ST40100C

Introduction

The ST40100C is a diode array with six diodes on a single substrate that are designed to form six anode-cathode junctions. This diode array is designed to protect power supplies, charge pumps, and switched-mode power converters (SMPS) from reverse EMF caused by powering down and voltage transients. It also functions as a current limiter in power supplies, displays, etc. This diode array is offered in a low-cost, dual-in-line plastic package (DIP).

Application Field

The ST40100C is designed to provide protection to all kinds of power supplies, charge pumps, and SMPS from reverse EMF and current transients. This diode array is also useful for power supplies, displays, and other applications that require current limiting. The robustness of ST40100C allows it to be used in power supplies with a wide range of operating voltages and currents.

Working Principle

The ST40100C diode array consists of six anode-cathode junctions. Each of the anode-cathode junctions works as a self-protecting diode. The anode of each diode is connected to the cathode of the next diode. The anode of the first diode is connected to the output of the power supply, while the cathode of the last diode is connected to the ground of the power supply.

The ST40100C diode array works in two primary modes: reverse electro-motive force (EMF) protection (clamping) and current limiting. In clamping mode, the diode array protects the power supply and other components from the effects of reverse EMF caused by powering down or voltage transients. In current limiting mode, the ST40100C prevents the current passing through the power supply and other components from exceeding a specified level.

Conclusion

The ST40100C is a diode array with six diodes on a single substrate. It is designed to provide protection to power supplies, charge pumps, and SMPS from reverse EMF and current transients. The robustness of the ST40100C allows it to be used in power supplies with a wide range of operating voltages and currents. The ST40100C works by providing reverse EMF protection (clamping) and current limiting.