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Part Name(s) : FAN6982 FAN6982MY
Fairchild
Fairchild Semiconductor
Description : CCM Power Factor Correction Controller

Description
The FAN6982 is a 14-pin, Continuous Conduction Mode (CCM) PFC Controller IC intended for Power Factor Correction (PFC) pre-regulators. The FAN6982 includes circuits for the implementation of leading edge, average current, “boost”-type Power Factor Correction, and results in a Power supply that fully complies with the IEC1000-3-2 specification.

Features
Continuous Conduction Mode
Innovative Switching-Charge Multiplier-Divider
Average-Current-Mode for Input-Current Shaping
TriFault Detect™ Prevent Abnormal Operation for Feedback Loop
Power-On Sequence Control
Soft-Start Capability
Brownout Protection
Cycle-by-Cycle Peak Current Limiting.
Improves Light-Load Efficiency
Fulfills Class-D Requirements of IEC 1000-3-2
Programmable Frequency: 50kHz to 130kHz
Wide Range Universal AC Input Voltage
Maximum Duty Cycle 97%
VDDUnder-Voltage Lockout (UVLO)

Renesas
Renesas Electronics
Description : Power Factor Correction Controller IC

Description
The R2A20111 is a Power-Factor Correction (PFC) Controller IC. This IC adopts continuous conduction mode as PFC operation. Various functions such as constant Power limit, overvoltage detection, overcurrent detection, soft start, feedback-loop disconnection detection, and holding function of PFC operation through momentary outage (PFC hold function) are incorporated in a single chip. These functions reduce external circuitry.
The constant Power limit function allows to eliminate a significant amount of coil noise which is generated due to overcurrent detection operation in case of conventional overload. The PFC hold function enables quick recovery by continuing PFC operation after momentary outage. The hold time can be adjusted by an external capacitance. Overcurrent detection pin is separately provided. Latch mode shutdown function is incorporated. A soft-start control pin provides for the easy adjustment of soft-start operation, and can be used to prevent overshooting of the output voltage.

Features
• Maximum ratings
Power-supply voltage Vcc: 24 V
⎯ Operating junction temperature Tjopr: – 40 to 125°C
• Electrical characteristics
⎯ VREF output voltage VREF: 5.0 V ± 3%
⎯ UVLO operation start voltage VH: 10.5 ± 0.9 V
⎯ UVLO operation stop voltage VL: 9.0 ± 0.7 V
⎯ PFC output maximum ON duty Dmax-out: 95% (typ.)
• Functions
⎯ Constant Power limit function
⎯ Continuous conduction mode
⎯ Hold function of PFC operation on momentary outage (PFC hold function)
⎯ Overvoltage detection
⎯ Overcurrent detection
⎯ Soft start
⎯ Feedback loop disconnection detection
⎯ IC shutdown function
⎯ Package lineup: SOP-16 and DILP-16

Applications
• Flat panel display
• Projector
• Desktop PC
• White goods

Siemens
Siemens AG
Description : Power Factor Controller IC for High Power Factor and Active Harmonic Filtering

Power Factor Controller IC for High Power Factor and Active Harmonic Filtering

Features
● IC for sinusoidal line-current consumption
Power Factor approaching 1
● Controls boost converter as an active harmonics filter
● Direct drive of SIPMOS transistor
● Zero crossing detector for discontinuous operation mode
   with variable frequency
● 110/220 V AC operation without switchover
● Standby current consumption of 0.5 mA

Part Name(s) : BD7690FJ BD7690FJ-E2
ROHM
ROHM Semiconductor
Description : Power Factor Correction Controller IC

General Description
BD7690FJ is Power Factor Correction for AC/DC supplies the system which is suitable for all the products needing Power Factor improvement. The PFC adopts boundary conduction mode (BCM), and switching loss reduction and noise reduction are possible by Zero Current Detection (ZCD). ZCD is detected by auxiliary winding.

Features
■ Boundary Conduction Mode
■ Low Power consumption
■ VCCUVLO
■ The ZCD detection by auxiliary winding
■ Switching loss reduction, noise reduction by ZCD
■ Improving the efficiency by the max frequency control
■ Dynamic and Static OVP by the VS pin
■ High accuracy over current detection(±4%)
■ Error amplifier input short protection
■ Restart timer
■ Stable MOSFET gate drive by the Clamper

Applications
■ AC adopter, TV, Lighting equipment, Refrigerator, etc.

