12 Watt Dual Series DC/DC Converters Features Description ! Low Noise Output ! LC Type Input Filter ! Six-Sided Shielded Steel Case These 10 and 12 Watt Dual Output DC/DC converters are designed for telecommunications, medical or industrial equipment and instrumentation systems. The converters feature very wide input voltage ranges. ! Very Wide Input Voltage Ranges (9-36, 18-54, and 24-72) ! High Efficiency Operation ! Long Term Output Fault Survival ! 5 Year Warranty The converter consists of a hi-speed chopper circuit using state of the art MOSFET technology, isolation transformer, and high regulation linear post regulator. This provides for very low noise and ultra stable output voltages. Selection Chart Model Input Range VDC MIN MAX Outputs VDC Outputs mA ±500 24D12.500 9.00 36.00 ±12.0 24D15.400 9.00 36.00 ±15.0 ±400 28D5.1000 18.00 54.00 ±5.0 ±1000 48D12.500 24.00 72.00 ±12.0 ±500 48D15.400 24.00 72.00 ±15.0 ±400 12 Watt Dual Series Block Diagram CROSS COUPLED FOLDBACK CURRENT LIMIT 3 + OUTPUT A + INPUT 1 - INPUT 2 LC INPUT FILTER 100µF LOW TC REFERENCE PWM CONTROL 4 CMN 100µF SHIELDED ISOLATION TRANSFORMER CROSS COUPLED FOLDBACK CURRENT LIMIT 5 - OUTPUT SIX-SIDED SHIELDED STEEL CASE Manufacturing Company, Inc. • Concord, California 94520 • Ph: 925/687-4411 or 800/542-3355 • Fax: 925/687-3333 • www.calex.com • Email: [email protected] 1 4/8/99 STCO #970624-2, STCO #990408-1 PWM FEEDBACK 12 Watt Dual Series DC/DC Converters Input Parameters* Model 24D12.500 24D15.400 Units Input Current Full Load No Load MIN MAX TYP MAX TYP TYP Efficiency TYP 70 % Switching Frequency TYP 100 kHz Maximum Input Overvoltage, 100ms No damage MAX 40 VDC Turn-on Time, 1% Output Error TYP 60 ms Voltage Range Reflected Ripple, 0-20MHz bw 9.00 36.00 20 45 VDC mA P-P 710 40 700 40 Recommended Fuse mA (2) Model 28D5.1000 18.00 54.00 20 50 600 40 48D12.500 48D15.400 Input Current Full Load No Load Efficiency TYP 60 70 % Switching Frequency TYP 87 100 kHz Maximum Input Overvoltage, 100ms No damage MAX 60 80 VDC Turn-on Time, 1% Output Error TYP Voltage Range Reflected Ripple, 0-20MHz bw 24.00 72.00 15 30 Units MIN MAX TYP MAX TYP TYP VDC mA P-P 360 24 350 24 60 Recommended Fuse mA ms (2) Output Parameters* 24D12.500 48D12.500 ±12 0 ±500 11.90 12.00 12.10 0.6 1.0 0.02 0.07 0.02 0.07 0.02 28D5.1000 Output Voltage Line Regulation Vin = Min-Max VDC Short Term Stability (4) MIN MAX MIN TYP MAX TYP MAX TYP MAX TYP MAX TYP Long Term Stability TYP Rated Current (3) Voltage Range 100% Load Output Balance (Plus to Minus Output, Full Load) Load Regulation 0-100% Load ±5 0 +1100/-900 4.95 5.00 5.05 0.05 0.10 24D15.400 48D15.400 ±15 0 ±400 14.90 15.00 15.10 Units VDC mA VDC % 0.02 0.07 A % % % 0.3 %/kHrs Transient Response (5) TYP 20 µs Dynamic Response (6) TYP 20 mV peak Input Ripple Rejection (7) TYP TYP MAX TYP MAX 60 10 40 50 150 dB Noise, 0-20MHz bw Temperature Coefficient 100 300 Short Circuit Protection to Common for all Outputs mV P-P 50 150 ppm/°C Continuous, 8 Hours Minimum Current Limit NOTES parameters measured at Tc=25°C, nominal input voltage * All and full rated load unless otherwise noted. Refer to the CALEX Application Notes for the definition of terms, measurement circuits and other information. (2) Determine the correct fuse size by calculating the maximum DC current drain at low line input, maximum load then adding 20 to 25 percent. (3) (4) (5) (6) No minimum load