Product Data Sheet 5 WATTS REGULATED DC/DC CONVERTERS DC/DC CONVERTERS PWR1546A FEATURES 1mVp-p MAXIMUM OUTPUT NOISE 5W RATED OUTPUT POWER SHORT-CIRCUIT PROTECTION SIX-SIDED SHIELDING INTERNAL INPUT AND OUTPUT FILTERING FULLY REGULATED APPLICATIONS HIGH RESOLUTION DATA ACQUISTION PRECISION TEST EQUIPMENT HIGH GAIN AMPLIFIERS PRECISION INSTRUMENTATION DESCRIPTION The PWR1546A has a maximum of 1mVp-p output noise. This unit incorporates input and output filtering along with an internal shield, giving full six-sided shielding that keeps unwanted radiated noise from your circuit. No external parts are required to meet the 1mVp-p maximum guaranteed output noise. The PWR1546A is a miniature DC/DC converter providing dual isolated ±15VDC outputs from a single +5VDC input. Each output will supply full-rated current over the entire specification range. Each output is regulated and is protected against all shorts. The isolation barrier is guaranteed to be 750VDC. Surface-mounted components and thermal encapsulant allow superior reliability and excellent thermal dissipation. The calculated MTTF (per MIL-HDBK-217 Rev. E, CircuitStress Analysis Method) is in excess of 100 years at 25°C. SIMPLIFIED CIRCUIT DIAGRAM PWR1546A 10/98 REV D Page 1 COMMON SPECIFICATIONS Specifications typical at TA = +25°C, rated input voltage, rated output current unless otherwise noted. PARAMETER CONDITIONS INPUT Rated Voltage Voltage Range Current MIN TYP MAX 5.0 4.5 Reflected Ripple Current ISOLATION Rated Voltage Test Voltage Resistance Capacitance Leakage Current ILOAD = 0 ILOAD = Rated Output BW = DC to 10MHz 5.5 80 1650 18 750 750 60 Hz, 10 seconds 10 110 VISO = 240VAC, 60HZ 15 OUTPUT Rated Voltage Voltage Setpoint Accuracy Voltage Balance Temperature Coefficient Rated Current Transient Recovery Time REGULATION Line Load OUTPUT NOISE Ripple and Noise BW = DC to 10MHz 0.6 Circuit Stress Method, TA=+25°C 60 50 50 890 GENERAL Efficiency Package Weight Switching Frequency MTTFper MIL-HDBK-217,RevE. ±15 UNITS VDC VDC mA mA mAp-p VDC Vpk GΩ pF µArms To 0.1% of Final Value ±0.01 ±167 10 VDC % % %/°C mA ms 4.5VDC to 5.5VDC 0mA to ±167mA ±0.02 0.02 % % Rated Load, Nominal VIN TEMPERATURE Specification Operating Storage ±1 ±0.5 –25 –40 –55 +25 1.0 mVp-p % g kHz kHr +85 +100 +125 °C °C °C NOTE: Other input and output voltages may be available upon request. Please consult factory. MECHANICAL TOP VIEW SIDE VIEW NOTES: All dimensions are in inches (millimeters). GRID: 0.100 inches (2.54 millimeters) Pin Placement Tolerance: ±0.015 Marked with: specific model ordered, date code, job code. 0.900" (22.86) 1.00" (25.4) 0.400" (10.16) 0.200" (5.08) 0.400" (10.16) PWR1546A 0.600" (15.24) MATERIAL: Units are encapsulated in a low thermal resistance molding compound which has excellent chemical resistance, wide operating temperature range, and good electrical properties under high humidity environments. The encapsulant and outer shell of the unit have UL94V-0 ratings. Lead material is brass with a solder plated surface to allow ease of solderability. 0.800" (20.32) BOTTOM VIEW Page 2 PWR1546A 10/98 REV D ABSOLUTE MAXIMUM RATINGS Output Short-Circuit Duration ................................................... Continuous Internal Power Dissipation ..................................................................... 4W Lead Temperature (soldering, 10 seconds max) ............................ +300°C ORDERING INFORMATION PWR 1546A /H Device Family PWR indicates DC/DC converter Model Number Screening Option TYPICAL PERFORMANCE CURVES TA = +25°C, VIN = 5VDC, ILOAD = ±167mA unless otherwise noted. PWR1546A 10/98 REV D Page 3 ENGINEERING NOTES Power Electronics Division, United States 3400 E Britannia Drive, Tucson, Arizona 85706 Tel: 800.547.2537 Fax: 520.770.9369 C&D Technologies, (NCL) Milton Keynes MK14 5BU UK Tel: +44 (0)1908 615232 Fax: +44 (0)1908 617545 Any data, prices, descriptions or specifications presented herein are subject to revision by C&D Technologies, Inc. without notice. While such information is believed to be accurate as indicated herein, C&D Technologies, Inc. makes no warranty and hereby disclaims all warranties, express or implied, with regard to the accuracy or completeness of such information. Further, because the product(s) featured herein may be used under conditions beyond its control, C&D Technologies, Inc. hereby disclaims all warranties, either express or implied, concerning the fitness or suitability of such product(s) for any particular use or in any specific application or arising from any course of dealing or usage of trade. The user is solely responsible for determining the suitability of the product(s) featured herein for user’s intended purpose and in user’s specific application. C&D Technologies, Inc. does not warrant or recommend that any of its products be used in any life support or aviation or aerospace applications. Page 4 PWR1546A 10/98 REV D