FSL136HRLX

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The FSL136HRLX is a popular PMIC series of AC/DC converters and offline switchers, which offer extensive features and options to solve the power management requirements of a wide range of applications in consumer, industrial, automotive, computer, and telecommunications industries. The FSL136HRLX integrates high-efficiency power conversion with control functions like voltage and current regulation, overvoltage protection and soft start.

The FSL136HRLX can supply up to 1.2A continuous output and is available in input voltage ranges of 24V to 36V. It features analog current mode control and is capable of maintaining high efficiency at light loads.

The main components of the FSL136HRLX power converter include an input line transformer and a synchronous rectifier. The current reference trips the high frequency MOSFET-based bridge switch, and the output voltage is regulated by a voltage reference and a main error amplifier. The main error amplifier consists of a voltage controlled current source that feeds the rectified DC voltage to the output filter.

The FSL136HRLX system has a wide range of applications, such as battery charger, speaker power, small and medium appliance power, vehicle power supply, LED lighting, security systems, industrial automation, and medical equipment. The FSL136HRLX provides a comprehensive suite of features including high voltage operation, low quiescent current, low output overshoot and high efficiency. It also includes a high-resolution staircase dimming, which enables accurate control of output current and voltage.

The FSL136HRLX is generally used in high wattage applications, where the highest current levels and efficiency are required. The maximum output power is 150W, and it features various protection features such as overvoltage, undervoltage, and overcurrent.

The FSL136HRLX supports many different working modes, such as burst mode, discontinuous mode, forced on-time mode and single pulse-width mode. In burst mode, the output voltage is maintained using a single pulse-width cycle; the system is clocked off after the minimum on-time. In discontinuous mode, the time period between two pulses is kept constant, and the power is regulated by adjusting the duty cycle of the pulses. The forced on-time mode is used for constant frequency operation, where the output corresponding to the duty cycle of the pulses is adjusted. Finally, the single pulse-width mode relies on increasing or decreasing the pulse-width cycle to adjust the output.

The FSL136HRLX also offers adjustable precise and short on-time, fast output current settling, low output ripple and low EMI performance. It works on an operating temperature range of -40°C to 125°C and features various fault protection features such as Overvoltage, Undervoltage, Short Circuit and Thermal Shut Down.

The FSL136HRLX is an efficient, low-cost AC/DC converter and offline switcher suitable for a wide range of applications in consumer, industrial, automotive, computer, and telecommunications industries. It offers high-efficiency power conversion with control functions like voltage and current regulation, overvoltage protection, and soft start. It supports various working modes as well as adjustable precise and short on-time, fast output current settling, and low EMI performance.

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