BCP Models www.murata-ps.com Dual Output, Mixed Voltage, Isolated 5V & 3.3 V, "Half-Brick" 75 W DC/DC Converters OBSOLETE PRODUCT Last time buy: 04 January 2013 FEATURES PRODUCT OVERVIEW Independent 5V and 3.3V outputs As your new, mixed-logic (5V and 3.3V) design evolves and your current requirements change, your new DC/DC converter will not. Murata Power Solutions' BCP-5/15-3.3/15-D24 (18-36V input) and BCP-5/15-3.3/15-D48 (36-75V input) are fully isolated DC/DC converters providing both 5V and 3.3V outputs. Housed in standard "half-brick" packages (2.3" x 2.4" x 0.525"), the BCP’s can support any combination of 5V and 3.3V loading up to a combined total of 15 Amps. Both outputs are fully isolated (1500Vdc) and independently line (±0.2%) and load (±0.5% and ±0.6%) regulated. Both BCP models feature input pi filters, input undervoltage and overvoltage shutdown, input reverse-polarity protection, output overvoltage Each output fully regulated No minimum load requirements Up to 15 Amps per output 75 Watts total output power Standard "half-brick" package UL1950, EN60950-1 and VDE safety approvals (BASIC insulation) Fully isolated, 1500Vdc guaranteed 18-36V or 36-75V input ranges CE mark available (75V-input models) Input under and overvoltage shutdown protection, current limiting, and thermal shutdown. Each has an on/off control function, and the two output voltages can be trimmed independently. BCP Model DC/DC’s deliver low noise (50mVp-p), high efficiency (87%) and are fully specified for –40 to +100°C operation. Utilization of metal baseplate technology with threaded inserts permits easy heat-sink attachment and/or pcb mounting. These devices meet IEC950, UL1950, EN60950-1 and VDE safety standards, including BASIC insulation requirements. CB reports are available on request. "D48" models are CE marked (meet the requirements of LVD). Selected models are available with RoHS-6 hazardous substance compliance. Continuous short-circuit protection Thermal shutdown SIMPLIFIED SCHEMATIC +5V OUTPUT (7) +INPUT (4) SWITCH CONTROL 5V RETURN (6) +3.3V OUTPUT (10) –INPUT (1) 3.3V RETURN (9) MAG AMP CONTROLLER ON/OFF CONTROL (3) PWM CONTROLLER For full details go to www.murata-ps.com/rohs UV & OV COMPARATORS OPTO ISOLATION REFERENCE & ERROR AMP REFERENCE & ERROR AMP 3.3V TRIM (8) 5V TRIM (5) Typical topology is shown www.murata-ps.com/support MDC_BCP_75W.B06 Page 1 of 14 BCP Models Dual Output, Mixed Voltage, Isolated 5V & 3.3 V, "Half-Brick" 75 W DC/DC Converters PERFORMANCE SPECIFICATIONS AND ORDERING GUIDE Output Model Family BCP-5/15-3.3/15-D24P-C BCP-5/15-3.3/15-D48N-C VOUT (V) IOUT (A) 5 R/N (mVp-p) Input Regulation (Max.) Typ. Max. Line Load 15 50 100 ±0.2% ±0.5% 3.3 15 50 100 ±0.2% ±0.6% 5 15 50 100 ±0.2% ±0.5% 3.3 15 50 100 ±0.2% ±0.6% Typical at TA = +25°C under nominal line voltage and balanced "full-load" (5V @7.5A, 3.3V @ 7.5A) conditions unless otherwise noted. Ripple/Noise (R/N) measured over a 20MHz bandwidth. All models are specified with 22µF, low-ESR, input capacitor and 10µF tantalum in parallel with 1µF ceramic output capacitors. No load to 100% load, other output at no-load. VIN Nom. (V) Range (V) IIN (mA) Min. Typ. Package (Case/ Pinout) 24 18-36 215/3720 84% 87.2% C19, P29 48 36-75 125/1860 84% 88% C19, P29 Efficiency Nominal line voltage, no-load/5V at full-load condition. Current from either output at maximum value, or both outputs to a combined total of 15 A. 5V at full-load condition. Please refer to the Part Number Structure for additional options when ordering. PART NUMBER STRUCTURE BCP - 5 / 15 - 3.3 / 15 - D24 N H LX - T - C Dual Output/ Standard Half-Brick V1 Nominal Output Voltage: 5V I1 Maximum Output Current: 15A RoHS Hazardous Substance Compliance Special Trim Versions: BCP-5/15-3.3/15-D48 only (Quantity order only) V2 Nominal Output Voltage: 3.3V I2 Maximum Output Current: 15A Optional Functions: See also last page Input Voltage Range: D24 = 18-36 Volts (24V nominal) D48 = 36-75 Volts (48V nominal) Optional Functions—Refer to last page for additional options: Blank On/Off Control function (positive polarity) pin 3 N On/Off Control function (negative