Datasheet4U Logo Datasheet4U.com

UPSRB03 - HIGH PRECISION CC/CV PRIMARY SIDE SWITCHING REGULATOR

Description

The UTC UPSRB03 is a primary control unit for switch mode charger and adapter applications.

The controlled variable is transferred by an auxiliary winding from the secondary to the primary side.

The device uses multi-mode operations to achieve high performance and high efficiency.

Features

  • S.
  • Multi-Mode control for cancel audio noise.
  • ±5% constant voltage regulation at universal AC input.
  • Primary side control without TL431 and opto-coupler.
  • High precision constant current regulation at universal AC input.
  • Programmable CV and CC regulation.
  • Eliminates control loop compensation circuitry.
  • Flyback topology in DCM operation.
  • Driver BJT switch.
  • Built-in Line CC compensation.
  • Built-in leading edge blanking.
  • Driver soft start.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
UPSRB01 HIGH PRECISION CC/CV PRIMARY SIDE SWITCHING REGULATOR Unisonic Technologies
UPSRB01A HIGH PRECISION CC/CV PRIMARY SIDE SWITCHING REGULATOR Unisonic Technologies
UPSRB01B HIGH PRECISION CC/CV PRIMARY SIDE SWITCHING REGULATOR Unisonic Technologies
UPSRB02 HIGH PRECISION CC/CV PRIMARY SIDE SWITCHING REGULATOR Unisonic Technologies
UPSR100 HIGH PRECISION CC/CV PRIMARY SIDE REGULATOR Unisonic Technologies

Other Datasheets by Unisonic Technologies

Part Number Description
UPSR104 HIGH PRECISION CC/CV PRIMARY-SIDE PWM CONTROLLER
UPSR105 POWER SUPPLY CONTROLLER
UPSR107 HIGH PRECISION CC/CV PRIMARY-SIDE PWM CONTROLLER
UPSR108 HIGH PRECISION CC/CV PRIMARY-SIDE PWM CONTROLLER
UPS601 HIGH PERFORMANCE CURRENT MODE POWER SWITCH

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
UNISONIC TECHNOLOGIES CO., LTD UPSRB03 Preliminary LINEAR INTEGRATED CIRCUIT HIGH PRECISION CC/CV PRIMARY SIDE SWITCHING REGULATOR  DESCRIPTION The UTC UPSRB03 is a primary control unit for switch mode charger and adapter applications. The controlled variable is transferred by an auxiliary winding from the secondary to the primary side. The device uses multi-mode operations to achieve high performance and high efficiency. Device operations in PFM in CC mode at large load condition and it operates in PWM with frequency reduction at light/medium load which can cancel audio noise. The UTC UPSRB03 operates in primary-side sensing and regulation. Opto-coupler and TL431 could be eliminated. It also eliminates the need of loop compensation circuitry while maintaining stability.
Published: |