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Offline Regulators | FSCQ0765RT

650V Integrated Power Switch for 85Watt offline flyback converters

Obsolete

Datasheet

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Overview

A Quasi-Resonant Converter (QRC) typically shows lower EMI and higher power conversion efficiency compared to a conventional hard-switched converter with a fixed switching frequency. Therefore, a QRC is well suited for noise-sensitive applications, such as color TV and audio. Each product in the FSCQ series contains an integrated Pulse Width Modulation (PWM) controller and a SenseFET. This series is specifically designed for quasi-resonant off-line Switch Mode Power Supplies (SMPS) with minimal external components. The PWM controller includes an integrated fixed frequency oscillator, under-voltage lockout, leading-edge blanking (LEB), optimized gate driver, internal soft-start, temperature-compensated precise current sources for loop compensation, and self-protection circuitry. Compared with a discrete MOSFET and PWM controller solution, the FSCQ series can reduce total cost, component count, size, and weight; while increasing efficiency, productivity, and system reliability. These devices provide a basic platform for cost-effective designs of quasi-resonant switching flyback converters.

  • CRT TV

  • Optimized for Quasi-Resonant Converter (QRC)
  • Advanced Burst-Mode Operation for under 1 W Standby Power Consumption
  • Pulse-by-Pulse Current Limit
  • Overload Protection (OLP) – Auto Restart
  • Over-Voltage Protection (OVP) – Auto Restart
  • Abnormal Over-Current Protection (AOCP) – Latch
  • Internal Thermal Shutdown (TSD) – Latch
  • Under-Voltage Lockout (UVLO) with Hysteresis
  • Low Startup Current (Typical: 25 μA)
  • Internal High Voltage SenseFET
  • Built-in Soft-Start (20 ms)
  • Extended Quasi-Resonant Switching

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FSCQ0765RTYDTU

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Obsolete

CAD Model

Pb

A

H

P

TO-220-5 FullPak

340BH

NA

0

TUBE

400

N

Current Mode

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-

-

1.4

650

5000

Yes

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Yes

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Reliability Data

Die Related Summary Data

Device: FSCQ0765RTYDTU

Equivalent to wafer fab process: 64,CE

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

64,CE

0

51896141

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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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