Inicio Gestión de la energía Controladores CA/CC y CC/CC (FET externo)

LM51561H-Q1

ACTIVO

Controlador elevador, de retorno y SEPIC no síncrono con VIN amplia de 2.2 MHz, amplio espectro y Hi

Detalles del producto

Vin (min) (V) 1.5 Vin (max) (V) 60 Operating temperature range (°C) -40 to 150 Control mode current mode Topology Boost, Flyback, SEPIC Rating Automotive Vout (min) (V) 1.5 Vout (max) (V) 300 Features Adjustable current limit, Enable, Frequency synchronization, Hiccup mode protection, Light Load Efficiency, Nonsynchronous rectification, Power good, Spread Spectrum, UVLO adjustable Iq (typ) (µA) 490 Duty cycle (max) (%) 93 TI functional safety category Functional Safety-Capable
Vin (min) (V) 1.5 Vin (max) (V) 60 Operating temperature range (°C) -40 to 150 Control mode current mode Topology Boost, Flyback, SEPIC Rating Automotive Vout (min) (V) 1.5 Vout (max) (V) 300 Features Adjustable current limit, Enable, Frequency synchronization, Hiccup mode protection, Light Load Efficiency, Nonsynchronous rectification, Power good, Spread Spectrum, UVLO adjustable Iq (typ) (µA) 490 Duty cycle (max) (%) 93 TI functional safety category Functional Safety-Capable
HTSSOP (PWP) 14 32 mm² 5 x 6.4
  • AEC-Q100 Qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C TA
    • Maximum operating temperature 150°C TJ
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Suited for wide input operating range car battery applications
    • 3.5-V to 60-V Operating range (65-V abs max)
    • 2.97-V to 16-V when BIAS = VCC
    • Minimum boost supply voltage 1.5 V when BIAS ≥ 3.5 V
    • Input transient protection up to 65 V
    • Minimized battery drain
      • Low shutdown current ( IQ ≤ 2.6 µA )
      • Low operating current ( IQ ≤ 490 µA )
  • Small solution size and low cost
    • Maximum switching frequency of 2.2 MHz
    • Integrated error amplifier allows primary-side regulation without optocoupler (flyback)
    • Minimized undershoot during cranking (start-stop application)
  • EMI mitigation
    • Selectable dual random spread spectrum
  • Higher efficiency with low-power dissipation
    • 100-mV ±7% accurate current limit threshold
    • Strong 1.5-A peak standard MOSFET driver
    • Supports external VCC supply
  • Avoid AM band interference and crosstalk
    • Optional clock synchronization
    • Dynamically programmable switching frequency from 100 kHz to 2.2 MHz
  • Integrated protection features
    • Constant peak current limiting over input voltage
    • Optional hiccup mode overload protection (see the Device Comparison Table)
    • Programmable line UVLO
    • OVP protection
    • Thermal shutdown
  • Accurate ±1% accuracy feedback reference
  • Programmable extra slope compensation
  • Adjustable soft start
  • PGOOD indicator
  • 14-Pin HTSSOP package (5.0 mm × 4.4 mm)
  • Create a custom design using the LM5156xH-Q1 with the WEBENCH power designer
  • AEC-Q100 Qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C TA
    • Maximum operating temperature 150°C TJ
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Suited for wide input operating range car battery applications
    • 3.5-V to 60-V Operating range (65-V abs max)
    • 2.97-V to 16-V when BIAS = VCC
    • Minimum boost supply voltage 1.5 V when BIAS ≥ 3.5 V
    • Input transient protection up to 65 V
    • Minimized battery drain
      • Low shutdown current ( IQ ≤ 2.6 µA )
      • Low operating current ( IQ ≤ 490 µA )
  • Small solution size and low cost
    • Maximum switching frequency of 2.2 MHz
    • Integrated error amplifier allows primary-side regulation without optocoupler (flyback)
    • Minimized undershoot during cranking (start-stop application)
  • EMI mitigation
    • Selectable dual random spread spectrum
  • Higher efficiency with low-power dissipation
    • 100-mV ±7% accurate current limit threshold
    • Strong 1.5-A peak standard MOSFET driver
    • Supports external VCC supply
  • Avoid AM band interference and crosstalk
    • Optional clock synchronization
    • Dynamically programmable switching frequency from 100 kHz to 2.2 MHz
  • Integrated protection features
    • Constant peak current limiting over input voltage
    • Optional hiccup mode overload protection (see the Device Comparison Table)
    • Programmable line UVLO
    • OVP protection
    • Thermal shutdown
  • Accurate ±1% accuracy feedback reference
  • Programmable extra slope compensation
  • Adjustable soft start
  • PGOOD indicator
  • 14-Pin HTSSOP package (5.0 mm × 4.4 mm)
  • Create a custom design using the LM5156xH-Q1 with the WEBENCH power designer

The LM5156xH-Q1 (LM5156H-Q1 and LM51561H-Q1) device is a wide input range, non-synchronous boost controller that uses peak current mode control. The device can be used in boost, SEPIC, and flyback topologies.

