FDMF6730 Fairchild Semiconductor, FDMF6730 Datasheet

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FDMF6730

Manufacturer Part Number
FDMF6730
Description
IC DRIVER FET MULTICHIP 40-MLP
Manufacturer
Fairchild Semiconductor
Datasheet

Specifications of FDMF6730

Applications
Power Supplies
Current - Supply
2mA
Voltage - Supply
6 V ~ 16 V
Operating Temperature
-55°C ~ 150°C
Mounting Type
Surface Mount
Package / Case
40-MLP, Power66
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
FDMF6730TR
©2008 Fairchild Semiconductor Corporation
FDMF6730 Rev. D2
Ordering Information
FDMF6730
Driver plus FET Multi-chip Module
Features
Applications
Typical Application
Over 95% efficiency
Internal 5V regulator for gate drive
6V-16V input range
1MHz max operating frequency
SMOD operation capability for light load efficiency
5A current capability (10A with PASS FET)
Current limit set by R
Integrated bootstrap diode
Ultra Mobile PC
Notebook Computers
FDMF6730
Part
DSON
LDO OUT
LDO OUT
LDO ENABLE
LDO ENABLE
LDO 5V OUT
LDO 5V OUT
sensing to minimize power losses
Current Rating
PW M OUT
PW M OUT
Max
[A]
10
Figure 1. Power Train Application Circuit
LDO 5V
LDO 5V
LDO EN
LDO EN
LDO OUT
LDO OUT
LDO ADJ
LDO ADJ
DRIVE HS
DRIVE HS
DRIVE LS
DRIVE LS
CGND
CGND
VCC
VCC
Input Voltage
CS_O UT
CS_O UT
FDMF6730
FDMF6730
Typical
6-16
1
[V]
CS_PROG
CS_PROG
General Description
The FDMF6730 is a high efficiency Driver plus MOSFET power
stage solution optimized for Ultra Mobile PC (UMPC) system
power voltage supplies. It is fully compliant with the Intel Ultra-
Mobile Driver MOS (uDrMOS) Specification. The MOSFETs and
driver have been optimized to perform with high efficiency at
light and medium loads, ideal for compact PC devices.
The internal driver IC integrates two highly efficient LDOs for
internal gate-drive and external circuitry. The bootstrap diode is
also integrated within the IC. When operating with a single low
side MOSFET the uDrMOS module is capable of delivering up
to 5A of continuous current. The PASS transistor may be easily
routed in parallel with the low side MOSFET to provide up to
10A. The module also incorporates an over current protection
flag from an R
The device comes in a 6X6 Power QFN package for improved
thermal performance.
G_PASS
G_PASS
D_PASS
D_PASS
VIN
VIN
VSW H
VSW H
S_PASS
S_PASS
BOOT
BOOT
PGND
PGND
LDRV
LDRV
DSON
Frequency
[KHz]
1000
Max
current sense architecture.
VIN
VIN
VOUT
VOUT
FDMF6730
Marking
Device
August 2008
www.fairchildsemi.com

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FDMF6730 Summary of contents

Page 1

... Fairchild Semiconductor Corporation FDMF6730 Rev. D2 General Description The FDMF6730 is a high efficiency Driver plus MOSFET power stage solution optimized for Ultra Mobile PC (UMPC) system power voltage supplies fully compliant with the Intel Ultra- Mobile Driver MOS (uDrMOS) Specification. The MOSFETs and driver have been optimized to perform with high efficiency at light and medium loads, ideal for compact PC devices ...

Page 2

... D RIVE_LS Pin Configuration PGND PGND PGND PGND PGND PGND LDRV LDRV VSWH VSWH D_PASS D_PASS G_PASS G_PASS S_PASS S_PASS S_PASS S_PASS S_PASS 31 S_PASS 31 FDMF6730 Rev Reg 5V Reg Adjust Adjust urren t C urren t T rim m ing T rim m ing _OUT CS _OUT C S_P S_P RO G Figure 2 ...

Page 3

... Operating and Storage Junction Temperature Range Note 1: Package power dissipation based on 4 layer, 2 square inch, 2 oz. copper pad. R thermal resistance with PCB temperature referenced at VSWH pin. FDMF6730 Rev. D2 Function Low Side FET Source Pin. Connect to GND Switch Node Pin. Low Side FET Drain pin. Electrically shorted to PHASE pin Input Voltage Pin ...

Page 4

... Load Regulation Short Circuit Current Limit Adjustable LDO Adjust Voltage Line Regulation Load Regulation Short Circuit Current Limit Adjust Input Bias Current Over Current Protection CS_Prog Current Thermal Shutdown Threshold Hysteresis Propagation Delay 250ns Timeout FDMF6730 Rev. D2 Min. 4.5 6 1.5 . Symbol Conditions < V < ...

Page 5

... Another feature of the part is the adjustable 100mA LDO. The LDO output voltage is easily configured with a resistor divider. Current Limit The part also has current limit flag which is set by an internal OCP topology. FDMF6730 Rev. D2 Applications Section Input Capacitor A High frequency 4.7ceramic X5R must be connected directly from V ...

Page 6

... 10A 1.15 LOAD L = 2.2uH F = 1MHz 1.10 SW 1.05 1.00 0.95 0.90 0.85 0.80 1.5 2 2.5 3 Output Voltage, V Figure 8. Power Loss vs. Output Voltage FDMF6730 Rev OUT 3 2.2uH 2.5 2.0 1.5 1.0 0.5 0.0 100 125 150 1.08 1.06 1.04 1.02 1.00 ...

Page 7

... Temperature, Figure 12. Supply Current vs. Temperature 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 -50 -10 30 Temperature, Figure 14. Driver_LS Threshold Voltage vs. Temperature FDMF6730 Rev. D2 3.00 2.75 2.50 2.25 2.00 1.75 1.50 1.25 1.00 5.5 6 300 Figure 11. Supply Current vs. Frequency 1.40 1.38 1.35 1 ...

Page 8

... Typical Characteristics 41.0 40.5 40.0 39.5 39.0 38.5 38.0 37.5 -50 -10 30 Temperature, Figure 16. CS_Prog Current vs. Temperature FDMF6730 Rev 110 150 www.fairchildsemi.com ...

Page 9

... PIN #1 IDENT (0.20) 31 0.50 (2.20) 4.40? .10 BOTTOM VIEW A. DOES NOT FULLY CONFORM TO JEDEC REGISTRATION, MO-220. DATED MAY/2005. B. DIMENSIONS ARE IN MILLIMETERS. C. DIMENSIONS AND TOLERANCES PER ASME Y14.5M, 1994 D. DRAWING FILE NAME: MLP40XREV1 FDMF6730 Rev 6.00 0. (0.20) C SEATING PLANE 0.50 2.00? .10 (2X) 40X 0. ...

Page 10

... Definition of Terms Datasheet Identification Product Status Advance Information Formative / In Design Preliminary First Production No Identification Needed Full Production Obsolete Not In Production FDMF6730 Rev. D2 FPS™ PDP SPM™ F-PFS™ Power-SPM™ ® FRFET PowerTrench SM Global Power Resource Programmable Active Droop™ ...

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