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

UCC2813-4

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PWM de 1 MHz con modo de corriente BiCMOS de baja potencia y bajo consumo, UVLO de 12.5 V/8.3 V, cic

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UCC2813-4

ACTIVO
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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) (%) 50
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) (%) 50
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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* 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 A 300-W, Universal Input, Isolated PFC Power Supply for LCD TV Applications (Rev. B) 19 mar 2009
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

UCCX804 & UCCx813-4 TINA-TI Startup Reference Design

SLUM226.TSC (666 KB) - TINA-TI Reference Design
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Modelo de simulación

UCCX804 & UCCx813-4 TINA-TI Steady State Reference Design

SLUM227.TSC (667 KB) - TINA-TI Reference Design
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Modelo de simulación

UCCX804 & UCCx813-4 TINA-TI Transient Spice Model

SLUM228.ZIP (28 KB) - TINA-TI Spice Model
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Modelo de simulación

UCCx804 & UCCx813-4 Unencrypted PSpice Transient Model

SLUM515.ZIP (6 KB) - PSpice Model
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Modelo de simulación

UCCx804, UCCx813-4 Families PSpice Transient Model (Rev. B)

SLUM082B.ZIP (88 KB) - PSpice Model
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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
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

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

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