Inicio Gestión de la energía Convertidores de CA/CC y CC/CC (FET integrado)

LM25180-Q1

ACTIVO

Convertidor automotriz de retorno PSR con entrada de tensión de 42 V y MOSFET de potencia integra

Detalles del producto

Rating Automotive Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Flyback Type Converter (Integrated Switch) Iout (max) (A) 1.5 Vin (min) (V) 4.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 12 Switching frequency (max) (kHz) 350 Features Enable, Integrated Switch, Light load efficiency, Pre-bias soft start, UVLO adjustable Control mode Peak current mode Duty cycle (max) (%) 82 Switch current limit (typ) (A) 1.5
Rating Automotive Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Flyback Type Converter (Integrated Switch) Iout (max) (A) 1.5 Vin (min) (V) 4.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 12 Switching frequency (max) (kHz) 350 Features Enable, Integrated Switch, Light load efficiency, Pre-bias soft start, UVLO adjustable Control mode Peak current mode Duty cycle (max) (%) 82 Switch current limit (typ) (A) 1.5
WSON (NGU) 8 16 mm² 4 x 4
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to 125°C ambient temperature range
  • Designed for reliable and rugged applications
    • Wide input voltage range of 4.5 V to 42 V
    • Robust solution with only one component crossing the isolation barrier
    • ±1.5% total output regulation accuracy
    • Optional VOUT temperature compensation
    • 6-ms internal or programmable soft start
    • Input UVLO and thermal shutdown protection
    • Hiccup-mode overcurrent fault protection
    • –40°C to +150°C junction temperature range
  • Integration reduces solution size and cost
    • Integrated 65-V, 0.4-Ω power MOSFET
    • No opto-coupler or transformer auxiliary winding required for VOUT regulation
    • Low EMI operation to meet CISPR 25
  • High efficiency PSR flyback operation
    • Quasi-resonant switching in boundary conduction mode (BCM) at heavy load
    • External bias option for improved efficiency
    • Single- and multi-output implementations
  • Create a custom regulator design using WEBENCH® Power Designer
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to 125°C ambient temperature range
  • Designed for reliable and rugged applications
    • Wide input voltage range of 4.5 V to 42 V
    • Robust solution with only one component crossing the isolation barrier
    • ±1.5% total output regulation accuracy
    • Optional VOUT temperature compensation
    • 6-ms internal or programmable soft start
    • Input UVLO and thermal shutdown protection
    • Hiccup-mode overcurrent fault protection
    • –40°C to +150°C junction temperature range
  • Integration reduces solution size and cost
    • Integrated 65-V, 0.4-Ω power MOSFET
    • No opto-coupler or transformer auxiliary winding required for VOUT regulation
    • Low EMI operation to meet CISPR 25
  • High efficiency PSR flyback operation
    • Quasi-resonant switching in boundary conduction mode (BCM) at heavy load
    • External bias option for improved efficiency
    • Single- and multi-output implementations
  • Create a custom regulator design using WEBENCH® Power Designer

The LM25180-Q1 is a primary-side regulated (PSR) flyback converter with high efficiency over a wide input voltage range of 4.5 V to 42 V. The isolated output voltage is sampled from the primary-side flyback voltage, eliminating the need for an optocoupler, voltage reference, or third winding from the transformer for output voltage regulation. The high level of integration results in a simple, reliable and high-density design with only one component crossing the isolation barrier. Boundary conduction mode (BCM) switching enables a compact magnetic solution and better than ±1.5% load and line regulation performance. An integrated 65-V power MOSFET provides output power up to 7 W with enhanced headroom for line transients.

The LM25180-Q1 converter simplifies implementation of isolated DC/DC supplies with optional features to optimize performance for the target end equipment. The output voltage is set by one resistor, while an optional resistor improves output voltage accuracy by negating the thermal coefficient of the flyback diode voltage drop. Additional features include an internally-fixed or externally-programmable soft start, optional bias supply connection for higher efficiency, precision enable input with hysteresis for adjustable line UVLO, hiccup-mode overload protection, and thermal shutdown protection with automatic recovery.

The LM25180-Q1 is qualified to automotive AEC-Q100 grade 1 and is available in 8-pin WSON package with 0.8-mm pin pitch and wettable flanks.

The LM25180-Q1 is a primary-side regulated (PSR) flyback converter with high efficiency over a wide input voltage range of 4.5 V to 42 V. The isolated output voltage is sampled from the primary-side flyback voltage, eliminating the need for an optocoupler, voltage reference, or third winding from the transformer for output voltage regulation. The high level of integration results in a simple, reliable and high-density design with only one component crossing the isolation barrier. Boundary conduction mode (BCM) switching enables a compact magnetic solution and better than ±1.5% load and line regulation performance. An integrated 65-V power MOSFET provides output power up to 7 W with enhanced headroom for line transients.

