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ML4824IS-1 Datasheet (PDF) - Fairchild Semiconductor

ML4824IS-1 Datasheet PDF - Fairchild Semiconductor
Part # ML4824IS-1
Download  ML4824IS-1 Download

File Size   150.37 Kbytes
Page   16 Pages
Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor
Description Power Factor Correction and PWM Controller Combo

ML4824IS-1 Datasheet (PDF)

Go To PDF Page Download Datasheet
ML4824IS-1 Datasheet PDF - Fairchild Semiconductor

Part # ML4824IS-1
Download  ML4824IS-1 Click to download

File Size   150.37 Kbytes
Page   16 Pages
Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor
Description Power Factor Correction and PWM Controller Combo

ML4824IS-1 Datasheet (HTML) - Fairchild Semiconductor

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ML4824IS-1 Product details

GENERAL DESCRIPTION
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 brownout 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.

FEATURES
■ Internally synchronized PFC and PWM in one IC
■ Low total harmonic distortion
■ Reduces ripple current in the storage capacitor between
   the PFC and PWM sections
■ Average current, continuous boost leading edge PFC
■ Fast transconductance error amp for voltage loop
■ High efficiency trailing edge PWM can be configured
   for current mode or voltage mode operation
■ Average line voltage compensation with brownout
   control
■ PFC overvoltage comparator eliminates output
   “runaway” due to load removal
■ Current fed gain modulator for improved noise immunity
■ Overvoltage protection, UVLO, and soft start




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About Fairchild Semiconductor


Fairchild Semiconductor was a pioneering semiconductor company that was founded in the late 1950s.
The company was known for its innovation in the development of the first commercial transistor and for its contributions to the advancement of the integrated circuit technology.
Fairchild became a leading supplier of power semiconductors, analog and mixed-signal integrated circuits, and other semiconductor products.
The company was acquired by ON Semiconductor in 2016 and its products and technologies continue to be developed and sold under the ON Semiconductor brand.

*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.




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