IC manufacturers Texas Instruments

IC manufacturers (99)

Texas Instruments UCC28910

700V Flyback Switcher with Constant-Voltage Constant-Current and Primary-side Control

Overview

TopologyOther Topology
Switching frequency105-125 kHz
IC revisionVersion control disabled

Description

The UCC28910 and UCC28911 are high-voltage flyback switchers that provide output voltage and current regulation without the use of an optical coupler. Both devices incorporate a 700-V power FET and a controller that process operating information from the flyback auxiliary winding and 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 enable the very low stand-by power consumption.

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 Compensation700-V Start-Up and Smart Power Management Enables <30-mW Standby Power115-kHz Maximum Switching Frequency Design for High-Power DensityValley Switching and Frequency Dithering to Ease EMI ComplianceThermal Shut DownLow Line and Output Over-Voltage Protection

Typical applications

  • Industrial Embedded Energy Monitoring
  • Home Security
  • Home Automation
  • WI-FI Power Strip/Energy Monitor
  • Appliances

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC max.
(Ω)
fres
(MHz)
Version Samples
7447462471SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-TI Radial Leaded Wire Wound Inductor 470 0.35 0.4 2.4 3.4 Heat Shrinking Tube
Order Code Data­sheet Simu­lation
7447462471SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC max.
(Ω)
fres
(MHz)
Version Samples