The LM25180-Q1 converter simplifies implementation of isolated DC/DC supplies with optional features to optimize performance for the target end equipment. The output voltage is set by one resistor, while an optional resistor improves output voltage accuracy by negating the thermal coefficient of the flyback diode voltage drop. Additional features include an internally-fixed or externally-programmable soft start, optional bias supply connection for higher efficiency, precision enable input with hysteresis for adjustable line UVLO, hiccup-mode overload protection, and thermal shutdown protection with automatic recovery.

The LM25180-Q1 is qualified to automotive AEC-Q100 grade 1 and is available in 8-pin WSON package with 0.8-mm pin pitch and wettable flanks.

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Documentación técnica

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

LM5180EVM-DUAL — Módulo de evaluación de convertidor de retorno PSR de salida doble con VIN amplia

The LM5180EVM-DUAL evaluation module (EVM) is designed to showcase the performance of the LM5180 PSR flyback converter with wide input voltage range. The design is packaged in a miniature footprint with low component count. It operates over a wide input voltage range of 10 V to 65 V to deliver a (...)
Guía del usuario: PDF
Placa de evaluación

LM5180EVM-S05 — Módulo de evaluación de convertidor de retorno PSR de salida única con VIN amplia

The LM5180EVM-S05 evaluation module (EVM) is designed to showcase the performance of the LM5180 PSR flyback converter with wide input voltage range. The design is packaged in a miniature footprint with low component count. It operates over a wide input voltage range of 10 V to 65 V to deliver a (...)
Guía del usuario: PDF
Herramienta de cálculo

LM25180DESIGN-CALC LM25180 Flyback Converter Quickstart Design Tool

Welcome to the LM25180 quickstart design tool. This standalone tool facilitates and assists the power supply engineer with the design of a DC/DC flyback regulator based on the LM25180 PSR flyback converter. As such, the user can expeditiously arrive at an optimized design to meet the application (...)

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Convertidores de CA/CC y CC/CC (FET integrado)
LM25180 Convertidor de retorno no opto con entrada de tensión de 42 V con MOSFET integrado de 65 V y 1.5 A LM25180-Q1 Convertidor automotriz de retorno PSR con entrada de tensión de 42 V y MOSFET de potencia integra
Desarrollo de hardware
Placa de evaluación
LM5180EVM-DUAL Módulo de evaluación de convertidor de retorno PSR de salida doble con VIN amplia LM5180EVM-S05 Módulo de evaluación de convertidor de retorno PSR de salida única con VIN amplia
Software
Herramienta de cálculo
LM25180DESIGN-CALC Herramienta de diseño de inicio rápido de retorno LM25180-PSR
Herramienta de cálculo

LM25183-LM25184DESIGN-CALC LM25183 and LM25184 Quickstart Design Tool

Welcome to the LM25183 and LM25184 quickstart design tool. This standalone tool facilitates and assists the power-supply engineer with the design of a DC/DC flyback regulator based on the LM25183 and LM25184 PSR flyback converter. As such, the user can expeditiously arrive at an optimized design (...)
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Convertidores de CA/CC y CC/CC (FET integrado)
LM25180-Q1 Convertidor automotriz de retorno PSR con entrada de tensión de 42 V y MOSFET de potencia integra LM25183 Convertidor de retorno no opto con entrada de tensión de 42 V con MOSFET integrado de 65 V y 2.5 A LM25183-Q1 Convertidor automotriz de retorno no opto con entrada de tensión de 42 V y MOSFET integrado de 65 V LM25184 Convertidor de retorno no opto con entrada de tensión de 42 V con MOSFET integrado de 65 V y 4.1 A LM25184-Q1 Convertidor automotriz de retorno no opto con entrada de tensión de 42 V y MOSFET integrado de 65 V
Desarrollo de hardware
Placa de evaluación
LM25184EVM-S12 Módulo de evaluación de convertidor de retorno PSR de salida única con entrada de tensión amplia de
Software
Herramienta de cálculo
LM25183-LM25184DESIGN-CALC Herramientas de diseño de inicio rápido de retorno LM25183 y LM25184 PSR
Disposición de la PCB

LM5180EVM-S05 PCB Layout Files

SNVC233.ZIP (1903 KB)
Disposición de la PCB

LM5180EVM-DUAL PCB Layout Files

SNVR472.ZIP (3416 KB)
Diseños de referencia

PMP31182 — Diseños de referencia de fuentes de alimentación de polarización aislada que utilizan cuatro topolog

Este diseño de referencia muestra cuatro diseños de fuentes de alimentación de polarización aislada que utilizan diferentes topologías como retorno de PSR, inserción y extracción, LLC resonante y módulo CC-CC aislado. Estas topologías proporcionan beneficios específicos, pero al mismo tiempo, (...)
Test report: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
WSON (NGU) 8 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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