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Updated at 17/06/2025 10:30:15(UTC+8)

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Description

The FAN6208MY is a Synchronous Rectification (SR) Controller for isolated LLC or LC resonant converters that can drive two individual SR MOSFETs emulating the behaviour of rectifier diodes. FAN6208 measures the SR conduction time of each switching cycle by monitoring the drain-to-source voltage of each SR and determines the optimal timing of the SR gate drive. FAN6208 uses the change of opto-coupler diode current to adaptively shrink the duration of SR gate drive signals during load transients to prevent shoot-through. To improve lightload efficiency, Green-Mode operation is employed, which disables the SR drive signals, minimizing gate drive power consumption at light-load condition. Optimal timing circuits and protection functions are integrated, which allows high efficiency power supply design with fewer components.
Specialized SR controller for LLC or LC resonant converters
Secondary-side timing detection with timing estimator
Gate-shrink function to prevent shoot-through during load and line transient
Green-mode function for higher efficiency at light-load condition
Programmable dead time between primary-side gate drive signal and SR drive signal
Advanced output-short/overload protection based on the feedback information
Internal over-temperature protection (OTP)
VDD Pin over-voltage protection (OVP)

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FAN6208MY Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	SOIC-8
Supply Voltage (DC)	8.30V (min)
Number of Outputs	1 Output
Output Voltage	12 V
Output Current	8 A
Supply Current	4 mA
Number of Positions	8 Position
Power Dissipation	1 W
Rise Time	70 ns
Output Voltage (Max)	24 V
Fall Time	50 ns
Operating Temperature (Max)	105 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	1000 mW
Supply Voltage	8.8V ~ 28V
Supply Voltage (Max)	28 V
Supply Voltage (Min)	8.3 V
Input Voltage	8.8V ~ 28V
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Size-Length	4.9 mm
Size-Width	3.9 mm
Size-Height	1.585 mm
Operating Temperature	-40℃ ~ 105℃
Product Lifecycle Status	Active
Packaging	Cut Tape (CT)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99
HK STC License	NLR

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