BWR Models www.murata-ps.com Miniature 5 Watt DC-DC Converters Typical units FEATURES PRODUCT OVERVIEW The migration to distributed power is accelerating. Although their overall size is 50-75% smaller than Small size, 1 x 1 x 0.45 The critical need for accurate voltages, tight regu- many similarly rated power modules, these 1 Full 5 Watts output power lation and rapid transient response is propelling x 1 BWR Models are exact, drop-in, pin-for-pin No external components required the move to power processing at thepoint-of- replacements for many standard 2 x 1 and 2 Drop-in replacements for many standard, us with low-power DC-DC converters physically x 2 , 5 Watt modules. They achieve their small 2 x 1 DC-DCs located right at their loads. size and low cost by exploiting a novel feedback approach that does not depend upon traditional Wide input voltage ranges: MPSs miniature, full featured, 5 Watt BWR Models 18-36V or 36-72V optocoupler techniques. were speci cally designed for todays demand- Standard output voltages: ing distributed power architectures in aerospace, All models are 5-side shielded and have a non- 5, 12, 15 Volts marine, telecom and computer applications. The conductive baseplate that permits pc-card runs converters small size (1 x 1 x 0.45 ), to be placed beneath the package. Units are Guaranteed ef ciencies to 80% full 5 Watt output capability and low cost give assembled using Fully regulated and isolated system architects unprecedented design and high-speed automated SMT techniques and are (1000Vdc guaranteed) layout exibility. fully encapsulated with thermally Output overvoltage protection and 3 conductive potting compound. Every unit is electri- Occupying less than 0.5in total volume, these current limiting cally tested before and after extremely compact, fully regulated and isolated 25 to +95oC operating temperature encapsulation, 100% burned-in under full load, (1000Vdc) modules are available with 5, 12 or hi-pot tested, and nal-electrical tested prior to Shielded cases (5 sides) 15 Volt outputs. Input voltage ranges are either shipment. Every unit meets MPSs traditional high 18-36 Volts D24 models) or 36-72 Volts D48 UL1950, CSA 22.2 No. 234, and IEC950 standards for quality and long-term reliability. models). Modi cations and customs for OEMs * +VIN (1) +V OUT (3) PWM COMMON (4) VOUT (6) VIN (2) *D24 models only For full details go to Figure 1. Simpli ed Schematic Typical topology is shown. www.murata-ps.com/rohs www.murata-ps.com/support MDC BWR 5W.D01 Page 1 of 5BWR Models Miniature 5 Watt DC-DC Converters PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE Output Input Ef ciency Package R/N (mVp-p) Regulation (Max.) Full Load VOUT IOUT VIN Nom. Range IIN (Case/ Model (Volts) (mA, Max.) Typ. Max. Line Load (Volts) (Volts) (mA) Min. Typ. Pinout) BWR-5/500-D24-C 5 500 100 150 2% 2% 24 18-36 25/282 75% 78% C7, P4 BWR-5/500-D48-C 5 500 100 120 2% 2% 48 36-72 25/141 75% 78% C7, P4 BWR-12/210-D24-C 12 210 100 150 2% 2% 24 18-36 25/264 80% 82% C7, P4 BWR-12/210-D48-C 12 210 100 150 2% 2% 48 36-72 25/133 80% 82% C7, P4 BWR-15/165-D24-C 15 165 100 150 2% 2% 24 18-36 25/260 80% 83% C7, P4 BWR-15/165-D48-C 15 165 100 150 2% 2% 48 36-72 25/130 80% 82% C7, P4 Typical at TA = +25C under nominal line voltage and full-load conditions unless otherwise noted. Ripple/Noise (R/N) measured over a 20MHz bandwidth. Balanced loads, 20% to 100% load. Nominal line voltage, no-load/full-load conditions. See part number structure below. PART NUMBER STRUCTURE MECHANICAL SPECIFICATIONS Case C7 B WR - 15 / 165 - D24 - C 1.00 (25.40) Output Con guration: RoHS-6 Compliance* METAL CASE B = Bipolar 0.45 (11.43) Input Voltage Range: Wide Range Input D24 = 18-36 Volts (24V nominal) INSULATED BASE D48 = 36-72 Volts (48V nominal) 0.040 0.002 DIA. Nominal Output Voltages: 0.20 MIN (1.016 0.051) (5.08) Maximum Output Current 0.800 0.10 5, 12 or 15 Volts (20.32) (2.54) in mA from each output 0.100 3 Contact Murata Power Solutions for availability. (2.54) 0.400 (10.16) 1 0.800 1.00 4 (20.32) (25.40) 2 5 TEMPERATURE DERATING 0.200 6 (5.08) BOTTOM VIEW 0.200 0.10 5 (5.08) (2.54) DIMENSIONS ARE IN INCHES (MM) 4.5 4 3.5 3 I/O Connections 2.5 Pin Function P4 Notes: 2 1 +Input 2 Input ForD24 models, the case 1.5 is connected to pin 2 (VIN). 3 +Output 4 Common 1 ForD48 models, the case 5 No Pin is connected to pin 1 (+VIN). 0.5 6 Output 0 25 0 35 40 45 50 55 60 65 7 0 75 80 85 90 95 Ambient Temperature (C) www.murata-ps.com/support MDC BWR 5W.D01 Page 2 of 5 Output Power (Watts)