polarity) pin 3 L1 Pin length: 0.110 in. (2.79mm) ±0.010, quantity order L2 Pin length: 0.145 in. (3.68mm) ±0.010, quantity order -Y RoHS-5 Hazardous substance compliance, with lead -C RoHS-6 Hazardous substance compliance, no lead -H Conformal Coating (special order): Blank = no coating, standard H = coating added, special order Note: Some model number combinations may not be available. Contact Murata Power Solutions. www.murata-ps.com/support MDC_BCP_75W.B06 Page 2 of 14 BCP Models Dual Output, Mixed Voltage, Isolated 5V & 3.3 V, "Half-Brick" 75 W DC/DC Converters MECHANICAL SPECIFICATIONS Optional Heat Sink (Part Number HS-CPLP2) 2.30 (58.4) 3.50 (88.9) METAL BASEPLATE 2.00 (50.8) 0.75 (19.1) 0.20 (5.1) 0.545 (13.84) MAX. 0.525 (13.34) TYP. PLASTIC SHELL 0.040 ±0.002 DIA. (1.016 ±0.051) 0.20 MIN (5.1) 0.20 (5.1) 1.900 (48.3) 1.900 (48.3) 2.30 (58.4) 10 1 9 2 8 2.000 1.400 (50.80) (35.56) 1.000 (25.40) 1.600 1.300 (40.64) 1.000 (33.02) (25.40) 7 3 0.400 (10.16) 6 4 (4) THREADED INSERTS #M3 THD THRU 0.300 (7.62) 0.140 THRU AND COUNTERSINK 90° TO 0.26 (4 PLACES) 2.40 (61.0) 0.600 (15.24) 0.47 (11.9) 0.16 (4.1) 5 2.48 (63.0) 0.200 (5.08) 0.30 (7.62) BOTTOM VIEW 0.20 (5.08) Optional Heat Sink (Part Number HS-CP) 0.50 (12.70) TYP. 051 (12.95) MAX. 2.30 (58.4) 0.10 (2.5) 0.20 (5.1) 1.900 (48.3) Pin MATERIAL: BLACK ANODIZED ALUMINUM INPUT/OUTPUT CONNECTIONS Function Pin Function 1 -Input 6 5V Return 2 Case (Baseplate) 7 +5V Output 3 On/Off Control 8 3.3V Trim 4 +Input 9 3.3V Return 5 5V Trim 10 +3.3V Output Standard pin length is shown. Please refer to the Part Number Structure for special order pin lengths. 2.00 (50.8) TOP VIEW 0.147 DIA. (3.734) (4 PLACES) 0.20 (5.1) 2.40 (61.0) MATERIAL: BLACK ANODIZED ALUMINUM 4 MOUNTING SCREWS AND 0.009 (0.229) THICK THERMAL PAD INCLUDED Dimensions are in inches (mm) shown for ref. only. Third Angle Projection Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 2˚ Components are shown for reference only. www.murata-ps.com/support MDC_BCP_75W.B06 Page 3 of 14 BCP Models Dual Output, Mixed Voltage, Isolated 5V & 3.3 V, "Half-Brick" 75 W DC/DC Converters Performance/Functional Specifications Typical @ TA = +25°C under nominal line voltage, balanced "full-load" conditions, unless noted. Input Input Voltage Range: D24 Models D48 Models Dynamic Characteristics 18-36 Volts (24V nominal) 36-75 Volts (48V nominal) Dynamic Load Response: 5V (50-100% load step to 1% VOUT) 3.3V (50-100% load step to 1% VOUT) 450μsec maximum 450μsec maximum Overvoltage Shutdown: D24 Models D48 Models 37.5-40.5 Volts (39V typical) 78.8-87.0 Volts (83V typical) Start-Up Time: VIN to VOUT On/Off to VOUT 30msec maximum 20msec maximum Start-Up Threshold: D24 Models D48 Models Switching Frequency 350kHz (±35kHz) 15.5-18 Volts (16.5V typical) 33.5-36 Volts (34.4V typical) Undervoltage Shutdown: D24 Models D48 Models Bellcore, ground fixed, controlled 1.49M hours (case @ 50°C) 1.72M hours (case @ 50°C) Operating Temperature (Ambient): Case to Ambient, No Heatsink (See Derating Curves) 6.8°C/Watt –40 to +85°C with derating 5.02 Amps maximum 2.51 Amps maximum Case Temperature: Maximum Allowable For Thermal Shutdown +100°C +100°C minimum, +110°C maximum 17mA typical Storage Temperature –40 to +120°C 53mArms, 150mAp-p maximum Dimensions 2.3"x2.4" x 0.525" (58.4x61x13.3mm) Pi (0.47pF - 4.7μH - 3μF) Case (Baseplate) Connection Pin 2 Case Material Diallyl phthalate, UL94V-0 rated 14-16 Volts (15.3V typical) 30.5-33.5 Volts (31.8V typical) Input Current: Normal Operating Conditions Minimum Input Voltage: D24 Models D48 Models Standby Mode: Off, OV, UV, Thermal Shutdown See Ordering Guide Input Reflected Ripple Current: Source Impedance <0.1 22μF Low-ESR Capacitor Environmental MTBF D24 Models D48 Models Physical Input Filter Type Reverse-Polarity Protection: D24 Models D48 Models 1 minute duration, 6A maximum 1 minute duration, 4A maximum On/Off Control: (Pin 3) D24 & D48 Models On = open or 2.0 - +VIN, IIN = 50μA max. Off = 0-0.6V, IIN = 1mA max. On = 0-0.6V, IIN = 1mA max. Off = open or 2.0 - +VIN, IIN = 50μA max. D24N & D48N" Models Output VOUT Accuracy 5V Output 3.3V Output ±2% maximum ±2% maximum Minimum Loading Per Specification No load Ripple/Noise (20MHz BW) See Ordering Guide Line/Load Regulation See Ordering Guide Efficiency See Ordering Guide and Efficiency Curves Trim Range ±10% independent Isolation Voltage: Input-to-Output Input-to-Case Output-to-Case 1500Vdc minimum 1000Vdc minimum 1000Vdc minimum Isolation Capacitance 470pF Baseplate Aluminum Pin Material Gold plate over copper alloy Weight 4.2 ounces (118 grams) Primary to Secondary Insulation Level Basic Models are specified at "full load" (5V & 3.3V @ 7.5A), with an external 22µF, low-ESR, input capacitor and 10µF tantalum in parallel with 1µF ceramic output capacitors. See Technical Notes for details. Devices may be ordered with opposite polarity (pin 3 open = off). See Part Number Suffixes and Technical Notes for additional information. Output noise may be further reduced with the installation of additional external output capacitors. See Technical Notes. These signals must be referenced to the input return pin (–VIN). Demonstrated MTBF available on request. Absolute Maximum Ratings Input Voltage: Continuous: D24 Models D48 Models Transient (100msec): D24 Models D48 Models Input Reverse-Polarity Protection 40.5 Volts 87 Volts 50 Volts 100 Volts Input Current must be limited. 1 minute duration. Fusing recommended. 6 Amps 4 Amps Isolation Resistance 100M Current Limit Inception: 5V @ 98% VOUT (3.3V no-load) 3.3V @ 98% VOUT (5V no-load) 16-20 Amps 16-20 Amps Short Circuit Current: Constant current 25A, indefinite Output Overvoltage Protection 3.3V Outputs 5V Outputs Temperature Coefficient ±0.02% per °C Output Current Overvoltage Protection: 5V Output 3.3V Output Magnetic feedback, latching 6.8 volts 4.5Volts Current limited. Devices can withstand an indefinite output short circuit. Storage Temperature –40 to +120°C Lead Temperature (Soldering, 10 sec.) +300°C D24 Models D48 Models 3.8 Volts, latching 6.2 Volts, latching These are stress ratings. Exposure of devices to 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, nor recommended. www.murata-ps.com/support MDC_BCP_75W.B06 Page 4 of 14 BCP Models Dual Output, Mixed Voltage, Isolated 5V & 3.3 V, "Half-Brick" 75 W DC/DC Converters TECHNICAL NOTES 5V & 3.3V Outputs/Returns The BCP Series outputs (pins 7 & 10) and returns (pins 6 & 9) are isolated from the +VIN and –VIN inputs (pins 4 & 1) via a transformer and opto-coupled transistors. The +5V Return (pin 6) and +3.3V Return (pin 9) are connected internal to the DC/DC converter. Though the returns are common within the DC/DC converter, the regulating control loop for each output is sensed directly at its respective output and return pins. In order to maintain optimum regulation if ground plane is not used, it is critical that PC board layouts also return each output to its corresponding return pin. Filtering and Noise Reduction All BCP DC/DC Converters achieve their rated ripple and noise specifications using the external input and output capacitors specified in the Performance/ Functional Specifications table. In critical applications, input/output noise may be further reduced by installing additional external I/O caps. Input capacitors should be selected for bulk capacitance, low ESR and high rms-ripple-current ratings. Output capacitors should be selected for low ESR and appropriate frequency response. All caps should have appropriate voltage ratings and be mounted as close to the converters as possible. The most effective combination of external I/O capacitors will be a function of your particular load and layout conditions. Our Applications Engineers will be pleased to recommend potential solutions and can discuss the possibility of our modifying a device’s internal filtering to meet your specific requirements. Contact our Applications Engineering Group for additional details. Input Fusing Certain applications and/or safety agencies may require the installation of fuses at the inputs of power conversion components. Fuses should also be used if the possibility of sustained, non-current-limited, input-voltage polarity reversals exists. For BCP DC/DC Converters, you should use fast-blow