Catalog
6 A MOSFET Gate Driver
Key Features
- CMOS construction
- Latch-up protected: will withstand > 200 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 20 V
- High capacitive load drive of 10,000 pF
- Low delay time of 55 ns typical
- Logic high input for any voltage from 2.4 V to VS
- Low equivalent input capacitance (typical) at 6 pF
- Low supply current is 450 µA with logic 1 input
- Low output impedance is 2.5 Ω
- Output voltage swing within 25 mV of ground or VS
- Exposed backside pad packaging reduces heat
- ePad SOIC-8L (θJA = 58°C/W)
Description
AI
MIC4120 and MIC4129 MOSFET Gate drivers are tough, efficient, and easy to use. The MIC4129 is an inverting MOSFET Gate driver, while the MIC4120 is a non-inverting driver. The MIC4120 and MIC4129 are improved versions of the MIC4420 and MIC4429. They are capable of 6 A (peak) output and can drive the largest MOSFETs with an improved safe operating margin. The MIC4120/4129 accept any logic input from 2.4 V 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. MIC4120/4129 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 insures adequate gate voltage to the MOSFET during power up/down sequencing.
