AP1661A FACTOR CORRECTOR Datasheet

AP1661A Datasheet, PDF, Equivalent


Part Number

AP1661A

Description

HIGH PERFORMANCE POWER FACTOR CORRECTOR

Manufacture

BCD

Total Page 11 Pages
Datasheet
Download AP1661A Datasheet


AP1661A
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
1

AP1661A
HIGH PERFORMANCE POWER FACTOR CORRECTOR
Pin Configuration
Preliminary Datasheet
AP1661A
M Package
(SOIC-8)
INV
COMP
MULT
CS
1
2
3
4
8 VCC
7 GD
6 GND
5 ZCD
P Package
(DIP-8)
INV 1
COMP 2
MULT 3
CS 4
8 VCC
7 GD
6 GND
5 ZCD
Figure 2. Pin Configuration of AP1661A (Top View)
Pin Description
Pin Number
1
2
3
4
5
6
7
8
Pin Name
INV
COMP
MULT
CS
ZCD
GND
GD
VCC
Function
Inverting input of the error amplifier
Output of the error amplifier
Input of the multiplier
Input of the current control loop comparator
Zero current detection input. If it is connected to GND, the device is
disabled
Ground. Current return for gate driver and control circuits of the IC
Gate driver output
Supply voltage of gate driver and control circuits of the IC
Jul. 2009 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
2


Features Preliminary Datasheet HIGH PERFORMANCE POWER FACTOR CORRECTOR General Descrip tion Features AP1661A The AP1661A is an active power factor control IC whic h is designed mainly for use as pre-con verter in electronic ballast, AC-DC ada pters and off-line SMPS applications. T he AP1661A includes an internal start-u p timer for stand-alone applications, a one-quadrant multiplier to realize nea r unity power factor and a zero current detector to ensure DCM boundary conduc tion operation. The totem pole output s tage is capable of driving power MOSFET with 600mA source current and 800mA si nk current. Designed with advanced BiCM OS process, the AP1661A features low st art-up current, low operation current a nd low power dissipation. The AP1661A a lso has rich protection features includ ing over-voltage protection, input unde r-voltage lockout with hysteresis and m ultiplier output clamp to limit maximum peak current. The AP1661A meets IEC610 00-3-2 standard even at one-quadrant load and its THD is lower .
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