type fuses with values no greater than the following. Fuse Value VIN Range "D24" Models 6 Amps "D48" Models 4 Amps Fuses should be installed in the +Input line. Input Overvoltage/Undervoltage Shutdown and Start-Up Threshold Under normal start-up conditions, devices will not begin to regulate until the ramping-up input voltage exceeds the Start-Up Threshold Voltage (35V for "D48" models). Once operating, devices will not turn off until the input voltage drops below the Undervoltage Shutdown limit (32V for "D48" models). Subsequent re-start will not occur until the input is brought back up to the Start-Up Threshold. This built-in hysteresis prevents any unstable on/off situations from occurring at a single voltage. Input voltages exceeding the input overvoltage shutdown specification listed in the Performance/Functional Specifications will cause the device to shutdown. A built-in hysteresis (2V typical for "D24" models, 4V typical for "D48" models) will not allow the converter to restart until the input voltage is sufficiently reduced. Start-Up Time The VIN to VOUT start-up time is the interval between the time at which a ramping input voltage crosses the turn-on threshold point and the fully-loaded output voltage enters and remains within its specified accuracy band. Actual measured times will vary with input source impedance, external input capacitance, and the slew rate and final value of the input voltage as it appears to the converter. The On/Off to VOUT start-up time assumes the converter has its nominal input voltage applied but is turned off via the On/Off Control. The specification defines the interval between the time at which the converter is turned on and the fully loaded output voltage enters and remains within its specified accuracy band. On/Off Control (Standard feature) The On/Off Control (pin 3) may be used for remote on/off operation. As shown in Figure 1A, the control pin is referenced to the –Input (pin 1) and will be pulled to a high state internally. The standard BCP converter (no suffix) is designed so that it is enabled when the control pin is left open and disabled when the control pin is pulled low (to less than +0.6V relative to –Input). Dynamic control of the on/off function is best accomplished with a mechanical relay or an open-collector/open-drain drive circuit (optically isolated if appropriate). The drive circuit should be able to sink approximately 1mA for logic low. The on/off control function is designed such that the converter can be disabled (pin 3 pulled low for no-suffix models) while input power is ramping up and then "released" once the input has stabilized. For BCP converters configured with the negative-polarity option on the On/Off Control pin ("N" suffix added to part number), operation is opposite to that described above. The converter is disabled when the On/Off Control pin is left open and enabled when pulled low. 4 3.3V +INPUT 4 +INPUT 100k 21k 3 3 ON/OFF CONTROL ON/OFF CONTROL 1 1 –INPUT Figure 1A. No Suffix –INPUT Figure 1B. "N" Suffix www.murata-ps.com/support MDC_BCP_75W.B06 Page 5 of 14 BCP Models Dual Output, Mixed Voltage, Isolated 5V & 3.3 V, "Half-Brick" 75 W DC/DC Converters Output Overvoltage Protection Each voltage output of the BCP Series converter is independently monitored via an auxiliary winding in the output inductor. If the output voltage should rise to a level which could be damaging to the load circuitry (see Performance/Functional Specifications for limits), the overvoltage circuitry will power down the PWM controller and latch off the DC/DC converter. The device must now be restarted by powering cycling VIN. Current Limiting When output current demands exceed the maximum output current rating by 107% to 133%, the DC/DC converter will go into a current limiting mode. In this condition the output voltage decreases proportionately as the output current increases, thereby maintaining a somewhat constant power dissipation—referred to as Power Limiting (see Figure 2). As the load approaches a short circuit, the output current will continue to increase until it reaches the rated Short Circuit Current limit. Heat