AP1661 Datasheet | BCD

Data Sheet POWER FACTOR CORRECTION CONTROLLER General Description Features 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 600m A source current and 800m A sink current. Designed with advanced Bi CMOS 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. - 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 4m A Typical Value - 1% Precision Internal Reference Voltage - Internal Start-up Timer - Disable Function for Reduced Current Consumption - Totem Pole Output with 600m A Source Current and 800m A Sink Current Capability - Under-Voltage Lockout with 2.5V of Hysteresis Applications - AC-DC Adapter - Off-line SMPS - Electronic Ballast SOIC-8 DIP-8 Aug. 2008 Rev. 1. 1 Figure 1. Package Types of AP1661 BCD Semiconductor Manufacturing Limited POWER FACTOR CORRECTION CONTROLLER Pin Configuration M Package/P Package (SOIC-8/DIP-8) INV P...