PTMA401120N1AZ

Series:	PTMA40xx
Packaging:	Tray
Part Status:	Obsolete
Type:	Isolated Module
Number of Outputs:	1
Voltage - Input (Min):	36V
Voltage - Input (Max):	75V
Voltage - Output 1:	12V
Voltage - Output 2:	--
Voltage - Output 3:	--
Current - Output (Max):	1A
Power (Watts):	10W
Voltage - Isolation:	1.5kV
Applications:	ITE (Commercial)
Features:	OCP, OVP, UVLO
Operating Temperature:	-40°C ~ 85°C
Efficiency:	82%
Mounting Type:	Surface Mount
Package / Case:	5-SMD Module
Size / Dimension:	1.10" L x 0.96" W x 0.36" H (27.9mm x 24.4mm x 9.1mm)
Base Part Number:	PTMA401120

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DC DC Converters

The PTMA401120N1AZ is a DC DC converter that is used to convert a low-voltage input into a higher-voltage output. This device is ideal for applications that require a voltage range from 7.5V to 28.8V with a maximum continuous output current of 9A. The PTMA401120N1AZ is specifically designed for use in application fields such as automotive, industrial, medical, and railway.

Working Principle

The working principle of the PTMA401120N1AZ is based on a synchronous step-up converter. The power is generated by the use of two switches, a low side switch (N1) and a high side switch (N2). When the low-side switch (N1) is open, the power supply (Vin) is connected through the inductor to the input of the converter. When the inductor is charged, the low-side switch (N1) can be closed. At this time, the inductor begins to discharge its energy by releasing it into the load through the high-side switch (N2). The high-side switch (N2) should remain open until the voltage on the inductor is transferred into the load and the voltage from the power supply is effectively discharged. The output voltage is regulated by a current-mode control loop. As the current passes through the inductor, the control loop senses the output voltage and adjusts the conduction time of the switches while keeping the voltage across the inductor constant. This allows for a constant output voltage, regardless of any variations in the load or input voltage.

Conclusion

The PTMA401120N1AZ is a DC DC converter that is used to convert a low-voltage input into a higher-voltage output. This device is ideal for applications that require a voltage range from 7.5V to 28.8V with a maximum continuous output current of 9A and is specifically designed for use in the automotive, industrial, medical, and railway application fields. The working principle of the device is based on a synchronous step-up converter which is regulated by a current-mode control loop for a constant and regulated output voltage.

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