BWR Series www.murata-ps.com 15-17W, Dual Output DC/DC Converters Typical units FEATURES PRODUCT OVERVIEW n Output voltages: ±5, ±12 or ±15 Volts For your mid-range power requirements, it’s hard to beat the combination of small packaging, n Input voltage ranges: low cost, proven reliability and outstanding electrical performance 10-18V, 18-36V or 36-75V offered by the 15-17W, dual-output models of MPS’s A-Series DC/DC converters. These highly effi- cient, rugged converters combine straightforward circuit topologies, the newest components, proven n Small packages, 1" x 2" x 0.48" SMT-on-pcb construction methods, and highly repeatable automatic-assembly techniques. Their n Industry-standard pinouts superior durability is substantiated by a rigorous in-house qualification program. n The input voltage ranges of the BWR 15-17 Bipolar Series (10-18V for "D12A" models, 18-36V Low cost; Highly reliable for "D24A" models and 36-75V for "D48A" models) make them excellent candidates for telecom- n Proven SMT-on-pcb construction munication system line drivers, or distributed power architectures. Their ±5, ±12 or ±15 Volt outputs n Designed to meet IEC/EN/UL60950-1 cover virtually all standard applications. safety These popular power converters are fully isolated (1500Vdc 100% tested) and display excellent line and load regulation (±0.5% max. for line and load). They are completely I/O protected (input n mark available (75V-input models) overvoltage shutdown and reverse-polarity protection, output current limiting and overvoltage pro- n 1500Vdc isolation; 100% tested tection) and contain input (pi type) and output filtering to reduce noise. n Efficiencies to 86% These extremely reliable, cost-effective power converters are housed in standard 1" x 2" x 0.48" UL94V-0 rated plastic packages. They offer industry-standard pinouts and are ideally suited n –40 to +100°C operating temperature for high-volume computer, telecom/datacom, instrumentation and ATE applications. n Thermal protection n On/Off control +INPUT +OUTPUT (1) (4) COMMON (5) –OUTPUT –INPUT (6) (2) ON/OFF OPTO PWM REFERENCE & CONTROL CONTROLLER ISOLATION ERROR AMP (OPTION) (3) Figure 1. Simplified Schematic Typical topology is shown For full details go to www.murata-ps.com/rohs www.murata-ps.com/support MDC_BWR15-17W.D01 Page 1 of 9 BWR Series 15-17W, Dual Output DC/DC Converters ➀ Performance Specifications and Ordering Guide Output Input Package R/N (mVp-p) ➁ Regulation (Max.) Efficiency VOUT IOUT VIN Nom. Range IIN➃ (Case, Root Model ➄ (Volts) (mA) (Volts) (Volts) (mA/A) Pinout) Typ. Max. Line Min. Typ. Load ➂ BWR-5/1500-D12A-C ±5 ±1500 75 100 ±0.5% ±0.5% 12 10-18 240/1.5 79% 81% C14A, P43 BWR-5/1500-D24A-C ±5 ±1500 75 100 ±0.5% ±0.5% 24 18-36 112/0.75 81% 83% C14A, P43 BWR-5/1500-D48A-C ±5 ±1500 75 100 ±0.5% ±0.5% 48 36-75 59/0.38 81% 83% C14A, P43 BWR-12/725-D12A-C ±12 ±725 75 100 ±0.5% ±0.5% 12 10-18 265/1.7 82% 83.5% C14A, P43 BWR-12/725-D24A-C ±12 ±725 75 100 ±0.5% ±0.5% 24 18-36 127/0.85 83% 85% C14A, P43 BWR-12/725-D48A-C ±12 ±725 75 100 ±0.5% ±0.5% 48 36-75 62/0.4 84% 86% C14A, P43 To Be Discontinued* BWR-15/575-D12A-C ±15 ±575 75 100 ±0.5% ±0.5% 12 10-18 266/1.7 82% 84% C14A, P43 BWR-15/575-D24A-C ±15 ±575 75 100 ±0.5% ±0.5% 24 18-36 125/0.84 84% 86% C14A, P43 BWR-15/575-D48A-C ±15 ±575 75 100 ±0.5% ±0.5% 48 36-75 65/0.41 85% 87% C14A, P43 ➀ Typical at TA = +25°C under nominal line voltage and full-load conditions unless otherwise noted. ➁ Ripple/Noise (R/N) measured over a 20MHz bandwidth. ➂ Balanced loads, 10% to 100% load step. ➃ Nominal line voltage, 10% load/100% load conditions. ➄ These are not complete model numbers. Please use the part number structure when ordering. *LAST TIME BUY: 3/31/2017. CLICK HERE FOR DISCONTINUANCE NOTICES. PART