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SI1128 Datasheet High Precision CC/CV Primary-Side Controller

Manufacturer: SANY Semiconductor

Datasheet Details

Part number SI1128
Manufacturer SANY Semiconductor
File Size 1.60 MB
Description High Precision CC/CV Primary-Side Controller
Datasheet download datasheet SI1128 Datasheet

General Description

The SI1128 is an excellent primary side feedback controller, which integrates several functions of protections.

It minimizes the components counts and is available in a tiny SOT-26 package.

Those make it an ideal design for low cost applications.

Overview

SI1128 High Precision CC/CV Primary-Side Controller.

Key Features

  • 5% Constant Voltage Regulation, 5%Constant Current Regulation at Universal AC input.
  • Primary-side Sensing and Regulation Without TL431 and Opto-coupler.
  • Low Start-up Current: 1μA (Typical).
  • Low Static Current: 300μA (Typical).
  • Programmable CV and CC Regulation.
  • Adjustable Constant Current and Output Power Setting.
  • Built-in Secondary Constant Current Control with Primary Side Feedback.
  • Peak-Current-Mode Control.
  • Compensates for transformer inductance.