MIC4422

MIC4421A and MIC4422A MOSFET drivers are rugged, efficient, and easy to use. The MIC4421A is an inverting driver, while the MIC4422A 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 MIC4421A/4422A 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. MIC4421A/4422A 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 helps ensure 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.

Features
  • High peak-output current: 9A peak (typ.)
  • Wide operating range: 4.5V to 18V (typ.)
  • Minimum pulse width: 50ns
  • Latch-up proof: fully isolated process is inherently immune to any latch-up.
  • Input will withstand negative swing of up to 5V
  • High capacitive load drive: 47,000pF
  • Low delay time: 15ns (typ.)
  • Logic high input for any voltage from 2.4V to VS
  • Low equivalent input capacitance (typ.): 7pF
  • Low supply current: 500µA (typ.)
  • Output voltage swing to within 25mV of ground or VS
Parameter
Parameter Name Value Value
MOSFET Driver Type Low Side Low Side
Driver Type Single Single
Configuration Non-Inverting Non-Inverting
Peak Output Current (source/sink, A) 9.0 / 9.0 9.0 / 9.0
Output Resistance (source/sink, Ω) 0.8/0.6 0.8/0.6
Maximum Supply Voltage (V) 18 18
Propagation Delay (Td1/Td2, ns) 15/35 15/35
Rise/Fall Time (Tr/Tf, ns) 20/24 20/24
Capacitive Load Drive 10,000 pF in 24 ns 10,000 pF in 24 ns
Documents
MIC4421/4422 Data SheetData Sheets11/05/2015235KB
Micrel AN 16 - Designing with Low-Side MOSFET DriversAppNote10/01/201561KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MIC4422YM8SOIC-40C to +85CTUBE1.241.030.940.780.72
MIC4422YM-TR8SOIC-40C to +85CT/R1.241.030.940.780.72
MIC4422YN8PDIP-40C to +85CTUBE1.481.231.120.930.86
MIC4422ZM8SOIC0C to +70CTUBE**********
MIC4422ZM-TR8SOIC0C to +70CT/R1.160.970.880.730.68
MIC4422ZN8PDIP0C to +70CTUBE1.401.161.060.880.82
MIC4422ZT5TO-2200C to +70CTUBE2.742.292.081.731.60
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MIC4422AYN0.4867000.9000008PDIP.300inMatte Tine3
MIC4422AZN0.4867000.9000008PDIP.300inMatte Tine3
MIC4422YN0.4867000.9000008PDIP.300inMatte Tine3
MIC4422ZN0.4867000.9000008PDIP.300inMatte Tine3
MIC4422AZT1.9839003.1200005TO-220-Matte Tine3
MIC4422ZT1.9839003.1200005TO-220-Matte Tine3
MIC4422AYM0.0750000.1632658SOIC3.90mm(.150in)NiPdAue4
MIC4422AYM-TR0.0750000.2500008SOIC3.90mm(.150in)NiPdAue4
MIC4422AZM0.0750000.1632658SOIC3.90mm(.150in)NiPdAue4
MIC4422AZM-TR0.0750000.2500008SOIC3.90mm(.150in)NiPdAue4
MIC4422YM0.0750000.1632658SOIC3.90mm(.150in)NiPdAue4
MIC4422YM-TR0.0750000.2500008SOIC3.90mm(.150in)NiPdAue4
MIC4422ZM0.0750000.1632658SOIC3.90mm(.150in)NiPdAue4
MIC4422ZM-TR0.0750000.2500008SOIC3.90mm(.150in)NiPdAue4
MIC4421/4422 Data Sheet MIC4422
Micrel AN 16 MIC44F20