Inicio Administración de potencia Reguladores conmutados CC/CC Controladores de CC/CC

LM5171-Q1

ACTIVO

Controlador buck-boost bidireccional automotriz de doble canal de 80 V

Detalles del producto

Rating Automotive Topology Boost, Buck, Buck/Boost Vin (max) (V) 75 Vin (min) (V) 1 Vout (max) (V) 80 Vout (min) (V) 3 Control mode current mode Features Adjustable current limit, Bidirectional, Enable, Frequency synchronization, Multiple outputs, Phase interleaving, Synchronous rectification, UVLO adjustable Iq (typ) (A) 0.001 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150
Rating Automotive Topology Boost, Buck, Buck/Boost Vin (max) (V) 75 Vin (min) (V) 1 Vout (max) (V) 80 Vout (min) (V) 3 Control mode current mode Features Adjustable current limit, Bidirectional, Enable, Frequency synchronization, Multiple outputs, Phase interleaving, Synchronous rectification, UVLO adjustable Iq (typ) (A) 0.001 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150
HTQFP (PHP) 48 81 mm² (9 mm × 9 mm)
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C ambient operating range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
  • Functional Safety-Capable
  • 85V HV-port and 80V LV-port max ratings
  • 1% typical accuracy of bidirectional current regulation
  • 1% typical accuracy of channel current monitoring
  • I2C interface for monitoring and diagnosis
  • Built-in 3.5V 1% reference voltage
  • Integrated 5V 10mA bias supply
  • 5A peak half-bridge gate drivers
  • Programmable or adaptive dead-time control
  • Programmable oscillator frequency up to 1MHz with optional synchronization to external clock
  • Independent channel enabling control inputs
  • Integrated both current and voltage loop control
  • Programmable cycle-by-cycle peak current limit
  • Over-temperature shutdown
  • HV and LV port overvoltage protection
  • Dynamically selectable diode emulation and forced PWM operation modes
  • Programmable soft-start timer
  • Supports both multiphase and independent channel operations
  • Supports urgent shutdown latch
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C ambient operating range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
  • Functional Safety-Capable
  • 85V HV-port and 80V LV-port max ratings
  • 1% typical accuracy of bidirectional current regulation
  • 1% typical accuracy of channel current monitoring
  • I2C interface for monitoring and diagnosis
  • Built-in 3.5V 1% reference voltage
  • Integrated 5V 10mA bias supply
  • 5A peak half-bridge gate drivers
  • Programmable or adaptive dead-time control
  • Programmable oscillator frequency up to 1MHz with optional synchronization to external clock
  • Independent channel enabling control inputs
  • Integrated both current and voltage loop control
  • Programmable cycle-by-cycle peak current limit
  • Over-temperature shutdown
  • HV and LV port overvoltage protection
  • Dynamically selectable diode emulation and forced PWM operation modes
  • Programmable soft-start timer
  • Supports both multiphase and independent channel operations
  • Supports urgent shutdown latch

The LM5171-Q1 controller provides the high voltage and precision elements of a dual-channel bidirectional converter, examples include dual battery systems. The LM5171-Q1 supports multiphase parallel operation with balanced current sharing in each phase. The LM5171-Q1 also supports independent channel bi-directional operation making it versatile as standalone controller operating as multiphase buck/boost or independent buck or boost.

The dual-channel differential current sense amplifiers and dedicated channel current monitors achieve a typical accuracy of 1%. The robust 5A half-bridge gate drivers are capable of driving parallel MOSFETs for more power per channel. Program the controller dynamically to operate in either diode emulation mode (DEM) or forced PWM (FPWM) mode. Versatile protection features include cycle-by-cycle current limiting, overvoltage protection, overtemperature protection and urgent shutdown latch.

The LM5171-Q1 controller provides the high voltage and precision elements of a dual-channel bidirectional converter, examples include dual battery systems. The LM5171-Q1 supports multiphase parallel operation with balanced current sharing in each phase. The LM5171-Q1 also supports independent channel bi-directional operation making it versatile as standalone controller operating as multiphase buck/boost or independent buck or boost.

The dual-channel differential current sense amplifiers and dedicated channel current monitors achieve a typical accuracy of 1%. The robust 5A half-bridge gate drivers are capable of driving parallel MOSFETs for more power per channel. Program the controller dynamically to operate in either diode emulation mode (DEM) or forced PWM (FPWM) mode. Versatile protection features include cycle-by-cycle current limiting, overvoltage protection, overtemperature protection and urgent shutdown latch.

Descargar Ver vídeo con transcripción Video

Productos similares que pueden interesarle

open-in-new Comparar alternativas
Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
LM5170-Q1 ACTIVO Controlador de corriente bidireccional multifásico con certificación AEC-Q100 LM5170-Q1 has a circuit breaker function and separate OVP for the LV and HV ports

Documentación técnica

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 7
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LM5171-Q1 Dual Channel Bidirectional Controller datasheet (Rev. B) PDF | HTML 29/09/2025
Application brief Multiphase Operation of LM5171 PDF | HTML 24/04/2026
Application brief Seamless Bidirectional Operation of LM5171 PDF | HTML 13/04/2026
Nota sobre la aplicación How to Use the Two Channels of LM5171 Independently PDF | HTML 30/10/2025
Información sobre seguridad funcional LM5171-Q1 Functional Safety FIT, FMD, and Pin FMA (Rev. A) PDF | HTML 6/10/2023
Certificado LM5171EVM-BIDIR EU Declaration of Conformity (DoC) 5/05/2023
Nota sobre la aplicación U-140 Average Current Mode Control of Switching Power Supplies 5/09/1999

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

LM5171EVM-BIDIR — Módulo de evaluación LM5171

El módulo de evaluación (EVM) LM5171EVM-BIDIR es un convertidor bidireccional intercalado de fase dual ideal para aplicaciones de sistemas de batería dual de 48 V a 12 V. Es apilable multifásico con ángulo de intercalación ajustable y reparto equilibrado de la corriente. El EVM también incluye (...)
Guía del usuario: PDF | HTML
Productos y hardware compatibles
En inventario
Límite:
??asset.out-of-stock-ti_es_MX??
No disponible
Herramienta de cálculo

LM5171-CALC — LM5171-Q1 Quickstart Calculator

LM5171-Q1 Quickstart Calculator helps on design of the power stage, current loop and voltage loop. Component calculations for the controller are also included.
Productos y hardware compatibles
Diseño de referencia

PMP41079 — Diseño de referencia de convertidor boost entrelazado de dos fases para amplificadores de audio d

Este diseño de referencia muestra un convertidor elevador intercalado de 2 fases y 450 W para la aplicación de amplificador de audio de clase H. Para alimentar el amplificador de audio externo, el controlador es capaz de seguir la señal de control de clase H del amplificador y generar una tensión (...)

Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HTQFP (PHP) 48 Ultra Librarian

Pedidos y calidad

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

Soporte y capacitación

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

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 alguna pregunta sobre calidad, encapsulados o pedido de productos de TI, consulte el servicio de asistencia de TI. ​​​​​​​​​​​​​​

Videos