8.5 Watt UW Triple Series DC/DC Converters Features Description n Wide 4:1 Input Voltage Range (9-36 or 18-72VDC) n Triple Low Noise, Highly Regulated Outputs The 8.5 Watt Triple Output DC/DC converters are ideal for wide (4:1) input range applications. These units are particularly well suited for solar powered RTUs and instruments. n Efficiency 70% for All Line Conditions n No Derating to 80°C Case Temperature n Six-Sided Shielded Low Thermal Gradient Copper Case n 500 VDC Minimum Input to Output Isolation n Overvoltage Protected Outputs n Pulse by Pulse Digital Current Limiting n Five Year Warranty They are designed with a high accuracy feedback control circuit and coupled inductor magnetics. Each converter has both a logic shut down pin and thermal overload protection circuitry. All outputs and the power switch are overvoltage protected. These converters are encased in a six-sided, completely shielded copper case. The UW Triple Series is covered under the CALEX 5 Year Warranty. Selection Chart Model 12T5.12UW Input Range VDC MIN MAX Outputs VDC Outputs mA 9.00 36.00 5, ±12 800, ±185 800, ±150 12T5.15UW 9.00 36.00 5, ±15 48T5.12UW 18.00 72.00 5, ±12 800, ±185 48T5.15UW 18.00 72.00 5, ±15 800, ±150 8.5 Watt UW Triple Series Block Diagram SHIELDED ISOLATION TRANSFORMER 6 +5 OUTPUT 1000 µF THERMAL SHUTDOWN 100 µF A 7 +5 CMN 3 + OUTPUT 4 ± CMN 5 - OUTPUT 100 µF -INPUT 2 LC INPUT FILTER PWM CONTROL FEEDBACK AMPLIFIER 1997 1 ON/OFF 8 1.5 MEG || 0.1µF SIX-SIDED SHIELDED COPPER CASE 2401 Stanwell Drive Concord, CA 94520-4841 (510) 687-4411 • Fax (510) 687-3333 http://www.calex.com 1 CALEX FaxFACTS: 129 +INPUT 8.5 Watt UW Triple Series DC/DC Converters Input Parameters* Model 12T5.12UW 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 MIN MAX TYP MAX TYP TYP TYP 12T5.15UW 48T5.12UW 9.00 36.00 48T5.15UW 18.00 72.00 VDC 30 60 908 19 908 19 MAX mA P-P 230 15 TYP 230 15 78 % kHz 85 TYP mA 55 45 VDC 120 Recommended Fuse Units ms (2) Output Parameters* Line Regulation Vin = Min-Max VDC Short Term Stability (4) MIN MAX MIN TYP MAX TYP MAX TYP MAX TYP Long Term Stability TYP Transient Response (5) Dynamic Response (6) Input Ripple Rejection (7) TYP TYP TYP TYP MAX TYP MAX TYPO Rated Current (3) Voltage Range 100% Load Load Regulation Min-Max Load Noise, 0-20MHz bw Temperature Coefficient Overvoltage Clamp (8) Short Circuit Protection to Common for all Outputs ±12 50 185 11.76 12.00 12.24 2.0 3.0 0.5 1.0 0.02 ±15 50 150 14.55 15.00 15.45 2.0 3.0 0.5 1.0 40 70 35 20 50 120 200 15.0 75 6.8 Units VDC mA VDC % % % 0.2 %/kHrs 50 µs mV peak dB mV P-P ppm/°C A 18.0 VDC Continuous, 8 Hours Minimum Current Limit and Thermal Overload 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 and then adding 20 to 25 percent. (3) The module will not be damaged if run at less than minimum load. Regulation can degrade with less than minium load or substatial load imbalance. (4) Short term stability is specified after a 30 minute warm-up at full load, and with constant line, load and ambient conditions. (5) The transient response is specified as the time required to settle from 25 to 75% step load change (rise time of step = 2µ Sec.) to a 1% error band. (6) Dynamic response is the peak overshoot voltage during the transient response time defined in note 5 above. 