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

LM5122-Q1

ACTIVO

Controlador elevador síncrono con modo de corriente de VIN amplia de 3 V-65 V y capacidad multifásic

Se encuentra disponible una versión más nueva de este producto

open-in-new Comparar alternativas
Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
LM5123-Q1 ACTIVO Controlador elevador síncrono con VIN amplia de 2.2 MHz y baja IQ LM5123-Q1 has updated/better specs except lower voltage
LM51231-Q1 ACTIVO Controlador elevador síncrono con VIN amplia de 2.2 MHz y seguimiento de tensión de salida Updated, better specs (except lower voltage)

Detalles del producto

Vin (min) (V) 3 Vin (max) (V) 65 Operating temperature range (°C) -40 to 125 Control mode current mode Topology Boost, Flyback, Forward, SEPIC Rating Automotive Vout (min) (V) 3 Vout (max) (V) 100 Features Enable, Frequency synchronization, Phase Interleaving, Synchronous Rectification, UVLO adjustable Iq (typ) (µA) 4000 Duty cycle (max) (%) 100
Vin (min) (V) 3 Vin (max) (V) 65 Operating temperature range (°C) -40 to 125 Control mode current mode Topology Boost, Flyback, Forward, SEPIC Rating Automotive Vout (min) (V) 3 Vout (max) (V) 100 Features Enable, Frequency synchronization, Phase Interleaving, Synchronous Rectification, UVLO adjustable Iq (typ) (µA) 4000 Duty cycle (max) (%) 100
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • 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 C6
  • Maximum Input Voltage: 65 V
  • Minimum Input Voltage: 3 V (4.5 V for Start-Up)
  • Output Voltage up to 100 V
  • Bypass (VOUT = VIN) Operation
  • 1.2-V Reference with ±1% Accuracy
  • Free-Run and Synchronizable Switching to 1 MHz
  • Peak-Current-Mode Control
  • Robust 3-A Integrated Gate Drivers
  • Adaptive Dead-Time Control
  • Optional Diode-Emulation Mode
  • Programmable Cycle-by-Cycle Current Limit
  • Hiccup-Mode Overload Protection
  • Programmable Line UVLO
  • Programmable Soft Start
  • Thermal Shutdown Protection
  • Low Shutdown Quiescent Current: 9 µA
  • Programmable Slope Compensation
  • Programmable Skip-Cycle Mode Reduces Standby Power
  • Allows External VCC Supply
  • Inductor DCR Current Sensing Capability
  • Multi-phase Capability
  • Thermally Enhanced 20-Pin HTSSOP
  • Create a Custom Design Using the LM5122 With the WEBENCH® Power Designer
  • 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 C6
  • Maximum Input Voltage: 65 V
  • Minimum Input Voltage: 3 V (4.5 V for Start-Up)
  • Output Voltage up to 100 V
  • Bypass (VOUT = VIN) Operation
  • 1.2-V Reference with ±1% Accuracy
  • Free-Run and Synchronizable Switching to 1 MHz
  • Peak-Current-Mode Control
  • Robust 3-A Integrated Gate Drivers
  • Adaptive Dead-Time Control
  • Optional Diode-Emulation Mode
  • Programmable Cycle-by-Cycle Current Limit
  • Hiccup-Mode Overload Protection
  • Programmable Line UVLO
  • Programmable Soft Start
  • Thermal Shutdown Protection
  • Low Shutdown Quiescent Current: 9 µA
  • Programmable Slope Compensation
  • Programmable Skip-Cycle Mode Reduces Standby Power
  • Allows External VCC Supply
  • Inductor DCR Current Sensing Capability
  • Multi-phase Capability
  • Thermally Enhanced 20-Pin HTSSOP
  • Create a Custom Design Using the LM5122 With the WEBENCH® Power Designer

The LM5122 is a multi-phase capable synchronous boost controller intended for high-efficiency synchronous boost regulator applications. The control method is based upon peak-current-mode control. Current-mode control provides inherent line feed forward, cycle-by-cycle current limiting, and ease of loop compensation.

