BL8891B Power Management IC, AC/DC Converter, 15W SSR Flyback Controller, Integrated MOSFET, DIP7

The BL8891B is a high-efficiency AC/DC converter power management IC with an integrated MOSFET, designed for offline flyback power supplies using secondary-side regulation (SSR). It supports up to 15W output power and integrates power-on soft-start and comprehensive protection functions, making it suitable for compact and reliable consumer power designs.

Key Specifications

• Maximum Output Power (Pout): 15W

• Drive Device: Integrated MOSFET

• Control Mode: SSR (Secondary-Side Regulation)

• Standby Power Consumption: < 0.15W

• Power-On Soft-Start: Yes

• Over-Voltage Protection (OVP): Yes

• Package: DIP7

Applications

• Power adapters

• Set-top box (STB) power supplies

• Small home appliance power supplies

Features

• Integrated power MOSFET

• Secondary-side regulation for improved output accuracy

• Built-in soft-start for reduced inrush current

• Low standby power consumption

• Complete protection functions