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LM5105

ACTIVO

Controlador de puerta de medio puente de 1.8 A, 1.6 A y 100 V con UVLO de 8 V y tiempo muerto progra

Detalles del producto

Bootstrap supply voltage (max) (V) 100 Power switch MOSFET Input supply voltage (min) (V) 8 Input supply voltage (max) (V) 14 Peak output current (A) 1.8 Operating temperature range (°C) -40 to 125 Undervoltage lockout (typ) (V) 8 Rating Catalog Propagation delay time (µs) 0.026 Rise time (ns) 10 Fall time (ns) 10 Iq (mA) 0.01 Input threshold TTL Channel input logic TTL Switch node voltage (V) -1 Driver configuration Dual, Single
Bootstrap supply voltage (max) (V) 100 Power switch MOSFET Input supply voltage (min) (V) 8 Input supply voltage (max) (V) 14 Peak output current (A) 1.8 Operating temperature range (°C) -40 to 125 Undervoltage lockout (typ) (V) 8 Rating Catalog Propagation delay time (µs) 0.026 Rise time (ns) 10 Fall time (ns) 10 Iq (mA) 0.01 Input threshold TTL Channel input logic TTL Switch node voltage (V) -1 Driver configuration Dual, Single
WSON (DPR) 10 16 mm² 4 x 4
  • Drives Both a High-Side and Low-Side N-Channel MOSFET
  • 1.8-A Peak Gate Drive Current
  • Bootstrap Supply Voltage Range up to 118-V DC
  • Integrated Bootstrap Diode
  • Single TTL Compatible Input
  • Programmable Turnon Delays (Dead Time)
  • Enable Input Pin
  • Fast Turnoff Propagation Delays (26 ns Typical)
  • Drives 1000 pF With 15-ns Rise and Fall Time
  • Supply Rail Undervoltage Lockout
  • Low Power Consumption
  • Package: Thermally Enhanced 10-Pin WSON
    (4 mm × 4 mm)
  • Drives Both a High-Side and Low-Side N-Channel MOSFET
  • 1.8-A Peak Gate Drive Current
  • Bootstrap Supply Voltage Range up to 118-V DC
  • Integrated Bootstrap Diode
  • Single TTL Compatible Input
  • Programmable Turnon Delays (Dead Time)
  • Enable Input Pin
  • Fast Turnoff Propagation Delays (26 ns Typical)
  • Drives 1000 pF With 15-ns Rise and Fall Time
  • Supply Rail Undervoltage Lockout
  • Low Power Consumption
  • Package: Thermally Enhanced 10-Pin WSON
    (4 mm × 4 mm)

The LM5105 is a high-voltage gate driver designed to drive both the high-side and low-side N–Channel MOSFETs in a synchronous buck or half-bridge configuration. The floating high-side driver is capable of working with rail voltages up to 100 V. The single control input is compatible with TTL signal levels and a single external resistor programs the switching transition dead time through tightly matched turnon delay circuits. A high-voltage diode is provided to charge the high-side gate-drive bootstrap capacitor. The robust level shift technology operates at high speed while consuming low power and provides clean output transitions. Undervoltage lockout disables the gate driver when either the low-side or the bootstrapped high-side supply voltage is below the operating threshold. The LM5105 is offered in the thermally enhanced WSON plastic package.

The LM5105 is a high-voltage gate driver designed to drive both the high-side and low-side N–Channel MOSFETs in a synchronous buck or half-bridge configuration. The floating high-side driver is capable of working with rail voltages up to 100 V. The single control input is compatible with TTL signal levels and a single external resistor programs the switching transition dead time through tightly matched turnon delay circuits. A high-voltage diode is provided to charge the high-side gate-drive bootstrap capacitor. The robust level shift technology operates at high speed while consuming low power and provides clean output transitions. Undervoltage lockout disables the gate driver when either the low-side or the bootstrapped high-side supply voltage is below the operating threshold. The LM5105 is offered in the thermally enhanced WSON plastic package.

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Documentación técnica

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Tipo Título Fecha
* Data sheet LM5105 100-V Half-Bridge Gate Driver With Programmable Dead Time datasheet (Rev. E) PDF | HTML 25 ago 2016
Application note Benefits and Use of Single Input Gate Drivers with Programmable Dead Time PDF | HTML 23 abr 2025
Application note Using Half-Bridge Gate Driver to Achieve 100% Duty Cycle for High Side FET PDF | HTML 25 mar 2024
Application note Challenges and Solutions for Half-Bridge Gate Drivers in Bidirectional DC-DC Converters PDF | HTML 24 ene 2024
Application note Bootstrap Circuitry Selection for Half Bridge Configurations (Rev. A) PDF | HTML 08 sep 2023
Application note Voltage Fed Full Bridge DC-DC & DC-AC Converter High-Freq Inverter Using C2000 (Rev. D) 07 abr 2021
Application note Implementing High-Side Switches Using Half-Bridge Gate Drivers for 48-V Battery. 12 may 2020
Application brief External Gate Resistor Selection Guide (Rev. A) 28 feb 2020
Application brief Understanding Peak IOH and IOL Currents (Rev. A) 28 feb 2020
Application brief Small Price Competitive 100-V Driver for 48-V BLDC Motor Drives 22 oct 2019
White paper Power Electronics in Motor Drives: Where is it? (Rev. A) 01 oct 2019
Application note Maximizing DC/DC converter designs with UCC27282 18 ene 2019
Application note UCC27282 Improving motor drive system robustness 11 ene 2019
More literature Fundamentals of MOSFET and IGBT Gate Driver Circuits (Replaces SLUP169) (Rev. A) 29 oct 2018

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Modelo de simulación

LM5105 PSpice Transient Model (Rev. A)

SNVM166A.ZIP (49 KB) - PSpice Model
Modelo de simulación

LM5105 TINA-TI Transient Reference Design

SNVM361.TSC (576 KB) - TINA-TI Reference Design
Modelo de simulación

LM5105 TINA-TI Transient Spice Model

SNVM362.ZIP (11 KB) - TINA-TI Spice Model
Modelo de simulación

LM5105 Unencrypted PSpice Transient Model

SNVMAC7.ZIP (2 KB) - PSpice Model
Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® para TI es un entorno de diseño y simulación que ayuda a evaluar la funcionalidad de los circuitos analógicos. Esta completa suite de diseño y simulación utiliza un motor de análisis analógico de Cadence®. Disponible sin ningún costo, PSpice para TI incluye una de las bibliotecas de modelos (...)
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
WSON (DPR) 10 Ultra Librarian

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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Soporte y capacitación

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