Sinks for BCP Series MPS offers two standard heat sinks that can be mounted to the half-brick package to extend the converter's operating temperature range. Along with the standard 2.3" x 2.4" x 0.5" (HS-CP) heat sink, DATEL has designed a low-profile heat sink for height-restricted applications. This new heat sink (HS-CPLP2) is designed with radiant fins that extend 0.51" beyond either side of the 2.4" dimension of the BCP package. The convenience of this design is that the finned extensions protrude only 0.31" below the top surface of the DC/DC converter, allowing components with a profile height less than 0.215" to be mounted on the pc board below the heat sink. Therefore, while the surface area of the lowprofile heat sink measures 2.3" x 3.5", pcb real estate is unaffected. For optimum thermal performance in a natural convection application, the low-profile heat sink should be mounted with the fins vertically oriented. Both models are shipped with 0.009" sellf-adhesive thermal pad and mounting screws. BCP-5/15-3.3/15-D24, D48 Current Limiting Characteristics (Nominal VIN) 6.00 5.00 5V Output 6 3.00 5 ˚C WATT 4.00 4 2.00 3.3V Output 1.00 26 25 24 23.5 22.6 22.4 21.9 20.9 20.3 19.8 19.3 18.8 18.3 17.8 17.2 16.7 16.2 15.7 15.2 0 Output Current, IOUT (Amps) Figure 2. Current Limiting Characteristics Short Circuit Condition As described under "Current Limiting," when the BCP Series DC/DC converter output is subjected to a short circuit condition, the output current will remain at the Short Circuit Current limit. In this state there is negligible power dissipated in the load. Therefore, most of the input power is dissipated within the converter, causing the internal temperature to increase. If this condition persists, Thermal Shutdown will activate and shutdown the DC/DC converter. When the internal temperature is sufficiently decreased, the converter will self-start. THERMAL RESISTANCE Output Voltage VOUT (Volts) Input Reverse-Polarity Protection Upon applying a reverse-polarity voltage to the DC/DC converter, an internal diode will be forward biased and draw excessive current from the power source. Therefore, it is required that the input current be limited be either an appropriately rated input fuse or a current limited power source. HS-CPLP2 3 HS-CP 2 1 0 0 100 200 300 400 500 600 700 AIR VELOCITY (FT./MIN.) HS-CP and HS-CPLP2 Heat Sink Performance Vs. Air Flow (@ 10.5 Watts Power Dissipation) Thermal Shutdown The BCP Series is equipped with Thermal Shutdown circuitry. If the internal temperature of the DC/DC converter rises above the designed operating temperature, a precision temperature sensor will power down the unit. When the internal temperature decreases below the threshold of the temperature sensor the unit will self-start. www.murata-ps.com/support MDC_BCP_75W.B06 Page 6 of 14 BCP Models Output Trimming Both the 5V and 3.3V outputs of the BCP Series can be independently trimmed via a trimpot (Figure 3A) or a single fixed resistor as shown (Figures 3B & 3C). The trimpot can be used to determine the value of a single fixed resistor. A single fixed resistor can increase or decrease the output voltage depending on its connection. Fixed resistors should be metal-film types with absolute TCR’s less than 100ppm/°C to ensure stability. +3.3V OUTPUT 3.3V TRIM 1 20kΩ 5-22 TURNS 8 +5V OUTPUT +INPUT 5V TRIM 5V RETURN +3.3V LOAD Table 1 shows the typical fixed Trim Resistor values for output voltage changes of 0 through 10%. Trim adjustment greater than 10% can have an adverse affect on the converter’s performance and is not recommended. 