FAN3100T: TTL input, single inverting or non-inverting output, peak 3A sink, 3A source current Low-Side Gate Driver

The FAN3100 2 A gate driver is designed to drive an N-channel enhancement-mode MOSFET in low-side switching applications by providing high peak current pulses during the short switching intervals. The driver is available with either TTL (FAN3100T) or CMOS (FAN3100C) 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 FAN3100 delivers fast MOSFET switching performance, which helps maximize efficiency in high-frequency power converter designs.

FAN3100 drivers incorporate MillerDrive™ architecture for the final output stage. This bipolar-MOSFET combination provides high peak 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 FAN3100 also offers dual inputs that can be configured to operate in non-inverting or inverting mode and allow implementation of an enable function. If one or both inputs are left unconnected, internal resistors bias the inputs such that the output is pulled low to hold the power MOSFET off.

The FAN3100 is available in a lead-free finish 2x2mm 6-lead Molded Leadless Package (MLP), for smallest size with excellent thermal performance, or industry-standard 5-pin SOT23.

Features

• 3 A Peak Sink/Source at V_DD = 12 V
• 4.5 to 18 V Operating Range
• 2.5 A Sink / 1.8 A Source at V_OUT = 6 V
• Dual-Logic Inputs Allow Configuration as Non-Inverting or Inverting with Enable Function
• Internal Resistors Turn Driver Off If No Inputs
• 13ns Typical Rise Time and 9 ns Typical Fall-Time with 1nF Load
• Choice of TTL or CMOS Input Thresholds
• MillerDrive™ Technology
• Typical Propagation Delay Time Under 20ns with Input Falling or Rising
• 6-Lead 2x2 mm MLP or 5-Pin SOT23 Packages
• Rated from –40°C to 125°C Ambient

Application Notes