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

UCC25701

ACTIVO

Controlador PWM con VCC de 15 V, 1 A, 700 kHz, modo de tensión y terminación única con UVLO de 13 V/

Detalles del producto

Vin (max) (V) 15 Operating temperature range (°C) -40 to 85 Control mode Feedforward, Voltage Topology Boost, Flyback, Forward Rating Catalog Features Adjustable switching frequency, Current limiting, Multi-topology, Programmable max duty cycle, Soft start, Synchronization pin Duty cycle (max) (%) 99
Vin (max) (V) 15 Operating temperature range (°C) -40 to 85 Control mode Feedforward, Voltage Topology Boost, Flyback, Forward Rating Catalog Features Adjustable switching frequency, Current limiting, Multi-topology, Programmable max duty cycle, Soft start, Synchronization pin Duty cycle (max) (%) 99
PDIP (N) 14 181.42 mm² 19.3 x 9.4 SOIC (D) 14 51.9 mm² 8.65 x 6 TSSOP (PW) 14 32 mm² 5 x 6.4
  • 700kHz Operation
  • Integrated Oscillator/Voltage Feed Forward Compensation
  • Accurate Duty Cycle Limit
  • Accurate Volt-second Clamp
  • Optocoupler Interface
  • Fault Counting Shutdown
  • Fault Latch off or Automatic Shutdown
  • Soft Stop Optimized for Synchronous Rectification
  • 1A Peak Gate Drive Output
  • 130µA Start-up Current
  • 750µA Operating Current
  • 700kHz Operation
  • Integrated Oscillator/Voltage Feed Forward Compensation
  • Accurate Duty Cycle Limit
  • Accurate Volt-second Clamp
  • Optocoupler Interface
  • Fault Counting Shutdown
  • Fault Latch off or Automatic Shutdown
  • Soft Stop Optimized for Synchronous Rectification
  • 1A Peak Gate Drive Output
  • 130µA Start-up Current
  • 750µA Operating Current

The UCC35701/UCC35702 family of pulse width modulators is intended for isolated switching power supplies using primary side control. They can be used for both off-line applications and DC/DC converter designs such as in a distributed power system architecture or as a telecom power source.

The devices feature low startup current, allowing for efficient off-line starting, yet have sufficient output drive to switch power MOSFETs in excess of 500kHz.

Voltage feed forward compensation is operational over a 5:1 input range and provides fast and accurate response to input voltage changes over a 4:1 range. An accurate volt-second clamp and maximum duty cycle limit are also featured.

Fault protection is provided by pulse by pulse current limiting as well as the ability to latch off after a programmable number of repetitive faults has occurred.

Two UVLO options are offered. UCC35701 family has turn-on and turn-off thresholds of 13V/9V and UCC35702 family has thresholds of 9.6V/8.8V.

The UCC35701/2 and the UCC25701/2 are offered in the 14 pin SOIC (D), 14 pin PDIP (N) or in 14 pin TSSOP (PW) packages. The UCC15701/2 is offered in the 14 pin CDIP (J) package.

The UCC35701/UCC35702 family of pulse width modulators is intended for isolated switching power supplies using primary side control. They can be used for both off-line applications and DC/DC converter designs such as in a distributed power system architecture or as a telecom power source.

The devices feature low startup current, allowing for efficient off-line starting, yet have sufficient output drive to switch power MOSFETs in excess of 500kHz.

Voltage feed forward compensation is operational over a 5:1 input range and provides fast and accurate response to input voltage changes over a 4:1 range. An accurate volt-second clamp and maximum duty cycle limit are also featured.

Fault protection is provided by pulse by pulse current limiting as well as the ability to latch off after a programmable number of repetitive faults has occurred.

Two UVLO options are offered. UCC35701 family has turn-on and turn-off thresholds of 13V/9V and UCC35702 family has thresholds of 9.6V/8.8V.

The UCC35701/2 and the UCC25701/2 are offered in the 14 pin SOIC (D), 14 pin PDIP (N) or in 14 pin TSSOP (PW) packages. The UCC15701/2 is offered in the 14 pin CDIP (J) package.

Descargar Ver vídeo con transcripción Video

Productos similares que pueden interesarle

open-in-new Comparar alternativas
Funcionalidad similar a la del dispositivo comparado
UCC28C53 ACTIVO Controlador PWM industrial, 30 V, modo corriente de baja potencia, 8.4 V/7.6 V UVLO, ciclo de trabaj Supports Buck, Boost, Flyback topologies

Documentación técnica

star =Principal documentación para este producto seleccionada por TI
No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 4
Tipo Título Fecha
* Data sheet Advanced Voltage Mode Pulse Width Modulator datasheet (Rev. C) 17 jun 2005
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
Application note DN-62 Switching Power Supply Topology Voltage Mode vs. Current Mode 05 sep 1999
Application note U-150 Applying the UCC3570 Voltage-Mode PWM Controller to Both Off-Line 05 sep 1999

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.

Encapsulado Pines Símbolos CAD, huellas y modelos 3D
PDIP (N) 14 Ultra Librarian
SOIC (D) 14 Ultra Librarian
TSSOP (PW) 14 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. ​​​​​​​​​​​​​​

Videos