AP1661A Datasheet | BCD

Preliminary Datasheet HIGH PERFORMANCE POWER FACTOR CORRECTOR General Description Features The AP1661A 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 AP1661A 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 AP1661A Features low start-up current, low operation current and low power dissipation. The AP1661A also has rich protection Features including over-voltage protection, input under-voltage lockout with hysteresis and multiplier output clamp to limit maximum peak current. The AP1661A meets IEC61000-3-2 standard even at one-quadrant load and its THD is lower than 10% at high-end line voltage and full load. - ply with IEC61000-3-2 Standard - Proprietary Design for Minimum THD - Zero Current Detection Control for DCM Bound- ary Conduction Mode - Adjustable Output Voltage with Precise Over- Voltage Protection - Ultra-low Startup Current: 30µA Typical - Low Quiescent Current: 2.5m A Typical - Precision Internal Reference Voltage: 1% - Internal Startup 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 This IC is available in SOIC-8 and DIP-8 packages. Jul. 2009 Rev. 1. 0 SOIC-8 DIP-8 Figure 1. Package Types of AP1661A BCD Semiconductor Manufacturing...