6 Watt Dual Series DC/DC Converters Features Description ! Low Profile Copper Case (0.375" High) ! Six-Sided Shielded Case Ideal for industrial applications, these 6 Watt Dual Output converters are suitable for use in telecommunications, medical and other systems that require floating outputs. ! Low Input/Output Noise Operation ! 700 VDC Input/Output Isolation ! Short Circuit Protected Output ! Fixed Frequency Operation Independent of Line and Load ! Highly Regulated/Low Drift Output ! Rugged High Speed MOSFET Power Chopper ! 5 Year Warranty These DC/DC converters operate at a fixed frequency that is independent of line and load. The isolation transformer provides 700 VDC isolation between input and output grounds allowing the outputs to be floated above or below the input ground. Designed for maximum performance, each unit has an LC input filter, high speed MOSFET power chopper and short circuit protected linear post regulators. The copper case, measuring only 0.375" high, is shielded on all six sides to minimize radiated noise. All converters in this series are guaranteed under the CALEX 5 Year Warranty. Selection Chart Model Input Range VDC MIN MAX Outputs VDC Outputs mA 12D12.250A 11.16 13.20 ±12 ±250 12D15.200A 11.16 13.20 ±15 ±200 ±250 24D12.250A 22.32 26.40 ±12 24D15.200A 22.32 26.40 ±15 ±200 28D12.250A 26.04 30.80 ±12 ±250 28D15.200A 26.04 30.80 ±15 ±200 48D12.250A 44.64 52.80 ±12 ±250 48D15.200A 44.64 52.80 ±15 ±200 6 Watt Dual Output Series Block Diagram SERIES PASS REGULATOR 3 + OUTPUT 4 CMN A - INPUT 2 LC INPUT FILTER FIXED FREQUENCY POWER DRIVER SERIES PASS REGULATOR CASE 5 - OUTPUT 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 1.29.98 + INPUT 1 6 Watt Dual Series DC/DC Converters Input Parameters* Model 12D12.250A Voltage Range Reflected Ripple, 0-20MHz bw Input Current Full Load No Load Efficiency Switching Frequency Maximum Input Overvoltage, 100ms No damage Turn-on Time, 1% Output Error (2) MIN MAX TYP MAX TYP TYP TYP 12D15.200A 780 45 64 769 50 65 TYP Switching Frequency Maximum Input Overvoltage, 100ms No damage Turn-on Time, 1% Output Error (2) 362 23 69 mA % kHz 30 VDC 3 ms (3) 28D12.250A Reflected Ripple, 0-20MHz bw mA P-P 378 22 66 15 TYP Units VDC 75 MAX Model Input Current Full Load No Load Efficiency 24D15.200A 22.32 26.40 5 15 Recommended Fuse Voltage Range 24D12.250A 11.16 13.20 10 25 MIN MAX TYP MAX TYP TYP TYP 28D15.200A 48D12.250A 26.04 30.80 7 15 325 22 66 48D15.200A 44.64 52.80 15 25 315 22 68 TYP 198 21 63 VDC mA P-P 189 21 66 75 MAX 60 TYP mA % kHz 35 3 Recommended Fuse Units VDC ms (3) Output Parameters* Output Voltage 12D15.200A 24D15.200A 28D15.200A 48D15.200A ±15 0 ±200 14.90 15.00 15.10 0.6 1.0 Line Regulation Vin = Min-Max VDC Transient Response (6) MIN MAX MIN TYP MAX TYP MAX TYP MAX TYP MAX TYP Dynamic Response (7) TYP 10 Input Ripple Rejection (8) TYP TYP MAX TYP MAX 65 10 40 Rated Current (4) Voltage Range 100% Load Output Balance (Plus to Minus Output, Full Load) Load Regulation 0-100% Noise, 0-20MHz bw Temperature Coefficient 0.02 0.10 0.05 0.10 never exceeds 1% 100 250 VDC mA VDC % % % A µs mV peak dB mV P-P 150 300 Short Circuit Protection to Common for all Outputs Units 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) Turn on time is defined as the time from the application of power until the output is within 1% of its final value. (3) (4) (5) Determine the correct fuse size by calculating the maximum DC current drain at low line input, maximum load and then adding 20 to 25 percent. No minimum load required. Short term stability is specified after a 30 minute warm-up at full load and with constant line, load and ambient conditions. 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 1.29.98 Model 12D12.250A 24D12.250A 28D12.250A 48D12.250A ±12 0 ±250 11.90 12.00 12.10 0.6 1.0 6 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 Storage Range Thermal Impedance (9) Units MIN 700 VDC TYP 75 pF MIN MAX MIN MAX TYP -40 85 -55 100 10 °C/Watt 1.7 oz °C °C General Unit Weight Mounting Kits TYP BOTTOM VIEW MS6 & MS15 SIDE VIEW Mechanical tolerances unless otherwise noted: X.XX dimensions: ±0.020 inches (7) (8) (9) X.XXX dimensions: ±0.005 inches The transient response is specified as the time required for the output to settle from a 100% step load change (Rise time of step = 2 µSec.) to a 1% error band. Dynamic response is the peak overshoot voltage during the transient response time as defined in note 6 above. The input ripple rejection is specified for DC to 120Hz ripple with a modulation amplitude of 1% Vin. The case thermal impedance is specified as the case temperature rise over ambient per package watt dissipated. Seal around terminals is not hermetic. Do not immerse units in any liquid. Pin 1 2 3 4 5 Function +INPUT -INPUT +OUTPUT CMN -OUTPUT A 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 1.29.98 (6)