Startseite Energiemanagement AC/DC & DC/DC converters (integrated FET)
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AC/DC & DC/DC converters (integrated FET)

UCC28910

AKTIV

700V Flyback-Switcher mit Konstantspannungs-Konstantstrom und primärseitiger Regelung

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Datenblatt

UCC28910

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Iout (max) (A) 0.6 Vin (min) (V) 20 Vin (max) (V) 450 Topology Buck, Flyback Switching frequency (min) (kHz) 0.42 Switching frequency (max) (kHz) 115 Features Current limiting, Green mode, High voltage startup, High-voltage startup, Input line monitor, Integrated Switch, Leading edge blanking, Light load efficiency, Light-load efficiency, Low power, Overcurrent protection, Soft start Control mode Current, Primary-side regulation, Voltage Vout (min) (V) 3.3 Vout (max) (V) 24 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0235
Iout (max) (A) 0.6 Vin (min) (V) 20 Vin (max) (V) 450 Topology Buck, Flyback Switching frequency (min) (kHz) 0.42 Switching frequency (max) (kHz) 115 Features Current limiting, Green mode, High voltage startup, High-voltage startup, Input line monitor, Integrated Switch, Leading edge blanking, Light load efficiency, Light-load efficiency, Low power, Overcurrent protection, Soft start Control mode Current, Primary-side regulation, Voltage Vout (min) (V) 3.3 Vout (max) (V) 24 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0235
SOIC (D) 7 29.4 mm² 4.9 x 6
  • Constant-Voltage (CV) and Constant-Current (CC) Output Regulation Without Optical-Coupler
  • ±5% Output Voltage Regulation Accuracy
  • ±5% Output Current Regulation With AC Line and Primary Inductance Tolerance Compensation
  • 700-V Start-Up and Smart Power Management Enables <30-mW Standby Power
  • 115-kHz Maximum Switching Frequency Design for High-Power Density
  • Valley Switching and Frequency Dithering to Ease EMI Compliance
  • Thermal Shut Down
  • Low Line and Output Over-Voltage Protection
  • Constant-Voltage (CV) and Constant-Current (CC) Output Regulation Without Optical-Coupler
  • ±5% Output Voltage Regulation Accuracy
  • ±5% Output Current Regulation With AC Line and Primary Inductance Tolerance Compensation
  • 700-V Start-Up and Smart Power Management Enables <30-mW Standby Power
  • 115-kHz Maximum Switching Frequency Design for High-Power Density
  • Valley Switching and Frequency Dithering to Ease EMI Compliance
  • Thermal Shut Down
  • Low Line and Output Over-Voltage Protection

The UCC28910 and UCC28911 are high-voltage flyback switchers that provide output voltageand current regulation without the use of an optical coupler. Both devices incorporate a 700-Vpower FET and a controller that process operating information from the flyback auxiliary windingand power FET to provide a precise output voltage and current control. The integrated high-voltage current source for startup that is switched off during device operation, and the controller current consumption is dynamically adjusted with load. Both enablethe very low stand-by power consumption.

Control algorithms in the UCC28910 and UCC28911, combining switching frequency and peakprimary current modulation, allow operating efficiencies to meet or exceed applicable standards.Discontinuous conduction mode (DCM) with valley switching is used to reduce switching losses.Built-in protection features help to keep secondary and primary component stress levels in check across the operating range. The frequency jitter helps to reduce EMI filter

The UCC28910 and UCC28911 are high-voltage flyback switchers that provide output voltageand current regulation without the use of an optical coupler. Both devices incorporate a 700-Vpower FET and a controller that process operating information from the flyback auxiliary windingand power FET to provide a precise output voltage and current control. The integrated high-voltage current source for startup that is switched off during device operation, and the controller current consumption is dynamically adjusted with load. Both enablethe very low stand-by power consumption.

Control algorithms in the UCC28910 and UCC28911, combining switching frequency and peakprimary current modulation, allow operating efficiencies to meet or exceed applicable standards.Discontinuous conduction mode (DCM) with valley switching is used to reduce switching losses.Built-in protection features help to keep secondary and primary component stress levels in check across the operating range. The frequency jitter helps to reduce EMI filter
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Technische Dokumentation

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Typ Titel Datum
* Data sheet UCC28910, UCC28911 High-Voltage Flyback Switcher with Primary-Side Regulation and Output Current Control datasheet (Rev. D) PDF | HTML 19 Dez 2016
Technical article How an upside-down buck offers a topology alternative to the non-isolated flyback PDF | HTML 26 Feb 2024
Application note Flyback Aux Winding OVP and UVLO Fault Sensing Design and Troubleshooting Tips PDF | HTML 31 Aug 2021
Technical article Overcoming common design challenges in an UV sterilization box system PDF | HTML 27 Jul 2020
White paper Power Electronics in Motor Drives: Where is it? (Rev. A) 01 Okt 2019
Test report PMP21384: Universal AC Input Integrated FET Buck Converter Reference Design 19 Jun 2018
Technical article Making a solar inverter more reliable than the sun PDF | HTML 01 Aug 2017
Technical article Powering the IoT PDF | HTML 26 Jan 2017
Application note Troubleshooting TI PSR controllers 03 Okt 2016
Design guide Wi-Fi Enabled Level 1 Level 2 Electric Vehicle Service Equipment Design Guide 16 Aug 2016
Application note Non-Isolated High-Side Buck Converter With UCC28910 01 Jun 2016
White paper Redefining power management through high-voltage innovation 12 Nov 2015
White paper Control Challenges for Low Power AC/DC Converters 02 Okt 2015
White paper Control Challenges for Low Power AC/DC Converters (PPT) 02 Okt 2015
Technical article Designing multiple output converters with primary side sensing PDF | HTML 04 Aug 2015
EVM User's guide Using the UCC28910 EVM-526 (Rev. A) 08 Aug 2013

Design und Entwicklung

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Evaluierungsplatine

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Benutzerhandbuch: PDF
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Evaluierungsplatine

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The UCC28911EVM-718 evaluation module is an offline Flyback power supply that provides isolated output voltage and current regulation without the use of an optocoupler and secondary-side feedback components. The input accepts a voltage range of 85VAC to 265VAC, 47Hz to 64Hz. The evaluation module (...)

Benutzerhandbuch: PDF
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Support-Software

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Diese 5-V-/1,2-A-Adapterlösung ist vollständig getestet und entspricht den EMI- und EMV-Sicherheitsanforderungen (CE, RE). Sie implementiert einen hocheffizienten primärseitigen Controller UCC28910. Die Effizienz des Designs entspricht Energy Star 6 und ist so ausgelegt, dass es in ein Gehäuse mit (...)
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AC/DC & DC/DC converters (integrated FET)
UCC28910 — 700V Flyback-Switcher mit Konstantspannungs-Konstantstrom und primärseitiger Regelung
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