V048F480M006 Power Supplies - Board Mount

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DC/DC converters are widely used in industrial, automotive and telecom applications. The V048F480M006 is a fully integrated DC/DC converter that operates from 48V input to produce a regulated 12V output. It features wide input range of 36V to 75V, 8A maximum output current capability, and voltage output accuracy in clamshell of ±2.5%.

The V048F480M006 is ideal for industrial, telecom, and automotive applications that require a wide input range and a high degree of efficiency. This converter can be used for LED lighting, PoE and PD applications, as well as general purpose systems.

The V048F480M006 provides various features including built-in protection functions, high-efficiency operation, low noise operation, and a wide operating temperature range from -40°C to +125°C. The V048F480M006 also offers robust EMI performance and fulfills the requirements of CISPR25 Class5 emissions, allowing it to be used in sensitive applications, such as medical devices.

The main features of the V048F480M006 DC/DC converter are as follows:

• Input voltage: 36V to 75V
• Output voltage: 12V
• Output current: 8A maximum
• Voltage accuracy: ±2.5%
• Output short: Yes
• Over-temperature protection: Yes
• 1500V isolation
• High-efficiency operation: up to 93%
• Wide operating temperature range: -40°C to +125°C
• Robust EMI performance meet CISPR25 Class5

The working principle of the V048F480M006 is based on the flyback DC/DC converter topology. The circuit consists of an input section, an isolation stage, and the primary switch and its controller integrated on a single die. The output section is based on a controllable series regulating stage. The input section is built around a wide range buck converter, which regulates the source voltage and provides the necessary power to the primary switch. The isolation stage is based on a flyback transformer, which transfers the power from the input section to the output section with galvanic isolation. The flyback transformer also provides the energy for the primary switch.

The primary switch is operated in a pulse-width modulation (PWM) mode, using a Pulse Stream Modulation (PSM) technique for improved light-load efficiency. The PWM controller regulates the output voltage by controlling the duty cycle of the switch. The transformer is designed to provide the necessary electrical isolation between the two sections. The output section is a constant voltage, constant current output (CVCF) stage with excellent load regulation.

The V048F480M006 converter offers high efficiency, low noise operation, and cost-effectiveness. It is specially designed for telecom, industrial, and automotive applications where a wide input range and a high degree of efficiency are required. It is also capable of meeting the stringent requirements of CISPR 25 Class5. This device offers robust EMI performance, built-in protection, and wide operating temperature range to ensure reliable operation.

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