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LM25037

ACTIVO

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

Detalles del producto

Topology Full bridge, Half bridge, Push pull Control mode Current Features Adjustable switching frequency, Current limiting, High-voltage startup, Multi-topology, Programmable max duty cycle, Programmable soft start, Synchronization pin Duty cycle (max) (%) 96
Topology Full bridge, Half bridge, Push pull Control mode Current 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 mm × 6.4 mm)
  • 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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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LM25037/-Q1 Dual-Mode PWM Controller With Alternating Outputs datasheet (Rev. E) PDF | HTML 15/01/2016
Nota sobre la aplicación Designing High Voltage Power Supply for Ultrasound Smart Probes (Rev. A) PDF | HTML 16/05/2023
Nota sobre la aplicación Topology Selection for Isolated Power Supplies in Patient Monitor (Rev. A) PDF | HTML 2/09/2020
Guía de selección Power Management Guide 2018 (Rev. R) 25/06/2018
Nota sobre la aplicación An Alternative Approach to Higher-Power Boost Converters 30/11/2009

Diseño y desarrollo

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Placa de evaluación

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

La placa de evaluación LM25037 está diseñada para proporcionar al ingeniero de diseño un convertidor de potencia totalmente funcional basado en la topología de pulsación-tracción para evaluar el controlador LM25037.

Guía del usuario: PDF
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