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.
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
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
|
|
Documents
| MIC4421/4422 Data Sheet | Data Sheets | 11/05/2015 | 235KB | |
|
| Micrel AN 16 - Designing with Low-Side MOSFET Drivers | AppNote | 10/01/2015 | 61KB |  |
Ordering Information
| Part Number | Leads | Package Type | Temp Range | Packing | 1+ | 26+ | 100+ | 1000+ | 5000+ |
|---|
| MIC4421YM | 8 | SOIC | -40C to +85C | TUBE | 1.24 | 1.03 | 0.94 | 0.78 | 0.72 |
| MIC4421YM-TR | 8 | SOIC | -40C to +85C | T/R | 1.24 | 1.03 | 0.94 | 0.78 | 0.72 |
| MIC4421ZM-TR | 8 | SOIC | 0C to +70C | T/R | 1.16 | 0.97 | 0.88 | 0.73 | 0.68 |
| MIC4421ZT | 5 | TO-220 | 0C to +70C | TUBE | 2.74 | 2.29 | 2.08 | 1.73 | 1.60 |
RoHS Information
| PartNumber | DeviceWeight | ShippingWeight | LeadCount | PackageType | PackageWidth | SolderComposition | JEDECIndicator | RoHS | ChinaEFUP |
|---|
| MIC4421AYN | 0.486700 | 0.900000 | 8 | PDIP | .300in | Matte Tin | e3 |  |  |
| MIC4421AZN | 0.486700 | 0.900000 | 8 | PDIP | .300in | Matte Tin | e3 | | |
| MIC4421YN | 0.486700 | 0.900000 | 8 | PDIP | .300in | Matte Tin | e3 | | |
| MIC4421ZN | 0.486700 | 0.900000 | 8 | PDIP | .300in | Matte Tin | e3 | | |
| MIC4421AZT | 1.983900 | 3.120000 | 5 | TO-220 | - | Matte Tin | e3 | | |
| MIC4421ZT | 1.983900 | 3.120000 | 5 | TO-220 | - | Matte Tin | e3 | | |
| 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 | | |
| MIC4421YM | 0.075000 | 0.163265 | 8 | SOIC | 3.90mm(.150in) | NiPdAu | e4 | | |
| MIC4421YM-TR | 0.075000 | 0.250000 | 8 | SOIC | 3.90mm(.150in) | NiPdAu | e4 | | |
| MIC4421ZM | 0.075000 | 0.163265 | 8 | SOIC | 3.90mm(.150in) | NiPdAu | e4 | | |
| MIC4421ZM-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 | | |
