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PDF FDMF6824A Data sheet ( Hoja de datos )
| Número de pieza | FDMF6824A | |
| Descripción | High-Frequency DrMOS Module | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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May 2013
FDMF6824A — Extra-Small, High-Performance,
High-Frequency DrMOS Module
Benefits
Ultra-Compact 6x6mm 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: 60 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
FDMF6824A 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). XS™ DrMOS 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 FDMF6824A also incorporates a Skip
Mode (SMOD#) for improved light-load efficiency. The
FDMF6824A 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
FDMF6824A
60 A
40-Lead, Clipbond PQFN DrMOS, 6.0 mm x 6.0 mm Package FDMF6824A
© 2013 Fairchild Semiconductor Corporation
FDMF6824A • Rev. 1.0.1
www.fairchildsemi.com
1 page  
Electrical Characteristics
Typical values are VIN = 12 V, VCIN = 5 V, VDRV = 5 V, and TA = TJ = +25°C unless otherwise noted.
Symbol
Parameter
Condition
Min. Typ. Max. Unit
Basic Operation
IQ Quiescent Current
VUVLO UVLO Threshold
VUVLO_Hys UVLO Hysteresis
PWM Input (VCIN = VDRV = 5 V ±10%)
RUP_PWM Pull-Up Impedance
RDN_PWM Pull-Down Impedance
VIH_PWM PWM High Level Voltage
VTRI_HI 3-State Upper Threshold
VTRI_LO 3-State Lower Threshold
VIL_PWM PWM Low Level Voltage
tD_HOLD-OFF 3-State Shut-Off Time
VHiZ_PWM 3-State Open Voltage
PWM Input (VCIN = VDRV = 5 V ±5%)
RUP_PWM Pull-Up Impedance
RDN_PWM Pull-Down Impedance
VIH_PWM PWM High Level Voltage
VTRI_HI 3-State Upper Threshold
VTRI_LO 3-State Lower Threshold
VIL_PWM PWM Low Level Voltage
tD_HOLD-OFF 3-State Shut-Off Time
VHiZ_PWM 3-State Open Voltage
DISB# Input
IQ=IVCIN+IVDRV, PWM=LOW or HIGH or Float
2 mA
VCIN Rising
2.9 3.1 3.3 V
0.4 V
VPWM=5 V
VPWM=0 V
10
10
3.04 3.55 4.05
2.95 3.45 3.94
0.98 1.25 1.52
0.84 1.15 1.42
160 200
2.20 2.50 2.80
kΩ
kΩ
V
V
V
V
ns
V
VPWM=5 V
VPWM=0 V
10
10
3.22 3.55 3.87
3.13 3.45 3.77
1.04 1.25 1.46
0.90 1.15 1.36
160 200
2.30 2.50 2.70
kΩ
kΩ
V
V
V
V
ns
V
VIH_DISB High-Level Input Voltage
2V
VIL_DISB
IPLD
Low-Level Input Voltage
Pull-Down Current
tPD_DISBL Propagation Delay
PWM=GND, Delay Between DISB# from
HIGH to LOW to GL from HIGH to LOW
0.8 V
10 µA
25 ns
tPD_DISBH Propagation Delay
PWM=GND, Delay Between DISB# from
LOW to HIGH to GL from LOW to HIGH
25 ns
SMOD# Input
VIH_SMOD
VIL_SMOD
IPLU
High-Level Input Voltage
Low-Level Input Voltage
Pull-Up Current
tPD_SLGLL Propagation Delay
PWM=GND, Delay Between SMOD# from
HIGH to LOW to GL from HIGH to LOW
2V
0.8 V
10 µA
10 ns
tPD_SHGLH Propagation Delay
PWM=GND, Delay Between SMOD# from
LOW to HIGH to GL from LOW to HIGH
10
ns
Continued on the following page…
© 2013 Fairchild Semiconductor Corporation
FDMF6824A • Rev. 1.0.1
5
www.fairchildsemi.com
5 Page 
Typical Performance Characteristics
Test Conditions: VCIN=5 V, VDRV=5 V, TA=25°C, and natural convection cooling, unless otherwise specified.
12.0
11.5
VCIN = 5V
11.0
10.5
10.0
9.5
9.0
-55
0 25 55 100 125
Driver IC Junction Temperature, TJ (oC)
150
500
IF = 20mA
450
400
350
300
250
200
150
100
-55 0 25 55 100 125
Driver IC Junction Temperature, TJ (oC)
150
Figure 24. DISB# Pull-Down Current vs.
Temperature
Figure 25. Boot Diode Forward Voltage vs.
Temperature
© 2013 Fairchild Semiconductor Corporation
FDMF6824A • Rev. 1.0.1
11
www.fairchildsemi.com
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet FDMF6824A.PDF ] | |
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