Inicio Administración de potencia Controladores CA/CC y CC/CC (FET externo)

UCC28089

ACTIVO

Oscilador de inserción-extracción del lado primario con control de tiempo muerto

Detalles del producto

Rating Catalog Topology Full bridge, Half bridge, Push pull Vin (max) (V) 14 Control mode Current Features Dead time control, Soft start, Synchronization pin Operating temperature range (°C) -40 to 105 Duty cycle (max) (%) 50
Rating Catalog Topology Full bridge, Half bridge, Push pull Vin (max) (V) 14 Control mode Current Features Dead time control, Soft start, Synchronization pin Operating temperature range (°C) -40 to 105 Duty cycle (max) (%) 50
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Push-Pull Oscillator With Programmable Deadtime
  • High-Current Totem-Pole Dual Output Stage Drives Push-Pull Configuration with 1-A Sink and 0.5-A Source Capability
  • Can be Used in Push-Pull, Half-Bridge, or Full-Bridge Topologies
  • Oscillator Synchronization Output
  • Low Start-Up Current of 130 µA and 1.4-mA Typical Run Current
  • Over-Current Shutdown
  • Digitally Controlled Over-Current/Retry Feature
  • Undervoltage Lockout With Hysteresis
  • APPLICATIONS
    • High Efficiency Cascaded Converters
    • Inverters
    • Electronic Ballasts
    • Uninterruptable Power Supplies (UPS)
    • AC or DC Links

  • Push-Pull Oscillator With Programmable Deadtime
  • High-Current Totem-Pole Dual Output Stage Drives Push-Pull Configuration with 1-A Sink and 0.5-A Source Capability
  • Can be Used in Push-Pull, Half-Bridge, or Full-Bridge Topologies
  • Oscillator Synchronization Output
  • Low Start-Up Current of 130 µA and 1.4-mA Typical Run Current
  • Over-Current Shutdown
  • Digitally Controlled Over-Current/Retry Feature
  • Undervoltage Lockout With Hysteresis
  • APPLICATIONS
    • High Efficiency Cascaded Converters
    • Inverters
    • Electronic Ballasts
    • Uninterruptable Power Supplies (UPS)
    • AC or DC Links

The UCC28089 is a versatile BiCMOS controller for dc-to-dc or off-line fixed-frequency switching power supplies. The UCC28089 has dual alternating output stages in dual-alternating push-pull configuration. Both outputs switch at half the oscillator frequency using a toggle flip-flop and duty cycle is limited to less than 50%.

The UCC28089 is optimized for use as the primary-side companion controller for a cascaded converter that has secondary-side control. The device incorporates dead-time programming. The synchronization output also provides dead-time information. The retry and soft-start duration scales with the oscillator clock frequency for high performance fault recovery.

The UCC28089 also provides primary side under-voltage protection (UVLO), and over-current protection. Both the soft start and retry after fault durations scale with oscillator frequency for high performance. The turn-on/off UVLO thresholds are 10.5 V/8.0 V.

The UCC28089 is a versatile BiCMOS controller for dc-to-dc or off-line fixed-frequency switching power supplies. The UCC28089 has dual alternating output stages in dual-alternating push-pull configuration. Both outputs switch at half the oscillator frequency using a toggle flip-flop and duty cycle is limited to less than 50%.

The UCC28089 is optimized for use as the primary-side companion controller for a cascaded converter that has secondary-side control. The device incorporates dead-time programming. The synchronization output also provides dead-time information. The retry and soft-start duration scales with the oscillator clock frequency for high performance fault recovery.

The UCC28089 also provides primary side under-voltage protection (UVLO), and over-current protection. Both the soft start and retry after fault durations scale with oscillator frequency for high performance. The turn-on/off UVLO thresholds are 10.5 V/8.0 V.

Descargar Ver vídeo con transcripción Video

Documentación técnica

star =Principal documentación para este producto seleccionada por TI
No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 2
Tipo Título Fecha
* Data sheet Primary-Side Push-Pull Oscillator with Dead-Time Control datasheet (Rev. A) 25 ago 2006
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018

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
SOIC (D) 8 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

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

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