Gate driver for synchronous rectification and low-side switching
The Texas Instruments TPS2814D is a dual-channel low-side MOSFET driver designed to drive both N-channel and P-channel MOSFETs. It delivers 2A peak source and sink current from a 4V to 14V supply rail, with typical rise and fall times of 14ns and 15ns respectively. The driver accepts both inverting and non-inverting input logic, with logic thresholds at 1V (VIL) and 4V (VIH). It is housed in an 8-SOIC surface-mount package and rated for operation from -40°C to 125°C, making it suitable for industrial power supplies, motor drives, DC-DC converters, and synchronous rectification stages where ambient temperatures climb.
2A peak drive — what it means for the switching loop
The 2A peak output current (both source and sink) directly determines how fast the MOSFET gate capacitance charges and discharges. With 14ns rise and 15ns fall times, this driver can switch medium-power MOSFETs in the 10 nC to 30 nC gate charge range cleanly at switching frequencies up to several hundred kilohertz. The synchronous channel type means the two outputs are complementary, which is the natural fit for half-bridge and synchronous buck topologies where one driver handles the high-side and the other the low-side, though the TPS2814D is configured as a low-side driver. The 4V to 14V supply range covers standard 5V and 12V bias rails, and the 1V/4V logic thresholds are compatible with 3.3V and 5V PWM controllers without external level shifting.
Active lifecycle — no LTB risk for production builds
It is ROHS3 compliant. There is no official second source listed in the TI portfolio, but the TPS2814D is the standard 8-SOIC variant of the TPS2814 family — the D suffix indicates the SOIC package, while the N suffix would be the PDIP version. If dual-sourcing is a requirement, qualifying the TPS2814N (through-hole) as a second assembly option is one path, but the footprint differs.