Power Factor Controller  
Part No. Features VCC(Max) Feedback VREF(V) ISTART-UP BW(MHz) Package
UA7527 Power Factor Correction Controller

* Internal Start-up Timer
* Very Precise Adjustable Output Over Voltage Protection
* Zero Current Detector
* Quadrant Multiplier
* Internal R/C Filter Eliminates the Need for an External R/C Filter
* Trimmed 1.5% Internal Band Gap Reference
* Under Voltage Lockout with 3V of Hysteresis
* Totem Pole Output With High State Clamp
* Low Start-up and Operating Current
30.0V Typ=2.5V 10uA~100uA 1.0MHz SOP-8
UA7524 Power Factor Correction Controller

* Internal self-starting
* Micro power start up mode
* Included under voltage lockout circuit
* Internal 2% reference
* High output current: peak 500mA
20.0V Typ=2.5V Typ=0.25mA 1.0MHz DIP-8 SOP-8
L8561 Power Factor Correction Controller

* 1% Precision (@ TJ = 25) Internal Reference Voltage
* Output Overvoltage Protection
* Very Low Power Start-Up Current
* Current Sense Filter On Chip
* Disable Function (with ZCD pin)
* Transition Mode Operation
* Gate Driving Current: ± 400mA
* 15V Gate clamped
11.0V~18.0V Typ=2.5V Typ=30uA Typ=0.8MHz DIP-8 SOP-8
L8562 Power Factor Correction Controller

* 1% Precision (@ TJ = 25) Internal Reference Voltage
* Output Overvoltage Protection
* Very Low Power Start-Up Current
* Current Sense Filter On Chip
* Disable Function (with ZCD pin)
* Transition Mode Operation
* Gate Driving Current: ± 400mA
* 15V Gate clamped
11.0V~18.0V Typ=2.5V Typ=30uA Typ=0.8MHz DIP-8 SOP-8
L8532 Power Factor Correction Dimmable LED Driver

* Very Low 24μA Typical Startup Current
* Constant On Time PWM Control
* Cycle-by-Cycle Current Protection
* Low Current Sense Threshold of 500mV
* Low 2mA Typical Operating Current
* Source 500mA/Sink 800mA Totem Pole Gate Driver
* Reference Design for TRIAC and Trailing Edge Line Dimmers
* Wide Operating Temperature Range
* No Input Voltage Sensing Requirement
* Enable Function and Overvoltage Protection
20.0V Typ=2.5V Typ=24uA - SOP-8
L8565 Power Factor Correction (PFC) Controller in Continuous Conduction Mode (CCM)

* Supports wide input range
* Average current control
* Ease of use with few external components
* External current and voltage loop compensation
* Trimmed internal reference voltage (5V±2%)
* Programmable operating/switching frequency
* (50kHz ~ 250kHz)
* Max duty cycle of 95% (typ) at 125kHz
* Under voltage lockout
* Cycle by cycle peak current limiting
* Over-voltage protection
* Open loop detection
* Output under-voltage detection
* Brown-out protection
* Soft Over current Protection
* Enhanced dynamic response
21.0V Typ=5V 50uA~200uA - SOP-8
L8961* Boundary Mode Power Factor Correction Controller 24.5V Typ=2.5V Typ=20uA - DIP-8 SOP-8
L7842 Power Factor Correction and PWM Controller Combo

* Complying with IEC1000-2-3 (1995) standard
* Six protections: PFC overvoltage protection, peak current limiting,
bown-out protection, duty cycle limit, undervoltage lockout, and
soft start.
* Low quiescent current
* Average current, continuous boost leading edge PFC
* Fast transconductance error amp for voltage loop.
* Double (current & voltage) mode operation PWM
* Programmable soft start
* Improved anti-interference technique
* UVLO pull-down and brown-out control
VZ=13.5V Typ=2.5V Typ=0.7mA Typ=10MHz DIP-16
UC3854 ENHANCED HIGH POWER FACTOR PREREGULATOR

* Controls Boost Preregulator to Near Unity Power Factor
* Limits Line Distortion
* World-Wide Line Operation
* Accurate Power Limiting
* Fixed Frequency Average Current Mode Control
* High Bandwidth (5MHz), Low Offset Current Amplifier
* Integrated Current and Voltage Amp Output Clamps
* Multiplier Improvements: Linearity, 500mV VAC Offset (eliminates
external resistor), 0-5V Multout Common Mode Range
* VREF "GOOD" Comparator
* Faster and Improved Accuracy ENABLE Comparator
* 300uA Startup Supply Current
22V Typ=7.5V Max=18mA 5.0MHz SOP-16
MC34262 Power Factor Correction Controller

* Output over voltage protection
* Internal Startup Timer
* One Quadrant Multiplier
* Zero Current Detector
* Trimmed 2% Internal Bandgap Reference
* Totem Pole Output with High State Clamp
* Undervoltage Lockout (UVLO) with 5.0V of Hysteresis
* Low Startup and Operating Current
* Supersedes Functionality of SG3561, TDA4817 and UTC MC34262
VZ=36V Typ=1.08V Max=12mA - DIP-8 SOP-8
TDA16888* PWM+PFC Combo IC VZ=16.0V ~ 19.0V Typ=7.5V Max=100uA - DIP-20
*: Under  Development