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

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Description

The FAN3122TMX is a high-speed low-side Gate Driver for synchronous rectifier circuits. The FAN3122 MOSFET driver is designed to drive N-channel enhancement MOSFETs in low-side switching applications by providing high peak current pulses. The driver is available with either TTL input thresholds. Internal circuitry provides an under-voltage lockout function by holding the output low until the supply voltage is within the operating range. The FAN312x drivers incorporate the MillerDrive™ architecture for the final output stage. This bipolar/MOSFET combination provides the highest peak current during the Miller plateau stage of the MOSFET turn-on/turn-off process. The FAN3122 driver implement an enable function on pin 3 (EN), previously unused in the industry-standard pin-out. The pin is internally pulled up to VDD for active HIGH logic and can be left open for standard operation.
Industry-standard pin-out with enable input
Non-inverting configuration
Internal resistors turn driver off if no inputs

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FAN3122TMX 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)	4.50V (min)
Rise/Fall Time	23ns, 19ns
Number of Outputs	1 Output
Output Current	9.7 A
Number of Positions	8 Position
Power Dissipation	0.396 W
Rise Time	29 ns
Fall Time	27 ns
Fall Time (Max)	27 ns
Fall Time (Max)	29 ns
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	4.5V ~ 18V
Supply Voltage (Max)	18 V
Supply Voltage (Min)	4.5 V
	Show
Size-Length	4.9 mm
Size-Width	3.9 mm
Size-Height	1.5 mm
Operating Temperature	-40℃ ~ 125℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15

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