MIC4421

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.

产品特性
  • 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
技术参数
Parameter Name Value Value
MOSFET Driver Type Low Side Low Side
Driver Type Single Single
Configuration Inverting 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
文档资料
MIC4421/4422 Data SheetData Sheets11/05/2015235KB
Micrel AN 16 - Designing with Low-Side MOSFET DriversAppNote10/01/201561KB
订购型号
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MIC4421YM8SOIC-40C to +85CTUBE1.241.030.940.780.72
MIC4421YM-TR8SOIC-40C to +85CT/R1.241.030.940.780.72
MIC4421ZM-TR8SOIC0C to +70CT/R1.160.970.880.730.68
MIC4421ZT5TO-2200C to +70CTUBE2.742.292.081.731.60
器件无铅环保信息
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MIC4421AYN0.4867000.9000008PDIP.300inMatte Tine3
MIC4421AZN0.4867000.9000008PDIP.300inMatte Tine3
MIC4421YN0.4867000.9000008PDIP.300inMatte Tine3
MIC4421ZN0.4867000.9000008PDIP.300inMatte Tine3
MIC4421AZT1.9839003.1200005TO-220-Matte Tine3
MIC4421ZT1.9839003.1200005TO-220-Matte Tine3
MIC4421AYM0.0750000.1632658SOIC3.90mm(.150in)NiPdAue4
MIC4421AYM-TR0.0750000.2500008SOIC3.90mm(.150in)NiPdAue4
MIC4421AZM0.0750000.1632658SOIC3.90mm(.150in)NiPdAue4
MIC4421AZM-TR0.0750000.2500008SOIC3.90mm(.150in)NiPdAue4
MIC4421YM0.0750000.1632658SOIC3.90mm(.150in)NiPdAue4
MIC4421YM-TR0.0750000.2500008SOIC3.90mm(.150in)NiPdAue4
MIC4421ZM0.0750000.1632658SOIC3.90mm(.150in)NiPdAue4
MIC4421ZM-TR0.0750000.2500008SOIC3.90mm(.150in)NiPdAue4
MIC4421AXM-TR0.0750000.2500008SOIC3.90mm(.150in)NiPdAue4
MIC4421/4422 Data Sheet MIC4422
Micrel AN 16 MIC44F20