30W DC/DC CONVERTER OPERATES WITH CONVECTION COOLING ON A 39MM X 33MM FOOTPRINT
COSEL's SFCS & SFLS series of DC/DC converters save board space thanks to their compact size - to include their extremely low height.
What's more, both series of galvanically isolated converters include integrated EMC shielding, while offering additional functionality that meets the needs of automation and measuring applications, as well as data and telecommunications systems. The devices are designed for automated SMD placement and can be optionally adapted for conventional THD mounting.
In addition to over and undervoltage cutoff and overload protection, other standard features of the product family include remote On/Off control, an alarm pin for controlling the operating status and the ability to operate the devices in parallel without additional decoupling diodes. The low-profile SFLS series furthermore permits control of ramp-ups during switch-on operations. The topology is based on a synchronous rectification design that achieves continuous efficiencies of 90% and 92%, respectively, when converting the rated 48VDC/60VDC (at user's option) or 24VDC to outputs ranging from 3.3VDC to 15VDC. At partial loading up to 20% of rated power, efficiency remains above 80%. The input with integrated protection operates in a 2:1 range (18VDC to 36VDC or 36VDC to 72VDC). With a compact footprint of 39mm x 33mm at an SMD height of only 4.4mm (SFLS) or 8.8mm (for the cased SFCS variants), these converters deliver an output of 30W under natural convection cooling (air rate < 2m/s). The ambient temperature range of -40°C to +70°C can be extended up to 85°C with a slight derating. An internal filter provides interference suppression according to CISPR "A", while the rated ripple and noise values range from 20mVpp to 40mVpp.
Manufactured in Japan using fully automated production techniques, these converters offer highest reliability. Based on a series of successful tests with OEMs, COSEL offers a 5-year guarantee with full confidence. The products carry international safety approvals - cUL, TÜV/EN, CE(LVD) - and thus conform to the current standards set forth in IEC60950-1. If you prefer to forego testing the values and parameters for yourself, we would be pleased to send you the existing detailed test reports for the desired versions.
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Specifikations:
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DC Input: 18VDC to 36VDC / 36VDC to 72VDC
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DC Output: 3.3V / 5V / 12V / 15V
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Isolation: 1,500VDC; test duration 1min.
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Efficiency: 90-92% max.
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Mounting Type: SMD or THD metal cased
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Dimensions, 30W (Low): 41mm x 36mm / h=4.4mm
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Dimensions, 30W (Cased): 39mm x 34mm / h=8.8mm
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Weight: 12g to 25g incl. metal case
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Ambient Temperature Range:-40°C to +85°C
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Cooling Rating: convection / forced air
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Safety: 60950-1 cUL; TÜV; CE
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Signals: Remote On/Off, Alarm, Trim
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Parallel Configuration: with simultaneous start pin
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Ramp-ups: externally controllable
If you require quick delivery of samples and data sheets, please contact:
Michael Schrutka, EXT 131
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