NUMBER STRUCTURE MECHANICAL SPECIFICATIONS B WR - 12 / 725 - D48 A - C 2.00 (50.80) PLASTIC CASE Output Configuration: RoHS-6 Hazardous 0.465 B = Bipolar Case C14A (11.81) Substance Compliant* Wide Range Input STANDOFF 0.015 (0.38) 0.040 ±0.002 DIA. Nominal Output Voltages: A-Series 0.20 MIN (1.016 ±0.051) ±5, ±12 or ±15 Volts (5.08) High Reliability 0.800 0.60 (15.24) (20.32) Input Voltage Range: Maximum Output Current D12 = 10-18 Volts (12V nominal) in mA from each output D24 = 18-36 Volts (24V nominal) 0.100 4 (2.54) D48 = 36-75 Volts (48V nominal) 1 5 0.800 1.00 2 (20.32) (25.40) 0.400 (10.16) 3 6 Part Number Suffixes BOTTOM VIEW 0.200 BWR 15-17 Watt DC/DC's are designed so an On/Off Control function (5.08) 0.10 with either positive polarity ("C" suffix) or negative polarity ("N" suffix) (2.54) DIMENSION ARE IN INCHES (MM) can be added to the pin 3 position. Models ordered without On/Off control (without C or N suffix) will not have pin 3 installed. No Suffix Pin 3 not installed Dimensions are in inches (mm) shown for ref. only. I/O Connections C Positive On/Off control function (pin 3) Pin Function P43 Third Angle Projection 1 +Input N Negative On/Off control function (pin 3) 2 –Input 3 On/Off Control* 4 +Output 5 Output Return * Contact Murata Power Solutions for availability. Tolerances (unless otherwise specified): 6 –Output .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) * Pin is optional Some model number combinations may not be available. Please contact Murata Angles ± 2˚ Power Solutions for more information. Components are shown for reference only. www.murata-ps.com/support MDC_BWR15-17W.D01 Page 2 of 9 BWR Series 15-17W, Dual Output DC/DC Converters Performance/Functional Specifications Dynamic Characteristics Typical @ TA = +25°C under nominal line voltage and full-load conditions, unless noted. ➀ Transient Response: (50-100% load step to 2% VOUT) 250µsec maximum Input Start-Up Time: Input Voltage Range: VIN to VOUT 35msec D12A Models 10-18 Volts (12V nominal) On/Off to VOUT 30msec D24A Models 18-36 Volts (24V nominal) Switching Frequency 300kHz (±30kHz) D48A Models 36-75 Volts (48V nominal) Environmental Overvoltage Shutdown: D12A Models 19-21 Volts MTBF Bellcore, ground fixed, fullpower D24A Models 37-40 Volts 25°C ambient, 1 million hours D48A Models 77-81 Volts Operating Temperature (ambient): Start-Up Threshold: ➂ -40 to +85°C with derated power (see derating curves) D12A Models 9.4-10 Volts Thermal Shutdown 115°C D24A Models 16.5-18 Volts Storage Temperature –40 to +120°C D48A Models 34-36 Volts Flammability UL 94V-0 Undervoltage Shutdown: ➂ D12A Models 7-8.5 Volts Physical D24A Models 15.5-17.5 Volts Dimensions 1" x 2" x 0.48" (25.4 x 50.8 x 12.19mm) D48A Models 32.5-34.5 Volts Case Material Diallyl Phthalate Input Current Pin Material Gold-plate over copper alloy Normal Operating Conditions See Ordering Guide Standby Mode (Off, OV, UV) 5mA Weight 1.19 ounces (34 grams) Input Reflected Ripple Current ➅ 10 mAp-p Primary to Secondary Insulation Level Functional Input Filter Type Pi ➀ All models are specified with no external I/O capacitors. ➁ See Technical Notes/Graphs for details. Reverse-Polarity Protection Brief duration, 5A maximum. ➂ Applying a voltage to the On/Off Control (pin 3) when no input power is applied to the On/Off Control: ➃ ➄ converter can cause permanent damage to the converter. ➃ Output noise may be further reduced with the addition of additional external output capacitors. C Models On = open or 13V- +VIN, IIN = 1mA max. See Technical Notes. Off = 0-0.8V, IIN = 1mA max. ➄ The On/Off Control is designed to be driven with open-coolector logic or the application of N Models On = 0-0.5V, IIN = 3mA max. appropriate voltage levels. Voltages may be referenced