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Offline Regulators | FSFR2100

600V Integrated Power Switch (FPS鈩�) for 450W Half-Bridge Resonant Converter

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Overview

The FSFR2100 is a highly integrated power switch designed for high-efficiency half-bridge resonant converters. Offering everything necessary to build a reliable and robust resonant converter, the FSFR2100 simplifies designs and improves productivity, while improving performance. The FSFR2100 combines power MOSFETs with fast-recovery type body diodes, a highside gate-drive circuit, an accurate current controlled oscillator, frequency limit circuit, soft-start, and built-in protection functions. The high-side gate-drive circuit has a common-mode noise cancellation capability, which guarantees stable operation with excellent noise immunity. The fast-recovery body diode of the MOSFETs improves reliability against abnormal operation conditions, while minimizing the effect of the reverse recovery. Using the zero-voltage-switching (ZVS) technique dramatically reduces the switching losses and efficiency is significantly improved. The ZVS also reduces the switching noise noticeably, which allows a small-sized Electromagnetic Interference (EMI) filter.
The FSFR2100 can be applied to various resonant converter topologies, such as: series resonant, parallel resonant, and LLC resonant converters.

  • PDP TV
  • LCD TV
  • Desktop PC
  • Server
  • Video Game Console
  • Home Audio System Components
  • Variable Frequency Control with 50% Duty Cycle for Half-Bridge Resonant Converter Topology
  • High Efficiency through Zero Voltage Switching (ZVS)
  • Internal SuperFET庐s with Fast-Recovery Type Body Diode (trr=120ns)
  • Fixed Dead Time (350ns) Optimized for MOSFETs
  • Up to 300kHz Operating Frequency
  • Pulse Skipping for Frequency Limit (Programmable) at Light-Load Condition
  • Remote On/Off Control Using Control Pin
  • Protection Functions: Over-Voltage Protection (OVP), Over-Load Protection (OLP), Over-Current Protection (OCP), Abnormal Over-Current Protection (AOCP), Internal Thermal Shutdown (TSD)

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FSFR2100

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Pb

A

H

P

SIP-9

127EM

NA

0

TUBE

475

N

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Resonant

Variable

Yes

0.32

600

7000

No

0.05

11.3

Yes

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No

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