ST8328 10W Flyback Controller
Specifications
Product details
Overview
The ST8328 is a DOE Level VI compliant primary-side feedback quasi-resonant (QR) AC/DC power controller for low-power applications. It integrates a 650V/2A high-voltage power MOSFET with a maximum output power of 10W, targeting chargers, adapters and LED drivers. It achieves ±5% CV/CC regulation accuracy and standby power consumption below 30mW; built-in line-drop compensation is provided in CV mode, and quasi-resonant control delivers high efficiency and excellent EMI performance, meeting DOE Level VI energy standards. The IC integrates comprehensive protection features including VDD under-voltage lockout (UVLO), VDD over-voltage protection, soft-start, cycle-by-cycle over-current protection, all-pin floating protection, built-in leading-edge blanking, VDD clamp protection and over-temperature protection.
Features
- Meets DOE Level VI energy efficiency standard
- Primary-Side Regulation (PSR) quasi-resonant (QR) control for high efficiency; no optocoupler or TL431 required
- ±5% CV/CC regulation accuracy
- High-voltage start-up; standby power consumption below 30mW
- Integrated 650V high-voltage MOSFET
- Maximum output power 10W
- Built-in cable-drop compensation in CV mode
- Built-in soft-start
- All-pin floating protection
- Output over-voltage protection
- Cycle-by-cycle current limiting
- Built-in leading-edge blanking
- VDD UVLO, over-voltage protection and clamp
- Over-temperature protection
- High-voltage start-up eliminates the startup resistor
Typical Applications
- Chargers
- Adapters
- LED lighting