Part Name(s) : BD7692FJ BD7692FJ-E2
ROHM
ROHM Semiconductor
Description : Power Factor Correction Controller IC

General Description
BD7692FJ is Power Factor Correction for AC/DC supplies the system which is suitable for all the products needing Power Factor improvement. The PFC adopts boundary conduction mode (BCM), and switching loss reduction and noise reduction are possible by Zero Current Detection (ZCD). ZCD detects by resistance, the auxiliary winding is unnecessary.

Features
■ Boundary Conduction Mode
■ Low Power Consumption
■ VCCUVLO
■ Resister Detection for ZCD
■ Switching Loss Reduction, Noise Reduction by ZCD
■ Dynamic and Static OVP by the VS Pin
■ High Accuracy Over Current Detection (±4 %)
■ Error Amplifier Input Short Protection
■ Stable MOSFET Gate Drive by the Clamper
■ Protection Function by the OVP Pin
■ Over Voltage Reduce by Soft Start
■ Safe Design by the IS-GND Short Timer Operation

Applications
■ AC Adopter, TV, Lighting Equipment, Refrigerator, etc.

Fairchild
Fairchild Semiconductor
Description : Power Factor Correction and PWM Controller Combo

GENERAL DESCRIPTION
The ML4804 is a Controller for Power Factor corrected, switched mode Power supplies. Power Factor Correction (PFC) allows the use of smaller, lower cost bulk capacitors, reduces Power line loading and stress on the switching FETs, and results in a Power supply that fully complies with IEC1000-3-2 specification. Intended as a BiCMOS enhancement of the industry-standard ML4824, the ML4804 includes circuits for the implementation of leading edge, average current, “boost” type Power Factor Correction and a trailing edge, pulse width modulator (PWM). It also includes a TriFault Detect™ function to help ensure that no unsafe conditions will result from single component failure in the PFC. 1A gate-drive outputs minimize the need for external driver circuits. Low Power requirements improve efficiency and reduce component costs.

FEATURES
■ Internally synchronized leading-edge modulated PFC and trailing-edge modulated PWM in one IC
■ TriFault DetectTM for UL1950 compliance and enhanced safety
■ VCCOVP provides additonal PFC fault protection
■ Slew rate enhanced transconductance error amplifier for ultra-fast PFC response
■ Low Power: 200µA startup current, 5.5mA operating current
■ Low total harmonic distortion, high PF
■ Reduces ripple current in the storage capacitor between the PFC and PWM sections
■ Average current, continuous boost leading edge PFC
■ PWM configurable for current-mode or voltage mode operation
■ Overvoltage and brown-out protection, UVLO, and soft start

 

Part Name(s) : SSC2000 SSC2001S
SANKEN
Sanken Electric co.,ltd.
Description : Power Factor Correction (PFC) Controller IC of Continuous Conduction Mode (CCM) type, for High Power-High Efficiency Applications

General Descriptions
The SSC2000 series products are Power Factor Correction (PFC) Controller ICs of Continuous Conduction Mode (CCM). The product achieves high Power CCM systems, with few external components and no multiplier by the average current control method.

Features
● Continuous Conduction Mode (CCM)
    The mode enables the low peak current recommended for high Power supplies.
● Average Current Control Method
    The method requires no input line voltage sensing and no multiplier, and achieves simple systems with few external components.
● Pulse Width Modulation (PWM) + Frequency Modulation Function
    The function superposes the modulated frequency according to Duty value, on the internally fixed PWM frequency of 65 kHz(TYP).
● Maximum Duty Cycle : 94% (TYP)
● Built-in High Speed Response for Dynamic Load Changes
● Error Amplifier Reference Voltage : 3.5V (TYP)
● Brown-In / Brown-Out Function
    The function enables the oscillation start/stop by externally rated input voltage and makes protections at low input voltage.
● Various Protections
    Overvoltage Protection (OVP) -------------------------------- Auto-Restart
    VCC Undervoltage Lockout (UVLO) -------------------------- Auto-Restart
    Overcurrent Protection (OCP) -------------------------------- Auto-Restart
        Two Overcurrent Detection Thresholds : Input Current Limitation (OCPL)
                                                                         Peak Current Limitation (OCPH)
    Output Open Loop Detection (OLD)-------------------------- Auto-Restart

