Inicio Gestión de la energía Controladores CA/CC y CC/CC (FET externo)

LM34936-Q1

ACTIVO

Controlador elevador-reductor síncrono automotriz de 4 interruptores síncrono con entrada de tensión

Detalles del producto

Vin (min) (V) 4.2 Vin (max) (V) 30 Operating temperature range (°C) -40 to 125 Topology Buck-Boost Rating Automotive Vout (min) (V) 0.8 Vout (max) (V) 30 Features Adjustable current limit, Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Spread Spectrum, Synchronous Rectification, UVLO adjustable Iq (typ) (µA) 2000 Duty cycle (max) (%) 100
Vin (min) (V) 4.2 Vin (max) (V) 30 Operating temperature range (°C) -40 to 125 Topology Buck-Boost Rating Automotive Vout (min) (V) 0.8 Vout (max) (V) 30 Features Adjustable current limit, Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Spread Spectrum, Synchronous Rectification, UVLO adjustable Iq (typ) (µA) 2000 Duty cycle (max) (%) 100
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to 125°C TA
  • Single inductor buck-boost controller for step-up or step-down DC/DC conversion
  • Wide VIN: 4.2 V (2.5 V with bias) to 30 V (42-V maximum)
  • Flexible VOUT: 0.8 V to 30 V
  • VOUT short protection
  • High efficiency buck-boost transition
  • Adjustable switching frequency
  • Optional frequency sync and dithering
  • Integrated 2-A MOSFET gate drivers
  • Cycle-by-cycle current limit and optional hiccup
  • Optional input or output average current limiting
  • Programmable input UVLO and soft start
  • Power good and output overvoltage protection
  • Available in 28-pin HTSSOP package with PowerPAD™
  • Create a custom design using the LM34936-Q1 with the WEBENCH Power Designer
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to 125°C TA
  • Single inductor buck-boost controller for step-up or step-down DC/DC conversion
  • Wide VIN: 4.2 V (2.5 V with bias) to 30 V (42-V maximum)
  • Flexible VOUT: 0.8 V to 30 V
  • VOUT short protection
  • High efficiency buck-boost transition
  • Adjustable switching frequency
  • Optional frequency sync and dithering
  • Integrated 2-A MOSFET gate drivers
  • Cycle-by-cycle current limit and optional hiccup
  • Optional input or output average current limiting
  • Programmable input UVLO and soft start
  • Power good and output overvoltage protection
  • Available in 28-pin HTSSOP package with PowerPAD™
  • Create a custom design using the LM34936-Q1 with the WEBENCH Power Designer

The LM34936-Q1 is a synchronous four-switch buck-boost DC/DC controller capable of regulating the output voltage at, above, or below the input voltage. The device operates over a wide input voltage range of 4.2 V to 30 V (42 V absolute maximum) to support a variety of applications.

The LM34936-Q1 uses current-mode control both in buck and boost modes of operation for superior load and line regulation. The switching frequency is programmed by an external resistor and can be synchronized to an external clock signal.

The device also features a programmable soft-start function and offers protection features including cycle-by-cycle current limiting, input undervoltage lockout (UVLO), output overvoltage protection (OVP), and thermal shutdown. In addition, the LM34936-Q1 features optional average input or output current limiting, optional spread spectrum to reduce peak EMI, and optional hiccup mode protection in sustained overload conditions.

The LM34936-Q1 is a synchronous four-switch buck-boost DC/DC controller capable of regulating the output voltage at, above, or below the input voltage. The device operates over a wide input voltage range of 4.2 V to 30 V (42 V absolute maximum) to support a variety of applications.

The LM34936-Q1 uses current-mode control both in buck and boost modes of operation for superior load and line regulation. The switching frequency is programmed by an external resistor and can be synchronized to an external clock signal.

The device also features a programmable soft-start function and offers protection features including cycle-by-cycle current limiting, input undervoltage lockout (UVLO), output overvoltage protection (OVP), and thermal shutdown. In addition, the LM34936-Q1 features optional average input or output current limiting, optional spread spectrum to reduce peak EMI, and optional hiccup mode protection in sustained overload conditions.

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Documentación técnica

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Tipo Título Fecha
* Data sheet LM34936-Q1 30-V Wide VIN Synchronous Four-Switch Buck-Boost Controller datasheet (Rev. A) PDF | HTML 14 sep 2021
Application note LM5176 Power Sharing Between Two Parallel, Four-Switch Buck-Boost Converters 16 jul 2018

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

LM34936EVM — Módulo de evaluación LM34936

The LM34936EVM features a four switch buck-boost converter based on TI’s LM34936 Wide VIN buck-boost controller. This converter is designed to operate from input voltage from 6V to 30V and provide a 12V regulated output with a load current of up to 6 A.
Guía del usuario: PDF
Placa de evaluación

LM5175EVM — Módulo de evaluación LM5175EVM de controlador elevador-reductor con inductor único y Vin amplia

The LM5175EVM is a four-switch non-inverting buck-boost converter based on the LM5175 controller.  This converter is designed to operate with input voltage from 6V to 42V and provide a regulated 12V output for  load current up to 6A.  The high efficiency transition region (...)

Guía del usuario: PDF
Placa de evaluación

LM5176EVM-HP — Módulo de evaluación LM5176 de controlador elevador-reductor de VIN amplia

The LM5176EVM-HP demonstrates a flexible high power buck-boost design using the LM5176 wide-vin buck-boost controller. The evaluation module is configured to operate from an input voltage range of 6V-36V and to provide a regulated 12-V output with up to 12A of load current.
Guía del usuario: PDF
Modelo de simulación

LM34936 PSpice Transient Model

SNVMBL5.ZIP (130 KB) - PSpice Model
Herramienta de cálculo

LM34936-BUCK-BOOST-QUICKSTART-TOOL LM34936 Buck-Boost Quickstart Tool

The LM34936 Buck-Boost Quickstart Tool support to configure the power stage and the external components for the LM34936.
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Controladores CA/CC y CC/CC (FET externo)
LM34936 Controlador elevador-reductor síncrono de 4 interruptores con entrada de tensión amplia de 30 V LM34936-Q1 Controlador elevador-reductor síncrono automotriz de 4 interruptores síncrono con entrada de tensión
Desarrollo de hardware
Placa de evaluación
LM34936EVM Módulo de evaluación LM34936
Herramienta de cálculo

SNVC208 LM5176 Design Calculator

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Controladores CA/CC y CC/CC (FET externo)
LM34936-Q1 Controlador elevador-reductor síncrono automotriz de 4 interruptores síncrono con entrada de tensión LM5176 Controlador elevador-reductor síncrono de 4 interruptores con VIN amplia de 55 V LM5176-Q1 Controlador elevador-reductor síncrono de 4 interruptores con VIN amplia de 55 V y certificación AEC
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HTSSOP (PWP) 28 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

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.

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