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FAN6920MR Datasheet(PDF) 1 Page - Fairchild Semiconductor

No. de pieza FAN6920MR
Descripción Electrónicos  Integrated Critical-Mode PFC and Quasi-Resonant Current-Mode PWM Controller
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Fabricante Electrónico  FAIRCHILD [Fairchild Semiconductor]
Página de inicio  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FAN6920MR Datasheet(HTML) 1 Page - Fairchild Semiconductor

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April 2011
© 2010 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN6920MR • Rev. 1.0.3
FAN6920MR
Integrated Critical-Mode PFC and Quasi-Resonant
Current-Mode PWM Controller
Features
Integrated PFC and Flyback Controller
Critical-Mode PFC Controller
Zero-Current Detection for PFC Stage
Quasi-Resonant Operation for PWM Stage
Internal Minimum 5µs tOFF for QR PWM Stage
Internal 5ms Soft-Start for PWM
Brownout Protection
High / Low Line Over-Power Compensation
Auto-Recovery Over-Current Protection
Auto-Recovery Open-Loop Protection
Externally Auto-Recovery Triggering (RT Pin)
Adjustable Over-Temperature Protection
VDD Pin and Output Voltage OVP (Auto-Recovery)
Internal Over-Temperature Shutdown (140°C)
Applications
AC/DC NB Adapters
Open-Frame SMPS
Battery Charger
Description
The highly integrated FAN6920MR combines Power
Factor Correction (PFC) controller and quasi-resonant
PWM controller. Integration provides cost-effective
design and reduces external components.
For PFC, FAN6920MR 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, FAN6920MR can reduce
input current distortion at zero-crossing duration to
improve THD performance.
For PWM, FAN6920MR provides several functions to
enhance the power system performance: valley
detection, green-mode operation, and high / low line
over-power compensation. Protection functions include
secondary-side open-loop and over-current with auto-
recovery protection; external auto-recovery 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 FAN6920MR controller is available in a 16-pin
small-outline package (SOP).
Ordering Information
Part Number
OLP Mode
Operating
Temperature Range
Package
Packing
Method
FAN6920MRMY
Recovery
-40°C to +105°C
16-Pin Small Outline Package (SOP)
Tape & Reel


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