Microchip | MIC4429YM

MIC4429YM, MIC4420 and MIC429 MOSFET drivers are tough, efficient, and easy to use. The MIC4429 and MIC429 are inverting drivers, while the MIC4420 is a non-inverting driver. They are capable of 6 A (peak) output and can drive the largest MOSFETs with an improved safe operating margin.

The MIC4420/4429/429 accepts any logic input from 2.4 V to VS without external speed-up capacitors or resistor networks. Proprietary circuits allow the input to swing negative by as much as 5 V without damaging the part. Additional circuits protect against damage from electrostatic discharge. MIC4420/4429/429 drivers can replace three or more discrete components, reducing PCB area requirements, simplifying product design, and reducing assembly cost. Modern BiCMOS/DMOS construction guarantees freedom from latch-up. The rail-to-rail swing capability insures adequate gate voltage to the MOSFET during power up/down sequencing.

Key Features:

• CMOS Construction.
• Latch-Up Protected: Will Withstand >500 mA.
• Reverse Output Current.
• Logic Input Withstands Negative Swing of Up to 5 V.
• Matched Rise and Fall Times 25 ns.
• High Peak Output Current 6 A Peak.
• Wide Operating Range 4.5 V to 18 V.
• High Capacitive Load Drive 10,000 pF.
• Low Delay Time 55 ns Typ.
• Logic High Input for Any Voltage From 2.4 V to VS.
• Low Equivalent Input Capacitance (typ) 6 pF.
• Low Supply Current 450µA With Logic 1 Input.
• Low Output Impedance 2.5 Ω.
• Output Voltage Swing Within 25 mV of Ground or VS.

Applications:

• Switch Mode Power Supplies.
• Motor Controls.
• Pulse Transformer Driver.
• Class-D Switching Amplifiers.