AP1661A Datasheet, PDF (1/11 Pages) BCD Semiconductor Manufacturing Limited – HIGH PERFORMANCE POWER FACTOR CORRECTOR

Preliminary Datasheet
HIGH PERFORMANCE POWER FACTOR CORRECTOR
General Description
Features
AP1661A
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 opera-
tion. 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
AP1661A features low start-up current, low operation
current and low power dissipation. The AP1661A also
has rich protection features including over-voltage pro-
tection, 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.
· Comply 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: 2.5mA Typical
· Precision Internal Reference Voltage: 1%
· Internal Startup 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
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 Limited
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