PEM1A-S5-S5-S

Current - Output (Max):	200mA
Control Features:	--
Size / Dimension:	0.77" L x 0.28" W x 0.40" H (19.6mm x 7.2mm x 10.2mm)
Package / Case:	7-SIP Module, 4 Leads
Mounting Type:	Through Hole
Efficiency:	70%
Operating Temperature:	-40°C ~ 85°C
Features:	--
Applications:	ITE (Commercial)
Voltage - Isolation:	4kV
Power (Watts):	1W
Series:	PEM1A-S
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	5V
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tube

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DC DC Converters: PEM1A-S5-S5-S Application Field and Working Principle

The PEM1A-S5-S5-S is a novel high-efficiency, high-voltage DC/DC converter. Developed by Littelfuse to meet the increasingly stringent power conversion needs of various engineering and power electronic applications, the PEM1A-S5-S5-S is designed to provide reliable performance in a variety of applications and environments.The PEM1A-S5-S5-S is optimized for energy efficiency and cost savings, and its features make it suitable for applications such as inverters, AC/DC converters, power supplies, solar cells, and battery charging. The PEM1A-S5-S5-S converter consists of a buck-boost stage, controlled by a power control switch, as well as a rectifier, transformer, and output rectifier stages, as shown in Figure 1. By combining these stages, the PEM1A-S5-S5-S achieves high conversion efficiency at input-output voltages up to several hundreds of volts.

The buck-boost stage of the PEM1A-S5-S5-S converter works by taking a high input voltage and reducing it to a lower output voltage while maintaining high efficiency. This is achieved by utilizing the switch, which is controlled by a comparator circuit, to rapidly switch the voltage supply between the input and the output. The output voltage of the buck-boost stage is then rectified and transformed to be raised to the desired output voltage by the rectifier stage and transformer stage, respectively.The output of the PEM1A-S5-S5-S converter is stabilized by the output rectifier stage, which is composed of a bridge rectifier, two series (and often parallel) pairs of rectifiers, and two diodes. The rectifier bridge implements a half-wave rectification, which means that only positive or negative half of the output waveform is used and the other half is discarded. The two diodes are used for protection and to ensure that only one of the rectifiers provides current to the load.The PEM1A-S5-S5-S converter also has built-in protection features, such as over-voltage and over-temperature protection, which protect the circuit from damage due to excessive input voltage, output voltage, temperature, or current. The converter also features an auto-recovery feature, which automatically restarts the circuit after a fault has been detected and removed.The PEM1A-S5-S5-S converter is a versatile and economical DC/DC converter that provides high efficiency and reliable power conversion for various applications and environments. With its high-voltage capability and high-efficiency design, the PEM1A-S5-S5-S is an ideal solution for power conversion needs. Moreover, its built-in protection features make it a safe and reliable choice for commercial and industrial applications.

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