onsemi | FAN3224TMX

The FAN3223-25 family of dual 4 A gate drivers is designed to drive N-channel enhancement-mode MOSFETs in low-side switching applications by providing high peak current pulses during the short switching intervals. The driver is available with either TTL or CMOS input thresholds. Internal circuitry provides an under-voltage lockout function by holding the output LOW until the supply voltage is within the operating range.

In addition, the drivers feature matched internal propagation delays between A and B channels for applications requiring dual gate drives with critical timing, such as synchronous rectifiers. This also enables connecting two drivers in parallel to effectively double the current capability driving a single MOSFETS.  

Features:

• 4.5 to 18 V Operating Range
• 5 A Peak Sink/Source at VDD = 12 V
• 4.3 A Sink / 2.8 A Source at VOUT = 6 V
• Choice of TTL or CMOS Input Thresholds
• Three Versions of Dual Independent Drivers:
• Dual Inverting + Enable (FAN3223)
• Dual Non-Inverting + Enable (FAN3224)
• Dual-Inputs(FAN3225)
• Internal Resistors Turn Driver Off If No Inputs
• MillerDrive™ Technology
• 12ns / 9ns Typical Rise/Fall Times with 2.2nF Load
• Typical Propagation Delay Under 20ns Matched within 1ns to the Other Channel
• Double Current Capability by Paralleling Channels
• Rated from –40°C to +125°C Ambient

Applications:

• Switch-Mode Power Supplies
• High-Efficiency MOSFET Switching
• Synchronous Rectifier Circuits
• DC-to-DC Converters
• Motor Control