FDBS09H04A-F085A

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Analog Devices’s FDBS09H04A-F085A is a power distribution switch, load driver, and LED driver integrated circuit. It is applicable to a wide range of applications, such as phones, tablets and other mobile devices, industrial applications and white goods. The IC can be used to switch power and drive loads and LEDs in various configurations.

Package type and topology

The FDBS09H04A-F085A comes in a WDFN package, and has two channels that can be used for power control, two for general application, and one for LED control. Each channel has separate control pins, making it possible to control each channel independently. The IC can work both in parallel and series configurations, allowing for flexibility in different application scenarios.

Features

The FDBS09H04A-F085A has a wide range of features that make it suitable for a variety of applications. These include a low on-resistance of 80 mΩ, low voltage drop of 0.44 V, and low quiescent current of 3 μA in OFF state. The load switch also has protection against over-voltage, over-current, and short circuits. Additionally, the LED control has adjustable LED current and PWM dimming, enabling precise control of LED brightness.

Working principle

The FDBS09H04A-F085A is a transistor-based device, with each channel consisting of a pair of transistors. The two transistors are configured as a switch, so when the control pin is high, the switch is turned on and the power is allowed to flow from the input to the output. When the control pin is low, the switch is turned off and the power is blocked. The LED control channel works similarly, with the control pin turning the LED on or off. When it is on, the LED current is regulated with a current source.

Application field

The FDBS09H04A-F085A is well suited for a variety of applications, such as power management and LED control in phones, tablets, and other mobile devices, as well as energy management in industrial systems and white goods. Additionally, the IC can be used in power conditioning and distribution systems, as well as automated lighting systems. It is also suitable for AC/DC and DC/DC converters. With its low power consumption and adjustable current, it is ideal for battery-powered applications.

Conclusion

Analog Devices’s FDBS09H04A-F085A is a power distribution switch, load driver, and LED driver integrated circuit, which is applicable to a wide range of applications, such as phones, tablets and other mobile devices, industrial applications and white goods. The IC has a WDFN package, and features a low on-resistance of 80 mΩ, low voltage drop of 0.44 V, and low quiescent current of 3 μA. In addition, it offers protection against over-voltage, over-current, and short circuits, as well as adjustable LED current and PWM dimming. The IC is well suited for a variety of applications, such as power management and LED control in phones, tablets, and other mobile devices, as well as energy management in industrial systems and white goods.

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