FAN3217T: TTL input, dual non- inverting output, peak 3A sink, 3A source current Low-Side Gate Driver

The FAN3216 and FAN3217 dual 2A gate drivers are designed to drive N-channel enhancement-mode MOSFETs in low-side switching applications by providing high peak current pulses during the short switching intervals. They are both available with 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. 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 MOSFET.

The FAN3216/17 drivers incorporate MillerDriveH architecture for the final output stage. This bipolar-MOSFET combination provides high current during the Miller plateau stage of the MOSFET turn-on / turn-off process to minimize switching loss, while providing rail-to-rail voltage swing and reverse current capability.

The FAN3216 offers two inverting drivers and the FAN3217 offers two non-inverting drivers. Both are offered in a standard 8-pin SOIC package.

Features

• Industry-Standard Pinouts
• 4.5 to 18V Operating Range
• 3A Peak Sink/Source at V_DD = 12V
• 2.4A Sink / 1.6A Source at V_OUT = 6V
• TTL Input Thresholds
• Two Versions of Dual Independent Drivers:
  • Dual Inverting (FAN3216)
  • Dual Non-Inverting (FAN3217)
• Dual Inverting (FAN3216)
• Dual Non-Inverting (FAN3217)
• Internal Resistors Turn Driver Off If No Inputs
• MillerDrive™ Technology
• 12ns / 9ns Typical Rise/Fall Times with 1nF Load
• Typical Propagation Delay Under 20ns Matched within 1ns to the Other Channel
• Double Current Capability by Paralleling Channels
• Standard SOIC-8 Package
• Rated from -40°C to +125°C Ambient

Application Notes