Catalog
6 A MOSFET Gate Driver
Key Features
- CMOS construction
- Latch-up protected: will withstand > 500 mA reverse output current
- Logic input withstands negative swing of up to 5 V
- Matched rise and fall times of 25 ns
- High peak output current at 6 A
- Wide operating range from 4.5 V to 18 V
- High capacitive load drive of 10,000 pF
- Low delay time of 55 ns typical
- Low delay time 55 ns typ.
- Logic high input for any voltage from 2.4 V to VS
- Low equivalent input capacitance 6 pF (typical)
- Low supply current 450 µA with logic 1 input
- Low output impedance 2.5 Ω
- Output voltage swing within 25 mV of ground or VS
Description
AI
MIC4420, MIC4429 and MIC429 MOSFET gate drivers are tough, efficient, and easy to use. The MIC4429 and MIC429 are inverting drivers, while the MIC4420 is a non-inverting driver. They are capable of 6 A (peak) output and can drive the largest MOSFETs with an improved safe operating margin. The MIC4420/4429/429 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 5 V without damaging the part. Additional circuits protect against damage from electrostatic discharge. MIC4420/4429/429 drivers can replace three or more discrete components, reducing PCB area requirements, simplifying product design, and reducing assembly cost. Modern BiCMOS/DMOS construction guarantees freedom from latch-up. The rail-to-rail swing capability helps ensure adequate gate voltage to the MOSFET during power up/down sequencing. Note: See MIC4120/4129 for high power and narrow pulse applications.
