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LM5034

ACTIVO

Controlador doble intercalado con modo de corriente de pinza activa de 100 V y FET de pinza de canal

Detalles del producto

Topology Active-clamp forward Control mode Current Features Current limiting, High-voltage startup, Soft start, Supports PFET clamp, Synchronization pin Duty cycle (max) (%) 76
Topology Active-clamp forward Control mode Current Features Current limiting, High-voltage startup, Soft start, Supports PFET clamp, Synchronization pin Duty cycle (max) (%) 76
TSSOP (PW) 20 41.6 mm² (6.5 mm × 6.4 mm)
  • Two Independent PWM Current Mode Controllers
  • Integrated High Voltage Startup Regulator
  • Compound 2.5A Main Output Gate Drivers
  • Single Resistor Oscillator Setting to 2 MHz
  • Synchronizable Oscillator
  • Active Clamp Gate Driver for P-Channel MOSFETs
  • Adjustable Gate Drive Overlap Time
  • Programmable Maximum Duty Cycle
  • Maximum Duty Cycle Fold-Back at High Line Voltage
  • Adjustable Timer for Hiccup Mode Current Limiting
  • Integrated Slope Compensation
  • Adjustable Line Under-Voltage Lockout
  • Independently Adjustable Soft-Start (Each Regulator)
  • Direct Interface with Opto-Coupler Transistor
  • Thermal Shutdown

All trademarks are the property of their respective owners.

  • Two Independent PWM Current Mode Controllers
  • Integrated High Voltage Startup Regulator
  • Compound 2.5A Main Output Gate Drivers
  • Single Resistor Oscillator Setting to 2 MHz
  • Synchronizable Oscillator
  • Active Clamp Gate Driver for P-Channel MOSFETs
  • Adjustable Gate Drive Overlap Time
  • Programmable Maximum Duty Cycle
  • Maximum Duty Cycle Fold-Back at High Line Voltage
  • Adjustable Timer for Hiccup Mode Current Limiting
  • Integrated Slope Compensation
  • Adjustable Line Under-Voltage Lockout
  • Independently Adjustable Soft-Start (Each Regulator)
  • Direct Interface with Opto-Coupler Transistor
  • Thermal Shutdown

All trademarks are the property of their respective owners.

The LM5034 dual current mode PWM controller contains all the features needed to control either two independent forward/active clamp dc/dc converters or a single high current converter comprised of two interleaved power stages. The two controller channels operate 180° out of phase thereby reducing input ripple current. The LM5034 includes a startup regulator that operates over a wide input range up to 100V and compound (bipolar + CMOS) gate drivers that provide a robust 2.5A peak sink current. The adjustable dead-time of the active clamp gate drivers and adjustable maximum PWM duty cycle reduce stress on the primary side MOSFET switches. Additional features include programmable line under-voltage lockout, cycle-by-cycle current limit, hiccup mode fault operation with adjustable restart delay, PWM slope compensation, soft-start, and a 2 MHz capable oscillator with synchronization capability.

The LM5034 dual current mode PWM controller contains all the features needed to control either two independent forward/active clamp dc/dc converters or a single high current converter comprised of two interleaved power stages. The two controller channels operate 180° out of phase thereby reducing input ripple current. The LM5034 includes a startup regulator that operates over a wide input range up to 100V and compound (bipolar + CMOS) gate drivers that provide a robust 2.5A peak sink current. The adjustable dead-time of the active clamp gate drivers and adjustable maximum PWM duty cycle reduce stress on the primary side MOSFET switches. Additional features include programmable line under-voltage lockout, cycle-by-cycle current limit, hiccup mode fault operation with adjustable restart delay, PWM slope compensation, soft-start, and a 2 MHz capable oscillator with synchronization capability.

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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 LM5034 High Voltage Dual Interleaved Current Mode Controller with Active Clamp datasheet (Rev. A) 29/03/2013
Guía de selección Power Management Guide 2018 (Rev. R) 25/06/2018
Nota sobre la aplicación Operation and Benefits of Active-Clamp Forward Power Converters 22/03/2007

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

LM5034EVAL — Controlador doble intercalado de alta tensión con modo de corriente y pinza activa

Controlador de modo de corriente intercalado doble de alto tensión LM5034 con abrazadera activa

Guía del usuario: PDF
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TSSOP (PW) 20 Ultra Librarian

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