Inicio Administración de potencia Convertidores de CA/CC y CC/CC (FET integrado)

LM61495-Q1

ACTIVO

Convertidor reductor de 10 A para automoción optimizado para densidad de potencia y EMI baja

Detalles del producto

Rating Automotive Topology Buck Iout (max) (A) 10 Vin (max) (V) 36 Vin (min) (V) 3 Vout (max) (V) 34.2 Vout (min) (V) 1 Features Enable, Fixed soft start, Forced PWM, Frequency synchronization, Light-load efficiency, Overcurrent protection, Power good, Spread Spectrum, Synchronous rectification, UVLO fixed, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 5 Duty cycle (max) (%) 98 Type Converter
Rating Automotive Topology Buck Iout (max) (A) 10 Vin (max) (V) 36 Vin (min) (V) 3 Vout (max) (V) 34.2 Vout (min) (V) 1 Features Enable, Fixed soft start, Forced PWM, Frequency synchronization, Light-load efficiency, Overcurrent protection, Power good, Spread Spectrum, Synchronous rectification, UVLO fixed, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 5 Duty cycle (max) (%) 98 Type Converter
VQFN-HR (RPH) 16 15.75 mm² 4.5 x 3.5
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Input voltage range from 3V to 36V
  • RESET output with filter and delayed release
  • Designed for low EMI:
    • CISPR 25 class 5 compliant EVM
    • Pin-configurable spread spectrum
    • Adjustable SW node rise time
    • Above and below AM band operation: pin configurable 400kHz and 2.2MHz fixed or adjustable from 200kHz – 2.2MHz
    • Low EMI symmetrical pinout
    • Light load mode is pin-configurable for constant frequency or pulse frequency modulation (PFM)
  • High-efficiency design
    • 95% efficient for an 8A load
    • 5µA input current while unloaded in auto mode
    • < 1µA shutdown current (typical)
  • High power density
    • Built-in compensation, soft start, current limit, thermal shutdown, and UVLO
    • 4.5mm × 3.5mm wettable flank QFN package
    • ϴJA = 21.6°C/W, measured on LM61495RPHEVM
  • Pin-to-pin compatible with LM61480T-Q1 and LM61495T-Q1 for dual-side cooling providing enhanced thermal performance
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Input voltage range from 3V to 36V
  • RESET output with filter and delayed release
  • Designed for low EMI:
    • CISPR 25 class 5 compliant EVM
    • Pin-configurable spread spectrum
    • Adjustable SW node rise time
    • Above and below AM band operation: pin configurable 400kHz and 2.2MHz fixed or adjustable from 200kHz – 2.2MHz
    • Low EMI symmetrical pinout
    • Light load mode is pin-configurable for constant frequency or pulse frequency modulation (PFM)
  • High-efficiency design
    • 95% efficient for an 8A load
    • 5µA input current while unloaded in auto mode
    • < 1µA shutdown current (typical)
  • High power density
    • Built-in compensation, soft start, current limit, thermal shutdown, and UVLO
    • 4.5mm × 3.5mm wettable flank QFN package
    • ϴJA = 21.6°C/W, measured on LM61495RPHEVM
  • Pin-to-pin compatible with LM61480T-Q1 and LM61495T-Q1 for dual-side cooling providing enhanced thermal performance

The LM6x4xx-Q1 buck regulator family are automotive-focused regulators providing either fixed or an adjustable output voltage which can be set from 1 V to 95% of expected input voltage. These regulators operate under a wide input voltage range of 3 to 36V and has transient tolerance up to 42 V.

The family is designed for low EMI. The device incorporates pin selectable spread spectrum, and an adjustable SW node rise time. Dual Random Spread Spectrum (DRSS) frequency hopping is set to ±4% (typical), drastically reducing peak emissions through a combination of triangular and pseudorandom modulation, and includes advanced techniques to reduce output voltage ripple caused by spread spectrum modulation.

An open-drain RESET output, with filtering and delayed release, gives a true indication of system status. In auto mode the device automatically transitions between Fixed frequency Pulse Width Modulation (FPWM) and Pulse Frequency Modulation (PFM) modes of operation, allowing an unloaded current consumption of only 5 µA (typical). Electrical characteristics are specified over a junction temperature range of –40°C to +150°C.

The LM6x4xx-Q1 buck regulator family are automotive-focused regulators providing either fixed or an adjustable output voltage which can be set from 1 V to 95% of expected input voltage. These regulators operate under a wide input voltage range of 3 to 36V and has transient tolerance up to 42 V.

The family is designed for low EMI. The device incorporates pin selectable spread spectrum, and an adjustable SW node rise time. Dual Random Spread Spectrum (DRSS) frequency hopping is set to ±4% (typical), drastically reducing peak emissions through a combination of triangular and pseudorandom modulation, and includes advanced techniques to reduce output voltage ripple caused by spread spectrum modulation.

An open-drain RESET output, with filtering and delayed release, gives a true indication of system status. In auto mode the device automatically transitions between Fixed frequency Pulse Width Modulation (FPWM) and Pulse Frequency Modulation (PFM) modes of operation, allowing an unloaded current consumption of only 5 µA (typical). Electrical characteristics are specified over a junction temperature range of –40°C to +150°C.

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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

LM61495RPHEVM — Módulo de evaluación LM61495-Q1 de convertidor reductor síncrono de 10 A y 400 kHz

El módulo de evaluación (EVM) LM61495RPHEVM es un circuito totalmente ensamblado y probado para evaluar el convertidor reductor sincrónico LM61495-Q1.  El LM61495-Q1 proporciona una eficiencia excepcional, una I.Q baja y una EMI baja en una solución de tamaño pequeño.
Guía del usuario: PDF | HTML
Modelo de simulación

LM61495-Q1 PSpice Transient Model (Rev. A)

SNVMC15A.ZIP (224 KB) - PSpice Model
Herramienta de cálculo

SNVR498 LM61495-Q1 Design Tool

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Convertidores de CA/CC y CC/CC (FET integrado)
LM61480-Q1 Convertidor buck de 8 A, automotriz, optimizado para densidad de potencia y EMI baja LM61495-Q1 Convertidor reductor de 10 A para automoción optimizado para densidad de potencia y EMI baja LM62460-Q1 Convertidor reductor de 6 A para automoción optimizado para densidad de potencia y EMI baja
Diseños de referencia

PMP23241 — Convertidor buck-boost inversor síncrono con diseño de referencia de salida ajustable

Este diseño de referencia utiliza el regulador buck síncrono LM61495-Q1. Este dispositivo cuenta con transistores de efecto de campo (FET) internos superiores e inferiores, que se configuran como un convertidor buck-boost inversor síncrono para proporcionar una salida ajustable de entre –7.5 V y (...)
Test report: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN-HR (RPH) 16 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

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

Soporte y capacitación

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