ACT511 Description
The ACT511 is a high performance peak current mode PWM controller. ACT511 applies ActiveQRTM and frequency foldback technique to reduce EMI and improve efficiency. ACT511’s maximum switching frequency is set at 90kHz.
ACT511 Key Features
- Quasi-Resonant Operation
- Adjustable up to 75kHz Switching Frequency
- Accurate OCP/OLP Protection
- Integrated Patented Frequency Foldback
- Integrated Patented Line and Primary
- Built-in Soft-Start Circuit
- Line Under-Voltage, Thermal, Output Over
- Current Sense Resistor Short Protection
- Transformer Winding Short Protection
- 100mW Standby Power
ACT511 Applications
- AC/DC Adaptors/Chargers for Cell Phones
- Adaptors for Portable Media Player, DSCs