N-channel MOSFET driver reduces switching losses

It is in stock at distributor Digi-Key Electronics.

This device allows for two N-channel MOSFETs to be controlled in half-bridge or synchronous-buck-configuration-based topologies.

The 3.5 A peak-sink-current and 2.5 A peak source current along with low pull-up and pull-down resistance allows the UCC27288 to drive large power MOSFETs with a minimum of switching losses during the transition of the MOSFET Miller plateau.

Since the inputs are independent of the supply voltage, the UCC27288 can be used in conjunction with both analogue and digital controllers. The input pins and HS pin can tolerate significant negative voltage, which improves system robustness.

The inputs are completely independent of each other. This allows for control flexibility where two outputs can be overlapped by overlapping inputs if needed. Small propagation delay and delay matching specifications minimise the deadtime requirement which improves system efficiency.

Undervoltage lockout (UVLO) is provided for the high-side and low-side driver stages forcing the outputs low if the V_DD voltage is below the specified threshold.

No integrated bootstrap diode allows users to use an application-appropriate external bootstrap diode.

The UCC27288 is offered in an SOIC8 package to improve system robustness in harsh environments.

Applications include solar power optimisers, merchant networks and servers PSU, merchant telecom rectifiers, DC input BLDC motor drives and test and measurement equipment.