3.3V Trim Down 3.3V Trim Up 5V Trim Down 5V Trim Up 0% – – – – 1% 47.81k 27.93k 189.75k 61.68k 2% 22.32k 12.78k 91.06k 28.34k 3% 13.82k 7.73k 58.17k 17.23k 4% 9.57k 5.21k 41.72k 11.68k 9 5% 7.02k 3.69k 31.85k 8.34k 7 6% 5.320k 2.68k 25.27k 6.12k 7% 4.10k 1.96k 20.57k 4.53k 8% 3.19k 1.42k 17.05k 3.34k 9% 2.48k 1.00k 14.31k 2.42k 10% 1.92k 0.66k 12.12k 1.68k –INPUT 3.3V RETURN 4 10 Dual Output, Mixed Voltage, Isolated 5V & 3.3 V, "Half-Brick" 75 W DC/DC Converters 20kΩ 5-22 TURNS 5 +5V LOAD 6 Table 1. Percentage of Output Voltage Change vs Trim Resistor Value (Ohms) Figure 3A. Trim Connections Using a Trimpot A resistor connected from the Trim Pin (pin 5 for 5V trim, pin 8 for 3.3V trim) to the appropriate Return (pin 6 for 5V trim, pin 9 for 3.3V trim) will increase the output voltage. The following equations mathematically depict: Output Voltage for a given Trim Resistor Trim Resistor for a given Output Voltage 5 Volt Trim Up +3.3V OUTPUT 3.3V TRIM 1 +5V OUTPUT +INPUT 5V TRIM 5V RETURN 1 0.30RTUP (kW) + 1.5 VO = 5.0 + 8 –INPUT 3.3V RETURN 4 10 9 +3.3V TRIM UP +3.3V LOAD VO = 1.25 0.38 + 1 +5V LOAD VO = 3.30 + VO = 1.23 1.23 + 1 RT UP(kW) + 2.37 +INPUT 9 +3.3V TRIM DOWN 5V TRIM 5 5V RETURN +3.3V LOAD RTUP (k7) = 7 6 +5V TRIM DOWN +5V LOAD Figure 3C. Decrease Output Voltage Trim Connections Using a Fixed Resistor +1 RT DOWN(kW) = RT DOWN(kW)+ 2.37 (5.76 – V O) x 3.3 VO – 5 3.3 Volt Trim Up 8 +5V OUTPUT RT UP(kW) = 1 VO – 3.3 –2.37 1 1 5 Volt Trim Up 10 3.3V TRIM 4 –0.38 (0.8VO) – 1 2.07 VO –1 1.23 –1.23 –2.37 For Model BCP-5/15-3.3/15-D48-T only (special order only) RTUP (k7) = 3.3V RETURN –4.99 1.14 3.3 Volt Trim Down A single resistor connected from the Trim Pin (pin 5 for 5V trim, pin 8 for 3.3V trim) to its appropriate +Output (pin 7 for 5V trim, pin 10 for 3.3V trim) will decrease the output voltage. –INPUT 1 RT DOWN(kW) = 3.3 Volt Trim Up +5V TRIM UP 2.07 1 +1 RT DOWN(kW) + 4.99 5 Figure 3B. Increase Output Voltage Trim Connections Using a Fixed Resistor +3.3V OUTPUT –4.99 5 Volt Trim Down 1.14 7 6 1 (0.3VO) – 1.50 RTUP(kW) = (5.825 – VO) x 0.33 VO – 3.3 5 Volt Trim Down RTDOWN (k7) = (VO – 4.42) x 4.3 5 – VO 3.3 Volt Trim Down RTDOWN (k7) = (VO – 2.89) x 0.66 3.3 – VO Note: Resistor values are in k. Accuracy of adjustment is subject to tolerances of resistor values and factory-adjusted output accuracy. VO = desired output voltage. Case Connection BCP DC/DC's do not have their metal baseplate connected to one of the input pins. The "uncommitted" baseplate is connected to pin 2 which, depending upon your system configuration, should be connected to either +Input (pin 4), –Input (pin 1), Output Returns (pins 6 & 9), or earth ground. www.murata-ps.com/support MDC_BCP_75W.B06 Page 7 of 14 BCP Models Dual Output, Mixed Voltage, Isolated 5V & 3.3 V, "Half-Brick" 75 W DC/DC Converters D24 Model Typical Performance Curves D48 Model Output Ripple and Noise (PARD) (VIN = 48V, [email protected], 3.3V @ 7.5A, external 10µF || 1µF output capacitors.) Output Ripple and Noise (PARD) (VIN = 24V, [email protected], 3.3V @ 7.5A, external 10µF || 1µF output capacitors.) 3.3V Output Ripple/Noise 20mV/div 3.3V Output Ripple/Noise 20mV/div 5V Output Ripple/Noise 20mV/div 5V Output Ripple/Noise 20mV/div 1µsec/div 1µsec/div 5V Output Full-Load to Half-Load Transient Response 5V Output Full-Load to Half-Load Transient Response (VIN = 48V, 3.3V@ 0A, external 10µF || 1µF output capacitors.) (VIN = 24V, 3.3V@ 0A, external 10µF || 1µF output capacitors.) 5V Output 100mV/div 5V Output 100mV/div 15A 15A Output Current 5A/div Output Current 5A/div 7.5A 7.5A 100µsec/div 100µsec/div 5V Output Half-Load to Full-Load Transient Response 5V Output Half-Load to Full-Load Transient Response (VIN = 48V, 3.3V@ 0A, external 10µF || 1µF output capacitors.) (VIN = 24V, 3.3V@ 0A, external 10µF || 1µF output capacitors.) 5V Output 100mV/div 5V Output 100mV/div 15A 15A Output Current 5A/div Output Current 5A/div 7.5A 100µsec/div 7.5A 100µsec/div www.murata-ps.com/support MDC_BCP_75W.B06 Page 8 of 14 BCP Models Dual Output, Mixed Voltage, Isolated 5V & 3.3 V, Typical Performance Curves "Half-Brick" 75 W DC/DC Converters D24 Model D48 Model 3.3V Output Full-Load to Half-Load Transient Response 3.3V Output Full-Load to Half-Load Transient Response (VIN = 24V, 5V@ 0A, external 10µF || 1µF output capacitors.) (VIN = 48V, 5V@ 0A, external 10µF || 1µF output capacitors.) 3.3V Output 100mV/div 3.3V Output 100mV/div 15A Output Current 5A/div 15A Output Current 5A/div 7.5A 7.5A 100µsec/div 100µsec/div 3.3V Output Half-Load to Full-Load Transient Response 3.3V Output Half-Load to Full-Load Transient Response (VIN = 24V, 5V@ 0A, external 10µF || 1µF output capacitors.) (VIN = 48V, 5V@ 0A, external 10µF || 1µF output capacitors.) 