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LM5127-Q1

ACTIVO

Controlador elevador y reductor triple con Vin amplia de 42 V para aplicaciones de automoción

Detalles del producto

Regulated outputs (#) 3 Vin (min) (V) 0.8 Vin (max) (V) 42 Vout (min) (V) 0.8 Vout (max) (V) 42 Iout (max) (A) 30 TI functional safety category Functional Safety-Capable Configurability Hardware configurable, User programmable Features Enable, Overcurrent protection, Overvoltage protection, Power good, Thermal shutdown Rating Automotive Operating temperature range (°C) -40 to 150 Step-down DC/DC controller 2 Step-up DC/DC controller 1 Iq (typ) (mA) 3 Switching frequency (max) (kHz) 2200 Shutdown current (ISD) (typ) (µA) 2.2
Regulated outputs (#) 3 Vin (min) (V) 0.8 Vin (max) (V) 42 Vout (min) (V) 0.8 Vout (max) (V) 42 Iout (max) (A) 30 TI functional safety category Functional Safety-Capable Configurability Hardware configurable, User programmable Features Enable, Overcurrent protection, Overvoltage protection, Power good, Thermal shutdown Rating Automotive Operating temperature range (°C) -40 to 150 Step-down DC/DC controller 2 Step-up DC/DC controller 1 Iq (typ) (mA) 3 Switching frequency (max) (kHz) 2200 Shutdown current (ISD) (typ) (µA) 2.2
VQFN (RGZ) 48 49 mm² 7 x 7
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Suited for various architectures and scalable
    • Triple-output synchronous controllers
    • Flexible topology
      • CH1: boost / buck topology
      • CH2, CH3: two single phase bucks / dual-phase interleaved buck topology
    • Enable pin and PGOOD indicator per channel
    • Optional low IQ battery monitor
  • Wide operating range for automotive applications
    • 3.8-V to 42-V input operating range
    • Minimum boost input 0.8 V when BIAS ≥ 3.8 V
    • Boost output: adjustable up to 42 V
    • Buck output: fixed 3.3 V, 5 V, or adj. 0.8 - 42 V
    • Bypass operation when VSUPPLY>VLOAD (boost)
    • LDO operation when VSUPPLY ≈ VLOAD (buck)
  • Minimized battery drain
    • Shutdown current ≤ 2.8 µA
    • Automatic transition to low-IQ sleep mode
    • Battery drain in sleep
      • IQ≤ 14 µA when 3.3-V buck on
      • IQ≤ 22 µA when 3.3-V and 5-V bucks on
      • IQ≤ 32 µA when 3.3-V, 5-V bucks on and boost in bypass
    • High efficiency using strong 5-V drivers
    • Dual input VCC and VDD regulators
  • Small and cost-effective solution
    • Maximum switching frequency 2.2 MHz
    • Internal boot diode (boost)
    • Constant peak current limit
    • Supports DCR inductor current sensing
    • QFN-48 with wettable flanks
  • Avoid AM band interference and crosstalk
    • Optional clock synchronization
    • Switching frequency from 100 kHz to 2.2 MHz
    • Selectable switching mode (FPWM, diode emulation, and skip mode)
  • EMI mitigation
    • Optional programmable spread spectrum
  • Programmability and flexibility
    • Programmable wake-up and sleep threshold
    • Dynamic switching frequency programming
    • Adjustable soft start time
    • Adjustable output using 0.8 V ±1% reference
    • Adaptive dead-time control
  • Integrated protection features
    • Overcurrent protection
      • Cycle-by-cycle peak current limit
      • Optional hiccup mode protection (buck)
      • Optional latch-off mode protection (buck)
    • Overvoltage protection
    • HB-SW short protection (boost)
    • Thermal shutdown
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Suited for various architectures and scalable
    • Triple-output synchronous controllers
    • Flexible topology
      • CH1: boost / buck topology
      • CH2, CH3: two single phase bucks / dual-phase interleaved buck topology
    • Enable pin and PGOOD indicator per channel
    • Optional low IQ battery monitor
  • Wide operating range for automotive applications
    • 3.8-V to 42-V input operating range
    • Minimum boost input 0.8 V when BIAS ≥ 3.8 V
    • Boost output: adjustable up to 42 V
    • Buck output: fixed 3.3 V, 5 V, or adj. 0.8 - 42 V
    • Bypass operation when VSUPPLY>VLOAD (boost)
    • LDO operation when VSUPPLY ≈ VLOAD (buck)
  • Minimized battery drain
    • Shutdown current ≤ 2.8 µA
    • Automatic transition to low-IQ sleep mode
    • Battery drain in sleep
      • IQ≤ 14 µA when 3.3-V buck on
      • IQ≤ 22 µA when 3.3-V and 5-V bucks on
      • IQ≤ 32 µA when 3.3-V, 5-V bucks on and boost in bypass
    • High efficiency using strong 5-V drivers
    • Dual input VCC and VDD regulators
  • Small and cost-effective solution
    • Maximum switching frequency 2.2 MHz
    • Internal boot diode (boost)
    • Constant peak current limit
    • Supports DCR inductor current sensing
    • QFN-48 with wettable flanks
  • Avoid AM band interference and crosstalk
    • Optional clock synchronization
    • Switching frequency from 100 kHz to 2.2 MHz
    • Selectable switching mode (FPWM, diode emulation, and skip mode)
  • EMI mitigation
    • Optional programmable spread spectrum
  • Programmability and flexibility
    • Programmable wake-up and sleep threshold
    • Dynamic switching frequency programming
    • Adjustable soft start time
    • Adjustable output using 0.8 V ±1% reference
    • Adaptive dead-time control
  • Integrated protection features
    • Overcurrent protection
      • Cycle-by-cycle peak current limit
      • Optional hiccup mode protection (buck)
      • Optional latch-off mode protection (buck)
    • Overvoltage protection
    • HB-SW short protection (boost)
    • Thermal shutdown

