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MC34262 Power Factor Controller IC DIP-8 Package

96.00 + GST

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The MC34262 is active power factor controller specifically designed for use as a preconverter in electronic ballast and in off−line power converter applications. These integrated circuits feature an internal startup timer for stand−alone applications, a one quadrant multiplier for near unity power factor, zero current detector to ensure critical conduction operation, transconductance error amplifier, quickstart circuit for enhanced startup, trimmed internal bandgap reference, current sensing comparator, and a totem pole output ideally suited for driving a power MOSFET. Also included are protective features consisting of an overvoltage comparator to eliminate runaway output voltage due to load removal, input undervoltage lockout with hysteresis, cycle−by−cycle current limiting, multiplier output clamp that limits maximum peak switch current, an RS latch for single pulse metering, and a drive output high state clamp for MOSFET gate protection. The device is available in dual−in−line plastic package.


  • Overvoltage Comparator Eliminates Runaway Output Voltage
  • Internal Startup Timer
  • One Quadrant Multiplier
  • Zero Current Detector
  • Trimmed 2% Internal Bandgap Reference
  • Totem Pole Output with High State Clamp
  • Under voltage Lockout with 6.0 V of Hysteresis
  • Low Startup and Operating Current
  • Supersedes Functionality of SG3561 and TDA4817
  • These are Pb−Free and Halide−Free Devices


Rating Symbol Value Unit
Total Power Supply and Zener Current (ICC + IZ) 30 mA
Output Current, Source or Sink (Note 1) IO 500 mA
High State Forward Current Iin 50 mA
Low State Reverse Current Iin -10 mA
Maximum Power Dissipation @ TA = 70°C PD 800 mW
Operating Junction Temperature Tj 150 °C
Operating Ambient Temperature Ta 0 to +85 °C
Storage Temperature Range Tstg −65 to +150 °C
Human Body Model (HBM), Machine Model (MM), Charged Device Model (CDM) ESD 2000, 200, 2000 V


* product image for illustration purposes only. actual product may vary.


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