DS550DC-3-003

The Artesyn Embedded Power DS550DC-3-003 is a distributed power bulk front-end DC DC converter rated for 450 to 550 Watts. It features a main +12 VDC output and a +3.3 VDC standby output, designed to power standby circuitry. The unit accepts a DC input range of 36 to 75 VDC, suitable for Telco style 48 VDC inputs.

Key electrical specifications include an efficiency of 84% at 75 VDC, a maximum inrush current of 21A, and a hold-up time of 1 ms minimum. The main output voltage is regulated to within +5%/-5%, and the standby output is also within +5%/-5%. Overvoltage protection is set between 13.5 to 15 VDC for the main output and 3.76 to 4.30 VDC for the standby output. Undervoltage protection limits are 10.5 to 11.0 VDC for the main output and 2.77 to 3.00 VDC for the standby output. The turn-on delay is less than 3 seconds, with an output rise time of 3 ms to 300 ms for the +12V output.

This converter adheres to safety standards including UL/cUL62368, NEMKO+ CB report EN62368, EN62368, CE mark, China CCC, and UKCA Mark. It meets FCC Subpart J EN55032 Class A standards for both conducted and radiated EMI. The operating temperature range is from 10°C to 45°C. Special features include active current sharing, internal ORing FETs, an EEPROM for FRU data with an I2C communication interface, and built-in 40 mm x 28 mm cooling fans. The unit has an amber LED for fan_fail status and a green LED for power good/DC_OK status.

Mechanically, the DS550DC-3-003 has a 1U x 2U form factor and is designed for rack mounting. Its dimensions are 337.6mm in length, 78.0mm in width, and 40.0mm in height. It supports hot-plug operation and N+1 redundancy.