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SC3806 - PFC and PWM Combo Controller

Download the SC3806 datasheet PDF. This datasheet also covers the SC3806-Safety variant, as both devices belong to the same pfc and pwm combo controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The SC3806 is a controller for power factor correction, switched mode power supplies.

Internally synchronized leading-edge PFC and trailing-edge PWM in one IC.

Its input current shaping is close to the leading edge modulation average current topology.

Key Features

  • Internally synchronized PFC and PWM.
  • Slew rate enhanced voltage error amplifier with advanced input current shaping technique.
  • Average current, continuous boost leading edge PFC.
  • PFC using Input Current Shaping Technique.
  • High PF with low total harmonic distortion.
  • Reduced ripple current in bulk capacitor between PFC and PWM sections.
  • Current-fed gain modulator for improved noise immunity.
  • Overvoltage and brown-out protection, UVLO, and soft start.
  • S.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (SC3806-Safety-Chip.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number SC3806
Manufacturer Safety-Chip
File Size 757.93 KB
Description PFC and PWM Combo Controller
Datasheet download datasheet SC3806 Datasheet

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SC3654 Boost Power Factor Correction Controller

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Description The SC3806 is a controller for power factor correction, switched mode power supplies. Internally synchronized leading-edge PFC and trailing-edge PWM in one IC. Its input current shaping is close to the leading edge modulation average current topology. SC3806 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 fully compliant to IEC1000-3-2 specifications. 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.