The device can start up from a 1-cell battery with a minimum of 2.97 V if the BIAS pin is connected to the VCC pin. It can operate with the input supply voltage as low as 1.5 V if the BIAS pin is greater than 3.5 V.

The LM5156xH-Q1 (LM5156H-Q1 and LM51561H-Q1) device is a wide input range, non-synchronous boost controller that uses peak current mode control. The device can be used in boost, SEPIC, and flyback topologies.

The device can start up from a 1-cell battery with a minimum of 2.97 V if the BIAS pin is connected to the VCC pin. It can operate with the input supply voltage as low as 1.5 V if the BIAS pin is greater than 3.5 V.

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Documentación técnica

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Tipo Título Fecha
* Data sheet LM5156xH-Q1 2.2-MHz Wide VIN 65-V Non-synchronous Boost/SEPIC/Flyback Controller with 150°C Maximum Junction Temperature datasheet PDF | HTML 23 sep 2020
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 30 abr 2024
White paper Isolated Bias Power Supply Architecture for HEV and EV Traction Inverters PDF | HTML 11 oct 2023
Application note How to Design a Boost Converter Using the LM5156 (Rev. A) PDF | HTML 14 nov 2022
Functional safety information LM34966-Q1, LM5156x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution (Rev. C) PDF | HTML 28 abr 2021
EVM User's guide LM5156HEVM-FLY Evaluation Module PDF | HTML 15 sep 2020

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

LM5156HEVM-FLY — Módulo de evaluación LM5156H del controlador de retorno

The LM5156HEVM-FLY evaluation module showcases the features and performance of the LM51561 (TSSOP package) as wide input non-synchronous flyback controller. The standard configuration is designed to provide a regulated output of 5V at 4A from an input of 18V to 36V, switching at 250 kHz. This (...)
Guía del usuario: PDF | HTML
Herramienta de cálculo

SNVC240 LM5155/56 Flyback Controller Quick Start Calculator

LM5155/56 Flyback Controller Quick Start Calculator
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Controladores CA/CC y CC/CC (FET externo)
LM5155 Controlador elevador no síncrono MOSFET de 1.5 A y VIN amplia de 2.2 MHz LM5155-Q1 Controlador elevador no síncrono MOSFET de 1.5 A y VIN amplia de 2.2 MHz con certificación AEC-Q100 LM51551 Controlador elevador, de retorno y SEPIC no síncrono con VIN amplia de 2.2 MHz y Hiccup LM51551-Q1 Controlador elevador no síncrono MOSFET de 1.5 A y VIN amplia de 2.2 MHz con protección de modo Hicc LM5156 Controlador elevador, de retorno y SEPIC no síncrono con VIN amplia de 2.2 MHz y amplio espectro ale LM5156-Q1 Controlador elevador, de retorno y SEPIC no síncrono con VIN amplia de 2.2 MHz y amplio espectro ale LM51561 Controlador elevador, SEPIC y de retorno no síncrono con entrada amplia de 2.2 MHz y amplio espectro LM51561-Q1 Controlador elevador, de retorno y SEPIC no síncrono con VIN amplia de 2.2 MHz, amplio espectro y Hi LM51561H Controlador elevador, de retorno y SEPIC no síncrono con VIN amplia de 2.2 MHz, amplio espectro y Hi LM51561H-Q1 Controlador elevador, de retorno y SEPIC no síncrono con VIN amplia de 2.2 MHz, amplio espectro y Hi LM5156H Controlador elevador, de retorno y SEPIC no síncrono con VIN amplia de 2.2 MHz y amplio espectro ale LM5156H-Q1 Controlador elevador, de retorno y SEPIC no síncrono con VIN amplia de 2.2 MHz y amplio espectro ale
Desarrollo de hardware
Placa de evaluación
LM5155EVM-FLY Módulo de evaluación LM5155 del controlador de retorno LM5156HEVM-FLY Módulo de evaluación LM5156H del controlador de retorno
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HTSSOP (PWP) 14 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

Soporte y capacitación

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