2401 Stanwell Drive Concord, CA 94520-4841 (510) 687-4411 • Fax (510) 687-3333 12T5.15UW 48T5.15UW (7) The input ripple rejection is specified for DC to 120Hz ripple with a modulation amplitude of 1% Vin. (8) For module protection only, see also note 2. (9) The logic shutdown pin is Open Collector TTL, CMOS, and relay compatible. The input to this pin is referenced to input minus. (10) 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. (11) The case thermal impedance is specified as the case temperature rise over ambient per package watt dissipated. http://www.calex.com 2 1997 Output Voltage 12T5.12UW 48T5.12UW CALEX FaxFACTS: 129 Model 12T5.12UW 12T5.15UW 48T5.12UW 48T5.15UW 5 200 800 4.90 5.00 5.10 2.0 3.5 0.5 1.5 8.5 Watt UW Triple Series DC/DC Converters General Specifications * All Models Logic Shutdown (9) ON Logic Level or Leave Pin Open OFF Logic Level Input Resistance Converter Idle Current, Shut Down Pin Low Isolation Isolation Voltage 10µA Leakage Input-Output Input to Output Capacitance Environmental Case Operating Range No Derating Units MIN 2.4 VDC MAX TYP 1.2 10 VDC kohms TYP 6.0 mA MIN 500 VDC TYP 190 pF MIN MAX MIN Case Functional Range (10) MAX MIN Storage Range MAX Thermal Impedance (11) TYP Thermal Shutdown TYP Case Temperature General -25 80 -40 90 -55 100 4.4 °C/Watt 90 °C Unit Weight 7.0 °C °C BOTTOM VIEW Mechanical tolerances unless otherwise noted: X.XX dimensions: ±0.020 inches X.XXX dimensions: ±0.005 inches TYP Mounting Kit oz Seal around terminals is not hermetic. Do not immerse units in any liquid. MS9 Pin 1 2 3 4 5 6 7 8 12T5.15UW EFFICIENCY Vs. LINE INPUT 80 100% FULL LOAD 75 50% FULL LOAD Function +INPUT -INPUT +12/ +15 OUTPUT ±OUTPUT CMN [1] -12/-15 OUTPUT +5 OUTPUT +5 CMN [1] ON/OFF [1] Note: Pins 4 & 7 are connected internally. 70 Typical Performance (Tc=25°C, Full Rated Load). 65 5 10 15 20 25 30 35 40 LINE INPUT (VOLTS) A CURVES APPLICABLE TO BOTH ±12 AND ±15 VDC 12T5.15UW EFFICIENCY Vs. LOAD 48T5.15UW EFFICIENCY Vs. LINE INPUT 85 85 LINE = 12VDC 100% FULL LOAD 50% FULL LOAD 75 LINE = 9VDC 75 1997 EFFICIENCY (%) EFFICIENCY (%) 80 80 70 LINE = 36VDC 70 65 60 65 10 20 30 40 50 60 70 80 20 2401 Stanwell Drive Concord, CA 94520-4841 (510) 687-4411 • Fax (510) 687-3333 40 60 80 100 LOAD (%) LINE INPUT (VOLTS) http://www.calex.com 3 CALEX FaxFACTS: 129 EFFICIENCY (%) SIDE VIEW °C 8.5 Watt UW Triple Series DC/DC Converters Typical Performance (Tc=25°C, Full Rated Load). CURVES APPLICABLE TO BOTH ±12 AND ±15 VDC +5 VOLT OUTPUT* CROSS REGULATION Vs. PERCENT OF FULL LOAD 48T5.15UW EFFICIENCY Vs. LOAD EFFICIENCY (%) 80 LINE = 48VDC 75 70 LINE = 72VDC 65 60 55 20 40 60 80 1.0 0.5 0.0 +\-15 MIN LOAD -0.5 -1.0 -1.5 20 30 40 50 60 70 80 90 12T INPUT CURRENT Vs. LINE INPUT VOLTAGE +15 VOLT OUTPUT* CROSS REGULATION Vs. PERCENT OF FULL LOAD NORMALIZED OUTPUT VOLTAGE (%) INPUT CURRENT (AMPS) +\-15 FULL LOAD 1.5 5 VOLT LOAD (%) 1.2 1.0 0.8 100% FULL LOAD 0.6 0.4 0.2 50% FULL LOAD 0.0 10 15 20 25 30 35 +5 FULL LOAD 0.5 -15 FULL LOAD 0.0 +5 FULL LOAD -15 MIN LOAD -0.5 +5 MIN LOAD -15 FULL LOAD -1.0 +5 MIN LOAD -15 MIN LOAD -1.5 -2.0 30 40 50 60 70 80 90 LINE INPUT (VOLTS) +15 VOLT LOAD (%) 48T INPUT CURRENT Vs. LINE INPUT VOLTAGE -15 VOLT OUTPUT* CROSS REGULATION Vs. PERCENT OF FULL LOAD NORMALIZED OUTPUT VOLTAGE (%) 0.6 0.4 100% FULL LOAD 0.2 50% FULL LOAD 0.0 10 20 30 40 50 60 70 80 0.4 A 0.2 100 +5 FULL LOAD +15 FULL LOAD -0.0 -0.2 -0.4 +5 MIN LOAD -0.6 +15 FULL LOAD -0.8 -1.0 30 LINE INPUT (VOLTS) 2401 Stanwell Drive Concord, CA 94520-4841 (510) 687-4411 • Fax (510) 687-3333 100 1.0 40 0.8 INPUT CURRENT (AMPS) 2.0 LOAD (%) 1.4 0 2.5 100 1.6 5 3.0 40 50 60 70 80 90 100 1997 LINE = 18VDC -15 VOLT LOAD (%) http://www.calex.com 4 CALEX FaxFACTS: 129 NORMALIZED OUTPUT VOLTAGE (%) 85 8.5 Watt UW Triple Series DC/DC Converters Typical Performance (Tc=25°C, Full Rated Load). CURVES APPLICABLE TO BOTH ±12 AND ±15 VDC 12T IDLE CURRENT Vs. LINE INPUT 48T IDLE CURRENT Vs. LINE INPUT INPUT CURRENT (mAMPS) 11 14 12 10 8 10 9 8 7 6 6 15 20 25 30 35 40 10 20 30 LINE INPUT (VOLTS) 40 50 60 70 80 LINE INPUT (VOLTS) OUTPUT VOLTAGE Vs. CASE TEMPERATURE 0.4 +/-15 OUTPUT 0.2 +5 OUTPUT 0.0 -0.2 -0.4 -0.6 -30 -20 -10 0 10 20 30 40 50 60 70 80 CASE TEMPERATURE (Deg C) A 1997 10 2401 Stanwell Drive Concord, CA 94520-4841 (510) 687-4411 • Fax (510) 687-3333 http://www.calex.com 5 CALEX FaxFACTS: 129 5 NORMALIZED OUTPUT (%) INPUT CURRENT (mAMPS) 16