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Offline Regulators | FSFM300

650V Integrated Power Switch with Abnormal OCP for 30Watt offline flyback converters

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Overview

The FSFM260N/261N/300N is an integrated Pulse Width Modulator (PWM) and SenseFET 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 that combines an avalanche-rugged SenseFET with a current-mode PWM control block. The PWM controller includes an integrated fixed-frequency oscillator, under-voltage lockout (UVLO), 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 solutions, it can reduce total cost, component count, size, and weight while simultaneously increasing efficiency, productivity, and system reliability. This device is a basic platform for cost-effective designs of flyback converters.

  • LCD TV

  • Internal Avalanche-Rugged SenseFET
  • Advanced Burst-Mode Operation Consumes Under 1W at 240VAC and 0.5W Load
  • Precision Fixed Operating Frequency: 67kHz
  • Internal Startup Circuit
  • Over-Voltage Protection (OVP)
  • Overload Protection (OLP)
  • Internal Thermal Shutdown Function (TSD)
  • Abnormal Over-Current Protection (AOCP)
  • Auto-Restart Mode
  • Under-Voltage Lockout (UVLO) with Hysteresis
  • Low Operating Current: 2.5mA
  • Built-in Soft-Start: 15ms

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FSFM300N

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Pb

A

H

P

PDIP-8

646CM

NA

0

TUBE

3000

N

-

67

-

-

-

650

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Reliability Data

Die Related Summary Data

Device: FSFM300N

Equivalent to wafer fab process: 3C,64

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

3C,64

0

66693770

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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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