ON Semiconductor FSL136HRLX Integrated Circuit

The ON Semiconductor FSL136HRLX is a versatile and efficient integrated circuit designed for power supply applications. It is a member of the Green Mode Fairchild Power Switch (FPS) product family, which is renowned for its energy-saving features and exceptional performance in switched-mode power supplies (SMPS). This particular model is optimized for use in low-power applications, making it an ideal choice for designers looking to enhance energy efficiency in their products.

The FSL136HRLX incorporates a pulse width modulation (PWM) controller and a high-voltage power MOSFET in a single package. This integration facilitates reduced component count, smaller board space, and lower system costs. The device is capable of operating in green mode, which significantly reduces standby power consumption by modulating the switching frequency at light loads. This feature is especially beneficial for applications that require compliance with power conservation standards.

Key features of the FSL136HRLX include its burst-mode operation, which ensures high efficiency at light loads, and its internal high-voltage startup circuit that minimizes power loss during the initial power-up phase. The device also offers various protection mechanisms to enhance system reliability, such as over-voltage protection (OVP), over-load protection (OLP), and thermal shutdown (TSD). The built-in soft-start function limits inrush current and contributes to a smooth power-up sequence.

The FSL136HRLX is designed with a fixed switching frequency of 67 kHz, which strikes a balance between efficiency and manageable EMI levels. Its integrated frequency jitter function helps to further reduce EMI emissions, making it easier to meet regulatory requirements. The device is available in a compact 8-pin SOP package, which is suitable for use in a wide range of applications, including AC/DC adapters, auxiliary power supplies, and standby power for TVs and monitors.

Overall, the ON Semiconductor FSL136HRLX is a high-performance solution for power supply designers who are looking to optimize energy efficiency without compromising on reliability or functionality. Its combination of integrated features and protections makes it a smart choice for a variety of low-power applications.