FAN3228T − Dual 2A High-Speed, Low-Side Gate Driver

Obsolete as of 25-Nov-2012

The FAN3226-29 family of dual 2A 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 enables connecting two drivers in parallel to effectively double the current capability driving a single MOSFET.

The FAN322X drivers incorporate MillerDrive™ 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 FAN3226 offers two inverting drivers and the FAN3227 offers two non-inverting drivers. Each device has dual independent enable pins that default to ON if not connected. In the FAN3228 and FAN3229, each channel has dual inputs of opposite polarity, which allows configuration as non-inverting or inverting with an optional enable function using the second input. 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.

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Product Status/Packaging

Index	Product	Product & Eco Status	Replacement Part Number	Packaging & Packing Info	**Package Marking Convention	Qualification Support	Compliance Certificates
2	FAN3228TMPX	Obsolete as of 20-Jun-2012 Green as of Mar 2007		MLP 3x3 8L (Power 33) Details MLP 3x3 8L (Power 33) Drawing  TAPE REEL	Line 1:$Y (Fairchild logo) &Z (Plant Code) &2 (2-Digit Date Code) &K Line 2:FAN Line 3:3228T	ESD (HBM) :  4000  V RTHETA (JA) :  43  °C/W Moisture Sensitivity Level (MSL) :  1   Show more... Max Reflow Temp :  260	RoHS IPC1752 RoHS/REACH/JIG RoHS/REACH/JIG
2	FAN3228TMX	Obsolete as of 25-Nov-2012 ROHS Compliant		SO 8L NB Details SO 8L NB Drawing  TAPE REEL	Line 1:$Y (Fairchild logo) &Z (Plant Code) &2 (2-Digit Date Code) &K Line 2:FAN3228T	ESD (HBM) :  4000  V RTHETA (JA) :  43  °C/W Moisture Sensitivity Level (MSL) :  1   Show more... Max Reflow Temp :  260	RoHS IPC1752 RoHS/REACH/JIG RoHS/REACH/JIG

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
• Choice of TTL or CMOS Input Thresholds
• Four Versions of Dual Independent Drivers:

• Dual Inverting + Enable (FAN3226)

• Dual Non-Inverting + Enable (FAN3227)

• Dual-Inputs in Two Pin-Out Configurations:
  

  ￭ Compatible with FAN3225x (FAN3228)
  ￭ Compatible with TPS2814D (FAN3229)

• 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
• 8-Lead 3x3mm MLP or 8-Lead SOIC Package
• Rated from –40°C to +125°C Ambient