Texas Instruments LMG5200 80V GaN Half Bridge Power Stage

Texas Instruments LMG5200 80V GaN Half-Bridge Power Stage provides an integrated power stage solution using enhancement-mode Gallium Nitride (GaN) FETs. The device consists of two 80V GaN FETs driven by one high-frequency GaN FET driver in a half-bridge configuration. GaN FETs provide significant advantages for power conversion as they have near-zero reverse recovery and minimal input capacitance CISS. All of Texas Instruments LMG5200 are mounted on a completely bond-wire free package platform with minimized package parasitic elements. The TTL logic compatible inputs can withstand input voltages up to 12V regardless of the VCC voltage. The proprietary bootstrap voltage clamping technique ensures the gate voltages of the enhancement-mode GaN FETs are within a safe operating range.

Features

  • Integrated 15mΩ GaN FETs and driver
  • 80V continuous, 100V pulsed voltage rating
  • Package optimized for easy PCB layout, eliminating the need for underfill, creepage, and clearance requirements
  • Low power consumption
  • Very low common source inductance to ensure high slew rate switching without causing excessive ringing in hard-switched topologies
  • Ideal for isolated and non-isolated applications
  • Gate driver capable of up to 10MHz switching
  • Internal bootstrap supply voltage clamping to prevent GaN FET overdrive
  • Supply rail undervoltage lockout protection
  • Excellent propagation delay (29.5ns typical) and matching (2ns typical)

Applications

  • Wide VIN multi-MHz synchronous buck converters
  • High power density single- and three-phase motor drive
  • Class D amplifiers for audio
  • 48V Point-of-Load (POL) converters for telecom, industrial, and enterprise computing

Block Diagram

Block Diagram - Texas Instruments LMG5200 80V GaN Half Bridge Power Stage
Paskelbta: 2017-04-19 | Atnaujinta: 2023-06-07