UCC28910 Flyback Switcher

TI's 700 V flyback switcher with constant-voltage constant-current and primary-side control

Image of Texas Instruments' UCC28910 Flyback Switcher Texas Instruments' UCC28910 is dedicated to isolated flyback power supplies and provides output voltage and current regulation without the use of an optical coupler. The device incorporates a 700 V power FET and a controller that processes operating information from the auxiliary flyback winding and from the power FET to provide 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 that is dynamically adjusted, allows very low stand by power.

Features
  • 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 enable best-in-class <30 mW standby power
  • 115 kHz maximum switching frequency enables high power density designs
  • Valley switching and frequency dithering to ease EMI compliance
  • Thermal shut down
  • Low-line and output over voltage protection

UCC28910 Flyback Switchers

ImageManufacturer Part NumberDescriptionAvailable Quantity
UCC28910D datasheet linkIC OFF-LINE SWITCH PWM 7SOICUCC28910DIC OFF-LINE SWITCH PWM 7SOIC108 - Immediate
5250 - Factory Stock
UCC28910D product page link
UCC28910DR datasheet linkIC OFF-LINE SWITCH PWM 7SOICUCC28910DRIC OFF-LINE SWITCH PWM 7SOIC150 - Immediate
2500 - Factory Stock
UCC28910DR product page link
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Published: 2014-07-22