The switching frequency is programmable up to 1 MHz. Higher efficiency is achieved by two robust N-channel MOSFET gate drivers with adaptive dead-time control. A user-selectable diode-emulation mode also enables discontinuous-mode operation for improved efficiency at light load conditions.

An internal charge pump allows 100% duty cycle for high-side synchronous switch (bypass operation). A 180° phase shifted clock output enables easy multi-phase interleaved configuration. Additional features include thermal shutdown, frequency synchronization, hiccup-mode current limit, and adjustable line undervoltage lockout.

The LM5122 is a multi-phase capable synchronous boost controller intended for high-efficiency synchronous boost regulator applications. The control method is based upon peak-current-mode control. Current-mode control provides inherent line feed forward, cycle-by-cycle current limiting, and ease of loop compensation.

The switching frequency is programmable up to 1 MHz. Higher efficiency is achieved by two robust N-channel MOSFET gate drivers with adaptive dead-time control. A user-selectable diode-emulation mode also enables discontinuous-mode operation for improved efficiency at light load conditions.

An internal charge pump allows 100% duty cycle for high-side synchronous switch (bypass operation). A 180° phase shifted clock output enables easy multi-phase interleaved configuration. Additional features include thermal shutdown, frequency synchronization, hiccup-mode current limit, and adjustable line undervoltage lockout.

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Documentación técnica

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Tipo Título Fecha
* Data sheet LM5122-Q1 Wide-Input Synchronous Boost Controller With Multiple Phase Capability datasheet PDF | HTML 09 jun 2017
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
Application brief Improve DC/DC Regulator EMI for Free with Optimized Power Stage Layout 13 nov 2017
Analog Design Journal Designing the front-end DC/DC conversion stage to withstand automotive transient 18 ene 2017
EVM User's guide LM5122EVM-1PH User's Guide 22 abr 2013
EVM User's guide LM5122EVM-2PH User's Guide 22 abr 2013

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

LM5122EVM-1PH — Módulo de evaluación LM5122EVM-1PH de controlador elevador síncrono de Vin amplia

The LM5122EVM-1PH evaluation module (EVM) provides the design engineer with a fully functional synchronous boost converter to evaluate the Texas Instruments LM5122 synchronous boost controller IC. The EVM provides 24V output at up to 4.5A current from a 9V to 20V input. The EVM is designed to (...)
Guía del usuario: PDF
Placa de evaluación

LM5122EVM-2PH — Módulo de evaluación LM5122EVM-2PH de controlador elevador síncrono de Vin amplia

The LM5122EVM-2PH evaluation module (EVM) provides the design engineer with a fully functional dual phase synchronous boost converter to evaluate the Texas Instruments LM5122 synchronous boost controller IC. The EVM provides 28V output at up to 7A current from a 9V to 20V input. The EVM is (...)
Guía del usuario: PDF
Placa de evaluación

TPS92662AEVM6-104 — Módulo de evaluación de matriz de seis canales TPS92662A-Q1

El TPS92662AEVM6-104 consta de 66 LED controlables de forma individual configurados en una aplicación de seis canales. Este módulo de evaluación muestra la versatilidad y la configurabilidad del dispositivo de administrador de matriz LED TPS92662A-Q1. Con la placa de circuito impreso (PCB) de (...)
Placa de evaluación

TPS92662EVM6-900 — Módulo de evaluación de matriz de seis canales TPS92662-Q1

The TPS92662EVM6-900 consists of 66 invidividually controllable LEDs configured into a six channel application. This evaluation module shows the versatility and configurability of the TPS92662-Q1 LED Matrix Manager Device. Using the companion control PCB, 6CHAUTOECU-899, and the TPS92662EVM (...)
Modelo de simulación

LM5122 Dual-Phase TINA-TI Transient Reference Design

SNVMAV2.TSC (729 KB) - TINA-TI Reference Design
Modelo de simulación

LM5122 TINA-TI Transient Reference Design (Rev. B)

