SI1128
SI1128 is High Precision CC/CV Primary-Side Controller manufactured by SANY Semiconductor.
High Precision CC/CV Primary-Side Controller
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
- Built-in Leading Edge Blanking (LEB)
- Cycle-by-Cycle Current Limiting
- VDD Under-Voltage lockout (UVLO)
- VDD Over-Voltage Protection(OVP)
APPLICATIONS
AC/DC offline SMPS for
- Cell Phone Charger
- Digital Cameras Charger
- Small Power Adapter
- Auxiliary Power for PC, TV etc.
- Linear Regulator/RCC Replacement SI1128 is offered in SOT23-6 package.
TYPICAL APPLICATIONS
PIN CONFIGURATION
The pin map is shown as below for SOT23-6. pin order in schem is for demonstration not for real
Pin order is oriented by marking http://.szsemi.
TEL:0755-36858333
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GENERAL...
