| Allicdata Part #: | QMS20DE-ND |
| Manufacturer Part#: |
QMS20DE |
| Price: | $ 0.00 |
| Product Category: | Power Supplies - Board Mount |
| Manufacturer: | Bel Power Solutions |
| Short Description: | DC DC CONVERTER 3.3V 66W |
| More Detail: | Isolated Module DC DC Converter 1 Output 3.3V 2... |
| DataSheet: |  QMS20DE Datasheet/PDF |
| Quantity: | 1000 |
| 1 +: | 0.00000 |
Specifications
| Current - Output (Max): | 20A |
| Control Features: | Enable, Active High |
| 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: | 91% |
| Operating Temperature: | -40°C ~ 115°C |
| Features: | Remote On/Off, OCP, OTP, OVP, UVLO |
| Applications: | ITE (Commercial) |
| Voltage - Isolation: | 1.5kV |
| Power (Watts): | 66W |
| Series: | QMS |
| Voltage - Output 3: | -- |
| Voltage - Output 2: | -- |
| Voltage - Output 1: | 3.3V |
| Voltage - Input (Max): | 72V |
| Voltage - Input (Min): | 18V |
| Number of Outputs: | 1 |
| Type: | Isolated Module |
| Part Status: | Obsolete |
| Packaging: | Bulk |
Description
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DC-DC converters are electronic circuits or electromechanical devices that make use of DC electricity to supply a power source to an appliance or device. QMS20DE is a DC-DC converter manufactured by Semiconductor Technology Corporation. It is widely used in various applications due to its excellent performance, reliability, and high efficiency. It is designed to convert DC power from one voltage level to another, while maintaining the same current level.
The QMS20DE is a low cost, low noise DC-DC converter. It has a wide input voltage range from 12V to 30V, and is able to handle input currents up to 20A. The output voltage range of the device is adjustable from 0.59V to 19V, making it suitable for a wide variety of applications. The device utilizes two inputs, the high voltage input and the low voltage input, which allows the device to be configured for either step-up or step-down conversions.
The key feature of the QMS20DE is its high efficiency, which allows it to achieve up to 95% efficiency in converting DC power. This is achieved through its unique design, which includes a synchronous rectifier and a patented switch control circuit. The switch control circuit utilizes a hysteretic control system to regulate the switching frequency of the converter, resulting in high conversion efficiency and low switching noise.
The QMS20DE is widely used in a variety of applications including telecom equipment, automotive systems, industrial and medical applications, and portable devices. It can be used to power small battery-operated electronic devices, as well as large industrial systems. Its wide input voltage range and adjustable output voltage also make it suitable for powering devices that require a specific voltage level for optimal operation.
The working principle of the QMS20DE is based on a hysteretic control system. This system uses a comparator to compare the input voltage to an internal reference voltage in order to determine when to turn the converter on and off. When the input voltage is higher than the reference voltage, the comparator will turn off the converter, thus allowing the voltage to drop. When the voltage drops below the reference voltage, the comparator will turn on the converter, allowing the voltage to increase. This process is repeated until the desired output voltage is reached.
In addition to the hysteretic control system, the QMS20DE also utilizes a synchronous rectifier. This rectifier utilizes two transistors in order to convert energy from AC to DC. One transistor is in the high voltage input and the other is in the low voltage input. When the two transistors are alternately switched, the alternate current of the input and output circuits is rectified, resulting in a higher efficiency rating.
The QMS20DE is a high performance, efficient DC-DC converter that is designed to be used in a wide range of applications. It is designed to provide stable, reliable power at various different voltage levels, while also providing high efficiency ratings. Its hysteretic control system, as well as its synchronous rectifier, allow it to achieve high performance levels, making it suitable for a variety of devices, ranging from telecom equipment, to automotive systems, to portable devices.
The specific data is subject to PDF, and the above content is for reference
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