HFL28 Series High Reliability DC/DC Converters
1 FEATURES ofHFL28 Series High Reliability DC/DC Converters
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16 to 40 VDC input, typical 28V |
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50W to 65W output power |
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-55℃ to +125℃ operation |
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Fully isolated |
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100MΩminimum (500V DC) isolation |
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Inhibit and indefinite short circuit protection |
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43W/in3 power density |
Size: 76.33×38.23×10.16mm3 |
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Equivalent with Interpoint’s MFL Series |
Weight: 80 grams |
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Hermetically sealed meatal cases |
Figure 1 HFL28 series DC/DC converters |
2 DESCRIPTION of HFL28 Series High Reliability DC/DC Converters
The HFL28 Series of DC/DC converters offer up to 65 watts of output power with high reliability. The converters are packaged in hermetically sealed metal cases, making them ideal for use in aviation, aerospace and other high reliability applications.
The HFL28 series of converters use a pulse width modulated and single ended forward topology design. The operating principle is that the sampling signal of output voltage , coupled by the opto-coupler, works together with the sampling signal of input loop current to regulate the pulse width of the controller. The magnetic feedback technology can avoid magnetic saturation and improve products reliability effectively.
Thick film hybrid techniques provide the HFL 28 Series of dc dc converter design with reliability levels and optimum miniaturazation.The design and manufacturing process of HFL28 Series of converters are in compliance with General Standards of Hybrid Integrated Circuits and detailed standards of manufacturing. Connected to a HFD-CE03 filter, the HFL28 Series of converters can achieve better electromagnetic compatibility(EMC) performance.
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