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LMG1205

ACTIVO

Controlador de compuerta de medio puente de 1.2 A, 5 A y 90 V con UVLO de 5 V para GaNFET y MOSFE

Detalles del producto

Bootstrap supply voltage (max) (V) 107 Power switch GaNFET, MOSFET Input supply voltage (min) (V) 4.5 Input supply voltage (max) (V) 5.5 Operating temperature range (°C) -40 to 125 Undervoltage lockout (typ) (V) 4 Rating Catalog Propagation delay time (µs) 0.035 Rise time (ns) 7 Fall time (ns) 3.5 Iq (mA) 0.09 Input threshold TTL Channel input logic TTL Switch node voltage (V) -5 Features Bootstrap supply voltage clamp, Split outputs on high and low side Driver configuration Half bridge
Bootstrap supply voltage (max) (V) 107 Power switch GaNFET, MOSFET Input supply voltage (min) (V) 4.5 Input supply voltage (max) (V) 5.5 Operating temperature range (°C) -40 to 125 Undervoltage lockout (typ) (V) 4 Rating Catalog Propagation delay time (µs) 0.035 Rise time (ns) 7 Fall time (ns) 3.5 Iq (mA) 0.09 Input threshold TTL Channel input logic TTL Switch node voltage (V) -5 Features Bootstrap supply voltage clamp, Split outputs on high and low side Driver configuration Half bridge
DSBGA (YFX) 12 3.24 mm² (— mm × — mm)
  • 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
  • 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

The LMG1205 is designed to drive both the high-side 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 using a bootstrap technique and is internally clamped at 5 V, which prevents the gate voltage from exceeding the maximum gate-source voltage rating of enhancement mode GaN FETs. The inputs of the LMG1205 are TTL logic compatible and can withstand input voltages up to 14 V regardless of the VDD voltage. The LMG1205 has split-gate outputs, providing flexibility to adjust the turnon and turnoff strength independently.

In addition, the strong sink capability of the LMG1205 maintains the gate in the low state, preventing unintended turnon during switching. The LMG1205 can operate up to several MHz. The LMG1205 is available in a 12-pin DSBGA package that offers a compact footprint and minimized package inductance.

The LMG1205 is designed to drive both the high-side 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 using a bootstrap technique and is internally clamped at 5 V, which prevents the gate voltage from exceeding the maximum gate-source voltage rating of enhancement mode GaN FETs. The inputs of the LMG1205 are TTL logic compatible and can withstand input voltages up to 14 V regardless of the VDD voltage. The LMG1205 has split-gate outputs, providing flexibility to adjust the turnon and turnoff strength independently.

In addition, the strong sink capability of the LMG1205 maintains the gate in the low state, preventing unintended turnon during switching. The LMG1205 can operate up to several MHz. The LMG1205 is available in a 12-pin DSBGA package that offers a compact footprint and minimized package inductance.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LMG1205 100-V, 1.2-A to 5-A, Half Bridge GaN Driver with Integrated Bootstrap Diode datasheet (Rev. B) PDF | HTML 14/04/2023
Nota sobre la aplicación Using Half-Bridge Gate Driver to Achieve 100% Duty Cycle for High Side FET PDF | HTML 25/03/2024
Nota sobre la aplicación Implementing Bootstrap Overcharge Prevention in GaN Half-bridge Circuits PDF | HTML 15/11/2023
Nota sobre la aplicación Bootstrap Circuitry Selection for Half Bridge Configurations (Rev. A) PDF | HTML 8/09/2023
Application brief GaN Applications PDF | HTML 10/08/2022
Application brief GaN Driver Schematic and Layout Recommendations PDF | HTML 10/08/2022
Application brief Nomenclature, Types, and Structure of GaN Transistors PDF | HTML 4/08/2022
Application brief Key Parameters and Driving Requirements of GaN FETs PDF | HTML 4/08/2022
Application brief How GaN Enables More Efficient and Reduced Form Factor Power Supplies PDF | HTML 2/08/2022
Nota sobre la aplicación Comparative Analysis of Two Different Methods for Gate-Drive Current Boosting (Rev. A) PDF | HTML 17/02/2022
Application brief External Gate Resistor Selection Guide (Rev. A) 28/02/2020
Application brief Understanding Peak IOH and IOL Currents (Rev. A) 28/02/2020
Nota sobre la aplicación GaN Gate Driver Layout Help 23/05/2019
Informe Optimizing multi-megahertz GaN driver design white paper (Rev. A) 27/11/2018
Informe A comprehensive methodology to qualify the reliability of GaN products 2/03/2015

Diseño y desarrollo

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Placa de evaluación

LMG1205HBEVM — Módulo de evaluación LMG1205 de etapa de potencia GaN

Etapa de potencia del módulo de evaluación de 80 V y 10 A: la placa del módulo de evaluación LMG1205 de medio es una pequeña etapa de potencia fácil de usar con una señal externa de modulación por ancho de pulsos. El módulo de evaluación es adecuado para evaluar el rendimiento del LMG1205 al (...)

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Modelo de simulación

LMG1205 PSpice Transient Model (Rev. A)

SNOM624A.ZIP (35 KB) - Modelo PSpice
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Modelo de simulación

LMG1205 TINA-TI Reference Design (Rev. A)

SNOM622A.TSC (131 KB) - Diseño de referencia TINA-TI
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Modelo de simulación

LMG1205 TINA-TI Transient Spice Model (Rev. A)

SNOM621A.ZIP (9 KB) - Modelo TINA-TI Spice
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Herramienta de cálculo

SNOR034 — LMG1205 Component Design Calculator and Schematic Review

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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
DSBGA (YFX) 12 Ultra Librarian

Pedidos y calidad

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