News
2025.11.14
The 29V high-voltage reusable power distribution switch FA7655 goes on the market
Hsinchu, November 14, 2025 -- Fortune Advanced Technology today launched its 29V high-voltage reusable power distribution switch FA7655
The 29V high-voltage power distribution switch product series of Fortune Advanced Technology includes the FA7655, which supports overcurrent protection, short-circuit protection, and over-temperature protection functions required for circuit protection in power lines. For more information, please refer to “Home > Products > Power Distribution Switches > 29V Power Distribution Switches”.
The most significant feature of this IC is that it can be used repeatedly.
Conventional thermal fuses (glass tube fuses and chip-type fuses) protect power line circuits by fusing the built-in alloy parts due to Joule heat when the current exceeds the rated value. However, these thermal fuses have some shortcomings, such as slow fusing time, indefinite breaking current, and the need for replacement work once they are broken. Unlike conventional fuses, power switches have a fast current blocking function, because the built-in MOSFET is quickly turned off when excessive current flows. Based on the above reasons, they will not be destroyed by a single overcurrent event and can be reset and reused. Therefore, these products can reduce maintenance costs and shorten repair time.
The second feature is that it can also merge various protection functions, such as over-temperature protection and short-circuit protection. When severe overheating or an unexpected short-circuit occurs, it can immediately cut off the power.
The third feature is that power switches achieve much simpler circuit designs with fewer components and a smaller PCB board area than discrete components.
The fourth feature is that this power switch can be used in an ultra-wide power supply input voltage range of 3.0V to 26V, and the absolute maximum ratings of the input/output voltage are up to 29V.
The fifth feature is that the overcurrent threshold can be set through an external resistor, which is more accurate than a thermal fuse.
The sixth feature is that it provides an open-drain power good indicator output to notify the next-stage power supply that its output voltage has reached the normal level.
This product lineup provides two types of products: one is the auto-retry type, that is, the power switch recovers the circuit by itself; the other is the latch type, that is, the recovery is performed through external signals, so that customers can choose the appropriate power switch IC product according to their requirements.
Because the ribbon cable connecting the motherboard and screen of a laptop screen is easily worn down by repeated bending during long-term opening and closing, it can lead to a short circuit risk. Traditional laptop power protection designs often prioritize cost, typically employing P-channel MOSFETs as power switches in conjunction with conventional fuses for short-circuit protection. In recent years, integrated power switching chips have gradually replaced this combination. This design not only reduces testing and repair losses and defect rates during production but also effectively minimizes RMA costs after product shipment, resulting in a more cost-effective overall solution.
Furthermore, the FA7655 can also be used in LVDS TCON power supply applications for industrial computers (supporting 3.3V/5V/12V). Traditional designs often use discrete components, but their protection mechanisms are relatively inadequate. The FA7655 provides customers who require short-circuit or overcurrent protection with a more reliable and integrated power supply solution.
Package and availability
The FA7655 is now available through authorized distributors in the DFN2x2-6L package. Full and custom quantity reels are available.
About Fortune Advanced Technology
Fortune Advanced Technology Co., Ltd. was established in 2013 focusing on high-voltage mixed-signal power management solutions. We dedicate to meeting the emerging requirements for lower power consumption at the standby stage.
We have successfully developed the first application-oriented PMIC for TV/Monitor TV/STB applications.
It is a digitally controlled multichannel PMIC capable of achieving total 0.15Watt standby power consumption under 230VAC for the whole TV system, which is at the forefront of the IC design industry. Based on this technology, we have successively developed diverse and competitive products widely used in LCD TV, motherboards/AIO, networked communication devices/STB, notebooks computers, and other fields.
We hope to grow into the best power partner to provide high-efficiency and cost-effective power solutions to our customers. Aware of the adverse effects of global warming, we will continue to strive for energy saving.
Trademarks
All registered trademarks and other trademarks belong to their respective owners.
SOURCE Fortune Advanced Technology
The 29V high-voltage power distribution switch product series of Fortune Advanced Technology includes the FA7655, which supports overcurrent protection, short-circuit protection, and over-temperature protection functions required for circuit protection in power lines. For more information, please refer to “Home > Products > Power Distribution Switches > 29V Power Distribution Switches”.
The most significant feature of this IC is that it can be used repeatedly.
Conventional thermal fuses (glass tube fuses and chip-type fuses) protect power line circuits by fusing the built-in alloy parts due to Joule heat when the current exceeds the rated value. However, these thermal fuses have some shortcomings, such as slow fusing time, indefinite breaking current, and the need for replacement work once they are broken. Unlike conventional fuses, power switches have a fast current blocking function, because the built-in MOSFET is quickly turned off when excessive current flows. Based on the above reasons, they will not be destroyed by a single overcurrent event and can be reset and reused. Therefore, these products can reduce maintenance costs and shorten repair time.
The second feature is that it can also merge various protection functions, such as over-temperature protection and short-circuit protection. When severe overheating or an unexpected short-circuit occurs, it can immediately cut off the power.
The third feature is that power switches achieve much simpler circuit designs with fewer components and a smaller PCB board area than discrete components.
The fourth feature is that this power switch can be used in an ultra-wide power supply input voltage range of 3.0V to 26V, and the absolute maximum ratings of the input/output voltage are up to 29V.
The fifth feature is that the overcurrent threshold can be set through an external resistor, which is more accurate than a thermal fuse.
The sixth feature is that it provides an open-drain power good indicator output to notify the next-stage power supply that its output voltage has reached the normal level.
This product lineup provides two types of products: one is the auto-retry type, that is, the power switch recovers the circuit by itself; the other is the latch type, that is, the recovery is performed through external signals, so that customers can choose the appropriate power switch IC product according to their requirements.
Because the ribbon cable connecting the motherboard and screen of a laptop screen is easily worn down by repeated bending during long-term opening and closing, it can lead to a short circuit risk. Traditional laptop power protection designs often prioritize cost, typically employing P-channel MOSFETs as power switches in conjunction with conventional fuses for short-circuit protection. In recent years, integrated power switching chips have gradually replaced this combination. This design not only reduces testing and repair losses and defect rates during production but also effectively minimizes RMA costs after product shipment, resulting in a more cost-effective overall solution.
Furthermore, the FA7655 can also be used in LVDS TCON power supply applications for industrial computers (supporting 3.3V/5V/12V). Traditional designs often use discrete components, but their protection mechanisms are relatively inadequate. The FA7655 provides customers who require short-circuit or overcurrent protection with a more reliable and integrated power supply solution.
Package and availability
The FA7655 is now available through authorized distributors in the DFN2x2-6L package. Full and custom quantity reels are available.
About Fortune Advanced Technology
Fortune Advanced Technology Co., Ltd. was established in 2013 focusing on high-voltage mixed-signal power management solutions. We dedicate to meeting the emerging requirements for lower power consumption at the standby stage.
We have successfully developed the first application-oriented PMIC for TV/Monitor TV/STB applications.
It is a digitally controlled multichannel PMIC capable of achieving total 0.15Watt standby power consumption under 230VAC for the whole TV system, which is at the forefront of the IC design industry. Based on this technology, we have successively developed diverse and competitive products widely used in LCD TV, motherboards/AIO, networked communication devices/STB, notebooks computers, and other fields.
We hope to grow into the best power partner to provide high-efficiency and cost-effective power solutions to our customers. Aware of the adverse effects of global warming, we will continue to strive for energy saving.
Trademarks
All registered trademarks and other trademarks belong to their respective owners.
SOURCE Fortune Advanced Technology