SNVM495B.TSC (188 KB) - TINA-TI Reference Design
Modelo de simulación

LM5122 TINA-TI Transient Spice Model (Rev. B)

SNVM494B.ZIP (52 KB) - TINA-TI Spice Model
Modelo de simulación

LM5122-Q1 PSpice Model (Rev. B)

SNVM416B.ZIP (56 KB) - PSpice Model
Herramienta de cálculo

LM5122-BOOST-CALC LM5122 quick start calculator

LM5122 quick start calculator for boost topology
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Controladores CA/CC y CC/CC (FET externo)
LM5122 Controlador elevador síncrono con modo de corriente de Vin amplia de 3 V-65 V y capacidad multifásic LM5122-Q1 Controlador elevador síncrono con modo de corriente de VIN amplia de 3 V-65 V y capacidad multifásic LM5122ZA Controlador elevador síncrono con modo de corriente de VIN amplia de 3 V-65 V y capacidad multifásic
Desarrollo de hardware
Placa de evaluación
LM5122EVM-1PH Módulo de evaluación LM5122EVM-1PH de controlador elevador síncrono de Vin amplia LM5122EVM-2PH Módulo de evaluación LM5122EVM-2PH de controlador elevador síncrono de Vin amplia
Diseños de referencia

TIDA-01520 — Diseño de referencia de controlador LED de dos etapas de 50 W, con control de preimpulso adaptativo

The TIDA-01520 dual-stage reference design drives two strings of LEDs for automotive headlight applications while automatically adapting the pre-boost voltage without the need of a microcontroller (MCU) which saves space and cost. Additionally, the design’s adaptive, pre-boost control (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

PMP7837 — Diseño de referencia de alimentación para amplificador de audio de 450 W para automoción

The PMP7837 is a 4-phase synchronous boost converter that can take a 6-17V input and put out 24V at 450W. It is used for powering up to eight 50W automotive trunk amplifiers. The 4-phase synchronous design with 450kHz switching frequency per phase results in a compact and efficient circuit well (...)
Test report: PDF
Esquema: PDF
Diseños de referencia

PMP10749 — Diseño de referencia de potencia a nivel de sistema de 100 W para un sistema de infoentretenimiento

PMP10749 is a 100-W system-level SMPS design for a higher-power automotive infotainment system. The design has protections, such as load dump through TVS (ISO pulse testing), as well as reverse voltage (innovative smart diode with very low Iq) protection. Furthermore, all the controllers (boost and (...)
Test report: PDF
Esquema: PDF
Diseños de referencia

TIDA-00748 — Diseño de referencia del controlador LED de impulso síncrono de 60 W para aplicaciones automotrices

TIDA-00748 is a 60W Synchronous Boost Design for automotive LED application utilizing the Synchronous Boost Converter LM5122-Q1.  This design applies to automotive lighting for exterior lighting such as headlights and taillights and also interior LED lighting systems. The design accepts an (...)
Test report: PDF
Esquema: PDF
Diseños de referencia

PMP9403 — Diseño de referencia de convertidor elevador síncrono bifásico de 192 W

PMP9403 is a high-efficiency dual-phase synchronous boost converter using the LM5122 controller ICs. The design accepts an input voltage of 9Vin to 15Vin (12Vin Nominal) and provides an output of 48Vout capable of supplying 4A of continuous current to the load.
Test report: PDF
Esquema: PDF
Diseños de referencia

TIDA-00223 — Diseño de referencia de amplificador de audio I2S mediante coaxial de clase D de calidad automotriz

This reference design is an I²S/TDM-based, low-cost, easy-to-use alternative to fiber optics/analog copper wire for connecting an automotive (sound) control panel to an output stage/power amplifier. Supporting I²S as well as TDM, it is capable of transmitting digital audio signal to 16 (...)
Design guide: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HTSSOP (PWP) 20 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.

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

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