to the –Input (pin 2). Off = open or 3.5- +VIN, IIN = 1mA max. ➅ Input Ripple Current is tested/specified over a 5-20MHz bandwidth with an external 33µF input capacitor and a simulated source impedance of 220µF and 12µH. See I/O Filtering, Input Output Ripple Current and Output Noise for details. VOUT Accuracy (balanced half load) ±2.0%, maximum Minimum Load Requirement ➁ 10% Absolute Maximum Ratings Ripple/Noise (20MHz BW) ➀ ➅ See Ordering Guide Input Voltage: Line/Load Regulation See Ordering Guide Continuous: D12A Models 23 Volts Efficiency See Ordering Guide D24A Models 42 Volts Isolation Voltage 1500Vdc, minimum D48A Models 81 Volts Isolation Capacitance 550pF Transient (100msec): D12A Models 50 Volts Isolation Resistance 10MΩ D24A Models 50 Volts Current Limit Inception (@ 98% VOUT) D48A Models 100 Volts ±5V Models 1.9-2.5A On/Off Control (pin 3) Max. Voltages ±12V Models 1-1.5A Referenced to –Input (pin 2) ±15V Models 0.85-1.2A "C" Suffix +VIN (+18 Volts) Short-Circuit Current "N" Suffix +7 Volts ±5V Models 800mA maximum Input Reverse-Polarity Protection Current must be <5 Amps. Brief ±12V Models 700mA maximum duration only. Fusing recommended. ±15V Models 700mA maximum Output Current Current limited. Devices can withstand Overvoltage protection Output voltage comparator sustained output short circuits without ±5V Models 5.45-7.15 Volts damage. ±12V Models 13-15.8 Volts Case Temperature 120°C ±15V Models 16.2-19.8 Volts Storage Temperature –40 to +120°C Maximum Capacitive Loading 1000µF (per output) Lead Temperature See soldering guidelines Temperature Coefficient ±0.02% per °C These are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those listed in the Performance/Functional Specifications Table is not implied. www.murata-ps.com/support MDC_BWR15-17W.D01 Page 3 of 9 BWR Series 15-17W, Dual Output DC/DC Converters External input capacitors (CIN in Figure 2) serve primarily as energy-storage TECHNICAL NOTES elements, minimizing line voltage variations caused by transient IR drops in conductors from backplane to the DC/DC. Input caps should be selected for Input Fusing bulk capacitance (at appropriate frequencies), low ESR, and high rms-ripple- Certain applications and/or safety agencies may require the installation of fuses current ratings. The switching nature of DC/DC converters requires that dc at the inputs of power conversion components. Fuses should also be used if voltage sources have low ac impedance as highly inductive source imped- the possibility of sustained, non-current-limited, input-voltage polarity reversal ance can affect system stability. In Figure 2, CBUS and LBUS simulate a typical exists. For MPS BWR 15-17 Watt DC/DC Converters, you should use slow-blow dc voltage bus. Your specific system configuration may necessitate additional type fuses with values no greater than the following: considerations. Model Fuse Value All D12A Models 4 Amp TO CURRENT OSCILLOSCOPE BWR-5/1500-D24A 2 Amp PROBE +INPUT BWR-12/725-D24A, BWR-15/575-D24A 2.5 Amp LBUS All D48A Models 1 Amp + VIN CBUS CIN Start-Up Time – The VIN to VOUT start-up time is the interval of time where the input voltage –INPUT crosses the turn-on threshold point, and the fully loaded output voltage enters CIN = 33µF, ESR < 700mΩ @ 100kHz and remains within its specified accuracy band. Actual measured times will vary CBUS = 220µF, ESR < 100mΩ @ 100kHz LBUS = 12µH with external output capacitance and load. The BWR 15-17W Series implements Figure 2. Measuring Input Ripple Current a soft start circuit that limits the duty cycle of the PWM controller at power up, thereby limiting the Input Inrush current. In critical applications, output ripple/noise (also referred to as periodic and The On/Off Control to VOUT start-up time