3N255-E4/51

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Diodes - Bridge Rectifiers are used in many types of electrical circuits, such as switching power supplies, DC/AC converters, and motor speed controls. The 3N255-E4/51 is a chip-level bridge rectifier (BLR) that integrates an array of diodes and zener diodes to provide a wide range of input voltage capabilities. Additionally, the chip-level BLR provides superior temperature performance and improved electrical isolation. This article will discuss the 3N255-E4/51 application field and working principle.

Application Field

The 3N255-E4/51 bridge rectifier is designed for use in a wide range of applications, including automotive, industrial and consumer electronics applications. In automotive applications, the chip-level BLR can be used to provide efficient switching power supplies with wide-input voltage ranges. In industrial applications, the chip-level BLR may be used to provide high-efficiency DC/AC converters. Additionally, the BLR can be used to provide superior speed control in motor control applications. All these applications require a bridge rectifier that is capable of operating efficiently over a wide range of temperatures and input voltages.

Working Principle

The 3N255-E4/51 bridge rectifier utilizes a unique array of diodes and zener diodes to provide low distortion, low loss and wide input voltage operation. The chip-level BLR uses a combination of diodes, including a series of two diodes connected in parallel and two zener diodes connected in series. This combination of diodes provides enhanced temperature performance, improved electrical isolation and wide-input voltage operation. In addition, the chip-level BLR is enclosed in a small 4-pin package, providing superior thermal performance when compared to other bridge rectifiers.

The 3N255-E4/51 utilizes a double-diffused PN junction, which is insulated from the substrate material by an oxide layer. This oxide layer creates a depletion region between the junction and the substrate and allows the device to function as a bridge rectifier. When a positive voltage is applied across the 4 pins, the junction will be forward biased and the current will flow from the positive pin to the negative pin, providing a rectified output.

When a negative voltage is applied typically due to reverse polarity, the junction will become reverse biased and current will not flow. The chip-level BLR also utilizes zener diodes that help suppress switching noise and reduce power losses. The zener diodes also provide superior over-voltage protection.

The 3N255-E4/51 bridge rectifier is a robust device that is capable of handling input voltages up to 40 volts. The chip-level BLR provides superior electrical isolation and temperature performance, making it ideal for a wide range of applications, including automotive, industrial and consumer electronics.

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