Tiny gate driver delivers 5A for GaN power, at up to 60MHz


TI-LMG1020

Typical propagation delay is speedy 2.5ns (4.5ns max) and minimum pulse width is 1ns, allowing operation at up to 60MHz.

“The single, low-side driver enables efficient, high-performance designs in speed-critical applications such as lidar and time-of-flight laser drivers, facial recognition, augmented reality, and class E wireless chargers,” according to component distributor Mouser, which is stocking the part.

To control output transients from the GaN transistor, the driver’s output strength is independently adjustable for pull-up and pull-down edges by connecting external resistors between the GaN gate and two separated outputs on the driver – see diagram.

Protection features include over-temperature and under-voltage lockout, common-mode transient immunity is above 300V/ns, and the inputs include Schmidt triggers.

Included dead-time control is included for applications such as DC-DC converters, Class-D audio amplifiers and motor drives,” said Mouser.



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