required. Short term stability is specified after a 30 minute warm-up at full load. Transient response is defined as the time for the output to settle from a 100% step load change to a 1% error band (rise time of step = 2µSec). Dynamic response is defined as the peak overshoot during a transient as defined in note 5 above. Manufacturing Company, Inc. • Concord, California 94520 • Ph: 925/687-4411 or 800/542-3355 • Fax: 925/687-3333 • www.calex.com • Email: [email protected] 2 4/8/99 STCO #970624-2, STCO #990408-1 MODEL 12 Watt Dual Series DC/DC Converters General Specifications * All Models Isolation Isolation Voltage 10µA Leakage Input-Output Input to Output Capacitance Environmental Case Operating Range No Derating Case Functional Range (8) Storage Range Thermal Impedance (9) Units MIN 500 VDC TYP 120 pF MIN MAX MIN MAX MIN MAX TYP -25 80 -40 85 -55 100 6 °C/Watt 6.5 oz °C °C °C General TYP Mounting Kits (7) (8) (9) MK215-022 & MK215-08BDV BOTTOM VIEW The input ripple rejection is specified for DC to 120Hz ripple with a modulation amplitude of 1% of Vin. The functional temperature range is intended to give an additional data point for use in evaluating this power supply. At the low functional temperature the power supply will function with no side effects, however sustained operation at the high functional temperature will reduce expected operational life. The data sheet specifications are not guaranteed over the functional temperature range. The case thermal impedance is specified as the case temperature rise over ambient per package watt dissipated. Mechanical tolerances unless otherwise noted: X.XX dimensions: ±0.020 inches X.XXX dimensions: ±0.005 inches Pin 1 2 3 4 5 Typical Performance (Tc=25°C, Full Rated Load). 24D15.400 EFFICIENCY Vs. LINE INPUT Function +INPUT -INPUT +OUTPUT CMN -OUTPUT 48D15.400 EFFICIENCY Vs. LINE INPUT 72 A 75 100% FULL LOAD 70 EFFICIENCY (%) EFFICIENCY (%) 100% FULL LOAD 68 50% FULL LOAD 66 64 10 15 20 25 30 SIDE VIEW 35 70 65 50% FULL LOAD 60 40 20 LINE INPUT (VOLTS) 30 40 50 60 70 80 LINE INPUT (VOLTS) Manufacturing Company, Inc. • Concord, California 94520 • Ph: 925/687-4411 or 800/542-3355 • Fax: 925/687-3333 • www.calex.com • Email: [email protected] 3 4/8/99 STCO #970624-2, STCO #990408-1 Unit Weight 12 Watt Dual Series DC/DC Converters Typical Performance (Tc=25°C, Full Rated Load). 48D15.400 EFFICIECNY Vs. LOAD 24D INPUT CURRENT Vs. LINE INPUT 80 INPUT CURRENT (AMPS) 2.50 EFFICIENCY (%) 70 LINE = 24VDC 60 LINE = 48VDC 50 LINE = 72VDC 40 2.00 100% RATED LOAD 1.50 1.00 0.50 50% RATED LOAD 30 0.00 0 20 40 60 80 100 0 5 10 LOAD (%) OUTPUT VOLTAGE Vs CASE TEMPERATURE 20 25 30 35 40 70 80 48D INPUT CURRENT Vs. LINE INPUT 1.2 INPUT CURRENT (AMPS) 0.2 NORMALIZED OUTPUT (%) 15 LINE INPUT (VOLTS) 0.1 NEGATIVE OUTPUT 0.0 POSITIVE OUTPUT -0.1 1.0 0.8 0.6 100% RATED LOAD 0.4 0.2 50% RATED LOAD 0.0 -30 -20 -10 0 10 20 30 40 50 60 70 80 0 10 20 CASE TEMPERATURE (Deg C) 30 40 50 60 LINE INPUT (VOLTS) OUTPUT VOLTAGE Vs. OUTPUT LOAD OUTPUT IMPEDANCE Vs. FREQUENCY 120 100 + OUTPUT IMPEDANCE (OHMS) 80 - OUTPUT 60 40 .1 .01 A 20 0 .001 0 20 40 60 80 100 120 140 160 180 200 10 100 1K 10K 100K 1M FREQUENCY (Hz) OUTPUT LOAD (%) Manufacturing Company, Inc. • Concord, California 94520 • Ph: 925/687-4411 or 800/542-3355 • Fax: 925/687-3333 • www.calex.com • Email: [email protected] 4 4/8/99 STCO #970624-2, STCO #990408-1 OUTPUT VOLTAGE (%) 1