DS2660-7R

The S Series of DC-DC and AC-DC converters represents a broad and flexible range of power supplies for use in advanced electronic systems. Features include high efficiency, high reliability, low output voltage noise and excellent dynamic response to load/line changes. LS models can be powered by DC or AC with a wide-input frequency range (without PFC). The converter inputs are protected against surges and transients. An input over- and undervoltage lockout circuitry disables the outputs, if the input voltage is outside of the specified range. Certain types include an inrush current limiter preventing circuit breakers and fuses from tripping at switchon. All outputs are open- and short-circuit proof, and are protected against overvoltages by means of built-in suppressor diodes. The output can be inhibited by a logic signal applied to pin 18 (i). The inhibit function is not used, pin 18 must be connected with pin 14 to enable the outputs. LED indicators display the status of the converter and allow for visual monitoring of the system at any time. Full input-to-output, input-to-case, output-to-case, and output to output isolation is provided. The converters are designed, built, and safety-approved to the international safety standards IEC/EN 60950-1. They are particulary suitable for railway applications and comply with EN 50155 and EN 50121-3-2. The case design allows operation at nominal load up to 71°C in a free-air ambient temperature. If forced cooling is provided, the ambient temperature may exceed 71°C, but the case temperature must remain below 95°C under all conditions.

• Efficiency: 83%
• RoHS lead-free-solder and lead-solder-exempted products are available.
• Compliant with EN 50155, EN 50121-3-2, EN 45545.
• Class I equipment
• Extremly wide input voltage range: 44 - 220 VDC
• Input over- and undervoltage lockout
• Output voltage is 24 V
• 1 or 2 outputs: SELV, no load, overload, and shortcircuit proof
• Rectangular current limiting characteristic
• Operational ambient temperature range TA: –25°C to 71°C
• PCBs protected by lacquer
• Very high reliability