrMOS packages.

Fully optimized system efficiency.

Clean voltage waveforms with reduced ringing.

High frequency operation.

Ultra- compact thermally enhanced 6 mm x 6 mm MLP

package 84 % smaller than conventional discrete solutions.

Synchronous driver plus FET multichip module.

High current handling of 35 A.

Over 93 % peak efficiency.

Logic level PWM input.

Fairchild's PowerTrench

voltage waveforms and reduced ringing.

Optimized for high switching frequencies of up to 1 MHz.

Skip mode SMOD [low side gate turn off] input.

Fairchild SyncFET

in the low side MOSFET.

Integrated bootstrap Schottky diode.

Adaptive gate drive timing for shoot-through protection.

Driver output disable function [DISB# pin].

Undervoltage lockout (UVLO).

Fairchild Green Packaging and RoHS

compliant. Low profile SMD package.

FDMF6704A

PWM Input

OFF

DISB#

FDMF6704A_1

5 V

[integrated Schottky diode] technology

VDRV

Marking

5 technology MOSFETs for clean

DISB#

PWM

SMOD#

Figure 1. Power Train Application Circuit

Temperature Range

VDRV

-55 °C to 150 °C

DrMOS

CGND

VCIN

PGND

PHASE

VIN

VSWH

BOOT

40 Pin, 3 DAP, MLP 6x6 mm

General Description

The XS

optimized, ultra-compact, integrated MOSFET plus driver power

stage solutions for high current, high frequency synchronous

buck DC-DC applications. The FDMF6704A XS

integrates a driver IC, two power MOSFETs and a bootstrap

Schottky diode into a thermally enhanced, ultra compact 6 mm x

6 mm MLP package. With an integrated approach, the complete

switching power stage is optimized with regards to driver and

MOSFET dynamic performance, system inductance and

challenges associated with conventional discrete solutions.

PowerTrench

reduces ringing in synchronous buck converter applications.

PowerTrench

buck converter applications. The driver IC incorporates

advanced features such as SMOD for improved light load

efficiency. A 5 V gate drive and an improved PCB interface

optimized for a maximum low side FET exposed pad area,

ensure higher performance. This product is compatible with

the new Intel 6 mm x 6 mm DrMOS specification.

Applications

DS(ON)

Device Package

BOOT

Compact blade servers V-core, non V-core and VTT DC-DC

converters.

Desktop computers V-core, non V-core and VTT DC-DC

converters.

Workstations V-core, non V-core and VTT DC-DC

converters.

Gaming Motherboards V-core, non V-core and VTT DC-DC

converters.

Gaming consoles.

High-current DC-DC Point of Load (POL) converters.

Networking and telecom microprocessor voltage regulators.

Small form factor voltage regulator modules.

. This greatly reduces the package parasitics and layout

DrMOS

BOOT

DrMOS family is Fairchild’s next-generation fully-

VIN

5 can eliminate the need for a snubber circuit in

5 MOSFET technology, which dramatically

OUT

12 V

uses

Packing Method

Fairchild's

Tape and Reel

OUT

OUTPUT

high

August 2009

www.fairchildsemi.com

performance

Quantity

3000

DrMOS

Related parts for FDMF6704A_09

FDMF6704A_09 Summary of contents

Page 1

FDMF6704A - XS The Xtra Small, High Performance, High Frequency DrMOS Module Benefits Ultra compact size - MLP space saving compared to conventional MLP DrMOS packages. Fully optimized ...

Page 2

Functional Block Diagram DISB# PWM SMOD# Pin Configuration PWM 40 CGND V DISB CGND VSWH 35 VSWH 34 VSWH VSWH 33 43 VSWH 32 VSWH 31 Bottom View FDMF6704A Rev. F VCIN VDRV ...

Page 3

Pin Description Pin Name 1 SMOD# 2 VCIN 3 VDRV 4 BOOT 5, 37, 41 CGND PHASE 9-14, 42 VIN 15, 29-35, 43 VSWH, PHASE 16-28 PGND DISB# 40 PWM Absolute ...

Electrical Characteristics °C unless otherwise noted Parameter Operating Quiescent Current VCIN UVLO UVLO Threshold UVLO COMP Hysteresis PWM, DISB# and SMOD# Input High Level Input Voltage Low Level Input Voltage Input ...

Page 5

Description of Operation Circuit Description The FDMF6704A is a driver plus FET module optimized for synchronous buck converter topology. A single PWM input signal is all that is required to properly drive the high-side and the low-side MOSFETs. Each part ...

Page 6

Timing Diagrams PWM VSWH VSWH Switch Node Ringing Suppression Fairchild's DrMOS products have proprietary feature* that minimizes the peak overshoot and ringing voltage on the switch node (VSWH) output, without the need of external snubbers. The following ...

Page 7

Typical Characteristics V = 12V 5V 25°C unless otherwise noted. IN CIN 1.3 V OUT MHz SW L ...

Page 8

Typical Characteristics V = 12V 5V 25°C unless otherwise noted. IN CIN A 1.045 1.040 1.035 1.030 1.025 1.020 1.015 1.010 1.3 V 1.005 OUT ...

Page 9

Typical Characteristics V = 12V 5V 25°C unless otherwise noted. IN CIN A 2.2 2 1.8 1.6 1.4 1.2 1.0 4.5 4.8 5.0 5.3 Driver Supply Voltage, V Figure 19. SMOD# Threshold Voltage vs. ...

Page 10

Application Information Supply Capacitor Selection For the supply input (VCIN) of the FDMF6704A, a local ceramic bypass capacitor is recommended to reduce the noise and to supply the peak current. Use at least X7R or X5R capacitor. ...

Page 11

Power Loss and Efficiency Measurement and Calculation Refer to Figure 24 for power loss testing method. Power loss calculation are as follows ...

Page 12

TOP VIEW FDMF6704A Rev. F Figure 25. Typical PCB Layout Example 12 BOTTOM VIEW www.fairchildsemi.com ...

Page 13

Dimensional Outline and Pad layout FDMF6704A Rev www.fairchildsemi.com ...

Page 14

TRADEMARKS The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidianries, and is not intended exhaustive list of all such trademarks. Auto-SPM™ F-PFS™ Build it Now™ FRFET CorePLUS™ Global ...

Related keywords

FDMF6704A_09 datasheet
FDMF6704A_09 data sheet
FDMF6704A_09 pdf datasheet
FDMF6704A_09 component
FDMF6704A_09 part
FDMF6704A_09 distributor
FDMF6704A_09 RoHS
FDMF6704A_09 datasheet download