PT4583A

Current - Output (Max):	2.5A
Base Part Number:	PT4583
Size / Dimension:	3.00" L x 1.19" W x 0.50" H (76.2mm x 30.2mm x 12.7mm)
Package / Case:	19-SIP Module
Mounting Type:	Through Hole, Right Angle
Efficiency:	86%
Operating Temperature:	-40°C ~ 85°C
Features:	--
Applications:	ITE (Commercial)
Voltage - Isolation:	1.5kV
Power (Watts):	30W
Series:	Excalibur™ PT4580
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	12V
Voltage - Input (Max):	60V
Voltage - Input (Min):	18V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Obsolete
Packaging:	Tray

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DC DC Converters

DC-DC converters are used to convert the input voltage to a desired output voltage. The main purpose of using one of these converters is to provide power supply to electronic devices, which only accept specific voltages. The PT4583A is one such DC-DC converter that is capable of providing a voltage solution to the most common circuits.The PT4583A is an integrated real-time adaptive filter with PWM drive and amplification. The filter can effectively adapt to system load to achieve a required supply voltage and eliminate input ripple. The built-in current-mode PWM drive and PFM dual-channel Class A power amplification output can reduce the drive power and output ripple. It also provides enhanced load protection by reducing or completely eliminating the output current impact due to large input voltage spikes and EMI from the power grid.The PT4583A works in an open-loop and closed-loop operation mode. In open-loop operation, the sampled regenerative voltage is compared with a reference set level to detect how far the system is from desired output. The constant regeneration value is then adjusted accordingly with respect to a constant value set in the open loop. This continuous adjustment of the reference set level enables the system to reach a high level of accuracy in terms of output power.The closed-loop operation provides a more precise control of power output because it is able to measure the output current from the system and compare it with a defined maximum current. Any overshoot or undershoot of this current limit can be prevented by setting the output to a zero voltage or an upper voltage, respectively.The applications for the PT4583A range from DC to DC converters operating higher than 3V to 5V, to six-level voltage regulation for DC motors, to power factor correction for LED lighting applications. Most common power circuit systems utilizing the PT4583A are connected by a power distribution board and connected via the motor output port of the device.The PT4583A also offers a system protection against overload, overvoltage, undervoltage, over temperature, CVCC, and Short Circuit. Its integrated voltage detector monitors the four points of the input voltage and reports the status of them. Any fluctuations or overvoltage levels will result in an alarming signal to the user, ensuring safe operation.In conclusion, the PT4583A is a very versatile DC-DC converter that can be used in a wide range of circuits due to its ability to provide a precise output current and protection against many system faults. The filter provided by it can effectively reduce the output ripple, ensuring high efficiency and reliability.

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