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

LM5141-Q1

ACTIVO

Controlador reductor síncrono con entrada amplia de 2.2 MHz y baja IQ para automoción

Haga su pedido ahora
Hoja de datos

LM5141-Q1

ACTIVO
Hoja de datos Haga su pedido ahora

Detalles del producto

Vin (min) (V) 3.8 Vin (max) (V) 65 Iout (max) (A) 30 Operating temperature range (°C) -40 to 150 Control mode current mode Rating Automotive Vout (min) (V) 1.5 Vout (max) (V) 15 Iq (typ) (A) 0.000035 Duty cycle (max) (%) 78
Vin (min) (V) 3.8 Vin (max) (V) 65 Iout (max) (A) 30 Operating temperature range (°C) -40 to 150 Control mode current mode Rating Automotive Vout (min) (V) 1.5 Vout (max) (V) 15 Iq (typ) (A) 0.000035 Duty cycle (max) (%) 78
VQFN (RGE) 24 16 mm² 4 x 4
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • VIN: 3.8 V to 65 V (70 V Absolute Maximum)
  • Output: Fixed 3.3 V, 5 V, or Adjustable From
    1.5 V to 15 V with ±0.8% Accuracy
  • Fixed 2.2-MHz or 440-kHz Switching Frequency with ±5% Accuracy
  • High-Side and Low-Side Gate Drive With Slew-Rate Control
  • Optional Frequency Shift by Varying an Analog Voltage or RT Resistor
  • Optional Synchronization to an External Clock
  • Optional Spread Spectrum
  • Shutdown Mode IQ: 10 µA Typical
  • Low Standby Mode IQ: 35 µA Typical
  • 75-mV Current Limit Threshold with ±0.9% Accuracy
  • External Resistor or DCR Current Sensing
  • Output Enable Logic Input
  • Hiccup Mode for Sustained Overload
  • Power-Good Indication Output
  • Selectable Diode Emulation or Forced Pulse-Width Modulation
  • 24-pin VQFN Package With Wettable Flanks
  • Create a Custom Design Using the LM5141-Q1 With the WEBENCH® Power Designer
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • VIN: 3.8 V to 65 V (70 V Absolute Maximum)
  • Output: Fixed 3.3 V, 5 V, or Adjustable From
    1.5 V to 15 V with ±0.8% Accuracy
  • Fixed 2.2-MHz or 440-kHz Switching Frequency with ±5% Accuracy
  • High-Side and Low-Side Gate Drive With Slew-Rate Control
  • Optional Frequency Shift by Varying an Analog Voltage or RT Resistor
  • Optional Synchronization to an External Clock
  • Optional Spread Spectrum
  • Shutdown Mode IQ: 10 µA Typical
  • Low Standby Mode IQ: 35 µA Typical
  • 75-mV Current Limit Threshold with ±0.9% Accuracy
  • External Resistor or DCR Current Sensing
  • Output Enable Logic Input
  • Hiccup Mode for Sustained Overload
  • Power-Good Indication Output
  • Selectable Diode Emulation or Forced Pulse-Width Modulation
  • 24-pin VQFN Package With Wettable Flanks
  • Create a Custom Design Using the LM5141-Q1 With the WEBENCH® Power Designer

The LM5141-Q1 is a synchronous buck controller, intended for high voltage wide VIN step-down converter applications. The control method is peak current mode control. Current mode control provides inherent line feed-forward, cycle-by-cycle current limiting, and ease-of-loop compensation. The LM5141-Q1 features slew rate control to simplify the compliance with CISPR and automotive EMI requirements.

The LM5141-Q1 has two selectable switching frequencies: 2.2 MHz and 440 kHz. Gate drivers with slew rate Control that can be adjusted to reduce EMI.

In light or no-load conditions, the LM5141-Q1 operates in skip cycle mode for improved low power efficiency. The LM5141-Q1 has a high voltage bias regulator with automatic switch-over to an external bias to reduce the IQ current from VIN. Additional features include frequency synchronization, cycle-by-cycle current limit, hiccup mode fault protection for sustained overload, and power good output.

The LM5141-Q1 is a synchronous buck controller, intended for high voltage wide VIN step-down converter applications. The control method is peak current mode control. Current mode control provides inherent line feed-forward, cycle-by-cycle current limiting, and ease-of-loop compensation. The LM5141-Q1 features slew rate control to simplify the compliance with CISPR and automotive EMI requirements.

The LM5141-Q1 has two selectable switching frequencies: 2.2 MHz and 440 kHz. Gate drivers with slew rate Control that can be adjusted to reduce EMI.

In light or no-load conditions, the LM5141-Q1 operates in skip cycle mode for improved low power efficiency. The LM5141-Q1 has a high voltage bias regulator with automatic switch-over to an external bias to reduce the IQ current from VIN. Additional features include frequency synchronization, cycle-by-cycle current limit, hiccup mode fault protection for sustained overload, and power good output.

open-in-new Buscar otro/a AC/DC & DC/DC controllers (external FET)
Descargar Ver vídeo con transcripción Video