3.3V Output 200mV/div 3.3V Output 200mV/div 15A 15A Output Current 5A/div Output Current 5A/div 7.5A 7.5A 100µsec/div 100µsec/div Input Ripple Current Input Ripple Current (VIN = 24V, 5V @ 15A, 3.3V@ 0A, external 22µF low-ESR input capacitor.) (VIN = 48V, 5V @ 15A, 3.3V@ 0A, external 22µF low-ESR input capacitor.) 50mA/div 50mA/div 1µsec/div 1µsec/div www.murata-ps.com/support MDC_BCP_75W.B06 Page 9 of 14 BCP Models Dual Output, Mixed Voltage, Isolated 5V & 3.3 V, Typical Performance Curves "Half-Brick" 75 W DC/DC Converters D24 Model D48 Model Input Ripple Current Input Ripple Current (VIN = 24V, 5V @ 0A, 3.3V @ 15A, external 22µF low-ESR input capacitor.) (VIN = 48V, 5V @ 0A, 3.3V @ 15A, external 22µF low-ESR input capacitor.) 50mA/div 50mA/div 1µsec/div 1µsec/div Start-Up from Remote On/Off Control Start-Up from Remote On/Off Control (VIN = 24V, 5V@ 7.5A, 3.3V @ 7.5A, external 10µF || 1µF output capacitors.) (VIN = 48V, 5V@ 7.5A, 3.3V @ 7.5A, external 10µF || 1µF output capacitors.) Remote On/Off (Pin 3) 2V/div Remote On/Off (Pin 3) 2V/div 3.3V Output 2V/div 3.3V Output 2V/div 5V Output 2V/div 5V Output 2V/div 4msec/div 4msec/div Start-Up from VIN Start-Up from VIN (VIN = 24V, 5V@ 7.5A, 3.3V @ 7.5A, external 10µF || 1µF output capacitors.) VIN 10V/div (VIN = 48V, 5V@ 7.5A, 3.3V @ 7.5A, external 10µF || 1µF output capacitors.) VIN 20V/div 3.3V Output 2V/div 3.3V Output 2V/div 5V Output 2V/div 5V Output 2V/div 4msec/div 4msec/div www.murata-ps.com/support MDC_BCP_75W.B06 Page 10 of 14 BCP Models Dual Output, Mixed Voltage, Isolated 5V & 3.3 V, "Half-Brick" 75 W DC/DC Converters Typical Performance Curves D24 Model D48 Model Output Power vs. Ambient Temperature (Without heat sink, 5V Output, 3.3V @ 0A.) 80 80 70 70 60 60 Output Power (Watts) Output Power (Watts) Output Power vs. Ambient Temperature (Without heat sink, 5V Output, 3.3V @ 0A.) 50 40 Natural Convection Cooling 30 150 Linear Feet Per Minute 20 50 40 Natural Convection Cooling 30 150 Linear Feet Per Minute 20 300 Linear Feet Per Minute 10 300 Linear Feet Per Minute 10 0 –40 –10 0 10 20 30 40 50 60 70 80 90 0 –40 100 –10 0 10 Ambient Temperature (°C) 70 70 60 60 Output Power (Watts) Output Power (Watts) 80 50 40 Natural Convection Cooling 150 Linear Feet Per Minute 50 60 70 80 90 100 50 40 Natural Convection Cooling 30 150 Linear Feet Per Minute 20 300 Linear Feet Per Minute 300 Linear Feet Per Minute 10 10 0 –40 0 35 40 45 50 55 60 65 70 75 80 85 90 95 0 –40 100 0 35 40 45 Output Power vs. Ambient Temperature (Without heat sink, 3.3V Output, 5V @ 0A.) 55 60 65 70 75 80 85 90 95 100 Output Power vs. Ambient Temperature (Without heat sink, 3.3V Output, 5V @ 0A.) 50 Output Power (Watts) 50 40 30 Natural Convection Cooling 20 150 Linear Feet Per Minute 10 0 –40 50 Ambient Temperature (°C) Ambient Temperature (°C) Output Power (Watts) 40 Output Power vs. Ambient Temperature (With HS-CP heat sink, 5V Output, 3.3V @ 0A.) 80 20 30 Ambient Temperature (°C) Output Power vs. Ambient Temperature (With HS-CP heat sink, 5V Output, 3.3V @ 0A.) 30 20 300 Linear Feet Per Minute –10 0 10 20 30 40 50 60 Ambient Temperature (°C) 70 80 90 100 40 30 Natural Convection Cooling 20 150 Linear Feet Per Minute 10 0 –40 300 Linear Feet Per Minute –10 0 10 20 30 40 50 60 70 80 90 100 Ambient Temperature (°C) www.murata-ps.com/support MDC_BCP_75W.B06 Page 11 of 14 BCP Models Dual Output, Mixed Voltage, Isolated 5V & 3.3 V, "Half-Brick" 75 W DC/DC Converters Typical Performance Curves D24 Model D48 Model Output Power vs. Ambient Temperature (With HS-CP heat sink, 3.3V Output, 5V @ 0A.) Output Power vs. Ambient Temperature (With HS-CP heat sink, 3.3V Output, 5V @ 0A.) 50 Output Power (Watts) Output Power (Watts) 50 40 30 Natural Convection Cooling 20 150 Linear Feet Per Minute 10 300 Linear Feet Per Minute 0 –40 0 35 40 45 50 55 60 65 70 75 80 85 90 95 40 30 Natural Convection Cooling 20 150 Linear Feet Per Minute 10 300 Linear Feet Per Minute 0 –40 100 0 35 40 45 50 Ambient Temperature (°C) 60 65 90 88 88 86 86 84 84 VIN = 30V Efficiency (%) VIN = 24V 80 VIN = 18V 78 75 80 85 90 95 100 