Switching Power Supplies
AC Power Supplies
General-purpose AC power supplies are used in a wide variety of applications such as equipment for general consumers, office automation and communication devices. They are required to be highly efficient and compact, and to have low power consumption. This page provides information on Fuji Electric semiconductors that are ideal for general-purpose AC power supplies.
Flyback Converter Circuit Configuration
Forward Converter Circuit Configuration
Fuji Electric Power Semiconductor Products
Power Factor Correction ICs
Control Method |
Type Name | Input voltage |
Duty | Current sense |
Under-voltage lockout (ON/OFF) | Frequency | Maximum frequency |
Zero Current Detection |
FB open short protection |
Over voltage protection |
Remarks |
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Criticality mode PFC |
FA5590N | 10 – 26V | – | Negative | 9.6V/9.0V | Self-oscillation | Adjustable | Current sence | ✓ | Voltage-Limit by Pulse width |
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FA5591N | 13.0V/9.0V | ||||||||||
FA1A10N | 9.6V/8.8V | Fixed | |||||||||
FA1A11N | 12.4V/8.8V | ||||||||||
FA1A50N | 9.6V/8.8V | Voltage-Limit by Pulse width and Voltage-Limit(OVP) |
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FA1A60N | 12.5V/7.5V | Improve light load effciency, Cooperate with FA6B19N/20N/ 22N |
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FA1A61N | ✓ (Open protection only) |
Improve transient response, Cooperate with FA6B21N |
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FA5696N | 9.6V/9.0V | Adjustable | ✓ | ||||||||
FA1A00N | 9.6V/8.8V | Fixed | |||||||||
FA1A01N | 12.4V/8.8V | ||||||||||
FA1A21N | Positive | 17.3V/9.6V | Fixed | Auxiliary winding |
– | Voltage-Limit (VCC) | For fly Back Over load protection |
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FA1B00N | 10 – 24V | 13.0V/9.0V | Adjustable | ✓ | Voltage-Limit by Pulse width | Successor to FA5601N | |||||
FA1B10N NEW | Fixed | THD improvement function | |||||||||
Continuous mode PFC |
FA5502M | 10 – 28V | 94% | Negative | 16.5V/8.9V | Adjustable | 150kHz | – | – | Voltage-Limit (OVP) | |
FA5612N | 10 – 26V | 9.6V/9.0V | Choice 60/65kHz/jitter (50-70kHz) |
– | ✓ | Voltage-Limit by Pulse width |
Frequency diffusion function |
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FA5613N | 13.0V/9.0V |
Quasi-resonant Control ICs
Type Name | Input voltage |
Maximum frequency |
Overload protection |
Over voltage sense | Built-in start up circuit | Green mode function | Under-voltage lockout (ON/OFF) | Remarks |
---|---|---|---|---|---|---|---|---|
FA5570N | 10 to 28V | Max. frequency limitation 120kHz |
Auto-Recovery | – | 500V | Intermittent operation | 18V/8V | |
FA5571N | ZCD Pin | Over voltage protection Latch |
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FA5573N | Linear frequency reduction |
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FA5577N | VCC Pin | |||||||
FA5640N | 11 to 26V | Bottom skip control by on-off width detection | Auto-Recovery | ZCD Pin | Intermittent operation | 14V/8V | ||
FA5641N | Min. frequency limitation |
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FA5642N | 10V/8V | |||||||
FA5643N | 14V/8V | Min. frequency limitation Latch stop function (IS pin) |
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FA5644N | Timer-latch | |||||||
FA5648N | Auto-Recovery | For High SW frequency |
Quasi-resonant Control ICs
Brown out function |
Type Name | Duty | Input voltage | Frequency | Current sense | Over load protection |
Over power protection |
Over voltage protection |
Built-in start up circui | Green mode function | X-Cap discharge function |
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Built-in | FA8A00N | 83% | 12 – 24V | 65kHz | Positive | Auto-Recovery | 2Stage (OPP ratio 1:1.4*) |
Latch | 500V | Linearly frequency reduction + Intermittent operation | Built-in |
FA8A40N | 100kHz | ||||||||||
FA8A01N | 65kHz | Timer-latch | |||||||||
FA8A41N | 100kHz | ||||||||||
FA8B16N | 65kHz | Auto-Recovery | 2Stage (OPP ratio 1:1.5*) | ||||||||
FA8A27N | 10 – 28V | Timer-latch | 2Stage (OPP ratio 1:1.8*) |
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FA8A37N | |||||||||||
FA8A39N | |||||||||||
FA8A83N | 10 – 24V | 65kHz | Timer-latch | 1Stage | 650V | ||||||
FA8A86N | 100kHz | Auto-Recovery | - | ||||||||
Not built-in | FA5680N | 85% | 11 – 24V | 65kHz | Negative | Auto-Recovery | 1Stage | Latch | 750V | Linearly frequency reduction + Intermittent operation | |
FA5681N | Timer-latch | ||||||||||
FA8A60N | 83% | 10 – 24V | 65kHz | Positive | Auto-Recovery | 500V | |||||
FA8A64N | 100kHz | ||||||||||
FA8A61N | 65kHz | Timer-latch | |||||||||
FA8A65N | 100kHz | ||||||||||
FA8A70N | 65kHz | Auto-Recovery | Built-in | ||||||||
FA8A74N | 100kHz | ||||||||||
FA8A71N | 65kHz | Timer-latch | |||||||||
FA8A75N | 100kHz | ||||||||||
FA8A12N | 12 – 24V | 65kHz | Auto-Recovery | 2Stage | |||||||
FA8A80N | 10 – 24V | 65kHz | Auto-Recovery | 1Stage | 650V | ||||||
FA8A84N | 100kHz | ||||||||||
FA8A81N | 65kHz | Timer-latch | |||||||||
FA8A85N | 100kHz | ||||||||||
FA8A90N | 65kHz | Auto-Recovery | Built-in | ||||||||
FA8A94N | 100kHz | ||||||||||
FA8A91N | 65kHz | Timer-latch | |||||||||
FA8A87N | 65kHz | ||||||||||
FA8A95N | 100kHz |