assumes the converter has its nominal random deviations or PARD) may be reduced below specified limits using filter- input voltage applied but is turned off via the On/Off Control pin. The specification ing techniques, the simplest of which is the installation of additional external defines the interval between the time at which the converter is turned on and the output capacitors. These output caps function as true filter elements and fully loaded output voltage enters and remains within its specified accuracy band. should be selected for bulk capacitance, low ESR and appropriate frequency Similar to the VIN to VOUT start-up, the On/Off Control to VOUT start-up time is also response. All external capacitors should have appropriate voltage ratings and governed by the internal soft start circuitry and external load capacitance. be located as close to the converter as possible. Temperature variations for all relevant parameters should also be taken carefully into consideration. The most Input Overvoltage/Undervoltage Shutdown and Start-Up Threshold effective combination of external I/O capacitors will be a function of line voltage Under normal start-up conditions, devices will not begin to regulate until the ramping-up and source impedance, as well as particular load and layout conditions. input voltage exceeds the Start-Up Threshold Voltage (35V for D48 models). Once Floating Outputs operating, devices will not turn off until the input voltage drops below the Undervoltage Shutdown limit (33.5V for D48 models). Subsequent re-start will not occur until the input is Since these are isolated DC/DC converters, their outputs are "floating," with brought back up to the Start-Up Threshold. This built in hysteresis prevents any unstable respect to the input. As such, it is possible to use +Output, –Output or Output on/off situations from occurring at a single input voltage. Return as the system ground thereby allowing the flexibility to generate a variety of output voltage combinations. Input voltages exceeding the input overvoltage shutdown specification listed in the Performance/Functional Specifications will cause the device to shutdown. A Regulation for BWR 15-17W bipolar converters is monitored between built-in hysteresis of 0.6 to 1.6 Volts for all models will not allow the converter to –Output and +Output (as opposed to Output to Return). restart until the input voltage is sufficiently reduced. Minimum Loading Requirements Input Source Impedance BWR 15-17W converters employ a classical diode-rectification design topology The converters must be driven from a low ac-impedance input source. The DC/ and require a minimum 10% loading to achieve their listed regulation specifica- DC's performance and stability can be compromised by the use of highly induc- tions and a stable operating condition. tive source impedances. The input circuit shown in Figure 2 is a practical solu- Load Regulation tion that can be used to minimize the effects of inductance in the input traces. For optimum performance, components should be mounted close to the DC/DC Regulation for the BWR 15-17W bipolar converters is monitored between converter. If the application has a high source impedance, low VIN models can –Output and +Output (as opposed to Output to Return). As such regulation will benefit of increased external input capacitance. assure that voltage between –Output and +Output pins remains within the VOUT accuracy listed in the Performance/Functional Specifications table. I/O Filtering, Input Ripple Current, and Noise Reduction All BWR 15-17W DC/DC Converters achieve their rated ripple and noise specifications without the use of external input/output capacitors. In critical applications, input/output ripple and noise may be further