LMG1205 - Texas Instruments

LMG1205 Half Bridge GaN Driver

The LMG1205 is designed to drive both the highside and the low-side enhancement mode Gallium Nitride (GaN) FETs in a synchronous buck, boost, or half-bridge configuration. The device has an integrated 100-V bootstrap diode and independent inputs for the high-side and low-side outputs for maximum control flexibility. The high-side bias voltage is generated u.

Features

• Independent high-side and low-side TTL logic inputs
• 1.2-A peak source, 5-A sink current
• High-side floating bias voltage rail operates up to 100 VDC
• Internal bootstrap supply voltage clamping
• Split outputs for adjustable turnon, turnoff strength
• 0.6-Ω pulldown, 2.1-Ω pullup resistance
• Fast propagation times (35 ns typical)
• Excellent propagation delay matching (1.5 ns typical)
• Supply rail undervoltage lockout
• Low power consumption 2 Applications
• Current-fed push-pull converters
• Half and full-bridge converters
• Synchronous buck converters
• Two-switch forward converters
•.