MIC4452YM-TR

MIC4451 and MIC4452 CMOS MOSFET drivers are robust, efficient, and easy to use. The MIC4451 is an inverting driver, while the MIC4452 is a non-inverting driver. Both versions are capable of 12A (peak) output and can drive the largest MOSFETs with an improved safe operating margin. The MIC4451/4452 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. MIC4451/4452 drivers can replace three or more discrete components, reducing PCB area requirements, simplifying product design, and reducing assembly cost. Modern Bipolar/CMOS/DMOS construction guarantees freedom from latch-up. The rail-to-rail swing capability of CMOS/DMOS insures adequate gate voltage to the MOSFET during power up/down sequencing. Since these devices are fabricated on a self-aligned process, they have very low crossover current, run cool, use little power, and are easy to drive.

Applications

• Switch mode power supplies
• Motor controls
• Pulse transformer driver
• Class-D switching amplifiers
• Line drivers
• Driving MOSFET or IGBT parallel chip modules
• Local power ON/OFF switch
• Pulse generators

Key features

• BiCMOS/DMOS construction
• Latch-up proof: fully-isolated process is inherently immune to any latch-up
• Input will withstand negative swing of up to 5V
• Matched rise and fall times: 25ns
• High peak output current: 12A peak
• Wide operating range: 4.5V to 18V
• High capacitive load drive: 62,000pF
• Low delay time: 30ns (typ.)
• Logic high input for any voltage from 2.4V to Vs
• Low supply current 450μA with logic 1 input
• Low output impedance: 1.0Ω
• Output voltage swing to within 25mV of GND or Vs
• Low equivalent input capacitance (typ.): 7pF