CDLL5544

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	28V
Tolerance:	±20%
Power - Max:	500mW
Impedance (Max) (Zzt):	100 Ohms
Current - Reverse Leakage @ Vr:	10nA @ 23V
Voltage - Forward (Vf) (Max) @ If:	1.1V @ 200mA
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Surface Mount
Package / Case:	DO-213AB, MELF
Supplier Device Package:	DO-213AB

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Introduction

CDLL5544 is a high-power metal-oxide-semiconductor field-effect transistor (MOSFET) used for switching applications and operating over an extended temperature range from −55°C to +175°C. It offers very low on-state resistance and high RDS(on). It is a popular choice for powering loads in the automotive, industrial, and telecom industries, due to its efficient operation and reliability.

Application Field

CDLL5544 provides a wide range of benefits, including low control power, fast switching speeds, and low on-state resistance. It is suitable for a wide range of applications, including motor control, power supply, DC-DC converters, electric vehicles, industrial and telecommunications systems, and more. Motor Control: CDLL5544 is often used in electric motor drive applications, especially those involving inverter and resonant switches. These are powered from typically high-voltage DC, so the MOSFET must be able to handle large voltages and current. Additionally, it has low gate capacitance, which makes it suitable for high-frequency operation. Power Supply: CDLL5544 is typically used in AC/DC and rectifier power supplies, such as AC-DC power supplies, Buck, Boost, and Flyback converters. It offers fast switching speeds and low on-state resistance, making it suitable for voltage regulation and power adjustment. DC-DC Converters: CDLL5544 is often used in high-frequency DC-DC converters operating at frequencies up to 1 MHz. It is used to step down high voltage AC/DC power sources to provide a regulated DC output voltage. This can be used to power a wide range of applications, including microprocessors, batteries, and other loads. Electric Vehicles: CDLL5544 is also used in electric vehicles (EVs) for power switching applications, such as in EV battery packs, motor controllers, and more. It offers fast switching speed, low on-state resistance, and a wide temperature range for reliable performance. Industrial and Telecommunications: CDLL5544 is also used in industrial and telecommunications equipment for power conversion, motor control, and signal regulation. It can be used to regulate high voltages and current, as well as providing wide temperature range operation.

Working Principle

CDLL5544 is a high-power MOSFET based on a lateral structure. Its internal design consists of numerous layers of silicon-oxygen-silicon materials. When an electric signal is applied at the gate of the device, electrons are drawn out of the device and form an inversion layer which creates a conducting channel between the source and drain terminals.The operating voltage of the device is determined by the threshold voltage (Vth) and the applied drain-source (VDS) voltage. As the voltage rises, the inversion layer of the device becomes thicker and more electrons flow through the device. When the applied Vds voltage reaches the Vth voltage, the device reaches a conducting state.The on-state resistance of the device is determined by the ratio between the device width (W) and the length (L) of the device. The lower the ratio, the lower on-state resistance of the device. Because of this, CDLL5544 has a very low on-state resistance for its size and temperature range.

Conclusion

CDLL5544 is a popular high-power MOSFET device used for switching applications in a wide range of industries including automotive, industrial, and telecom. It offers very low on-state resistance, fast switching speeds, and extended temperature range operation. Its lateral structure allows for high voltage operation, low gate capacitance, and low on-state resistance. Its various advantages make it suitable for a wide range of applications, such as motor control, power supply, DC-DC converters, electric vehicles, industrial and telecommunications systems, and more.

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