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功率因数校正控制器 DIODES AP1661

The AP1661 is an active power factor control IC which is designed mainly for use as pre-converter in electronic ballast, AC-DC adapters and off-line SMPS applications.

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Description
The AP1661 is an active power factor control IC which is designed mainly for use as pre-converter in electronic ballast, AC-DC adapters and off-line SMPS applications.
The AP1661 includes an internal start-up timer for stand-alone applications, a one-quadrant multiplier to realize near unity power factor and a zero current detector to ensure DCM boundary conduction operation. The totem pole output stage is capable of driving power MOSFET with 600mA source current and 800mA sink
current.
Designed with advanced BiCMOS process, the AP1661 features low start-up current, low operation current and low power dissipation. The AP1661 also has rich protection features including over-voltage protection, input under-voltage lockout with hysteresis and multiplier output clamp to limit maximum peak current.
This IC is available in SOIC-8 and DIP-8 packages.

Features
 Zero Current Detection Control for DCM Boundary Conduction Mode
 Adjustable Output Voltage with Precise Over-Voltage Protection
 Low Start-up Current with 50μA Typical Value
 Low Operating Supply Current with 4mA Typical Value
 1% Precision Internal Reference Voltage
 Internal Start-up Timer
 Disable Function for Reduced Current Consumption
 Totem Pole Output with 600mA Source Current and 800mA Sink Current Capability
 Under-Voltage Lockout with 2.5V of Hysteresis
 For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative

Applications
 AC-DC Adapter
 Off-line SMPS
 Electronic Ballast