The ZSLS7031 is a primary-side controlled, peak-current-mode high-brightness LED flyback driver that supports both isolated and non-isolated designs with active power factor correction (PFC). The device works at a constant frequency in discontinuous conduction mode to provide constant power to the output. It eliminates the need for an opto-coupler, TL431 shunt regulator, or any other type of secondary-side feedback device. It operates from a wide input voltage range of 85VAC to 265VAC. The ZSLS7031 integrates over-current and over-voltage protection, as well as a thermal shutdown to halt the switching action in the event of abnormally high operating temperatures.


  • High efficiency
  • Minimum bill of materials
  • Small form-factor package
  • No loop compensation required
  • Isolated and non-isolated applications
  • Power factor PF > 0.95 depending on application
  • Wide application input voltage range: 85V to 265VAC
  • Internal over-temperature protection
  • Output over-voltage protection (OVP)
  • Output over-current protection (OCP) on primary side

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Range Carrier Type Buy Sample
ZSLS7031ZI1R Obsolete PMG8 MSOP 8 -45 to 105°C Reel

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
ZSLS7031 Datasheet Datasheet PDF 1.02 MB Jan 25, 2016
ZSLS7031 Short-form Datasheet Short Form Datasheet PDF 68 KB Jan 25, 2016
User Guides & Manuals
ZSLS7031KIT-D1 Demonstration Kit Description Manual PDF 589 KB Apr 21, 2016
Application Notes & White Papers
ZSLS7031 Application Note - Typical LED Driver Application Using Flyback Topology Application Note PDF 200 KB Apr 21, 2016
PDN-2017-005-01 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 106 KB Jun 29, 2017
IDT CAD Altium Libraries for AID Products Rev 20160819 PCB Design Files ZIP 1.20 MB Aug 18, 2016

Evaluation Boards