High-Speed, 6A MOSFET Driver (Noninverting)

The MAX4420, MAX4429 and MXT429 are single-output MOSFET drivers designed to translate TTL/CMOS inputs to high-voltage/high-current outputs. The low 1.5n out­ put impedance and 6A peak current output allow them to rapidly switch high-capacitance power MOSFETs, im­ proving efficiency.

A 40ns delay time and a 25ns rise or fall time (while driving 2500pF to 18V) minimize power losses during MOSFET switching transitions.

The MAX4420/MAX4429/MXT429 interface easily with either CMOS or bipolar switch-mode controllers because their logic inputs draw under 10µA. The outputs swing to within 25mV of GND or the power-supply rail, which can be 4.5V to 1BV for the MAX4420/MAX4429, and 7V to 18V for the MXT429.

Power-supply quiescent current is typically 45µA and 450µA for logic input low and high, respectively. The MAX4420 has a non inverting output The MAX4429 and MXT429 have inverting outputs.

For dual drivers, refer to the MAX626/MAX627/MAX628 and MAX4426/MAX4427/MAX4428 data sheets.

APPLICATIONS

* Switching Power Supplies

* DC-DC Covertors

* Motor Controllers

* Pin-Diode Drivers

* TTL/CMOS Compatible (IIN < 10µA)

* 4.5V to 18V Supply Range (MAX4420/MAX4429)

* 1.SΩ Output Resistance

* 6A Peak Output Current

* 40ns Delay Time

* 25ns Rise and Fall Times (2500pF Load)

* Output Swings to within 25mV of VDD and GND