Power Factor Correction (PFC) And PWM Controller Combo

The ML4824 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 IEC1000-2-3 specification. The ML4824 includes circuits for the implementation of a leading edge, average current, "boost" type power factor correction and a trailing edge, pulse width Modulator (PWM). The device is available in two versions; the ML4824-1 (fPWM = fPFC) and the ML4824-2 (fPWM = 2 x fPFC). Doubling the switching frequency of the PWM allows the user to design with smaller output components while maintaining the best operating frequency for the PFC. An over-voltage Comparator shuts down the PFC section in the event of a sudden decrease in load. The PFC section also includes peak current limiting and input voltage brown-out protection. The PWM section CAN be operated in current or voltage mode at up to 250kHz and includes a duty cycle limit to prevent transformer saturation.
By Fairchild Semiconductor
Part Manufacturer Description Datasheet Samples
LM140K-15/NOPB Texas Instruments 2-TO-3
LM140K-5.0/NOPB Texas Instruments 2-TO-3
STELLARIS-3P-CODER-DPROBE430-DEVBD Texas Instruments Red Suite 2
LM140K-12/NOPB Texas Instruments 2-TO-3
LM140K-15 Texas Instruments 2-TO-3
SN28835FS Texas Instruments SN28835 1/2-Inch NTSC Timer
LM21212-2EVM Texas Instruments Evaluation Board for the LM21212-2
TPS2421-2EVM-03 Texas Instruments TPS2421-2 Hot Swap Controller Evaluation Module
TRF6901RD Texas Instruments TRF6901 RF 2-Layer Baord
HW-RDK-BDC Texas Instruments RDK BDC Rev 2 Hardware Package
ML4824-2 's PackagesML4824-2 's pdf datasheet
ML4824CP2 DIP
ML4824CS2 SOIC
ML4824CS2X SOIC




ML4824-2 Pinout, Pinouts
ML4824-2 pinout,Pin out
This is one package pinout of ML4824-2,If you need more pinouts please download ML4824-2's pdf datasheet.

ML4824-2 Application circuits
ML4824-2 circuits
This is one application circuit of ML4824-2,If you need more circuits,please download ML4824-2's pdf datasheet.


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ML4824-2 Application Notes ML4824-2 RoHS ML4824-2 Circuits ML4824-2 footprint