JCK1548D15

Current - Output (Max):	500mA, 500mA
Size / Dimension:	2.00" L x 1.00" W x 0.40" H (50.8mm x 25.4mm x 10.2mm)
Package / Case:	5-DIP Module
Mounting Type:	Through Hole
Efficiency:	88%
Operating Temperature:	-40°C ~ 100°C
Features:	OCP, SCP, UVLO
Applications:	ITE (Commercial)
Voltage - Isolation:	1.5kV
Power (Watts):	15W
Series:	JCK
Voltage - Output 3:	--
Voltage - Output 2:	-15V
Voltage - Output 1:	15V
Voltage - Input (Max):	75V
Voltage - Input (Min):	36V
Number of Outputs:	2
Type:	Isolated Module
Part Status:	Active
Packaging:	Tube

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Introduction to DC-DC Converters

DC-DC converters are widely used in many industrial applications. They have the capability to convert the direct current energy from one voltage level to another voltage level. There are two main types of DC-DC converters: Buck and Boost converters. Buck converters are devices that convert higher voltage into lower voltage. Unlike the boost converter, which increases the voltage level, the buck converter decreases it. This is done by converting the excess energy as heat within the converter. Buck converters are best suited for applications such as mobile devices, LED lighting, communication devices, and other power-saving applications. Boost converters, on the other hand, convert lower voltage into higher voltage. They can be used to boost an input voltages from a low level to any desired output voltage. Boost converters utilize inductors to store energy before it’s released as current. This helps to ensure a consistent output voltage while delivering higher current. Boost converters are best suited for applications such as automotive applications, RF amplifiers, solar energy systems, and nuclear power plants.

JCK1548D15 Application Field and Working Principle

JCK1548D15 is a Buck DC-DC converter, which is used in many industrial applications, such as automotive control modules, computer peripherals, motor control, and LED lighting. The JCK1548D15 is a highly integrated Buck DC/DC converter with synchronous rectification, low on-resistance and an integrated high-speed internal current-sense amplifier allowing for high efficiency operation.In terms of its working principle, the JCK1548D15 utilizes a series inductor to establish an inductive voltage gain and contain the current pulses. The control circuitry utilizes this inductor voltage gain to regulate the current across the inductor by manipulating the duty cycle of the switch. The secondary side consists of two diodes connected in antiparallel and a low-value output capacitor. The output voltage is determined by the input voltage, the switching frequency, and the duty cycle of the switch. The current waveforms across the inductor, switch, and diodes can be easily determined by monitoring the magnetizing current and the stored energy in the series inductor.

Conclusion

DC-DC Converters are widely used in many industrial applications due to their ability to efficiently convert direct current from one voltage level to another. The JCK1548D15 is a Buck DC-DC converter, which uses an inductor to store energy before releasing it as current. Its control circuitry manipulates the duty cycle of the switch to regulate the current across the inductor and maintain the desired output voltage.

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