The LM5127-Q1 is a full featured, wide input range three channel DC/DC controller which supports flexible topology (Boost/Buck) with peak current mode control. The device is designed as an integrated one-chip solution for the front-stage power supply in automotive infotainment, cluster, body control as well as ADAS systems. (continue on next page)

The LM5127-Q1 is a full featured, wide input range three channel DC/DC controller which supports flexible topology (Boost/Buck) with peak current mode control. The device is designed as an integrated one-chip solution for the front-stage power supply in automotive infotainment, cluster, body control as well as ADAS systems. (continue on next page)

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Documentación técnica

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Tipo Título Fecha
* Data sheet LM5127-Q1 2.2-MHz Wide VIN Automotive Front-stage Multi-rail DC/DC datasheet (Rev. A) PDF | HTML 17 dic 2020
EVM User's guide LM5127EVM-FLEX Evaluation Module (Rev. A) PDF | HTML 16 dic 2020
Functional safety information LM5127-Q1 Functional Safety, FIT Rate and Failure Mode Distribution PDF | HTML 11 dic 2020
Certificate LM5127EVM-FLEX EU RoHS Declaration of Conformity (DoC) (Rev. A) 25 nov 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

LM5127EVM-FLEX — Módulo de evaluación LM5127 de topología flexible

The LM5127EVM-FLEX showcases the features and performance of the LM5127-Q1 when configured with channel 1 as a pre-boost, and channel 2 and channel 3 configured as independent buck controllers. The input voltage range is 3V to 42V. The pre-boost can operate down to 3V during input transients, (...)
Guía del usuario: PDF | HTML
Modelo de simulación

LM5127-Q1 Boost PSpice Average Model

SLVMD93.ZIP (65 KB) - PSpice Model
Modelo de simulación

LM5127-Q1 Boost PSpice Transient Model

SLVMD97.ZIP (132 KB) - PSpice Model
Modelo de simulación

LM5127-Q1 Buck PSpice Average Model

SLVMD95.ZIP (62 KB) - PSpice Model
Modelo de simulación

LM5127-Q1 Buck PSpice Transient Model

SLVMD96.ZIP (114 KB) - PSpice Model
Modelo de simulación

LM5127-Q1 Dual Buck PSpice Average Model

SLVMD94.ZIP (69 KB) - PSpice Model
Modelo de simulación

LM5127-Q1 Dual Buck PSpice Transient Model

SLVMD98.ZIP (156 KB) - PSpice Model
Herramienta de cálculo

SLVRBH2 LM5127-Q1 Controller Quick Start Calculator

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Circuitos integrados multicanal (PMIC)
LM5127-Q1 Controlador elevador y reductor triple con Vin amplia de 42 V para aplicaciones de automoción
Diseños de referencia

PMP23194 — Diseño de referencia de tres salidas para sistemas ADAS de automoción que incluye alimentación para

Este diseño de referencia proporciona alimentación a los sistemas avanzados de asistencia al conductor (ADAS) automotrices para alimentar las cámaras (8 V), las comunicaciones de la red de área de controlador (CAN) (5 V) y el procesador principal (3.3 V). Funciona en toda la gama automotriz, (...)
Test report: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RGZ) 48 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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