Applications
Power Factor Correction Circuits for Middle to High Output Power Applications
    AC/DC Power Supplies,
    Digital Consumer Equipments; Large Screen LCD-TVs, PDP-TVs, etc.,
    OA Equipments; Computers, Severs, Monitors, etc.,
    Communication Devices, Others

Part Name(s) : SA7527 SA7527S
Silan
Silan Microelectronics
Description : Power Factor Correction Controller OF CRITICAL DUCTING

Power Factor Correction Controller OF CRITICAL DUCTING

DESCRIPTION
The  SA7527  provides  simple  and  high  performance active  Power Factor  Correction. The  SA7527 is  optimized for  electronic  ballasts  and low  Power  and  high-density  Power  supplies  which  require minimum board  size,  reduced external  components  and  low Power  dissipation.
Because  the R/C  filter  is  included  in  the  current  sense  block,  the external  R/C  filter  is  not  necessary.  Special  circuitry  has  also  been added to prevent no load runaway conditions. Regardless of the supply voltage,  the  output  drive  clamping  circuit  limits the  overshoot  of  the Power MOSFET gate drive. It greatly enhances the system reliability.

FEATURES
* Internal start-up timer
* Internal R/C filter eliminates the need for an external R/C filter
* Very precise adjustable output over voltage protection
* Zero current detector
* One quadrant multiplier
* 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
* 8-pin DIP or 8-pin SOP

APPLICATIONS
* Electronic ballast
* SMPS

Micro-Linear
Micro Linear Corporation
Description : Power Factor Correction and PWM Controller Combo

GENERAL DESCRIPTION
The ML4804 is a Controller for Power Factor corrected, switched mode Power supplies. Power Factor Correction (PFC) allows the use of smaller, lower cost bulk capacitors, reduces Power line loading and stress on the switching FETs, and results in a Power supply that fully complies with IEC1000-3-2 specification. Intended as a BiCMOS enhancement of the industry-standard ML4824, the ML4804 includes circuits for the implementation of leading edge, average current, “boost” type Power Factor Correction and a trailing edge, pulse width modulator (PWM). It also includes a TriFault Detect™ function to help ensure that no unsafe conditions will result from single component failure in the PFC. 1A gate-drive outputs minimize the need for external driver circuits. Low Power requirements improve efficiency and reduce component costs.

FEATURES
■ Internally synchronized leading-edge modulated PFC and trailing-edge modulated PWM in one IC
■ TriFault DetectTM for UL1950 compliance and enhanced safety
■ VCCOVP provides additonal PFC fault protection
■ Slew rate enhanced transconductance error amplifier for ultra-fast PFC response
■ Low Power: 200µA startup current, 5.5mA operating current
■ Low total harmonic distortion, high PF
■ Reduces ripple current in the storage capacitor between the PFC and PWM sections
■ Average current, continuous boost leading edge PFC
■ PWM configurable for current-mode or voltage mode operation
■ Overvoltage and brown-out protection, UVLO, and soft start

 

Micro-Linear
Micro Linear Corporation
Description : Power Factor Correction and PWM Controller Combo

General Description
The ML4800 is a Controller for Power Factor corrected, switched mode Power supplies. Power Factor Correction (PFC) allows the use of smaller, lower cost bulk capacitors, reduces Power line loading and stress on the switching FETs, and results in a Power supply that fully complies with IEC1000-3-2 specification. Intended as a BiCMOS version of the industry-standard ML4824, the ML4800 includes circuits for the implementation of leading edge, average current, “boost” type Power Factor Correction and a trailing edge, pulse width modulator (PWM). It also includes a TriFault Detect™ function to help ensure that no unsafe conditions will result from single component failure in the PFC. Gate-drivers with 1A capabilities minimize the need for external driver circuits. Low Power requirements improve efficiency and reduce component costs.

Features
• Internally synchronized leading-edge PFC and trailing
   edge PWM in one IC
• TriFault Detect™ for UL1950 compliance and
   enhanced safety
• Slew rate enhanced transconductance error amplifier
   for ultra-fast PFC response
• Low Power: 200µA startup current, 5.5mA operating
   current
• Low total harmonic distortion, high PF
• Reduced ripple current in storage capacitor between
   PFC and PWM sections
• Average current, continuous boost leading edge PFC
• PWM configurable for current-mode or voltage mode
   operation
• Current fed gain modulator for improved noise immunity
• Overvoltage and brown-out protection, UVLO, and soft
   start

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