FPF2182

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Introduction to FPF2182

The FPF2182 is an active power-distribution switch and load driver manufactured by Fairchild Semiconductor. It is designed to deliver a wide output current range from 0.2A up to 3.0A, allowing it to function both as a switch and a load driver for devices 2.7V to 7.0V. The device is well-suited for a variety of applications such as portable products, computer motherboards, mobile phones, digital cameras, digital music players and other consumer electronics.

Features and Benefits

The FPF2182 offers an ideal combination of high performance and low power consumption, making it perfect for a wide range of applications requiring precision current control. The device also offers a wide temperature operating range from -40°C to +85°C.

The device is also suitable for use in battery-powered systems due to its low input voltage range of 2.7V to 7.0V. Furthermore, it has an enable pin for either manual or remote enable/disable control.

The device offers a fast response time of 250ns which provides a fast enable/disable switch with minimal loss of switch-off current. The device also has a 0.2Ohm internal on-resistance, which helps minimize losses through the device by providing a low voltage drop across the device.

Application Field

The FPF2182 is a versatile device, and can be used in a number of applications. It can be used in consumer electronics such as mobile phones, digital cameras, and digital music players, as well as in computer motherboards and other portable devices.

The device can be used to control the supply and discharge of loads, such as LiCd batteries, and can provide a very precise current output to precisely control the load current. It can also be used in switching very low load currents, and can be used to switch multiple discrete devices with a single supply and single control line.

Working Principle

The FPF2182 operates as an active power-distribution switch and load driver by controlling the transfer of power to a specific device or load. The device has two terminals which it can control to turn on or off the power transfer. By controlling the two terminals, the device can control the load and either disconnect or reconnect the power to the load.

The FPF2182 is powered by an external supply voltage of 2.7V to 7.0V and uses an internal transistor to control the transfer of power. When the enable signal is active, the device will power the load. The output current is determined by the size of the transistor, and the current is regulated by an integrated current limiter.

The device can also be used to provide over-current protection, by sensing the current load via the sense pins and shutting off power if it exceeds a preset value. The device\'s fast response time also helps reduce inrush currents.

Conclusion

The FPF2182 is an excellent solution for a wide range of applications requiring precision current control. It is capable of operating over a wide temperature range and can be used to control loads such as LiCd batteries. It has a fast response time of 250ns and a low 0.2Ohm on-resistance, helping to minimize losses. The device can be used to switch multiple discrete devices with a single supply, and can provide over-current protection. Overall, the device offers an ideal combination of high performance and low power consumption.

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