SI1128 Description
The SI1128 is an excellent primary side feedback controller, which integrates several functions of protections. It minimizes the ponents counts and is available in a tiny SOT-26 package. Those make it an ideal design for low cost applications.
SI1128 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
- pensates for transformer inductance tolerances
- pensates for cable voltage drop