[On-Bright Electronics]
DESCRIPTIONS
OB6563 is an active transition-mode (TM) power factor correction (PFC) controller for AC-DC switching mode power supply applications.
OB6563 features an internal start-up timer for stand-alone applications, a one quadrant multiplier with THD optimizer for near unity power factor, zero current detector (ZCD) to ensure TM operation, a current sensing comparator with built-in leading-edge blanking, and a totem pole output ideally suited for driving a power MOSFET.
FEATURES
⢠Transition Mode (TM) Operation
⢠One quadrant multiplier with THD optimizer
⢠Low Dynamic OVP Sensing Current Setting
⢠Low Start-up Current and Operating Current
⢠Cycle-by-Cycle Current Limiting
⢠Internal RC Filter
⢠Trimmed 1.5% Internal Bandgap Reference
⢠Under Voltage Lockout with Hysteresis
⢠Dynamic and Static Output Over-Voltage Protection (OVP)
⢠Internal Start-up Timer for Stand-alone Applications
⢠Disable Function
⢠Totem Pole Output with High State Clamping
⢠System Open Loop Protection
⢠Proprietary Audio Noise Free Operation
⢠9.5V to 28V wide range of VCC voltage
APPLICATIONS
⢠Electronic Ballast
⢠AC-DC SMPS
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