FDMD84100 Discrete Semiconductor Products

Series:	PowerTrench®
Packaging:	Tape & Reel (TR)
Part Status:	Active
FET Type:	2 N-Channel (Dual) Common Source
FET Feature:	Standard
Drain to Source Voltage (Vdss):	100V
Current - Continuous Drain (Id) @ 25°C:	7A
Rds On (Max) @ Id, Vgs:	20 mOhm @ 7A, 10V
Vgs(th) (Max) @ Id:	4V @ 250µA
Gate Charge (Qg) (Max) @ Vgs:	16nC @ 10V
Input Capacitance (Ciss) (Max) @ Vds:	980pF @ 50V
Power - Max:	2.1W
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	8-PowerWDFN
Supplier Device Package:	Power 3.3x5

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Introduction

The FDMD84100 is an advanced FET array integrated circuit that is used in many different applications. It is a logic-level controlled, low-voltage MOSFET array, which is designed to operate from VDD power supplies as low as 4.5 V. According to NXP, it is a low on-resistance (RDS(on)) power switch array with asymmetric conduction. The FDMD84100 can be used in a variety of situations where a switched-mode power supply (SMPS) is needed.

Application Field

The FDMD84100 is designed for a variety of applications where it can be used as a bridge between two power supplies for load switching, DC/DC conversion, and a battery low-side switch in many applications such as automotive, consumer, and industrial.In automotive applications, the FDMD84100 can be used in switching variable loads with fast charging and discharging. It can also be used as a low-side switch for circuit protection.In consumer applications, the FDMD84100 can be used as a DC/DC converter to switch between two different power supply voltages. This can be useful for regulating devices requiring different voltages and currents.In industrial applications, the FDMD84100 can be used to switch loads in devices such as ovens, washing machines, and other appliances. In these applications, the FDMD84100 is used in conjunction with a load sensing circuit and other power switching components.

Working Principle

The FDMD84100 works by controlling the switching of two distinct power supplies. This is done by providing a logic-level (input signal) to the control signal (gate) of the MOSFET array, which determines the configuration of the power switches. With a logic-level signal applied, the MOSFETs operate as two independent switches, allowing the power to flow from one supply to the other.The FDMD84100 is designed to have a low RDS(on) value, which helps to reduce power losses during power transfers. It works by increasing the switching speed of the MOSFET switches, thereby allowing the power to be transferred more efficiently.The FDMD84100 also has a thermal shutdown function. This function is designed to prevent damage to the device by automatically shutting down the MOSFET array if the temperature of the IC exceeds a certain threshold.

Conclusion

The FDMD84100 is a specialized FET array integrated circuit that is designed to be used in a variety of applications. It can be used as a bridge between two power supplies for load switching, as a DC/DC converter, and as a low-side switch in many situations. The device is designed to have a low RDS(on) value for more efficient power transfers and also has a thermal shutdown function for added protection.

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