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SC3202A

High-Efficiency CrM Boost PFC Controller

SC3202ASC3202A

SC3202A

High-Efficiency CrM Boost PFC Controller

The SC3202A is a Power Factor Correction (PFC) controller which is applied to boost converter. It features High performance by using multi-mode control strategy. At heavy load or full load, it operates in Critical conduction Mode (CrM). When load decreases, it operates in Discontinuous Conduction Mode (DCM) with valley switching and lower frequency for high efficiency. And at no load, the IC will operate in Burst Mode to reduce power consumption and minimize audio noise. Using SC3202 together with the flyback controller and secondary synchronous rectifier controller, high efficiency over full load can be achieved, and extremely low standby power consumption of system can easily meet the efficiency regulations. Benefit from the SC3202, the PFC stage will obtain nearly unity power factor and sinusoidal line input current with few external components. SC3202 offers comprehensive protections to prevent the circuit from damage under abnormal conditions. SOT23-6/SOP8 package is provided to simplified user’s design and reduced system cost.
SC3202A
The SC3202A is a Power Factor Correction (PFC) controller which is applied to boost converter. It features High performance by using multi-mode control strategy. At heavy load or full load, it operates in Critical conduction Mode (CrM). When load decreases, it operates in Discontinuous Conduction Mode (DCM) with valley switching and lower frequency for high efficiency. And at no load, the IC will operate in Burst Mode to reduce power consumption and minimize audio noise. Using SC3202 together with the flyback controller and secondary synchronous rectifier controller, high efficiency over full load can be achieved, and extremely low standby power consumption of system can easily meet the efficiency regulations. Benefit from the SC3202, the PFC stage will obtain nearly unity power factor and sinusoidal line input current with few external components. SC3202 offers comprehensive protections to prevent the circuit from damage under abnormal conditions. SOT23-6/SOP8 package is provided to simplified user’s design and reduced system cost.
Product Details
Design / Development
Technical Documentation
Applications

Product Details

Technical Documentation

Parameter NameParameter Value
Control ModeCRM/DCM
Max. Fsw320kHz
Int. GaNN
Max. Ton12.8us
Max. VDD30V
Soft StartY
Current LimitY
Parameter NameParameter Value
Output OVPN
Brown In/Out/
Valley SwitchingY
Boost FollowY
Enable FunctionN
Recommended ApplicationZCD detect with auxiliary winding
PackageSOT23-6
Parameter NameParameter Value
Control ModeCRM/DCM
Max. Fsw320kHz
Int. GaNN
Max. Ton12.8us
Max. VDD30V
Soft StartY
Current LimitY
Output OVPN
Brown In/Out/
Valley SwitchingY
Boost FollowY
Enable FunctionN
Recommended ApplicationZCD detect with auxiliary winding
PackageSOT23-6