ITQ4815SA

Voltage - Output 3:	--
Control Features:	Enable, Active Low
Size / Dimension:	0.86" L x 0.36" W x 0.44" H (21.8mm x 9.2mm x 11.1mm)
Package / Case:	8-SIP Module, 6 Leads
Mounting Type:	Through Hole
Efficiency:	87%
Operating Temperature:	-40°C ~ 100°C
Features:	Remote On/Off, SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	1.5kV
Power (Watts):	6W
Current - Output (Max):	400mA
Series:	ITQ
Voltage - Output 2:	--
Voltage - Output 1:	15V
Voltage - Input (Max):	75V
Voltage - Input (Min):	18V
Number of Outputs:	1
Type:	Isolated Module
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tube

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DC-DC Converters: ITQ4815SA application field and working principle

DC-DC converters are devices that convert electrical power from one DC (direct current source) to another DC output. The most common applications include power supplies for computers, invertors and voltage stabilizers. Among the various DC-DC converters available on the market, one of the best performing converters is the ITQ4815SA converter series.This DC-DC converter series is a first-class solution for power distribution, featuring a wide input voltage range, high efficiency, excellent line and load regulation, fast transient response and precise output voltage. It has two types of input voltages: one is 12-20V and the other is 36-72V. Depending on the application, there is also the choice of three output voltages: 12V, 48V and 72V. The power range is from 10W to 60W with a wide input voltage range, making it an ideal choice for several applications, such as distributed power supplies, communication base stations, industrial control systems, and consumer and automotive electronics. What makes the ITQ4815SA series stand out is its input synchronization feature. This allows for synchronizing the switching frequency with an external clock source at a frequency of up to 16.7MHz. This high-frequency operation provides for a small package size and high efficiency up to 96%. Other features include a Power Good signal, over-voltage protection (OVP), current limit protection (OCP) and short-circuit protection (SCP). The ITQ4815SA converter series also offers high power density with an average efficiency of > 80%. It has a maximum operating temperature of -40°C to +85°C, a wide range of active current sharing options, and an input/output isolation of 1500V, making it suitable for a wide variety of applications. To further get an understanding of the ITQ4815SA series, and how it works, it’s important to understand its principle of operation.The ITQ4815SA DC-DC converter series uses a voltage regulator circuit, which in essence, works as a controlled current source. The input signal is supplied to the voltage regulator circuit, where it is converted from AC to DC. Voltage regulation is then achieved by means of a feedback control loop that constantly adjusts the input signal to obtain the desired output voltage. In this way, the output voltage remains constant even when the input voltage varies.When the power supplied to the input voltage fluctuates, the regulator adjusts the input signal according to the feedback loop, helping to maintain the output voltage at the desired level. To provide increased protection against over-voltage, the ITQ4815SA converter series also contains an over-voltage protection (OVP) circuit.The ITQ4815SA converter series also makes use of two different power conversion techniques to increase efficiency and minimize power losses. The first is the dual-step PFC boost converter, which allows higher power levels at a faster transition. With this converter, when the input voltage rises above a defined threshold, the power output is increased, while at the same time, the output voltage remains within a given range. The second power conversion technique utilizes an active head converter that operates at a fixed frequency. This allows for a more reliable power supply with improved dynamic performance, while also allowing for a high power density. As a result, ITQ4815SA DC-DC converters are able to provide a stable and reliable source of power with low power losses.In conclusion, the ITQ4815SA DC-DC converter series is a first-class solution for power distribution, offering high efficiency, excellent line and load regulation, precise output voltage, and a wide input voltage range. It is suitable for a wide variety of applications, such as distributed power supplies, communication base stations, industrial control systems, and consumer and automotive electronics. Its input and output synchronization, along with its intelligent Power Good signal, over-voltage protection, current limit protection, and short-circuit protection, make it a reliable and powerful choice for any application.

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