MC33262 DC-DC 8-PIN Power Factor Controller IC

MC33262 DC-DC 8-PIN Power Factor Controller IC

The MC33262  are  active  power  factor  controller  specifically designed for use as a pre converter 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,  quick start  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  over voltage comparator to eliminate runaway output voltage due to load removal, input under voltage   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.

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• High Efficiency: Optimized for switching performance with minimal power loss.

• Wide Operating Voltage Range: Capable of handling high input voltages, making it suitable for off-line power supplies.

• High-Voltage Startup Circuit: Built-in startup circuit for fast and reliable operation, reducing the need for external components.

• PWM Control: Precision pulse width modulation for stable and regulated output voltage.

• Adjustable Oscillator Frequency: Allows flexibility in design by setting the switching frequency as needed.

• Low Standby Power: Minimizes power consumption during idle operation, meeting modern energy standards.

Specifications of MC33262 DC-DC 8-PIN Power Factor Controller IC

• Input Voltage Range: Designed to operate with a high-voltage range suitable for off-line applications (specific input range depends on the circuit design).

• Operating Frequency: Typically 20kHz to 100kHz, adjustable by external components.

• Output Power: Capable of supporting moderate to high power applications (depends on design parameters and power requirements).

• Efficiency: Up to 85% (depending on load and external components).

• Standby Power: Less than 0.5W at no load.

Package Includes

• 1 x MC33262 DC-DC 8-PIN Power Factor Controller IC