DESCRIPTION
The TK75005 is an 8-pin PWM controller suitable for both voltage-mode and current-mode control. It also has advanced features not available in controllers with a higher pin count. One such feature is a sawtooth current flowing out of the feedback pin (FB), which provides a slope compensation ramp (in current mode applications) in proportion to the resistance terminating that FB pin.

FEATURES
■ Can Be Used For Power Factor Correction/Line Harmonics Reduction to Meet IEC1000-3-2 Requirements
■ Maximum Duty Ratio 89% (typ.)
■ Low Standby Current for Current-Fed Start-Up
■ Current-Mode or Voltage-Mode Control
■ Internal User-Adjustable Slope Compensation
■ Pulse-by-Pulse Current Limiting

APPLICATIONS
■ Power Factor Correction Converters
■ Off-Line Power Supplies
■ Industrial Power Supplies
■ Off-Line Battery Charger