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650V Integrated Power Switch for 60Watt offline flyback converters

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Overview

The FSDM0565RB is an integrated Pulse Width Modulator (PWM) and Sense FET specifically designed for high performance offline Switch Mode Power Supplies (SMPS) with minimal external components. This device is an integrated high voltage power switching regulator which combines an avalanche rugged Sense FET with a current mode PWM control block. The PWM controller includes integrated fixed frequency oscillator, under voltage lockout, leading edge blanking (LEB), optimized gate driver, internal soft start, temperature compensated precise current sources for a loop compensation and self protection circuitry. Compared with discrete MOSFET and PWM controller solution, it can reduce total cost, component count, size and weight simultaneously increasing efficiency, productivity, and system reliability. This devise is a basic platform well suited for cost effective designs of flyback converters.

  • Internal Avalanche Rugged Sense FET
  • Advanced Burst-Mode operation consumes under 1 Watt at 240VAC&0.5W load
  • Precision Fixed Operating Frequency (66kHz)
  • Internal Start-up Circuit
  • Improved Pulse by Pulse Current Limiting
  • Over Voltage Protection (OVP)
  • Over Load Protection (OLP)
  • Internal Thermal Shutdown Function (TSD)
  • Auto-Restart Mode
  • Under Voltage Lock Out (UVLO) with hysteresis
  • Low Operating Current (2.5mA)
  • Built-in Soft Start <B>Application</B>
  • SMPS for LCD monitor and STB
  • Adaptor

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fJitter Typ (%)

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Reference Price

FSDM0565RBWDTU

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Pb

A

H

P

TO-220-6

NA

0

TUBE

400

N

-

-

-

-

1.76

650

2250

Yes

-

No

Yes

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-

-

Price N/A

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