1 Features
• 650V 35mΩ GaN power FET with integrated gate
driver
– >200V/ns FET hold-off
– Adjustable slew rates for optimization of
switching performance and EMI mitigation
• 10V/ns to 80V/ns turn-on slew rates
• 10V/ns to full speed turn-off slew rates
– Operates with supply pin and input logic pin
voltage range from 9V to 26V
• Robust protection
– Cycle-by-cycle overcurrent and latched shortcircuit
protection with <300ns response
– Withstands 720V surge
– Self-protection from internal overtemperature
and UVLO monitoring
• Advanced power management
– LMG3656R035 includes zero-voltage detection
(ZVD) feature that facilitates soft-switching
converters
– LMG3657R035 includes zero-current detection
(ZCD) feature that facilitates soft-switching
converters
• 9.8mm × 11.6mm TOLL package with thermal pad

2 Applications
• Open rack server PSU
• Merchant telecom rectifiers
• Common redundant power supply
• Uninterruptible power supplies
• Solar inverters and industrial motor drives

3 Description
The LMG365xR035 GaN FET with integrated driver
and protection is targeted at switch-mode power
converters and enables designers to achieve new
levels of power density and efficiency.
Adjustable gate driver strength allows the control
of turn-on and maximum turn-off slew rates
independently, which can be used to actively control
EMI and optimize switching performance. Turn on
slew rate varies from 10V/ns to 80V/ns, while the
turn off slew rate can be limited from 10V/ns
to a maximum based on the magnitude of load
current. Protection features include under-voltage
lockout (UVLO), cycle-by-cycle overcurrent limit,
and short-circuit and overtemperature protection.
The LMG3651R035 provides a 5V LDO output on
LDO5V pin that powers external digital isolators. The
LMG3656R035 includes the zero-voltage detection
(ZVD) feature which provides a pulse output from the
ZVD pin when zero-voltage switching is realized. The
LMG3657R035 includes the zero-current detection
(ZCD) feature that sets the ZCD pin high when the
drain-to-source current is negative and transitions to
low upon detecting the zero-crossing point.