The FSQ510, FSQ510H and FSQ510M are three products, including LDMOS integrated power switch, optimized for Valley Switching Converter (VSC), low EMI, high efficiency, extended Valley Switching, small frequency variation, etc.
The FSQ510, FSQ510H, and FSQ510M are integrated valley switching pulse width modulation (VS-PWM) controllers and SenseFETs specifically designed for offline switch-mode power supplies (SMPS). These devices utilize variable frequency control and inherent frequency modulation to achieve low EMI, while optimized gate drivers and internal soft-start ensure high efficiency. The controllers include an integrated oscillator, under-voltage lockout, leading-edge blanking, and self-protection circuitry.
| Internal High-Voltage SenseFET Drain Voltage | 700 V |
|---|---|
| Built-in Soft-Start Time | 5ms |
| Operating Junction Temperature Range | -40 to +140 °C |
| Thermal Shutdown Temperature | 130 to 150 °C |
They are designed for offline switch-mode power supplies (SMPS) for auxiliary power supplies in LCD TVs, monitors, PCs, and white goods.
The FSQ510H can handle a maximum output power of 6W under open-frame conditions at a universal line input.
The device includes a built-in soft-start time of 5ms.