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

LM25037-Q1

ACTIVO

Controlador automotriz de puerta de 1.2 A y 5.5 V a 75 V, controlador PWM de modo doble con salidas

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LM25037-Q1

ACTIVO
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Detalles del producto

Vin (max) (V) 14 Operating temperature range (°C) -40 to 125 Control mode Current Topology Full bridge, Half bridge, Push pull Rating Automotive Features Adjustable switching frequency, Current limiting, High-voltage startup, Multi-topology, Programmable max duty cycle, Programmable soft start, Synchronization pin Duty cycle (max) (%) 96
Vin (max) (V) 14 Operating temperature range (°C) -40 to 125 Control mode Current Topology Full bridge, Half bridge, Push pull Rating Automotive Features Adjustable switching frequency, Current limiting, High-voltage startup, Multi-topology, Programmable max duty cycle, Programmable soft start, Synchronization pin Duty cycle (max) (%) 96
TSSOP (PW) 16 32 mm² 5 x 6.4
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: -40°C to +125°C Operating Junction Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Alternating Outputs for Double-Ended Topologies
  • Ultra Wide Input Operating Range from 5.5 V to 75 V
  • Current-Mode or Feed-Forward Voltage-Mode Control
  • Programmable Maximum Duty Cycle Limit
  • 2% Feedback Reference Accuracy
  • High Gain-Bandwidth Error Amplifier
  • Programmable Line Undervoltage Lockout (UVLO) With Adjustable Hysteresis
  • Versatile Dual Mode Overcurrent Protection With Hiccup Delay Timer
  • Programmable Soft-Start
  • Precision 5-V Reference Output
  • Current Sense Leading Edge Blanking
  • Resistor Programmed 2-MHz Capable Oscillator
  • Oscillator Synchronization Capability With Low-Frequency Lockout Protection
  • 16-Pin TSSOP
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: -40°C to +125°C Operating Junction Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Alternating Outputs for Double-Ended Topologies
  • Ultra Wide Input Operating Range from 5.5 V to 75 V
  • Current-Mode or Feed-Forward Voltage-Mode Control
  • Programmable Maximum Duty Cycle Limit
  • 2% Feedback Reference Accuracy
  • High Gain-Bandwidth Error Amplifier
  • Programmable Line Undervoltage Lockout (UVLO) With Adjustable Hysteresis
  • Versatile Dual Mode Overcurrent Protection With Hiccup Delay Timer
  • Programmable Soft-Start
  • Precision 5-V Reference Output
  • Current Sense Leading Edge Blanking
  • Resistor Programmed 2-MHz Capable Oscillator
  • Oscillator Synchronization Capability With Low-Frequency Lockout Protection
  • 16-Pin TSSOP

The LM25037 PWM controller contains all the features necessary to implement balanced double-ended power converter topologies, such as push-pull, half-bridge and full-bridge. These double-ended topologies allow for higher efficiencies and greater power densities compared to common single-ended topologies such as the flyback and forward. The LM25037 can be configured for either voltage mode or current mode control with minimum external components. Two alternating gate drive outputs are provided, each capable of 1.2-A peak output current. The LM25037 can be configured to operate directly from the input voltage rail over an ultra-wide range of 5.5 V to 75 V. Additional features include programmable maximum duty cycle limit, line undervoltage lockout, cycle-by-cycle current limit and a hiccup mode fault protection with adjustable timeout delay, soft-start and a 2-MHz capable oscillator with synchronization capability, precision reference and thermal shutdown.

The LM25037 PWM controller contains all the features necessary to implement balanced double-ended power converter topologies, such as push-pull, half-bridge and full-bridge. These double-ended topologies allow for higher efficiencies and greater power densities compared to common single-ended topologies such as the flyback and forward. The LM25037 can be configured for either voltage mode or current mode control with minimum external components. Two alternating gate drive outputs are provided, each capable of 1.2-A peak output current. The LM25037 can be configured to operate directly from the input voltage rail over an ultra-wide range of 5.5 V to 75 V. Additional features include programmable maximum duty cycle limit, line undervoltage lockout, cycle-by-cycle current limit and a hiccup mode fault protection with adjustable timeout delay, soft-start and a 2-MHz capable oscillator with synchronization capability, precision reference and thermal shutdown.
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Documentación técnica

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* Data sheet LM25037/-Q1 Dual-Mode PWM Controller With Alternating Outputs datasheet (Rev. E) PDF | HTML 15 ene 2016
Technical article Hybrid electric vehicles and electric vehicles need different isolated DC/DCs to w PDF | HTML 27 dic 2017
Technical article Before digital control, there were general-purpose PWMs PDF | HTML 19 oct 2016
EVM User's guide AN-1861 LM25037 Evaluation Board (Rev. C) 05 may 2013
Application note An Alternative Approach to Higher-Power Boost Converters 30 nov 2009

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

LM25037EVAL — Placas de evaluación para LM25037: controlador PWM doble con salidas alternas

The LM25037 evaluation board is designed to provide the design engineer with a fully functional power converter based on push-pull topology to evaluate the LM25037 controller.

Guía del usuario: PDF
No disponible en TI.com
Modelo de simulación

LM25037 PSpice Transient Model (Rev. B)

SNVM034B.ZIP (133 KB) - PSpice Model
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Diseños de referencia

PMP11186 — Diseño de referencia de convertidor Push-Pull de 250 W para sector automotriz

The PMP11186 reference design is a non-isolated Push-Pull converter that operates from 6V - 16Vin and supplies +/- 25V@5A out (250W max).  This design operates at 200KHz with a peak efficiency of 88% (Vin = 12V).
Test report: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
TSSOP (PW) 16 Ultra Librarian
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

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