onsemi FSL5x8A/H is an integrated peak-current-mode controlled pulse width modulation (PWM) power switch specifically designed for off-line switch-mode power supplies. The PWM controller includes an advanced soft-start, frequency hopping, optimized gate driver, internal transconductance amplifier, temperature-compensated precise current source for loop compensation, and enhanced self-protection circuitry. Compared with a discrete MOSFET and PWM controller solution, the FSL5x8A/H allows users to reduce total cost, component count, size, and weight while simultaneously increasing efficiency, productivity, and system reliability. This device provides a basic platform for the cost-effective design of both isolated and non-isolated flyback converters.
Features
- Rugged 800 V FET with 3.8 Ω or 6.3 Ω typical RDS(ON) with built-in HV current source for start-up
- Fine-tunable skip mode operation
- Integrated line compensation
- Line brown-in, brown-out function
- Line overvoltage protection (LOVP)
- FSW options: 100 kHz and 130 kHz
- Seamless implementation of isolated and non-isolated topologies
- Peak current:
- FSL538A = 860 mA and FSL538H = 660 mA
- FSL518A = 610 mA and FSL518H = 460 mA
Benefits
- Easy and rugged design with minimal external components
- High efficiency across all operating conditions
- Constant maximum power limitation
- Robust design in case of poor AC grid network
- Allows design trade-offs between space and efficiency
- Design flexibility
- Design versatility
Applications
- Auxiliary and standby power supplies
- Major home appliances power supplies
- Low to medium power chargers and adapters
- White goods (air conditioners, refrigerators, washing machines, and others)
- E-meters
- Industrial equipment
- Consumer equipment power supplies
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onsemi FSL5x8A/H is an integrated peak-current-mode controlled pulse width modulation (PWM) power switch specifically designed for off-line switch-mode power supplies. The PWM controller includes an advanced soft-start, frequency hopping, optimized gate driver, internal transconductance amplifier, temperature-compensated precise current source for loop compensation, and enhanced self-protection circuitry. Compared with a discrete MOSFET and PWM controller solution, the FSL5x8A/H allows users to reduce total cost, component count, size, and weight while simultaneously increasing efficiency, productivity, and system reliability. This device provides a basic platform for the cost-effective design of both isolated and non-isolated flyback converters.
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