Dual 4.5A low-side driver with inverting and non-inverting inputs
The Microchip TC4425AVOA is a dual-channel low-side MOSFET driver that delivers 4.5A peak source and 4.5A peak sink current per channel, with typical rise and fall times of 12ns into a 2500 pF load. Each channel accepts both inverting and non-inverting input signals, so a single part handles N-channel and P-channel MOSFET gate drive without external logic inverters. The supply range spans 4.5V to 18V, covering 5V logic rails through 12V and 15V gate drive levels.
150°C junction rating — thermal headroom for tight enclosures
The 150°C TJ ceiling gives the designer extra margin when the driver sits near hot MOSFETs or inductors on a dense board.
12ns edges — fast enough for 500 kHz switching, layout matters
The 12ns rise and fall times (typical at 2500 pF load) enable efficient switching up into the hundreds of kilohertz. Those fast edges reduce cross-conduction losses in the driven MOSFET but also demand a low-inductance layout — the gate-drive loop from driver output to MOSFET gate and back to the driver ground should be kept under 1 cm. The 8-SOIC package (0.154-inch body width, 3.90 mm) is a common footprint that fits existing PCB layouts for dual low-side drivers.