FAN602
FAN602 is Offline Quasi-Resonant PWM Controller manufactured by Fairchild Semiconductor.
Features
- High Efficiency Across Wide Input and Output
Conditions in a Small Form Factor
- Quasi-Resonant Switching Operation with
Programmable Maximum Blanking Frequency Range (60 k Hz~ 140 k Hz)
- User Configurable Burst Mode Entry and Exit to
Maximize Light Load Efficiency and Minimize Audible Noise
- Adaptive Burst Mode Entry Level for Adaptive
Charger Application
- m WSaver® Technology for Ultra Low Standby
Power Consumption (<20 m W)
- Forced and Inherent Frequency Modulation of
Valley Switching for Low EMI Emissions and mon Mode Noise
- Built-In and User Configurable Over-Voltage
Protection (OVP), Under-Voltage Protection (UVP) and Over-Temperature Protection (OTP)
- Fully Programmable Brown-In and Brownout
Protection
- Precise Constant Output Current Regulation with
Programmable Line pensation
- Built-In High-Voltage Startup to Reduce External ponents
- 10 Lead SOIC JEDEC
Description
The FAN602 is an advanced PWM controller aimed at achieving power density of ≥10W/in3 in universal input range AC/DC flyback isolated power supplies. It incorporates Quasi-Resonant (QR) control with proprietary Valley Switching with a limited frequency variation. QR switching provides high efficiency by reducing switching losses while Valley Switching with a limited frequency variation bounds the frequency band to overe the inherent limitation of QR switching.
FAN602 features m WSaver® burst mode operation with extremely low operating current (300 μA) and significantly reduces standby power consumption to meet the most stringent efficiency regulations such as Energy Star’s 5-Star Level and Co C Tier II specifications.
FAN602 includes several user configurable features aimed at optimizing efficiency, EMI and protections. FAN602 has a programmable blanking frequency range that provides flexibility in choosing noise rejection in targeted frequency zones. It incorporates userconfigurable minimum peak current, which allows controlling the burst mode entry/exit power level, thereby...
