MIC4451
MIC4451 and MIC4452 CMOS MOSFET drivers are tough, efficient, and easy to use. The MIC4451 is an inverting driver, while the MIC4452 is a non-inverting driver.
Both versions are capable of 12A (peak) output and can drive the largest MOSFETs with an improved safe operating margin. The MIC4451/4452 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.
MIC4451/4452 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- BiCMOS/DMOS construction
- Latch-up proof: fully isolated process is inherently immune to any latch-up.
- Input will withstand negative swing of up to 5V
- Matched rise and fall times 25ns
- High peak output current 12A peak
- Wide operating range 4.5V to 18V
- High capacitive load drive 62,000pF
- 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 1.0Ω
- 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)
12.0/12.0
|
12.0/12.0
| |
Output Resistance (source/sink, Ω)
0.8/0.6
|
0.8/0.6
| |
Maximum Supply Voltage (V)
18
|
18
| |
Propagation Delay (Td1/Td2, ns)
25/40
|
25/40
| |
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
| MIC4451/4452 Data Sheet | Data Sheets | 11/05/2015 | 617KB | |
|
| 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+ |
|---|
| MIC4451YM | 8 | SOIC | -40C to +85C | TUBE | 1.61 | 1.34 | 1.22 | 1.02 | 0.94 |
| MIC4451YM-TR | 8 | SOIC | -40C to +85C | T/R | 1.61 | 1.34 | 1.22 | 1.02 | 0.94 |
| MIC4451YN | 8 | PDIP | -40C to +85C | TUBE | 1.93 | 1.60 | 1.46 | 1.22 | 1.12 |
| MIC4451ZT | 5 | TO-220 | 0C to +70C | TUBE | 3.48 | 2.90 | 2.64 | 2.20 | 2.03 |
RoHS Information
| PartNumber | DeviceWeight | ShippingWeight | LeadCount | PackageType | PackageWidth | SolderComposition | JEDECIndicator | RoHS | ChinaEFUP |
|---|
| MIC4451YN | 0.486700 | 0.900000 | 8 | PDIP | .300in | Matte Tin | e3 |  |  |
| MIC4451ZT | 1.983900 | 3.120000 | 5 | TO-220 | - | Matte Tin | e3 | | |
| MIC4451YM | 0.075000 | 0.163265 | 8 | SOIC | 3.90mm(.150in) | NiPdAu | e4 | | |
| MIC4451YM-TR | 0.075000 | 0.250000 | 8 | SOIC | 3.90mm(.150in) | NiPdAu | e4 | | |
