HomedatasheetMIC4421BM

MIC4421BM Datasheet

Power Driver ICs
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Description

MIC4421 and MIC4422 MOSFET drivers are rugged, efficient, and easy to use. The MIC4421 is an inverting driver, while the MIC4421BM is a non-inverting driver. Both versions are capable of 9A (peak) output and can drive the largest MOSFETs with an improved safe operating margin. The MIC4421/4422 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. MIC4421/4422 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. MIC4421BM Features• BiCMOS/DMOS Construction• Latch-Up Proof: Fully Isolated Process is InherentlyImmune to Any Latch-up.• Input Will Withstand Negative Swing of Up to 5V• Matched Rise and Fall Times ............................... 25ns• High Peak Output Current ...............................9A Peak• Wide Operating Range .............................. 4.5V to 18V• High Capacitive Load Drive ........................... 47,000pF• Low Delay Time .............................................30ns Typ.• Logic High Input for Any Voltage from 2.4V to VS• Low Equivalent Input Capacitance (typ) ................. 7pF• Low Supply Current .............. 450μA With Logic 1 Input• Low Output Impedance .........................................1.5Ω• Output Voltage Swing to Within 25mV of GND or VS MIC4421BM 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
Features

Parameters

[{"Name":"Number of Drivers: ","Value":"1"},{"Name":"Rise Time: ","Value":"75 ns "},{"Name":"Fall Time: ","Value":"75 ns "},{"Name":"Output Current: ","Value":"9 A "},{"Name":"Supply Voltage - Max: ","Value":"18 V "},{"Name":"Supply Voltage - Min: ","Value":"4.5 V "},{"Name":"Supply Current: ","Value":"1.5 mA "},{"Name":"Maximum Power Dissipation: ","Value":"1040 mW "},{"Name":"Minimum Operating Temperature: ","Value":"- 40 C"},{"Name":"Maximum Operating Temperature:","Value":"+ 85 C "}]

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