NCP51820 High-Performance 650 V Half-Bridge Gate Driver for GaN Power Switches

Product Highlights > NCP51820 High-Performance 650 V Half-Bridge Gate Driver for GaN Power Switches

            NCP51820 High-Performance 650 V Half-Bridge Gate Driver for GaN Power Switches
                    onsemi's NCP51820 driver offers protection functions such as independent UVLO and IC thermal shutdown
    

Image of onsemi's NCP51820 High-Performance 650 V Half-Bridge Gate Driver for GaN Power Switches onsemi's NCP51820 high-speed gate driver is designed to meet the stringent requirements of driving enhancement mode (e-mode) and gate injection transistor (GIT) GaN HEMT power switches in offline, half-bridge power topologies. The NCP51820 offers short and matched propagation delays as well as -3.5 V to +650 V (typical) common mode voltage range for the high-side drive. To fully protect the gate of the GaN power transistor against excessive voltage stress, both drive stages employ a dedicated voltage regulator to accurately maintain the gate-source drive signal amplitude. The NCP51820 offers important protection functions such as independent undervoltage lockout (UVLO) and IC thermal shutdown.

Resources

Application Note: NCP51820 GaN Driver, PCB Design and Layout
Technical Documentation: The Difference Between GaN and SiC Transistors

Features

650 V, high-side and low-side gate driver
Fast propagation delay of 50 ns max
Matched propagation delay of 5 ns max
200 V/ns dv/dt rating for all SW and PGND referenced circuitry
Separate source and sink output pin
Regulated 5.2 V gate driver with independent UVLO for high-side and low-side output stages
QFN 4 mm x 4 mm 15 pin packaging and optimized pinout

Design margin for AC/DC design
Suitable for high-frequency operation
Increased efficiency and allow paralleling
Robust design for high switching frequency application
Allow control of rise and fall time for EMI tuning
Optimum driving of GaN power switches and simplify design
Small PCB footprint, reduced parasitic, suitable for high-frequency operation

Applications

Resonant converters
Half-bridge and full-bridge converters
Active clamp flyback converters
Totem pole bridgeless PFCs
Power supply for OLED TVs

High-power gaming adapters
USB PD cellphone and notebook travel adapters
Server/cloud data-center offline power
Industrial inverters and motor drives