224CMQ040

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224CMQ040 - Diodes - Rectifiers - Arrays

The 224CMQ040 is a diode rectifier array designed for applications in power management, DC-DC conversion, over-voltage protection and other applications requiring a low forward voltage drop.

The 224CMQ040 is offered in a 4-pin plastic SMA package which has an extended safe operating area and a low thermal resistance. The 224CMQ040 is designed to provide protection against over-voltage transients while offering long-term reliability.

Application Field

The 224CMQ040 is well suited for many power management applications in automotive, consumer, and industrial markets. The wide range of package types it offers, including SMA, DIL and DML, provides flexibility in system design. The 224CMQ040 can also be used for protection in DC-DC switching supplies, as a series diode for battery charging, as a power switch for applications with low-voltage/high-current requirements, or as a high-speed switch for platforms with limited on-chip protection.

Working Principle

The 224CMQ040 works by connecting two diodes in one package, a P-channel MOSFET (PMOS) and an N-channel MOSFET (NMOS). The PMOS is used as the controlling terminal and the NMOS acts as the load terminal. When an external voltage is applied to the controlling terminal, it causes the PMOS to conduct and the NMOS to become non-conductive. This condition can be used to switch on and off AC, DC and pulsed current applications.

When an over-voltage transient condition is present, the PMOS and NMOS quickly switch states, allowing high-current pulses to flow between the drain and source of the PMOS without damaging the system. The 224CMQ040 also features an ESD protection clamp to protect both the supply and load sides of the array from electrostatic discharge.

The 224CMQ040 is available in a range of current ratings from 1A to 3A, with a reverse blocking voltage from 0.45V to 2V. This range of voltages allows the 224CMQ040 to meet the requirements of a wide range of applications without requiring any additional external components.

Conclusion

The 224CMQ040 diode rectifier array is designed to protect against over-voltage transients while offering long-term reliability. The 224CMQ040 is offered in a 4-pin plastic SMA package and can be used for protection in DC-DC switching supplies, as a series diode for battery charging, as a power switch for applications with low-voltage/high-current requirements, or as a high-speed switch for platforms with limited on-chip protection.

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