Power Factor Controllers | FAN6921BMR
概览
The highly integrated FAN6921BMR combines Power Factor Correction (PFC) controller and Quasi-Resonant PWM controller. Integration provides cost effect design and allows for fewer external components.
For PFC, FAN6921BMR uses a controlled on-time technique to provide a regulated DC output voltage and to perform natural power factor correction. With an innovative THD optimizer, FAN6921BMR can reduce input current distortion at zero-crossing duration to improve THD performance.
For PWM, FAN6921BMR provides several functions to enhance the power system performance: valley detection, green-mode operation, high / low line over power compensation. FAN6921MR provides many protection functions as well: secondary-side open-loop and over-current with auto recovery protection, external latch triggering, adjustable over-temperature protection by RT pin and external NTC resistor, internal over-temperature shutdown, VDD pin OVP, and DET pin over-voltage for output OVP, and brown-in / out for AC input voltage UVP.
The FAN6921BMR controller is available in a 16-pin small outline package (SOP).
- AC-DC Power Supply
- Power Supply
- Integrated PFC and Flyback Controller
- Critical Mode PFC Controller
- Zero-Current Detection for PFC Stage
- Quasi-Resonant Operation for PWM Stage
- Internal Minimum tOFF 8µs for QR PWM Stage
- Internal 10ms Soft-Start for PWM
- Brownout Protection
- High / Low Line Over-Power Compensation
- Auto-Recovery Over-Current Protection
- Auto-Recovery Open-Loop Protection
- Externally Latch Triggering (RT Pin)
- Adjustable Over-Temperature Latched (RT Pin)
- VDD Pin and Output Voltage OVP (Latched)
- Internal Over-Temperature Shutdown (140°C)
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FAN6921BMRMY
Active
Pb
A
H
P
SOIC-16
3
260
REEL
2500
F
CRM
Variable
Voltage Mode
Step-Up
Variable
30
550 / 700
18
Yes
Yes
No
$0.6767
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