General Description

MIC4420, MIC4429 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 6A (peak) output and can drive the largest MOSFETs with an improved safe operating margin. The MIC4420/4429/429 accepts any logic input from 2.4V to VS without external speed-up capacitors or resistor networks. Proprietary circuits allow the input to swing negative by as much as 5V without damaging the part. Additional circuits protect against damage from electrostatic discharge.

特性 Features

? CMOS Construction

? Latch-Up Protected: Will Withstand >500mA

Reverse Output Current

? Logic Input Withstands Negative Swing of Up to 5V

? Matched Rise and Fall Times ................................25ns

? High Peak Output Current ............................... 6A Peak

? Wide Operating Range ...............................4.5V to 18V

? High Capacitive Load Drive ............................10,000pF

? Low Delay Time .............................................. 55ns Typ

? Logic High Input for Any Voltage From 2.4V to VS

? Low Equivalent Input Capacitance (typ)..................6pF

? Low Supply Current ...............450μA With Logic 1 Input

? Low Output Impedance ......................................... 2.5Ω

? Output Voltage Swing Within 25mV of Ground or VS

Applications

? Switch Mode Power Supplies

? Motor Controls

? Pulse Transformer Driver

? Class-D Switching Amplifiers