Startseite Energiemanagement AC/DC & DC/DC controllers (external FET)
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AC/DC & DC/DC controllers (external FET)

UCC28250

AKTIV

Erweiterter Halbbrücken-/Vollbrücken-PWM-Controller mit Vorspannungsbetrieb

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Datenblatt

UCC28250

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Vin (max) (V) 17 Operating temperature range (°C) -40 to 125 Control mode Current, Voltage Topology Forward, Full bridge, Half bridge, Push pull Rating Catalog Duty cycle (max) (%) 100
Vin (max) (V) 17 Operating temperature range (°C) -40 to 125 Control mode Current, Voltage Topology Forward, Full bridge, Half bridge, Push pull Rating Catalog Duty cycle (max) (%) 100
TSSOP (PW) 20 41.6 mm² 6.5 x 6.4 VQFN (RGP) 20 16 mm² 4 x 4
  • Prebiased Start-up
  • Synchronous Rectifier Control Outputs With Programmable Delays (Including Zero Delay Support)
  • Voltage Mode Control With Input Voltage Feed-Forward or Current Mode Control
  • Primary or Secondary-Side Control
  • 3.3-V, 1.5% Accurate Reference Output
  • 1-MHz Capable Switching Frequency
  • 1% Accurate Cycle-by-Cycle Overcurrent Protection with Matched Duty Cycle Outputs
  • Programmable Soft-Start and Hiccup Restart Timer
  • Thermally Enhanced 4-mm × 4-mm QFN-20 Package and 20-pin TSSOP Package
  • Prebiased Start-up
  • Synchronous Rectifier Control Outputs With Programmable Delays (Including Zero Delay Support)
  • Voltage Mode Control With Input Voltage Feed-Forward or Current Mode Control
  • Primary or Secondary-Side Control
  • 3.3-V, 1.5% Accurate Reference Output
  • 1-MHz Capable Switching Frequency
  • 1% Accurate Cycle-by-Cycle Overcurrent Protection with Matched Duty Cycle Outputs
  • Programmable Soft-Start and Hiccup Restart Timer
  • Thermally Enhanced 4-mm × 4-mm QFN-20 Package and 20-pin TSSOP Package

The UCC28250 PWM controller is designed for high power density applications that may have stringent prebiased start-up requirements. The integrated synchronous rectifier control outputs target high-efficiency and high-performance topologies such as half-bridge, full-bridge, interleaved forward, and push-pull. The UCC27200 half-bridge drivers and UCC2732X MOSFET drivers used in conjunction with the UCC28250 provide a complete power converter solution.

Externally programmable soft-start, used in conjunction with an internal prebiased start-up circuit, allows the controller to gradually reach a steady-state operating point under all output conditions. The UCC28250 can be configured for primary or secondary-side control and either voltage or current mode control can be implemented.

The oscillator operates at frequencies up to 2 MHz, and can be synchronized to an external clock. Input voltage feedforward, cycle-by-cycle current limit, and a programmable hiccup timer allow the system to stay within a safe operation range. Input voltage, output voltage and temperature protection can be implemented. Dead time between primary-side switch and secondary-side synchronous rectifiers can be independently programmed.

The UCC28250 PWM controller is designed for high power density applications that may have stringent prebiased start-up requirements. The integrated synchronous rectifier control outputs target high-efficiency and high-performance topologies such as half-bridge, full-bridge, interleaved forward, and push-pull. The UCC27200 half-bridge drivers and UCC2732X MOSFET drivers used in conjunction with the UCC28250 provide a complete power converter solution.

Externally programmable soft-start, used in conjunction with an internal prebiased start-up circuit, allows the controller to gradually reach a steady-state operating point under all output conditions. The UCC28250 can be configured for primary or secondary-side control and either voltage or current mode control can be implemented.

The oscillator operates at frequencies up to 2 MHz, and can be synchronized to an external clock. Input voltage feedforward, cycle-by-cycle current limit, and a programmable hiccup timer allow the system to stay within a safe operation range. Input voltage, output voltage and temperature protection can be implemented. Dead time between primary-side switch and secondary-side synchronous rectifiers can be independently programmed.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet UCC28250 Advanced PWM Controller With Prebias Operation datasheet (Rev. D) PDF | HTML 28 Jun 2015
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note Differences Between the UCC28251 and UCC28250 and Evaluation of the UCC28251 in (Rev. A) 15 Feb 2013
EVM User's guide Using the UCC28250EVM-564 (Rev. A) 07 Okt 2011
EVM User's guide Using the UCC28250EVM-501 Half Bridge DC-DC Converter with Primary Side Control (Rev. B) 07 Dez 2010
Application note Designing UCC28250 as a Secondary Side Control with a Pre-Bias Condition 24 Nov 2010

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

UCC28250EVM-501 — Evaluierungsmodul für UCC28250 Erweiterter PWM-Motorcontroller auf primärseitiger Steuerung

The UCC28250EVM-501 is a fully assembled and tested circuit for evaluating the UCC28250 Advanced PWM Controller with Pre-Bias Operation. The UCC28250EVM-501 comprises a symmetrical half-bridge DC/DC converter, which converts a 36V to 72V DC input to a 3.3V DC output with a maximum 75W output power.
Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Evaluierungsplatine

UCC28250EVM-564 — Evaluierungsmodul für UCC28250 Adv.PWM-Controller mit vorgespannter Laststeuerung auf der Sekundärse

The UCC28250EVM-564 is a fully assembled and tested circuit for evaluating the UCC28250 Advanced PWM Controller with Pre-Bias Operation. The UCC28250EVM-564 comprises a symmetrical half bridge DC-DC converter which converts a 36V to 75V DC input to a 3.3V DC output with 100W maximum output power.
Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Simulationsmodell

UCC28250 Unencrypted PSPICE Average Model Package (Rev. A)

SLUM171A.ZIP (96 KB) - PSpice Model
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Berechnungstool

SLUC260 — UCC28250 Excel Design Tool

Unterstützte Produkte und Hardware

Unterstützte Produkte und Hardware

Produkte
AC/DC & DC/DC controllers (external FET)
UCC28250 — Erweiterter Halbbrücken-/Vollbrücken-PWM-Controller mit Vorspannungsbetrieb
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Referenzdesigns

PMP8878 — Referenzdesign für isoliertes DC/DC-Modul im 1/8-Brick-Format zur Stromversorgung von Telekommunikat

PMP8878 is a full-function 1/8th brick isolated DC/DC telecom power module based on UCC28250 advanced PWM controller. The reference design features secondary side control and hard switching full bridge power topology to deliver 12V/180W of output power operating across a wide range 40V-75V input (...)
Test report: PDF
Schaltplan: PDF
Gehäuse Pins Herunterladen
TSSOP (PW) 20 Optionen anzeigen
VQFN (RGP) 20 Optionen anzeigen
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Bestellen & Qualität

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  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
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