Offline Regulators | FSQ0365RN

650V Integrated Power Switch with Valley Switching control for 19Watt offline flyback converters

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Overview

A Valley Switching Converter generally shows lower EMI and higher power conversion efficiency than a conventional hard-switched converter with a fixed switching frequency. The FSQ-series is an integrated Pulse-Width Modulation (PWM) controller and SenseFET specifically designed for valley switching operation 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 discrete MOSFET and PWM controller solutions, the FSQ-series reduces total cost, component count, size and weight; while simultaneously increasing efficiency, productivity, and system reliability. This device provides a basic platform that is well suited for cost-effective designs of valley switching fly-back converters.

  • DVD/Set Top Boxes

  • Optimized for Valley Switching (VSC)
  • Low EMI through Variable Frequency Control andInherent Frequency Modulation
  • High Efficiency through Minimum Voltage Switching
  • Narrow frequency Variation Range over Wide Load andInput Voltage Variation
  • Advanced Burst-Mode Operation for Low StandbyPower Consumption
  • Pulse-by-Pulse Current Limit
  • Various Protection functions: Over Load Protection(OLP), Over Voltage Protection (OVP), AbnormalOver Current Protection (AOCP), Internal ThermalShutdown (TSD)
  • Under Voltage Lock Out (UVLO) with Hysteresis
  • Internal Start-up Circuit
  • Internal High-Voltage Sense FET (650V)
  • Built-in Soft-Start (15ms)

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fsw Typ (kHz)

fJitter Typ (%)

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Reference Price

FSQ0365RLX

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Last Shipments

CAD Model

Pb

A

H

P

PDIP-8 GW

3

250

REEL

1000

N

Current Mode

Variable

-

-

3.5

650

1500

Yes

-

Yes

Yes

-

-

No

Price N/A

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FSQ0365RN

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Last Shipments

CAD Model

Pb

A

H

P

PDIP-8

626-05

NA

0

TUBE

3000

N

Current Mode

Variable

-

-

3.5

650

1500

Yes

-

Yes

Yes

-

-

No

Price N/A

More Details

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Reliability Data

Die Related Summary Data

Device: FSQ0365RN

Equivalent to wafer fab process: 3D,64

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

3D,64

0

63841486

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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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