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Integrated Driver & MOSFET | FDMF6821B

Extra-Small, High-Performance, High-Frequency DrMOS Module

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Overview

The XS™ DrMOS family is ON Semiconductor’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 FDMF6821B 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 ON Semiconductor'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 FDMF6821B also incorporates a Skip Mode (SMOD#) for improved light-load efficiency. The FDMF6821B also provides a 3-state 3.3 V PWM input for compatibility with a wide range of PWM controllers.

  • Core Power for Servers, Desktop Computers, Notebooks, Game Consoles, Networking, Storage, Telecom
  • High-Current dc-dc Converters
  • Multi-phase dc-dc Converters

  • Over 93% Peak-Efficiency
  • High-Current Handling: 55 A
  • High-Performance PQFN Copper-Clip Package
  • 3-State 3.3 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 SyncFETâ„¢ (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
  • Fairchild Green Packaging and RoHS Compliance
  • Low-Profile SMD Package
  • Based on the Intel® 4.0 DrMOS Standard

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FDMF6821B

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CAD Model

Pb

A

H

P

PQFN-40

483AN

1

260

REEL

3000

N

5

12

3.3 V Tri-State

55

1

Price N/A

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Reliability Data

Die Related Summary Data

Device: FDMF6821B

Equivalent to wafer fab process: GK,RN,U4

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

GK,RN,U4

0

108100566

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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