LMG3410 Datasheet, PDF (1/33 Pages) Texas Instruments – 600-V 12-A Single Channel GaN Power Stage

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LMG3410
SNOSD10A – APRIL 2016 – REVISED JUNE 2016
GaN TECHNOLOGY PREVIEW
LMG3410 600-V 12-A Single Channel GaN Power Stage
1 Features
•1 Integrated 70-mΩ, 600-V GaN and Driver
• Single Package for Ease of Design and Layout
• Up to 1 MHz Steady-State Operation
• 20-ns Typical Propagation Delay
• Operates From a Single Unregulated 12-V Supply
• Externally-Adjustable Drive Strength for Switching
Performance and EMI Control
– Supports 25 to 100 V/ns
• Integrated DC-DC Converter for Negative Drive
Voltage
• Fault Output Ensures Safety
– UVLO Protection
– Over-Current Protection
– Over-Temperature Protection
• High Edge-Rate Tolerance
2 Applications
• Server/Telecom AC-DC Supplies
• Rack-Mount Server DC Power Distribution
• Solar Inverters
• Motor Drives
3 Description
The LMG3410 Single-Channel Gallium-Nitride (GaN)
Power Stage contains a 70-mΩ, 600-V GaN power
transistor and specialized driver in an 8-mm by 8-mm
QFN package. Our Direct Drive architecture is used
to create a normally-off device while providing the
native switching performance of the GaN power
transistor. When the LMG3410 is unpowered, an
integrated low-voltage silicon MOSFET turns the GaN
device off via its source. In normal operation, the low-
voltage silicon MOSFET is held on continuously while
the GaN device is gated directly from an internally-
generated negative voltage supply.
The integrated driver provides additional protection
and convenience features. Fast over-current, over-
temperature and under-voltage lockout (UVLO)
protections help create a fail-safe system; the
device's status is indicated by the FAULT output. An
internal 5-V low-dropout regulator can provide up to 5
mA to supply external signal isolators. Finally,
externally-adjustable slew rate and a low-inductance
QFN package minimize switching loss, drain ringing,
and electrical noise generation.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMG3410
QFN (32)
8.00 mm × 8.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified System Diagram
Vbus
VDD1
VDD2
VSS1
VSS2
ISO7821F
LDO5V _VDD
FAULT
IN
LPM
UVLO
OCP
OTP
RDRV
GND
VNEG BBSW
12 V
FLT2 HO
FLT1
LO
LPM
VSS
Microcontroller
LDO5V V_DD
FAULT
IN
LPM
UVLO
OCP
OTP
RDRV
GND
VNEG BBSW
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this document addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. GaN TECHNOLOGY PREVIEW Information. Product in design phase of
development. Subject to change or discontinuance without notice.