FSCQ0765RT

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7A/650V QRC Power Switch

General Description

A Quasi-Resonant Converter (QRC) typically shows lower EMI and higher power conversion efficiency compared to 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, and is specifically designed for quasiresonant 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 a 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 simultaneously increasing efficiency, productivity, and system reliability. These devices provide a basic platform that is well suited for cost-effective designs of quasi-resonant switching flyback converters.

Product Status/Pricing/Packing

Product Product Status Eco Status *Pricing Package Type Leads Packing Method Package Drawing **Package Marking Convention RoHS IPC1752 RoHS/REACH/JIG Certificate of Compliance
FSCQ0765RTYDTU Full Production Green as of Oct 2010 $1.43 TO-220F 5 RAIL PDF Line 1:$Y (Fairchild logo)
&Z (Asm. Plant Code)
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Line 2:CQ0765RT
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Features

  • Optimized for Quasi-Resonant Converter (QRC)
  • Advanced Burst-Mode operation for under 1 W standby power consumption
  • Pulse by Pulse Current Limit
  • Over load protection (OLP) - Auto restart
  • Over voltage protection (OVP) - Auto restart
  • Abnormal Over Current Protection (AOCP) - Latch
  • Internal Thermal Shutdown (TSD) - Latch
  • Under Voltage Lock Out (UVLO) with hysteresis
  • Low Startup Current (typical: 25uA)
  • Internal High Voltage SenseFET
  • Built-in Soft Start (20ms)
  • Extended Quasi-resonant Switching for Wide Load Range

Applications

  • TBA

Application Notes

Multilanguage - Chinese Multilanguage - English Multilanguage - Japanese Multilanguage - Korean