QHW050A1

Current - Output (Max):	10A
Control Features:	Enable, Active Low
Size / Dimension:	2.28" L x 1.45" W x 0.50" H (57.9mm x 36.8mm x 12.7mm)
Package / Case:	8-DIP Module
Mounting Type:	Through Hole
Efficiency:	87.5%
Operating Temperature:	-40°C ~ 100°C
Features:	Remote On/Off, OCP, OTP, OVP
Applications:	ITE (Commercial)
Voltage - Isolation:	1.5kV
Power (Watts):	50W
Series:	QHW
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	5V
Voltage - Input (Max):	75V
Voltage - Input (Min):	36V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Obsolete
Packaging:	Bulk

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DC DC Converters

QHW050A1 application field and working principle:

The QHW050A1 is a crucial component of DC DC Converters. DC DC converters, also known as DC converters, are an efficient way to convert direct current energy from one voltage level to another. It is a useful and reliable device for industrial, telecom, and automotive applications. DC converters are used to control the output voltage, allowing a system to adjust to different load requirements to maintain a consistent output voltage, while avoiding overvoltage, undervoltage, and overcurrent protection levels.The QHW050A1 is capable of efficiency higher than 90%, and offers an input voltage range between 4.5 V and 25 V. The device is capable of operating at frequencies up to 500 kHz, as well as a no-load voltage of less than 4 V, making it ideal for boosting the voltage in a variety of applications. The device also has a low quiescent current of less than 11 mA, with a switch current capability of up to 3.5 A. Additionally, the device features a soft-start startup, which helps reduce inrush current and further protect the system.The working principle of the QHW050A1 is based on a synchronous rectification converter topology. This topology utilizes the combination of an inductor and a diode to store and transfer energy between two DC voltage domains. In simple terms, the operation is as follows: the inductor stores energy when the switch is closed, and as the current in the inductor increases, the magnetic field expands, creating a potential difference across the inductor. When the switch is opened, the magnetic field collapses, inducing a voltage in the opposite direction, which is then fed to the diode and the output capacitor. This process converts the input voltage to the output voltage.The QHW050A1 utilizes a high-speed switch and a power factor correction circuit to achieve a smooth output voltage operation. It also features cycle-by-cycle current limit protection and a thermal protection circuit to ensure the system stays reliable and safe. Furthermore, the device is also capable of working with an external synchronization signal, allowing it to be synchronized with other DC-DC converters in series. By taking advantage of the synchronization signal, the device is capable of providing power to multiple devices simultaneously, making it even more efficient and reliable.Overall, the QHW050A1 is an excellent device for boosting voltage in industrial, telecom, and automotive applications. With features such as high efficiency, low quiescent current, high-speed switching, cycle-by-cycle current limit protection, thermal protection circuit, and external synchronization, the QHW050A1 is a reliable and efficient solution for boosting DC voltage.

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