reduced by installing additional external I/O caps. www.murata-ps.com/support MDC_BWR15-17W.D01 Page 4 of 9 BWR Series 15-17W, Dual Output DC/DC Converters If loading from +/– Outputs to Output Return is symmetrical, the voltage at Start-Up Time Output pins with respect to Output Return will also be symmetrical. An unbal- The VIN to VOUT start-up time is the interval of time where the input voltage crosses ance in loading will consequently result in a degraded VOUT regulation accuracy the turn-on threshold point, and the fully loaded output voltage enters and remains from +/– Outputs to Output Return ( –Output to +Output regulation will still be within its specified accuracy band. Actual measured times will vary with external within specification) with a load step from minimum to maximum load and with output capacitance and load. The BWR 15-17W Series implements a soft start the other output at full load, the maximum deviation is 2.5% VOUT nominal. circuit that limits the duty cycle of the PWM controller at power up, thereby limiting the Input Inrush current. BWR-15/575-D48A Unbalanced Output Load Regulation 15.5 The On/Off Control to VOUT start-up time assumes the converter has its nominal input voltage applied but is turned off via the On/Off Control pin. The specification 15.4 defines the interval between the time at which the converter is turned on and the +15V @ 0A to 0.575A fully loaded output voltage enters and remains within its specified accuracy band. –15V @ 0.575A 15.3 Similar to the VIN to VOUT start-up, the On/Off Control to VOUT start-up time is also governed by the internal soft start circuitry and external load capacitance. 15.2 15.1 On/Off Control The input-side, remote On/Off Control function (pin 3) can be ordered to operate 15 with either polarity. Positive-polarity devices ("C" suffix) are enabled when pin –15V @ 0A to 0.575A 14.9 3 is left open (or is pulled high, +13V to VIN applied with respect to –Input, pin +15V @ 0.575A 2, see Figure 2). Positive-polarity devices are disabled when pin 3 is pulled low 14.8 (0-0.8V with respect to –Input). Negative-polarity devices are off when pin 3 is left open (or pulled high, 3.5V to VIN), and on when pin 3 is pulled low (0-0.5V). 14.7 See Figure 5.  0 10 20 30 40 50 60 70 80 90 100 Output Load Regulation (%) 1 +INPUT Figure 4. Output Voltage Accuracy vs. Imbalanced Loading Current Limiting 13V CIRCUIT 3 When output current increases to approximately 15% to 50% above the rated ON/OFF CONTROL 5V CIRCUIT output current, the DC/DC converter will go into a current limiting mode. In this condition the output voltage will decrease proportionately with increases in output current, thereby maintaining a somewhat constant power dissipa- –INPUT tion. This is commonly referred to as power limiting. Current limit inception 2 is defined as the point where the full-power output voltage falls below the specified tolerance. See Performance/Functional Specifications. If the load Figure 4. Driving the Positive Polarity On/Off Control Pin current being drawn from the converter is significant enough, the unit will go into a short circuit condition. See "Short Circuit Condition." Short Circuit Condition +INPUT 1 When a converter is in current limit mode the output voltages will drop as the output current demand increases. If the output voltage drops too low, the 3 magnetically coupled voltage used to develop primary side voltages will also ON/OFF CONTROL drop, thereby shutting down the PWM controller. Following a time-out period, the PWM will restart, causing the output voltages to begin ramping to their appropriate values. If the short-circuit condition –INPUT 2 persists, another shutdown cycle will be initiated. This on/off cycling is referred to as "hiccup" mode. The hiccup cycling reduces the average output current, thereby preventing internal temperatures from rising to excessive Figure 5. Driving the Negative Polarity On/Off Control Pin levels. The BWR 15-17W Series is capable of enduring an indefinite short circuit output condition. Dynamic control of the remote on/off function is best accomplished with a mechanical relay or an open-collector/open-drain drive circuit (optically isolated Thermal Shutdown if appropriate). The drive circuit should be able to sink appropriate current (see These BWR converters are equipped with Thermal Shutdown Circuitry. If Performance Specs) when activated and withstand appropriate voltage when environmental conditions cause the internal temperature of the DC/DC con- deactivated. verter rises above the designed operating temperature, a precision tempera- Applying an external voltage to pin 3 when no input power is applied to the ture sensor will power down the unit. When the internal temperature decreases converter can cause permanent damage to the converter. below the threshold of the temperature sensor the unit will self start. www.murata-ps.com/support MDC_BWR15-17W.D01 Page 5 of 9 +/–15VOUT BWR Series 15-17W, Dual Output DC/DC Converters Typical Performance Curves BWR-5/1500-D12A Efficiency vs. Input Line And Output Load BWR-5/1500-D12A Output Power vs. Ambient Temperature 85 (No air flow) 16 80 14 75 12 VIN = 10V 10 70 8 VIN = 10V VIN = 12V 65 6 VIN = 12V 60 4 VIN = 18V 2 55 VIN = 18V 0 –40 0 40 50 60 70 80 90 100 50 10 20 30 40 50 60 70 80 90 100 Ambient Temperature ( C) ° Output Current (%) BWR-5/1500-D24A Efficiency vs. Input Line And Output Load BWR-5/1500-D24A Output Power vs. Ambient Temperature 85 (No air flow) 16 80 14 75 12 VIN = 18V 10 70 8 VIN = 24V VIN = 18V 65 6 VIN = 36V VIN = 24V 60 4 2 55 VIN = 36V 0 –40 0 40 50 60 70 80 90 100 50 10 20 30 40 50 60 70 80 90 100 Ambient Temperature ( C) ° Output Current (%) BWR-5/1500-D48A Efficiency vs. Input Line And Output Load BWR-5/1500-D48A Output Power vs. Ambient Temperature 85 (No air flow) 16 80 14 75 12 VIN = 36V 10 70 8 VIN = 48V VIN = 36V 65 6 VIN = 75V VIN = 48V 60 4 2 55 VIN = 75V 0 –40 0 40 50 60 70 80 90 100 50 10 20 30 40 50 60 70 80 90 100 Ambient Temperature ( C) ° Output Current (%) www.murata-ps.com/support MDC_BWR15-17W.D01 Page 6 of 9 Efficiency (%) Efficiency (%) Efficiency (%) Output Power (Watts) Output Power (Watts) Output Power (Watts) BWR Series 15-17W, Dual Output DC/DC Converters Typical Performance Curves BWR-12/725-D12A Efficiency vs. Input Line And Output Load BWR-12/725-D12A OutputPowervs.AmbientTemperature 85 (No air flow) 18 80 16 75 14 12 VIN = 10V 70 10 VIN = 10V VIN = 12V 65 8 6 VIN = 12V 60 4 VIN = 18V 55 2 VIN = 18V 0 50 –40 0 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 AmbientTemperature( C) ° Output Current (%) BWR-12/725-D24A Efficiency vs. Input Line And Output Load BWR-12/725-D24A OutputPowervs.AmbientTemperature 90 (No air flow) 18 85 16 80 14 VIN = 18V 12 75 10 VIN = 24V VIN = 18V 70 8 6 VIN = 24V VIN = 36V 65 4 60 2 VIN = 36V 0 55 –40 0 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 AmbientTemperature( C) ° Output Current (%) BWR-12/725-D48A Efficiency vs. Input Line And Output Load BWR-12/725-D48A Output Power vs. Ambient Temperature 90 (Air flow from Input ot Output) 18 85 16 80 14 VIN = 36-75V No Air Flow 12 75 VIN = 36-75V 150 lfm Air Flow 10 VIN = 36V VIN = 48V No Air Flow 70 8 VIN = 48V 150 lfm Air Flow 6 VIN = 48V 65 4 60 2 VIN = 75V 0 55 –40 0 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 Ambient Temperature ( C) ° Output Current (%) www.murata-ps.com/support MDC_BWR15-17W.D01 Page 7 of 9 Efficiency (%) Efficiency (%) Efficiency (%) Output Power (Watts) OutputPower(Watts) OutputPower(Watts) BWR