CEDM7004 BK

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CEDM7004 BK is a depletion-mode MOSFET developed by Chunghwa Electronics. It was mainly designed for low-power applications such as amplifiers, switches and motions controllers. The device is a single-die, 3-terminal, depletion-mode N-channel MOSFET with an relatively low on-resistance, used to deliver reliable and efficient performance in a wide range of applications. In this article, a discussion on the application field and working principle of the CEDM7004 BK will be presented to provide an overview of the characteristics and features of this popular device.

The CEDM7004 BK is typically used in audio amplifiers, switch circuits, power management and light dimming applications. It provides low on-resistance and fast switching speed, which make it an ideal device for these applications. The device is designed for low voltage operation, with ratings up to 16V. In addition, it can offer a relatively high current rating of up to 1A. This makes it suitable for high power applications, such as power supplies and motors.

In terms of its working principle, the CEDM7004 BK device operates in both enhancement and depletion modes. In depletion mode, the MOSFET will be turned off when the gate voltage is equal to the source voltage. When a positive voltage is applied to the gate, then the MOSFET will turn on. This allows it to be used as a switch in audio amplifiers, switch circuits and light dimming applications. In enhancement mode, the MOSFET will be turned on when the gate voltage is equal to the source voltage. When a negative voltage is applied to the gate, then the MOSFET will turn off. This allows it to be used as a switch in power supplies and motor control systems.

The CEDM7004 BK also features a relatively low on-resistance and fast switching speed. Its on-resistance is typically as low as 0.01Ω, and its switching speed can reach up to 10ns, making it ideal for high-speed applications. It also features a low leakage current, making it suitable for battery-powered applications. Additionally, its gate-source capacitance is typically only 20pF, ensuring a low level of power dissipation.

In summary, the CEDM7004 BK is an ideal device for audio amplifiers, power supplies and motors, switch circuits and light dimming applications. It offers reliable and efficient performance and has relatively low on-resistance and fast switching speeds. With its wide range of useful features, the CEDM7004 BK is an excellent choice for many low-power and low-voltage applications.

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