DFA6U12S5

(800) 678-9445 • FAX: (805) 388-0476 SINGLE OUTPUT DFA6 SERIES DESCRIPTION The DFA6 Series provides quick power conversion solutions to analog and digital systems. Requires few external components. The converters provide plug-and-play versatility. The series features an input range of 3:1. The output is electrically isolated, thereby allowing the output to be configured for positive or negative output voltage. The DFA6 provides compact system power in less than 2.3 square inches (14.8 cm2). The DFA6 Series’ ultra-wide input and no load input current (7mA) makes it well suited for battery operation in commercial and industrial applications. Full overload protection is provided by pulse-by-pulse current limiting FEATURES • Up to 6 Watts Output Power • Overcurrent Protection • Efficiency to 83% • Low Input to Output Capacitance • 700V Isolation, Input to Output • Ultra-Wide Input Range (3:1) BOTTOM VIEW 2.12 (53.85) Selection Chart 1000 500 400 1000 500 400 Units Isolation Isolation Voltage Input to Output 10µA Leakage Input to Output Capacitance Environmental Case Operating Range, Tc No Derating Storage Range Thermal Impedance (2) MIN 700 VDC TYP 400 pF MIN MAX MIN MAX TYP -40 85 -55 105 20 °C °C/Watt TYP TYP 800,000 1.0 / 28 HRS oz / gm 1.08 (27.43) 4 Mechanical tolerances unless otherwise noted: X.XX dimensions: ±0.040 inches X.XXX dimensions: ±0.010 inches General Specifications (1) All Models 2 Pin 1 2 3 4 Function +INPUT -INPUT +OUT -OUT A °C General MTBF (Calculated) Unit Weight Chassis Mounting Kits CM2A1 NOTES O D C 11 E R WE -ON E (2) All parameters measured at Tc=25°C, nominal input voltage and full rated load unless otherwise noted. Refer to the DC/DC Technical Reference Section for the definition of terms, measurement circuits and other information. The case Thermal Impedance is specified as the case temperature rise over ambient per package dissipated P (1) E R T I F I 0.48 (12.19) 5 12 15 5 12 15 1 0.000 27 27 27 60 60 60 0.000 0.200 (5.08) 0.500 (12.70) 0.64 (16.3) 0.3 (7.62) 9 9 9 20 20 20 DFA6U12S5 DFA6U12S12 DFA6U12S15 DFA6U48S5 DFA6U48S12 DFA6U48S15 3 0.800 (20.32) Max 0.300 (7.62) Output mA 0.000 Min Output VDC 0.66 (16.8) Input Range VDC (4) Model SIDE VIEW 0.040 (1.02) DIA 4 PLACES ® DFA6 SERIES – SINGLE SERIES Input Parameters (1) DFA6U12S5 Model Voltage Range Reflected Ripple (2) Input Current Full Load No Load Efficiency Switching Frequency Maximum Input Overvoltage 100ms Maximum 12V Models 48V Models Turn-on Time, 1% Output Error MIN MAX TYP TYP TYP TYP TYP TYP DFA6U12S12 DFA6U12S15 DFA6U48S5 9 27 1.8 0.93 507 6 82 DFA6U48S12 DFA6U48S15 20 60 0.85 0.44 600 12 83 VDC APP Arms 130 5 80 154 6 82 125 MAX mA % kHz VDC 34 72 TYP Units 6 ms Output Parameters (1) DFA6U12S5 Model Output Voltage Output Voltage Accuracy Rated Load Range Load Regulation 25% - 100% of Rated Load Line Regulation Vin = Min to Max VDC Short Term Stability (3) Input Ripple Rejection (4) Noise, Peak - Peak (2) RMS Noise Temperature Coefficient DFA6U48S5 DFA6U12S12 (3) (4) DFA6U48S15 Units MIN TYP MAX MIN MAX 15 14.90 15.00 15.10 0.0 0.4 TYP MAX 0.1 0.3 0.2 0.4 0.2 0.4 % TYP MAX TYP TYP TYP TYP TYP MAX 0.02 0.2 0.2 0.8 % 0.2 0.8 < 0.05 > 40 50 8 50 150 VDC VDC A %/24Hrs dB mVPP mVrms ppm/°C Continuous, Current Limit Protection DFA6 SERIES APPLICATION NOTES: NOTES (2) DFA6U12S15 12 11.90 12.00 12.10 0.0 0.5 Short Circuit Protection +OUT to -OUT (1) DFA6U48S12 5 4.95 5.00 5.05 0.0 1.0 All parameters measured at Tc=25°C, nominal input voltage and full rated load unless otherwise noted. Refer to the DC/DC Technical Reference Section for the definition of terms, measurement circuits and other information. Noise is measured per DC/DC Technical Reference Section. Measurement bandwidth is 0-20 MHz for peak-peak measurements, 10 kHz to 1 MHz for RMS measurements. Output noise is measured with a 1µf / 35V Tantalum capacitor, 1 inch from the output pins to simulate standard PCB decoupling capacitance. Reflected Ripple is measured with the appropriate input capacitor, and into a 10 µH source impedance. See application notes for input capacitor requirements. Short term stability is specified after a 30 minute warmup at full load, constant line and recording the drift over a 24 hour period. The input ripple rejection is specified for DC to 120 Hz ripple with a modulation amplitude of 1% of Vin. External Capacitance Requirements No external capacitance is required for operation of the DFC6 Series. To meet the reflected ripple requirements of the converter, an input impedance of less than 0.35 Ohms from DC to 250KHz is required. If a capacitive input source is farther than 1” from the converter, an additional capacitor may be required at the input pins for proper operation. External output capacitance is not required for operation, however it is recommended that 1mF to 10mF of tantalum and 0.001 to 0.1mF ceramic capacitance be selected for reduced system noise. Additional output capacitance may be added for increased filtering, but should not exceed 400mF. Negative Outputs A negative output voltage may be obtained by connecting the +OUT to circuit ground and connecting -OUT as the negative output. 12 (800) 678-9445 • FAX: (805) 388-0476 DFA6 SERIES – SINGLE SERIES DFA6 SERIES BLOCK DIAGRAM OUTPUT POWER DERATING ISOLATION TRANSFORMER 6 3 + OUTPUT + INPUT – INPUT 1 4 CURRENT MODE PWM 2 5 POWER OUTPUT + - OUT + 4 3 – ISO AMP 2 LOW TC BANDGAP REFERENCE 60 70 80 90 AMBIENT TEMPERATURE 50 100 Typical Performance: (Tc=25°C, Vin=Nom VDC, Rated Load) Data for 12 Volt Input Models 12 VOLT INPUT CURRENT Vs. LINE INPUT VOLTAGE 12 VOLT EFFICIENCY Vs. LOAD LINE = 12VDC 75 70 65 LINE = 27VDC 60 55 50 85 100% LOAD 0.75 EFFICIENCY (%) LINE = 9VDC INPUT CURRENT (AMPS) EFFICIENCY (%) 80 12 VOLT EFFICIENCY Vs. LINE INPUT VOLTAGE 1.00 85 100% LOAD 0.50 50% LOAD 0.25 0.00 45 0 10 20 30 40 50 60 70 80 50% LOAD 75 70 0 90 100 80 5 10 15 20 25 30 5 10 20 15 LINE INPUT (VOLTS) LOAD (%) 25 30 LINE INPUT (VOLTS) Data for 48 Volt Input Models LINE = 48VDC 75 70 65 LINE = 60VDC 60 55 50 45 0.5 90 0.4 85 EFFICIENCY (%) EFFICIENCY (%) INPUT CURRENT (AMPS) LINE = 20VDC 80 100% LOAD 0.3 0.2 50% LOAD 10 20 30 40 50 60 LOAD (%) 70 80 90 100 A 100% LOAD 80 50% LOAD 75 70 0.1 0.0 40 0 48 VOLT EFFICIENCY Vs. LINE INPUT VOLTAGE 48 VOLT INPUT CURRENT Vs. LINE INPUT VOLTAGE 48 VOLT EFFICIENCY Vs. LOAD 90 85 0 10 20 30 40 LINE INPUT (VOLTS) 13 50 60 65 20 30 40 LINE INPUT (VOLTS) 50 60