Documentación técnica

star =Principal documentación para este producto seleccionada por TI
No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 12
Tipo Título Fecha
* Data sheet LM5141-Q1 Wide Input Range Synchronous Buck Controller datasheet (Rev. D) PDF | HTML 18 dic 2017
Functional safety information LM25141-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) PDF | HTML 10 may 2022
Functional safety information LM5141-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 05 abr 2022
E-book An Engineer’s Guide to Low EMI in DC/DC Regulators 21 abr 2021
White paper Valuing wide VIN, low EMI synchronous buck circuits for cost-driven, demanding a (Rev. A) 10 abr 2019
White paper An overview of radiated EMI specifications for power supplies 05 jun 2018
White paper An overview of conducted EMI specifications for power supplies 01 feb 2018
EVM User's guide LM5141-Q1 EVM User’s Guide (Rev. A) 10 ene 2018
Application brief Improve DC/DC Regulator EMI for Free with Optimized Power Stage Layout 13 nov 2017
Test report PMP15019 Test Results 28 feb 2017
Analog Design Journal Designing the front-end DC/DC conversion stage to withstand automotive transient 18 ene 2017
Analog Design Journal Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics 21 jul 2016

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

LM5141QRGEVM — Módulo de evaluación LM5141QRG de convertidor reductor síncrono

The LM5141QRGEVM evaluation board provides a fully functional buck power supply, employing peak current mode control. The evaluation board provides a 5.0V @ 5A. The nonomal input voltage range is 8V-18V.
Guía del usuario: PDF
No disponible en TI.com
Modelo de simulación

LM5141-Q1 and LM25141-Q1 PSpice Transient Model (Rev. A)

SNVMAU4A.ZIP (123 KB) - PSpice Model
Descargar
Herramienta de cálculo

LM5141DESIGN-CALC — LM5141-Q1 controller quickstart design tool

Welcome to the LM5141-Q1 quickstart design tool. This standalone tool facilitates and assists the power supply engineer with design of a DC/DC buck regulator based on the LM5141-Q1 65-V synchronous buck DC/DC controller with low IQ. As such, the user can expeditiously arrive at an optimized design (...)
Productos y hardware compatibles

Productos y hardware compatibles

Productos
AC/DC & DC/DC controllers (external FET)
LM5141 — Controlador reductor síncrono con rango de entrada amplio y baja IQ LM5141-Q1 — Controlador reductor síncrono con entrada amplia de 2.2 MHz y baja IQ para automoción
Desarrollo de hardware
Placa de evaluación
LM5141QRGEVM — Módulo de evaluación LM5141QRG de convertidor reductor síncrono
Software
Herramienta de cálculo
LM5141DESIGN-CALC — Herramienta de diseño de inicio rápido LM5141-Q1 del controlador
Descargar
Diseños de referencia

TIDA-01413 — Diseño de referencia del centro de fusión de sensores de 8 canales ADAS con dos deserializadores cuá

This sensor fusion hub reference design allows the connection of up to four 2-megapixel cameras and up to four radar modules over coaxial cable. This design utilizes these coaxial cables to provide power, backchannel communication, and clock synchronization to the sensors. The two 4 Gbps FPD-Link (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

PMP15019 — Diseño de referencia de controlador buck sincrónico de alta corriente y amplio VIN para sector autom

PMP15019 uses the LM5141-Q1 low Iq synchronous buck controller as the centerpiece of a high current automotive DC/DC power supply. The PMP15019 operates over the input voltage range of VOUT + 0.5V to 42V. The EVM provides a 5.0V output (default) with a maximum load current of 15A, 20A (...)
Test report: PDF
Esquema: PDF
Diseños de referencia

PMP21795 — Diseño de referencia de convertidor buck sincrónico optimizado térmicamente y con EMI para sector au

This reference design is an EMI and thermally optimized synchronous buck converter for automotive applications. The circuit is powered from the nominal 12-V battery to provide an output voltage of 3.3 V at 8 A. The design uses a synchronous buck controller operating at a switching frequency of 440 (...)
Test report: PDF
Esquema: PDF
Diseños de referencia

PMP15041 — Diseño de referencia de arranque-parada para sector automotriz de 25 W que funciona a 2,2 MHz

Automotive 12V batteries typically operate in the range of 9V-16V. However this voltage can vary widely due to transient conditions such as cold crank and load dump. This reference design creates a well-regulated 25W (5V,5A) output, regardless of large input voltage transients, utilizing the (...)
Test report: PDF
Esquema: PDF
Diseños de referencia

PMP20682 — Diseño de referencia de convertidor buck sincrónico para un clúster de sector automotriz

PMP20682 is a synchronous buck converter reference design utilizing the LM5141-Q1 synchronous buck controller I.C. The design accepts an input voltage of 5V to 40V and provides a 3.3V output capable of supplying 10A of current to the load. An EMI filter is incorporated on the input. Optional (...)
Test report: PDF
Esquema: PDF
Diseños de referencia

PMP20818 — Diseño de referencia de convertidor de retención de 137 W para servidor de almacenamiento

PMP20818 is a holdup reference design that uses the LM3481 non-synchronous boost and LM5141-Q1 synchronous buck controllers. When the 12V input supply is available, the buck converter is disabled, and the boost converter charges a capacitive holdup bank. In the event of a power outage, the boost (...)
Test report: PDF
Esquema: PDF
Diseños de referencia

PMP30339 — Diseño de referencia de buck sincrónico de sector automotriz con 3,3 V a 12,0 A

This automotive single-phase synchronous buck converter provides 3.3 V at 12 A from an input voltage range of 9 V to 18 V. The extended input voltage range for short-time operation is 4.5 V to 32 V.
Test report: PDF
Esquema: PDF
Paquete Pasadores Descargar
VQFN (RGE) 24 Ver opciones
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

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

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

Ver todos los temas del foro en inglés

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene preguntas sobre la calidad, el paquete o el pedido de productos de TI, consulte el soporte de TI. ​​​​​​​​​​​​​​

Videos