UCC3813-0

AKTIV

Sparsamer BICMOS 1MHz-Strommodus-PWM mit 7,2V/6,9V UVLO und 100 % Tastverhältnis, 0C bis 70C

Produktdetails

Vin (max) (V) 11 Operating temperature range (°C) 0 to 70 Control mode Current Topology Boost, Flyback Rating Catalog Duty cycle (max) (%) 100
Vin (max) (V) 11 Operating temperature range (°C) 0 to 70 Control mode Current Topology Boost, Flyback Rating Catalog 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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Technische Dokumentation

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Typ Titel Datum
* Data sheet UCCx813-x Low-Power Economy BiCMOS Current-Mode PWM datasheet (Rev. F) PDF | HTML 12 Mai 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 Mär 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
User guide UCC3813 Dual Output Boost Converter 09 Okt 2003
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

Design und Entwicklung

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Simulationsmodell

UCCx800 & UCCx813-0 Unencrypted PSpice Transient Model

SLUM512.ZIP (6 KB) - PSpice Model
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UCCx800 TINA-TI Start-Up Reference Design

SLUM191.TSC (860 KB) - TINA-TI Reference Design
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UCCx800 TINA-TI Steady-State Reference Design

SLUM190.TSC (862 KB) - TINA-TI Reference Design
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UCCx800 TINA-TI Transient Spice Model

SLUM192.ZIP (28 KB) - TINA-TI Spice Model
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UCCx813-0, UCCx800 Families PSpice Transient Model (Rev. B)

SLUM068B.ZIP (88 KB) - PSpice Model
Gehäuse Pins Herunterladen
SOIC (D) 8 Optionen anzeigen
TSSOP (PW) 8 Optionen anzeigen

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