AO4818B Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
FET Type:	2 N-Channel (Dual)
FET Feature:	Logic Level Gate
Drain to Source Voltage (Vdss):	30V
Current - Continuous Drain (Id) @ 25°C:	8A
Rds On (Max) @ Id, Vgs:	19 mOhm @ 8A, 10V
Vgs(th) (Max) @ Id:	2.4V @ 250µA
Gate Charge (Qg) (Max) @ Vgs:	18nC @ 10V
Input Capacitance (Ciss) (Max) @ Vds:	888pF @ 15V
Power - Max:	2W
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC

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AO4818B is a N-Channel MOSFETs - Arrays with low on resistance. It is a general purpose logic level, mobile & power management. This MOSFET arrays can reduce the number of USB power ports required to be wired in a given equipment and can also reduce the cost of the design.AO4818B can be used in the following areas:USB-Power Management: It can be used to switch and power the USB transceiver. In this application, the MOSFET arrays are used to provide voltage step down in order to protect sensitive parts associated with the USB transceiver.Switching & DC/DC DSA: An AO4818B can be used for switching and for DC/DC DSA (Direct Switching Architecture-Based DC/DC Converters). The MOSFET arrays can reduce the number of interconnecting paths (which translates to less parasitics) in the design and also offer better control.Logic Level: AO4818B can be used for logic level applications such as gate drivers, level shifters, as well as for switching power supplies.High Tolerance: The AO4818B can tolerate high voltages up to 20V and offers a high on-state voltage rating up to 12V. This makes it suitable for high voltage applications.High Speed: The maximum switching speed of the AO4818B is 10MHz, which makes it suitable for high speed applications.Low RDS(on): The RDS(on) of the device is very low, at only 10 milliohms. This ensures that minimal losses occur when the FET is switched.Operation: An AO4818B operates at a Vgs of -4.5V to -12V for an N-channel device. This is used to turn-on and turn-off the device. When the voltage applied at the Gate is > -4.5V, it is said to be \'ON\' and current is allowed to flow through it. Whereas, when the voltage applied is < -4.5V, it is said to be \'OFF\' and the current is blocked.Applications: The most common applications of the AO4818B are in USB Power Management, Switching & DC/DC DSA, Logic Level, High Speed and Low RDS(on). It can also be used in various industrial, automotive, mobile and consumer electronic applications such as PC Motherboard, Set Top Boxes, Automotive, Industrial UPS and Laptop charger.The AO4818B offers high performance, low RDS(on), high utilisation rate and high averaging current, making it an ideal choice for a variety of applications.

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