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FAN9611

Fairchild Semiconductor
Part Number FAN9611
Manufacturer Fairchild Semiconductor
Description Interleaved Dual BCM PFC Controllers
Published Dec 17, 2019
Detailed Description FAN9611 — Interleaved Dual BCM PFC Controllers February 2013 FAN9611 Interleaved Dual BCM PFC Controllers Features  ...
Datasheet PDF File FAN9611 PDF File

FAN9611
FAN9611

Overview
FAN9611 — Interleaved Dual BCM PFC Controllers February 2013 FAN9611 Interleaved Dual BCM PFC Controllers Features  Sync-Lock™ Interleaving Technology for 180° Out-of-Phase Synchronization Under All Conditions  Automatic Phase Disable at Light Load  Dead-Phase Detect Protection  2.
0 A Sink, 1.
0 A Source, High-Current Gate Drivers  High Power Factor, Low Total Harmonic Distortion  Voltage-Mode Control with (VIN)2 Feedforward  Closed-Loop Soft-Start with User-Programmable Soft-Start Time for Reduced Overshoot  Minimum Restart Frequency to Avoid Audible Noise  Maximum Switching Frequency Clamp  Brownout Protection with Soft Recovery  Non-Latching OVP on FB Pin and Latching Second- Level Protection on OVP Pin  Open-Feedback Protection  Power-Limit and Current Protection for Each Phase  Low Startup Current of 80 µA Typical  Works with DC and 50 Hz to 400 Hz AC Inputs Applications  100-1000 W AC-DC Power Supplies  Large Screen LCD-TV, PDP-TV, RP-TV Power  High-Efficiency Desktop and Server Power Supplies  Networking and Telecom Power Supplies  Solar Micro Inverters Description The FAN9611 interleaved dual Boundary-ConductionMode (BCM) Power-Factor-Correction (PFC) controller operates two parallel-connected boost power trains 180° out of phase.
Interleaving extends the maximum practical power level of the control technique from about 300 W to greater than 800 W.
Unlike the continuous conduction mode (CCM) technique often used at higher power levels, BCM offers inherent zero-current switching of the boost diodes, which permits the use of less expensive diodes without sacrificing efficiency.
Furthermore, the input and output filters can be smaller due to ripple current cancellation and effective doubling of the switching frequency.
The converters operate with variable frequency, which is a function of the load and the instantaneous input / output voltages.
The switching frequency is limited between 16.
5 kHz and 525 kHz.
The Pulse Width Modulators (PWM...


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