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

UCC2813-3

ACTIVO

PWM de 1 MHz con modo de corriente BiCMOS de baja potencia y bajo consumo, UVLO de 4.1 V/3.6 V, cicl

Detalles del producto

Vin (max) (V) 11 Operating temperature range (°C) -40 to 85 Control mode Current Topology Boost, Flyback, Forward Rating Catalog Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Fixed frequency, Leading edge blanking, Multi-topology, Soft start Duty cycle (max) (%) 100
Vin (max) (V) 11 Operating temperature range (°C) -40 to 85 Control mode Current Topology Boost, Flyback, Forward Rating Catalog Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Fixed frequency, Leading edge blanking, Multi-topology, Soft start Duty cycle (max) (%) 100
SOIC (D) 8 29.4 mm² 4.9 x 6 TSSOP (PW) 8 19.2 mm² 3 x 6.4
  • 100-µA typical starting supply current
  • 500-µA typical operating supply current
  • Operation to 1 MHz
  • Internal soft start
  • Internal fault soft start
  • Internal leading-edge blanking of the current-sense signal
  • 1-A totem-pole output
  • 70-ns typical response from current-sense to gate-drive output
  • 1.5% Tolerance Voltage Reference
  • Same Pinout as the UCC3802 device, UC3842 device, and UC3842A device families
  • 100-µA typical starting supply current
  • 500-µA typical operating supply current
  • Operation to 1 MHz
  • Internal soft start
  • Internal fault soft start
  • Internal leading-edge blanking of the current-sense signal
  • 1-A totem-pole output
  • 70-ns typical response from current-sense to gate-drive output
  • 1.5% Tolerance Voltage Reference
  • Same Pinout as the UCC3802 device, UC3842 device, and UC3842A device families

The UCC3813-x device family of high-speed, low-power integrated circuits contains all of the control and drive components required for off-line and DC-to-DC fixed-frequency current-mode switching power supplies with minimal parts count.

These devices have the same pin configuration as the UC384x device family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

The UCC3813-x device family offers a variety of package options, temperature-range options, choice of maximum duty cycle, and choice of critical voltage levels. Devices with lower reference voltage such as the UCC3813-3 and UCC3813-5 fit best into battery operated systems, while the higher reference and the higher UVLO hysteresis of the UCC3813-2 device and UCC3813-4 device make these ideal choices for use in off-line power supplies.

The UCC2813-x device series is specified for operation from –40°C to 85°C and the UCC3813-x device series is specified for operation from 0°C to 70°C.

The UCC3813-x device family of high-speed, low-power integrated circuits contains all of the control and drive components required for off-line and DC-to-DC fixed-frequency current-mode switching power supplies with minimal parts count.

These devices have the same pin configuration as the UC384x device family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

The UCC3813-x device family offers a variety of package options, temperature-range options, choice of maximum duty cycle, and choice of critical voltage levels. Devices with lower reference voltage such as the UCC3813-3 and UCC3813-5 fit best into battery operated systems, while the higher reference and the higher UVLO hysteresis of the UCC3813-2 device and UCC3813-4 device make these ideal choices for use in off-line power supplies.

The UCC2813-x device series is specified for operation from –40°C to 85°C and the UCC3813-x device series is specified for operation from 0°C to 70°C.

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Documentación técnica

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Tipo Título Fecha
* Data sheet UCCx813-x Low-Power Economy BiCMOS Current-Mode PWM datasheet (Rev. F) PDF | HTML 12 may 2020
Application note Conditioning a Switch-mode Power Supply Current Signal Using TI Op Amps (Rev. A) PDF | HTML 11 jun 2021
Application note Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B) 12 mar 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
Application note UCC38C42 Family of High-Speed BiCMOS Current-Mode PWM Controllers 07 feb 2002
Application note Differences Between the UCC3813 and the UCC3800 PWM Families 02 jun 2000
Application note DN-42A Design Considerations for Transitioning from UC3842 to the New UCC3802 05 sep 1999
Application note DN-62 Switching Power Supply Topology Voltage Mode vs. Current Mode 05 sep 1999
Application note U-111, Practical Considerations in Current Mode Power Supplies 05 sep 1999
Application note U-133A UCC3800/1/2/3/4/5 BiCMOS Current Mode Control IC's 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.

Modelo de simulación

UCC3803 PSpice Transient Model (Rev. B)

SLUM053B.ZIP (91 KB) - PSpice Model
Modelo de simulación

UCC3803 TINA-TI Transient Spice Model

SLUM219.ZIP (28 KB) - TINA-TI Spice Model
Modelo de simulación

UCC3803 TINA-TI Transient Start-Up Reference Design (Rev. A)

SLUM051A.TSC (195 KB) - TINA-TI Reference Design
Modelo de simulación

UCC3803 TINA-TI Transient Steady-State Ref Design (Rev. A)

SLUM052A.TSC (152 KB) - TINA-TI Reference Design
Modelo de simulación

UCCx803 & UCCx813-3 Unencrypted PSpice Transient Model

SLUM511.ZIP (6 KB) - PSpice Model
Diseños de referencia

PMP2187 — Diseño de referencia de regulador lineal de retorno para el Medical Pack (5.75 V a 10 mA)

Este diseño proporciona una salida aislada de 3.3 V, una de 2.5 V, otra de -5 V y dos de 5 V. Todas las salidas cuentan reguladores lineales de caída baja (LDO) que filtran el ruido para aplicaciones que requieren niveles de ruido bajos, como imágenes médicas y adquisición de datos.
Test report: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOIC (D) 8 Ultra Librarian
TSSOP (PW) 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

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.

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