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MIC4421A

9A Inverting Peak Low Side MOSFET Driver

Status: In Production

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
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

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.

Additional 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
Parametrics
Name
Value
MOSFET Driver Type
Low Side
Driver Type
Single
Configuration
Inverting
Peak Output Current (source/sink, A)
9.0 / 9.0
Output Resistance (source/sink, Ω)
0.8/0.6
Maximum Supply Voltage (V)
18
Propagation Delay (Td1/Td2, ns)
15/35
Rise/Fall Time (Tr/Tf, ns)
20/24
Capacitive Load Drive
10,000 pF in 24 ns

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC4421AYM
0.075000
0.163265
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC4421AYM-TR
0.075000
0.250000
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC4421AZM
0.075000
0.163265
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC4421AZM-TR
0.075000
0.250000
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC4421AXM-TR
0.075000
0.250000
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC4421AYN
0.486700
0.900000
8
PDIP
.300in
Matte Tin
e3
MIC4421AZN
0.486700
0.900000
8
PDIP
.300in
Matte Tin
e3
MIC4421AZT
1.983900
3.120000
5
TO-220
-
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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