Inicio Gestión de la energía AC/DC & DC/DC controllers (external FET)

LM5177

ACTIVO

Controlador elevador-reductor síncrono de 4 interruptores con VIN amplia de 60 V y funcionamiento bi

Detalles del producto

Vin (min) (V) 2.8 Vin (max) (V) 60 Operating temperature range (°C) -40 to 125 Topology Buck-Boost Rating Catalog Vout (min) (V) 3.3 Vout (max) (V) 60 Iq (typ) (A) 0.00006 Duty cycle (max) (%) 100
Vin (min) (V) 2.8 Vin (max) (V) 60 Operating temperature range (°C) -40 to 125 Topology Buck-Boost Rating Catalog Vout (min) (V) 3.3 Vout (max) (V) 60 Iq (typ) (A) 0.00006 Duty cycle (max) (%) 100
HTSSOP (DCP) 38 62.08 mm² 9.7 x 6.4
  • Wide input range from 3.5 V to 60 V (85-V absolute maximum)
    • Minimum 2.8 V when V (BIAS) > 3.5 V
  • Output voltage from 3.3 V to 60 V
  • Low shutdown I Q of 3 µA
  • Low operating I Q of 60 µA
  • 3% reverse current limit accuracy for precise charging currents
  • Average input and output current monitor or limiter
  • Dynamic output voltage tracking for PWM or analog input signals
  • Power save mode (PSM) selectable for high light load efficiency
  • Two integrated high-voltage supply LDOs with automatic selection
  • 2-A peak current logic level gate driver
    • Integrated bootstrap diode
    • Bootstrap overvoltage and undervoltage protection
  • Fixed frequency across all operating modes (boost, buck-boost, buck)
    • Forced PWM mode selectable
    • Switching up to 600 kHz for small solution and component size
    • External clock synchronization
  • Spread spectrum operation selectable
  • Adjustable undervoltage protection
  • Hiccup overcurrent and short protection
  • Wide input range from 3.5 V to 60 V (85-V absolute maximum)
    • Minimum 2.8 V when V (BIAS) > 3.5 V
  • Output voltage from 3.3 V to 60 V
  • Low shutdown I Q of 3 µA
  • Low operating I Q of 60 µA
  • 3% reverse current limit accuracy for precise charging currents
  • Average input and output current monitor or limiter
  • Dynamic output voltage tracking for PWM or analog input signals
  • Power save mode (PSM) selectable for high light load efficiency
  • Two integrated high-voltage supply LDOs with automatic selection
  • 2-A peak current logic level gate driver
    • Integrated bootstrap diode
    • Bootstrap overvoltage and undervoltage protection
  • Fixed frequency across all operating modes (boost, buck-boost, buck)
    • Forced PWM mode selectable
    • Switching up to 600 kHz for small solution and component size
    • External clock synchronization
  • Spread spectrum operation selectable
  • Adjustable undervoltage protection
  • Hiccup overcurrent and short protection

The LM5177 is a four switch buck-boost controller. The device provides a regulated output voltage if the input voltage is higher, equal, or lower than the adjusted output voltage. In power safe mode, the device supports high efficiency with low output loads due to its low quiescence currents. The LM5177 runs at a fixed switching frequency, which can be set through the RT or SYNC pin. The switching frequency remains the same during buck, boost, and buck-boost operation. The integrated and optional average current monitor can help monitor and limit input and output current of the LM5177. This feature also supports charging backup power elements, like batteries or capacitors, with constant current (CC) and constant voltage (CV).

The LM5177 is a four switch buck-boost controller. The device provides a regulated output voltage if the input voltage is higher, equal, or lower than the adjusted output voltage. In power safe mode, the device supports high efficiency with low output loads due to its low quiescence currents. The LM5177 runs at a fixed switching frequency, which can be set through the RT or SYNC pin. The switching frequency remains the same during buck, boost, and buck-boost operation. The integrated and optional average current monitor can help monitor and limit input and output current of the LM5177. This feature also supports charging backup power elements, like batteries or capacitors, with constant current (CC) and constant voltage (CV).

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Documentación técnica

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Tipo Título Fecha
* Data sheet LM5177 60-V Wide VIN Bidirectional 4-Switch Buck-Boost Controller datasheet (Rev. D) PDF | HTML 26 jul 2023
Application note Parallel Operation of the Buck-Boost Converters Using LM5177 Buck-Boost Controller (Rev. A) PDF | HTML 27 feb 2024
Application brief A Simple Constant Voltage Regulation Using the MODE Pin (Rev. A) PDF | HTML 15 feb 2024
Application note Layout Optimization of 4-Switch Buck-Boost Converters PDF | HTML 05 sep 2023
Application brief Precise Current Limiter Over Wide Operation Voltages in Buck-Boost Converters PDF | HTML 05 sep 2023
User guide LM5177 Buck-Boost Controller Evaluation Module User's Guide (Rev. B) 27 abr 2023
Application brief Dynamic Current Tracking With the LM5177 4-Switch Buck Boost Controller 24 feb 2023
Application brief Constant Current Operation Using the Internal Current Limiter 27 ene 2023
Certificate LM5177EVM-HP EU RoHS Declaration of Conformity (DoC) 16 dic 2021

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.

Placa de evaluación

LM5177EVM-HP — Módulo de evaluación LM5177 con controlador reductor-elevador de cuatro interruptores

El LM5177EVM-HP demuestra un diseño flexible de reductor-elevador de alta alimentación que utiliza el controlador reductor-elevador LM5177 de amplia alimentación. El módulo de evaluación está configurado para funcionar con un rango de tensión de entrada de 4.2 V a 36 V y proporcionar una salida (...)
Guía del usuario: PDF
Herramienta de cálculo

SNVR519 LM5177 BuckBoost Quickstart Calculator Tool

LM5177 BuckBoost Quickstart Calculator Tool
Productos y hardware compatibles

Productos y hardware compatibles

Productos
AC/DC & DC/DC controllers (external FET)
LM5177 Controlador elevador-reductor síncrono de 4 interruptores con VIN amplia de 60 V y funcionamiento bi
Desarrollo de hardware
Placa de evaluación
LM5177EVM-HP Módulo de evaluación LM5177 con controlador reductor-elevador de cuatro interruptores
Disposición de la PCB

LM5177EVM-HP PCB Layout (Rev. A)

SNVR526A.ZIP (1766 KB)
Paquete Pasadores Descargar
HTSSOP (DCP) 38 Ver opciones

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

Soporte y capacitación

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