Description
The DEIC421 is a CMOS high speed high current gate driver specifically designed to drive MOSFETs in Class D, E, and RF applications at up to 45MHz, as well as other applications requiring ultrafast rise and fall times or short minimum pulse widths. The DEIC421 is an improved version of the DEIC420. The DEIC421 has a Kelvin ground connection on the input side to allow the use of a common mode choke to avoid problems with ground bounce. The internal layout of the package has been improved to reduce inductance. The DEIC421 can source and sink 20A of peak current while producing voltage rise and fall times of less than 4ns, and minimum pulse widths of 8ns. The input of the driver is compatible with +5V or CMOS and is fully immune to latch up over the entire operating range. Its features and wide safety margin in operating voltage and power make the DEIC421 unmatched in performance and value.

Features
• Built using the advantages and compatibility of CMOS and IXYS HDMOS™ processes
• Latch-Up Protected
• High Peak Output Current: 20A Peak
• Wide Operating Range: 8V to 30V
• Rise and Fall Times of <4ns
• Minimum Pulse Width of 8ns
• High Capacitive Load Drive Capability: 4nF in <4ns
• Matched Rise and Fall Times
• 32ns Input to Output Delay Time
• Low Output Impedance
• Low Quiescent Supply Current
• Kelvin input ground connection
• Reduced internal inductance

Applications
• Driving RF MOSFETs
• Class D or E Switching Amplifier Drivers
• Multi-MHz Switch Mode Power Supplies (SMPS)
• Pulse Generators
• Acoustic Transducer Drivers
• Pulsed Laser Diode Drivers
• Pulse Transformer Driver