Applications such as switching mode power supplies (SPMS) for smart metering, or auxiliary power supply for 3-Phase input industrial systems, often need to meet three phase input voltage or unstable single phase input voltage requirements.
Fairchild’s FSL4110 is the world’s first 1000 V integrated power switch, offering the industry’s highest breakdown voltage in a single package for designing highly reliable switching mode power supplies for smart meter, appliance and industrial systems. The new FSL4110LR integrated power switch eliminates the need for external components found in competing solutions, enabling power designers to easily meet their time to market and reduce bill of materials.
The FSL4110LR integrates a VDMOS SenseFET (BVDSS=1000V) with built in line compensation for wide input voltage range from 45Vac to 460Vac. It also includes built-in input over voltage protection and a safe auto-restart mode for all protection conditions. With the world’s highest breakdown voltage, the FSL4110LR is an excellent solution for any designer implementing flyback converters that need to meet three phase input voltage or unstable single phase input voltage requirements.
For system reliability, FSL4110LR is the only solution of its kind that provides Abnormal Over Current Protection (AOCP), which protects the power converter from transformer abnormalities and is particularly important for smart metering applications. FSL4110LR also provides various protection functions such as Input OVP, AOCP, OLP, OVP, TSD in Auto-Restart mode.
- Built-in Avalanche Rugged 1000 V SenseFET
- Precise Fixed Operating Frequency: 50 kHz
- VCC can be supplied from either bias- winding or self-biasing.
- Soft Burst-Mode Operation Minimizing Audible Noise
- Random Frequency Fluctuation for Low EMI
- Pulse-by-Pulse Current Limit
- Various Protection Functions: Overload Protection (OLP), Over-Voltage Protection (OVP), Abnormal Over-Current Protection (AOCP), Internal Thermal Shutdown (TSD)with Hysteresis. Under-Voltage Lockout (UVLO) and Line Over-Voltage Protection (LOVP) with Hysteresis.
- Built-in Internal Startup and Soft-Start Circuit
- Fixed 1.6 s Restart Time for Safe Auto- Restart Mode of All Protections
- SMPS for Smart Metering
- Auxiliary Power Supply for 3-Phase Input Industrial Systems