The MIC4129 is an inverting 6A peak low-side MOSFET driver designed for applications such as switch-mode power supplies, motor controls, pulse transformer drivers, and Class-D amplifiers. It is available in an 8-pin ePAD SOIC or 3mm x 3mm MLF package, with thermal resistances of 58°C/W and 60°C/W respectively. The device operates from 4.5V to 20V, features a logic input compatible with voltages from 2.4V to V_S, and can withstand input voltage swings down to -5V. It provides matched rise and fall times of up to 35ns, a typical propagation delay of 55ns, and output swing within 25mV of supply or ground. The driver includes latch-up protection withstanding more than 200mA reverse current and is optimized for capacitive loads up to 10,000pF. It meets ESD protection standards per the human body model.
MIC4120 and MIC4129 MOSFET drivers are tough, efficient, and easy to use. The MIC4129 is an inverting 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 6A (peak) output and can drive the largest MOSFETs with an improved safe operating margin. The MIC4120/4129 accept 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. 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.
Additional Features
| Microchip Technology, Inc. | |
|---|---|
| Product Category | Metal-Oxide Semiconductor FET (MOSFET) |
| Product Number | MIC4129 |
| Product Name | 6A Inverting Peak Low Side MOSFET Driver |