IC-Hersteller Texas Instruments

IC-Hersteller (103)

Texas Instruments LMG5200 | Demoboard LMG5200POLEVM-10

Using the LMG5200: GaN Half-Bridge Power Stage EVM

Details

TopologieGegentaktwandler (Halbbrücken)
Eingangsspannung10-60 V
Ausgang 15 V / 10 A
IC-RevisionA

Beschreibung

The LMG5200 evaluation module is a small, easy-to-use power stage with an external PWM signal. Theboard can be configured as a buck converter, boost converter or other converter topology using a halfbridge. Because this is an open loop board with an external PWM signal, do not use it to evaluatetransient response. It can be used to evaluate the performance of the LMG5200 as a hard-switchedconverter to sample measurements such as efficiency, switching speed and dv/dt. The EVM features aLMG5200 half-bridge power module with two 18-mΩ GaN FETs and a half-bridge driver. The module candeliver up to 10 A of current if the application includes adequate thermal management (monitor casetemperature and ensure adequate airflow is present if required). The thermal management considerationsinclude forced air, heat sink and lower operating frequency in order to minimize the power dissipation inthe module.

Eigenschaften

LMG5200EVM-01A features include:

  • Input voltage operates up to 80 V DC
  • Integrated 80-V, 18-mΩ GaN FET with driver
  • Single-input, on-board for PWM signal with 8 ns dead time
  • Configurable on-board dead-time adjustment by simple resistance change
  • On-board LDO for generating 5-V VCC supply from a poorly regulated supply between 5.5 V and 6.5 V
  • Kelvin sense capability for efficiency measurements for input and output voltage

Typische Anwendungen

  • • Telecom and Datacom applications processor supply
  • Processor supply for computing environments with a 48-V bus
  • • Industrial and aerospace FPGA and ASIC applications

Weiterführende Informationen

Artikeldaten

Artikel Nr.
Daten­blatt
Simu­lation
Downloads
Status
Produktserie
λDom typ.(nm)
Emittierte Farbe
λPeak typ.(nm)
IV typ.(mcd)
VF typ.(V)
Chiptechnologie
50% typ.(°)
L(nH)
LR(nH)
IR(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
Muster
WL-SMCW SMT Mono-color Chip LED Waterclear, 525 nm, Grün
Simu­lation
Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.
dominante Wellenlänge [typ.]525 nm
Emittierte FarbeGrün 
Spitzen-Wellenlänge [typ.]515 nm
Lichtstärke [typ.]430 mcd
Durchlassspannung [typ.]3.2 V
ChiptechnologieInGaN 
Abstrahlwinkel Phi 0° [typ.]140 °
WE-HCM SMT-Hochstrominduktivität, –, –
Simu­lation
Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.
Induktivität250 nH
Nenninduktivität246 nH
Nennstrom25 A
Sättigungsstrom 141.6 A
Sättigungsstrom @ 30%46.5 A
Gleichstromwiderstand0.37 mΩ
Eigenresonanzfrequenz40 MHz
MaterialMnZn