IC reference design search
IC manufacturers Analog Devices

IC manufacturers (108)

reference designLT8418 | Demoboard EVAL-LT8418-BZ

Analog Devices LT8418 | Demoboard EVAL-LT8418-BZ

100V Half-Bridge GaN Driver with Smart Integrated Bootstrap Switch

Overview

TopologyHalf-Bridge Converter symmetrical isolated
Input voltage80 V
Switching frequency100-10000 kHz
Output 180 V / 10 A

Description

The EVAL-LT8418-BZ evaluation circuit features the LT8418 driving two 100V enhanced Gallium Nitride (eGaN) FETs in a half-bridge configuration. The circuit is optimized as a buck converter, but it can be used as a boost converter or other converter topologies consisting of a half-bridge. The evaluation circuit can deliver up to 10A with good thermal management.An external single or two PWM signals are required to drive the board, depending on the configuration. In the single-input setup, the dead time circuitry on the board is utilized to generate the complement signal and set the dead time. The dead time circuitry is bypassed in the dual-input setup. The LT8418 driver has powerful 0.2Ω pull-down and 0.6Ω pull-up drivers driving two 100V GaN FETs. It also integrates a smart integrated bootstrap switch to generate a balanced bootstrap voltage from VCC with a minimum dropout voltage. The LT8418 provides split gate drivers to adjust the turn-on and turn-off slew rates of GaN FETs to suppress ringing and optimize EMI performance.

Features

  • Half-Bridge Gate Driver for GaN FETs
  • 0.6Ω Pull-Up Resistance at Top Gate Driver
  • 0.2Ω Pull-Down Resistance at Bottom Gate Driver
  • 4A Peak Source, 8A Peak Sink Current Capability
  • Smart Integrated Bootstrap Switch
  • Split-Gate-Driver to Adjust Turn-On/Turn-Off Strength
  • Default Low-State for All Driver Inputs and Outputs
  • Maximum 15V Voltage Rating at INT and INB Inputs
  • Independent INT, INB Inputs with TTL Logic Compatible
  • Fast Propagation Delay: 10ns (Typical)
  • Propagation Delay Matching: 1.5ns (Typical)
  • Balanced Driver Supply Voltage: VBST ≈ VCC = 3.85V – 5.5V
  • Undervoltage and Overvoltage Lockout Protections
  • Small 12-Ball WLCSP Package

Typical applications

  • Automotive
  • Consumer
  • Data Center Power Supplies
  • Industrial

More information

Parts approved by Analog Devices

Log in now to view availability and request availability forecasts. LOGIN
Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
C
Tol. C
VR(V (DC))
Size
DF(%)
RISO
Ceramic Type
W(mm)
Fl(mm)
L(µH)
IRP,40K(A)
ISAT,30%(A)
RDC typ.(mΩ)
RDC max.(mΩ)
fres(MHz)
Ti
Ø OD(mm)
Ø ID(mm)
Qty.
κ(W/(m*K))
Pins
Type
Mount
L(mm)
H(mm)
IR(A)
Working Voltage(V (AC))
Operating Temperature
Packaging
SamplesAvailability & Sample
Log in now to view availability and request availability forecasts. LOGIN
885012206046
SPECWCAP-CSGP MLCCs 16 V(DC), 100 nF, ±10%
Simu­lation
Availability
–
Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 16 V(DC)
Capacitance100 nF
Capacitance±10% 
Rated Voltage16 V (DC)
Size0603 
Dissipation Factor3.5 %
Insulation Resistance5 GΩ
Ceramic TypeX7R Class II 
Width0.8 mm
Pad Dimension0.4 mm
–
–
–
–
–
–
–
–
–
Packaging Unit4000 
–
–
–
–
Length1.6 mm
Height0.8 mm
–
–
Operating Temperature -55 °C up to +125 °C
Packaging7" Tape & Reel 
–Check availability
9774010151R
SPECWA-SMSI SMT Steel Spacer with internal Thread M2.5, –, –
Simu­lation–
Availability
–
Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWA-SMSI SMT Steel Spacer with internal Thread M2.5
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Inner ThreadM2.5 
Outer Diameter5.1 mm
Inner Diameter3.5 mm
Packaging Unit1500 
–
–
–
–
Length1 mm
–
–
–
Operating Temperature -55 °C up to +150 °C
PackagingTape and Reel 
–Check availability
60800213421
SPECWR-PHD Jumper, –, –
Simu­lation–
Availability
–
Downloads3 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Jumper
–
–
–
–
–
Insulation Resistance1000 MΩ
–
–
–
–
–
–
–
–
–
–
–
–
Packaging Unit1000 
–
Pins2 
–
–
–
–
Rated Current3 A
Working Voltage200 V (AC)
Operating Temperature -25 °C up to +105 °C
PackagingBag 
–Check availability
62000311121
SPECWR-PHD Pin Header, –, –
Simu­lation–
Availability
–
Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header
–
–
–
–
–
Insulation Resistance1000 MΩ
–
–
–
–
–
–
–
–
–
–
–
–
Packaging Unit1000 
–
Pins3 
TypeStraight 
MountTHT 
Length6 mm
–
Rated Current2 A
Working Voltage200 V (AC)
Operating Temperature -40 °C up to +105 °C
PackagingBag 
–Check availability
74439369047
SPECWE-XHMI SMT Power Inductor, –, –

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
–
Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-XHMI SMT Power Inductor
–
–
–
Size1090 
–
–
–
Width10.5 mm
–
Inductance4.7 µH
Performance Rated Current20 A
Saturation Current @ 30%28.05 A
DC Resistance5 mΩ
DC Resistance5.5 mΩ
Self Resonant Frequency21 MHz
–
–
–
Packaging Unit300 
–
Pins2 
–
MountSMT 
Length11.6 mm
Height8.8 mm
Rated Current13.5 A
–
Operating Temperature -40 °C up to +125 °C
–
–Check availability
4051100100017
SPECWE-TGS Graphite Sheet, –, –
Simu­lation–
Availability
–
Downloads3 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-TGS Graphite Sheet
–
–
–
–
–
–
–
Width100 mm
–
–
–
–
–
–
–
–
–
–
–
Thermal Conductivity1800 W/(m*K)
–
–
–
Length100 mm
Height0.037 mm
–
–
Operating Temperature -50 °C up to +120 °C
–
–Check availability