PSB155-9IRG

Voltage - Output 4:	--
Approvals:	cCSAus, CE, cURus
Size / Dimension:	4.17" L x 2.72" W x 1.27" H (106.0mm x 69.0mm x 32.2mm)
Mounting Type:	Chassis Mount
Operating Temperature:	-40°C ~ 71°C
Efficiency:	92.5%
Applications:	ITE (Commercial), Railway
Power (Watts):	75W
Current - Output (Max):	5A
Series:	Melcher PSB
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	15V
Number of Outputs:	1
Voltage - Input (Max):	80V
Voltage - Input (Min):	19V
Type:	Enclosed, Conformal Coated
Part Status:	Active

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

DC DC Converters

DC-DC converters convert a source of direct current power from one voltage to another jointly isolated voltage independently of input conditions. It uses input voltage vector and output voltage vector potential with an intermediate controlling vector to manage the system and deliver the desired output. This wide range of applications from telecommunications to consumer and industrial electronics make DC-DC converters a critical component of modern electrical systems. PSB155-9IRG is such a device, setting the standard for excellence in industrial power conversion applications. In this article, we discuss its performance, features, and working principle.

Performance and Features

PSB155-9IRG is designed for heavy industrial applications and features 15V output and 9A (135W) continuous current. It has a wide input voltage range of 8-36VDC and up to 76VDC with redundancy. It has an extended temperature range from -40°C to +90°C. The high efficiency of 95% helps to keep the device cool and thus offering a long reliable operation. The device also offers twice and triple output and offers optional extended temp packages of -60℃ to +90℃ and -55℃ to +125℃. The PSB155-9IRG features a wide range of safety protections like input undervoltage (UV), output overvoltage (OV), over temperature (OT), and over current (OC).

Working Principle

PSB155-9IRG converts input DC voltage to necessary output voltages using a controller IC and two set of switches. When the input voltage exceeds its operating limits, the reset output turns off the primary switches and switches off the secondary switches. The extra voltage is then diverted to the ground.The PSB155-9IRG works on the two-stage approach. In the first stage, the synchronous rectifier boosts the output current while increasing the input voltage. The restriction of the output current is equally important, and it is done through the secondary control loop. In the second stage, controlled by the secondary control loop, the input voltage is converted again to the desired output voltage. This loop also makes sure of output voltage accuracy and limits the peak current as per the demands of the application.

Conclusion

The PSB155-9IRG is widely used as an industrial DC-DC converter. Its wide input voltage range, wide temperature range, and its efficient control loop make it ideal for a wide range of applications. It has an input undervoltage, output overvoltage, over temperature, and over current protections. The device is designed with two stages, the first stage enabled by the synchronous rectifier increases the output current while the second stage enabled by the secondary control loop helps to provide accurate required output voltage.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description