The SD6804D is a highly integrated offline power switch IC manufactured by Silan Microelectronics. It is designed for low-power AC/DC adapter and charger applications. This IC integrates a current-mode PWM controller with a power MOSFET, offering a simple and cost-effective solution for energy-efficient power supplies.
Applications:
- Mobile phone chargers
- Power adapters for portable devices
- Standby power supplies for home appliances
- LED lighting power supplies
- Small power adapters
Features:
- Integrated high-voltage power MOSFET
- Current-mode PWM control
- Low standby power consumption
- Overcurrent protection (OCP) with auto-recovery
- Overvoltage protection (OVP) with latch-off
- Overtemperature protection (OTP) with auto-recovery
- Short circuit protection (SCP) with auto-recovery
- Built-in soft start function
- Frequency jittering for improved EMI performance
Benefits:
- Cost-Effective Solution: The high integration level minimizes external components, reducing the overall cost of the power supply.
- High Efficiency: Current-mode PWM control optimizes efficiency, reducing energy consumption and heat dissipation.
- Enhanced Reliability: Comprehensive protection features ensure reliable operation and prevent damage to the power supply and connected devices.
- Low Standby Power: The SD6804D meets stringent energy efficiency standards with its low standby power consumption.
- Simplified Design: The integrated MOSFET and controller simplify the design process, reducing development time.
The SD6804D employs a quasi-resonant (QR) switching scheme to further enhance efficiency and reduce EMI. The built-in frequency jittering function reduces EMI emissions, facilitating compliance with regulatory standards. The soft-start function minimizes stress on the MOSFET during startup, improving reliability. The device is typically available in DIP-8 and SOP-8 packages.
Typical Technical Specifications:
- Operating Voltage: 85VAC to 265VAC
- Output Power: Up to 7W
- Switching Frequency: 65kHz
- Standby Power: <0.3W
- Protection: OCP, OVP, OTP, SCP
- Package: DIP-8, SOP-8
