LDR10866

Diodes - Rectifiers - Arrays: LDR10866 Application Field and Working Principles

The LDR10866 is an integrated rectifier array available in a very small four pin surface mount package. Offered in SOIC, SSOP, and MSOP, the LDR10866 is designed to offer reliable protection from line transients and overvoltages.

The LDR10866 is ideal for AC line frequency ESD and overvoltage protection for both AC and DC applications. With a peak reverse working voltage of 8 volts, the LDR10866 offers an ideal voltage clamping solution for automotive and consumer electronics applications. The LDR10866 is a monolithic integrated array, which consists of two integrated diodes in series, two resistors of equal value connected in series to the anode of each diode, and two DC bias resistors connected in parallel to the cathode of each diode.

Features

• 8V peak reverse working voltage
• SBVS (Supply Bias Voltage Sensitivity) of 1000mV
• Low capacitance: < 4pF
• Anode to cathode breakdown voltage of 8V minimum
• Clamp voltage of 8V
• On-state resistance of 2.2kΩ
• Low insertion loss: < 1.0V

Working Principle

The LDR10866 is designed to protect sensitive electronic circuits from high voltages. It does this by clamping the voltage to the specified level and preventing any further increase in voltage. This is accomplished by the two diodes in series, which allow current to flow from the anode to the cathode. When the applied voltage exceeds the breakdown voltage of the diodes, current will flow through the diode, setting a clamp voltage across the array. The resistors connected to the diodes serve the purpose of providing voltage division, thus limiting the current flow through the array. The DC resistors provide bias for the diodes, ensuring that the current is properly rectified.

The LDR10866 can be used in applications such as automotive, consumer electronics, and industrial. In automotive applications, the LDR10866 can be used to protect sensitive circuitry from line transients and voltage spikes, while in consumer electronics and industrial applications, it can be used to protect against ESD and overvoltage events. The LDR10866 is also ideal for AC to DC power conversion applications, as it provides efficient protection from voltage transients.

Conclusion

The LDR10866 is a very useful component for providing protection from voltage transients and ESD events. With its small four pin surface mount package, high current ratings, and low insertion loss, the LDR10866 is perfect for automotive, consumer electronics, and industrial applications. Furthermore, the integrated resistors and diodes offer an ideal voltage clamping solution, ensuring efficient and reliable protection.