DCx40 DC/DC Converters FEATURES • • • • • • • • 40 W dc/dc converter Same size as ac input version Drop-in replacement for GLC40 series Two input ranges: 24 V and 48 V Two-year warrranty Full off-line isolation Single and multiple output versions available marked to LVD SPECIFICATIONS: Input Hold-up Time power dissipation in some outputs. Consult factory for application assistance. 6mSec minimum from loss of dc input at full load, nominal line. Efficiency Output Power 68% minimum at full rated load, nominal input voltage, depending upon model and load distribution. Single-output models = 72% to 80% depending upon model. DCD models: 24 Vdc, 18-32 Vdc; DCG models: 48 Vdc, 36-72 Vdc. Normal continuous output power is 40 W (45 W Pk) for 60 sec. Output Regulation Regulation for multiple-output models measured by ±40% load changeFrom 60% rated load with all other outputs at 60% full rated load and a line voltage change from low line to high line. Initial set tolerance is measured with all outputs at 60% of full rated load. Output voltage V1 requires 20% load for proper regulation of multiple-output models. Regulation for single-output models measured by changing load from 5% load to 50% load or 50% load to full load in either direction. Overshoot Remote Sense Internal fuse provided on all units. Inadvertent reverse voltage application will blow fuse without risk of fire or shock hazard. Otherwise, internal fuse is designed to protect against catastrophic circuit failures. Fuse does not blow on overload or short circuit. Standard on single-output versions. Capable of compensating for 0.25 V total of cabling losses in the output voltage. Overload Protection Fully protected against short circuit and output overload. Short circuit protection is cycling type power limit on outputs #1 and #2; foldback type on output #3. Factory set to begin power limiting at approximately 55 W. Less than 3% at turn-on under nominal conditions, inversely proportional to input voltage and temperature. Less than 2% overshoot at turn-off under all conditions. Turn-on Time Less than 1 sec. At nominal line, 25°C (inversely proportional to input voltage and thermistor temperature). Input Protection Inrush Current Inrush is limited by internal thermistors to 22 A pk @ 24 Vdc and 44 A pk @ 48 Vdc. No Load Turn-on/Standby Temperature Coefficient No degradation of reliability will occur; however, regulation may be affected. 0.03%/°C typical on all outputs. Output Noise and Ripple Designed for 0 to 50°C operation at full rated output power; derate output current and total output power by 2.5% per °C above 50°C. See Environmental and Packing Specification on next page. 0.5% RMS, 1.5% Pk-Pk, 20 MHz bandwidth, differential mode. Measured with scope probe directly across output terminals of the power supply with load terminated with 0.1 µf capacitor. Environmental Storage Transient Response -40 to +85 °C. Main output; 500 µsec typical response time for return to within 0.5% of final value for a 50% load step within the regulation limits of minimum and maximum load, ∆i/∆t<0.2/µsec. Maximum voltage deviation is 3.5%. EMI Compliance Overvoltage Protection Safety Built in on V1 with firing point set per output ratings table. OVP firing reduces outputs 1 and 2 to less than 50% of nominal voltage in 50 msec. All DCx models are approved to UL 1950 (with no D4 deviations), CSA22.2 No. 234 Level 3, IEC950, EN60950. All models include built-in EMI filtering to meet or exceed the emissions requirements of FCC Class B. CISPR 22-Class B. Typical margins >3dB at all frequencies and line/load conditions. Voltage Adjustment Factory set on standard units. However, optional potentiometer adjusts voltage from 4.7 V to OVP point (6.2 V nominal) on the +5 V output. Note: output #1 must not be more than 1% below nominal to achieve full output voltage range on output #2. Output regulation limits in some models may be exceeded when the main output is adjusted beyond +/- 1% of nominal voltage. See output ratings chart for additional notes and conditions. High voltage settings may degrade the reliability of the unit due to excessive 104 Condor D.C. Power Supplies, Inc., 2311 Statham Parkway, Oxnard, CA 93033 800-235-5929 • 805-486-4565 • FAX 805-487-8911 • www.condorpower.com DCx40 DC/DC Converters Model (B) Output No. Output Minimum Load Current Total Regulation OVP Ripple and Noise 1 +5.1 V 0.4 A 4A 2% 6.2 ± 0.6 V 1% DCx40A DCx40B DCx40D 2 +12 V 0.2 A 2A 6% 1% 3 -12 V 0A 0.4 A 5% 1% 1 +5.1 V 0.4 A 4A 2% 2 +15 V 0.2 A 2A 6% 3 -15 V 0A 0.4 A 5% 1 +5.1 V 0.4 A 4A 2% 2 +24 V 0.1 A 1A 6% 3 -12 V 0A 6.2 ± 0.6 V Notes A 1% 1% A 1% 6.2 ± 0.6 V 1% 1% 0.4 A 5% DCx40-5 1 7.8 A 2% 6.2 ± 0.6 V 1% DCx40-12 1 3.3 A 2% 14 ± 1.1 V 1% A 1% DCx40-15 1 2.7 A 2% 18.5 ± 1.5 V 1% DCx40-24 1 1.7 A 2% 28 ± 2.5 V 1% DCx40-28 1 1.4 A 2% 34 ± 2.8 V 1% A. To maintain these regulation conditions, the 5.1 V current must be at least 20% of V2 and not greater than five times the V2 current, and requires +5.1 V to be adjusted within ±1%, with at least a 0.4 A load. B. Replace “x” with “D” for 24 Vdc input or “G” for 48 Vdc input. DCx40 MECHANICAL SPECIFICATIONS Dimensions: Inches Millimeters Environmental Specification Temperature (A) Humidity (A) Shock (B) Altitude Vibration (C) Operating o Non-operating 0 to 50 C -40 to +85oC 0 to 95% RH 0 to 95% RH 20 gpk 40 gpk -500 to 10,000 ft -500 to 40,000 ft 1.5 grms, 0.003 g2/Hz 5 grms, 0.026 g2/Hz A. Units should be allowed to warm up/operate under non-condensing conditions before application of power. Derated output current and toal output power by 2.5% per ºC above 50ºC. B. Random vibration—10 to 2000Hz, 6dB/octave roll-off from 350 to 2000Hz, 3 orthogonal axes.Tested for 10 min./axis operating and 1 hr./axis non-operating. C. Shock testing—half-sinusoidal, 10 ± 3 ms duration, ± direction, 3 orthogonal axes, total 6 shocks. Condor D.C. Power Supplies, Inc., 2311 Statham Parkway, Oxnard, CA 93033 800-235-5929 • 805-486-4565 • FAX 805-487-8911 • www.condorpower.com 105