MMBD5004BRM-7 Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Diode Configuration:	2 Pair Series Connection
Diode Type:	Standard
Voltage - DC Reverse (Vr) (Max):	350V
Current - Average Rectified (Io) (per Diode):	225mA (DC)
Voltage - Forward (Vf) (Max) @ If:	1.25V @ 200mA
Speed:	Fast Recovery = 200mA (Io)
Reverse Recovery Time (trr):	50ns
Current - Reverse Leakage @ Vr:	5µA @ 360V
Operating Temperature - Junction:	-65°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	SOT-23-6
Supplier Device Package:	SOT-26
Base Part Number:	MMBD5004B

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Introduction

The MMBD5004BRM-7 is a four-channel Switching Array with separate active-low input and common active-low output control. It is a common diode array used in various application fields and is suitable for general-purpose switching and routing applications as well as low-voltage power distribution. The MMBD5004BRM-7 is fabricated with a high-voltage integrated process utilizing metal-oxide-semiconductor (MOS) transistors and metal-oxide varistors process. This article will discuss the application field and working principle of MMBD5004BRM-7.

Application field

The MMBD5004BRM-7 is a general purpose switching array designed for a variety of circuit designs. It can be used in low voltage power distribution, switching and routing applications. It is particularly well suited for use in circuits controlling DC motors, audio amplifiers, power supplies, computer circuits and automotive systems. In addition, it can be used in a wide variety of consumer electronics applications such as consumer line output applications, consumer audio systems, and consumer appliances.

Working principle

The MMBD5004BRM-7 consists of four N-channel MOSFETs connected in series. The four channels accept control inputs of TTL or CMOS logic levels. Each channel has a separate input and common output controlled by an active-low "enable" input terminal. When the enable input is low, the channel is enabled and allows current to flow. When the enable input is high, the channel is disabled and no current can flow.The MMBD5004BRM-7 also features a built-in diode array to protect load circuits from transient voltages, and a varistor to reduce ESD (electro-static discharge) risks. The built-in diode array consists of four diodes connected in series, with the anode of each diode connected to the cathode of the next. When the enable input is low, the diode array is in reverse bias and blocks any voltage applied to the load. When the enable input is high, the diodes become forward biased and act as a clamp on excessive voltage, allowing only safe voltages to be applied to the load. The varistor inserted between the input and the output of the array is used to minimize the amount of ESD (electro-static discharge) that may be applied to the device and affect its operation.

Conclusion

In conclusion, the MMBD5004BRM-7 is a useful and versatile four-channel switching array suitable for general-purpose switching and routing applications as well as low-voltage power distribution. It features an active-low enable input and diode array to protect load circuits from transient voltages, and a varistor to reduce ESD (electro-static discharge) risks. This device is useful for a variety of consumer electronics applications and automotive systems.

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