Series 15-17W, Dual Output DC/DC Converters Typical Performance Curves BWR-15/575-D12A Efficiency vs. Input Line And Output Load BWR-15/575-D12A Output Power vs. Ambient Temperature 85 (No air flow) 18 80 16 75 14 VIN = 10V 12 70 10 VIN = 10V VIN = 12V 65 8 6 VIN = 12V 60 VIN = 18V 4 55 2 VIN = 18V 0 50 –40 0 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 Ambient Temperature ( C) ° Output Current (%) BWR-15/575-D24A Efficiency vs. Input Line And Output Load BWR-15/575-D24A Output Power vs. Ambient Temperature 90 (No air flow) 18 85 16 80 14 VIN = 18V 12 75 10 VIN = 18V VIN = 24V 70 8 6 VIN = 24V VIN = 36V 65 4 60 2 VIN = 36V 0 –40 0 40 50 60 70 80 90 100 55 10 20 30 40 50 60 70 80 90 100 Ambient Temperature ( C) ° Output Current (%) BWR-15/575-D48A Efficiency vs. Input Line And Output Load BWR-15/575-D48A Output Power vs. Ambient Temperature 90 (No air flow) 18 85 16 80 14 12 VIN = 36V 75 10 VIN = 36V VIN = 48V 70 8 6 VIN = 48V 65 4 VIN = 75V 60 2 VIN = 75V 0 –40 0 40 50 60 70 80 90 100 55 10 20 30 40 50 60 70 80 90 100 Ambient Temperature ( C) ° Output Current (%) www.murata-ps.com/support MDC_BWR15-17W.D01 Page 8 of 9 Efficiency (%) Efficiency (%) Efficiency (%) Output Power (Watts) Output Power (Watts) Output Power (Watts) BWR Series 15-17W, Dual Output DC/DC Converters Typical Performance Curves Start-Up from VIN to VOUT Start-Up from On/Off to VOUT (VIN = 48V to Full Load) (VIN = 48V to Full Load) VIN Control 50V/div Pin 5V/div –VOUT –VOUT VOUT VOUT 5V/div 5V/div +VOUT +VOUT 10msec/div 10msec/div Adaptations Soldering Guidelines Murata Power Solutions recommends the specifications below when installing Several different additional converter configurations are available. Generally, these converters. These specifications vary depending on the solder type. Exceeding these are modifications of an existing standard product. In some cases, they these specifications may cause damage to the product. Be cautious when there is are designated with an additional 5-digit suffix on the end of the root parent high atmospheric humidity. We strongly recommend a mild pre-bake (100° C. for standard model number. The actual details of the modification are contained 30 minutes). Your production environment may differ; therefore please thoroughly in a Specification Control Drawing maintained by MPS and tracked using review these guidelines with your process engineers. this same 5-digit special number suffix. These adapted products are Wave Solder Operations for through-hole mounted products normally built in the same production facilities and to the same quality stan- (THMT) dards as catalog products. Usually, they share the same components. For Sn/Ag/Cu based solders: Once a modified product has been configured and supplied to a customer, Maximum Preheat Temperature 115° C. it may be available as a “standard” product to other customers, assuming Maximum Pot Temperature 270° C. there is no proprietary status or other restriction. There may be scheduling and minimum order requirements for such products. Contact Murata Power Maximum Solder Dwell Time 7 seconds Solutions directly if you are interested in your own set of adaptations or For Sn/Pb based solders: modifications. Maximum Preheat Temperature 105° C. Maximum Pot Temperature 250° C. Maximum Solder Dwell Time 6 seconds This product is subject to the following operating requirements Murata Power Solutions, Inc. and the Life and Safety Critical Application Sales Policy: 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Refer to: http://www.murata-ps.com/requirements/ ISO 9001 and 14001 REGISTERED Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. © 2016 Murata Power Solutions, Inc. www.murata-ps.com/support MDC_BWR15-17W.D01 Page 9 of 9