5V Efficiency vs. Load (+3.3V Output @ 0 Amps) 90 82 70 Ambient Temperature (°C) 5V Efficiency vs. Load (+3.3V Output @ 0 Amps.) Efficiency (%) 55 76 74 VIN = 75V VIN = 60V 82 80 VIN = 48V 78 76 74 72 VIN = 36V 72 VIN = 36V 70 70 68 1.875 3.75 5.625 7.5 9.375 11.25 13.125 68 1.875 15 3.75 +5V Output Current (Amps) 5.625 7.5 9.375 11.25 13.125 15 13.125 15 +5V Output Current (Amps) 3.3V Efficiency vs. Load (+5V Output @ 0 Amps.) 3.3V Efficiency vs. Load (+5V Output @ 0 Amps.) 75.0 78 72.5 76 74 70.0 72 VIN = 18V Efficiency (%) Efficiency (%) 67.5 65.0 VIN = 24V 62.5 60.0 VIN = 30V 57.5 70 VIN = 60V 68 VIN = 48V 66 64 VIN = 36V 62 60 55.0 58 VIN = 36V 52.5 50.0 1.875 VIN = 75V 56 3.75 5.625 7.5 9.375 11.25 +3.3V Output Current (Amps) 13.125 15 54 1.875 3.75 5.625 7.5 9.375 11.25 +3.3V Output Current (Amps) www.murata-ps.com/support MDC_BCP_75W.B06 Page 12 of 14 BCP Models Dual Output, Mixed Voltage, Isolated 5V & 3.3 V, "Half-Brick" 75 W DC/DC Converters Typical Performance Curves D24 Model D48 Model Overall Efficiency vs. Line and Load 90 90 88 88 86 86 84 84 Efficiency (%) Efficiency (%) Overall Efficiency vs. Line and Load 82 +3.3V @ 0A and +5V @15A +3.3V @ 3.75A and +5V @11.25A +3.3V @ 7.5A and +5V @7.5A +3.3V @ 15A and +5V @0A 80 78 82 78 76 76 74 74 72 72 70 +3.3V @ 0A and +5V @15A +3.3V @ 3.75A and +5V @11.25A +3.3V @ 7.5A and +5V @7.5A +3.3V @ 15A and +5V @0A 80 70 36 40.4 44.7 49 53.3 57.7 62 66.3 70.7 75 36 40.4 Input Voltage (Volts) 44.7 49 53.3 57.7 62 66.3 70.7 75 Input Voltage (Volts) Output Ripple and Noise (PARD) vs. Input Voltage (One output @ 15A, other output @ 0A, PARD measured on loaded output, 20MHz bandwidth.) Output Ripple and Noise (PARD) vs. Input Voltage (One output @ 15A, other output @ 0A, PARD measured on loaded output, 20MHz bandwidth.) 70 60 Output PARD Voltage (mVp-p) Output PARD Voltage (mVp-p) 55 60 PARD 3.3V Output 50 PARD 5V Output 40 Ripple 3.3V Output 30 Ripple 5V Output 20 PARD 3.3V Output 50 45 40 35 PARD 5V Output Ripple 3.3V Output 30 25 20 15 10 18 20.57 23.14 25.71 28.29 Input Voltage (Volts) 30.86 33.43 36 Ripple 5V Output 10 35 40.71 46.43 52.14 57.86 63.57 69.29 75 Input Voltage (Volts) www.murata-ps.com/support MDC_BCP_75W.B06 Page 13 of 14 BCP Models Dual Output, Mixed Voltage, Isolated 5V & 3.3 V, "Half-Brick" 75 W DC/DC Converters Options and Adaptations Optional Functions The BCP 75W DC/DC Dual Half-Bricks offer various electrical and mechanical options. Per the Ordering Guide on page 2, the trailing input voltage range (D24 or D48) in each part number pertains to the base part number. Partnumber suffixes are added after the "input range," indicating the selection of standard options. The resulting part number is a "standard product" and is available to any customer desiring that particular combination of options, as described below. Suffix Description Blank On/Off Control function with positive polarity on pin 3 and independent trim function on either output (5V trim on pin 5 and 3.3V trim on pin 8). The pin length remains at 0.2 inches (5.08 mm). N On/Off Control function with negative polarity on pin 3. L1 Trim the pin length to 0.110 ±0.010 inches (2.79 ±0.25mm). This option requires a 100-piece minimum order quantity. L2 Trim the pin length to 0.145 ±0.010 inches (3.68 ±0.25mm). This option requires a 100-piece minimum order quantity. -Y -H RoHS-5 hazardous substance compliance with lead exception Conformal Coating (special order): Blank = no coating, standard H = coating added, special order -T Special trim versions (quantity order only) -C RoHS-6 hazardous substance full compliance, no lead. Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED Adaptations There are various additional configurations available on BCP 75W DC/DC Dual Half-Bricks. Because designating each with a standard part-number suffix is not always feasable, MPS assigns a 5-digit "adaptation code" after the part-number suffixes. Once a configuration has been requested by a customer and created by MPS, the resulting product is available to any customer as a "standard" off-the-shelf product. Contact MPS directly if you are interested in your own set of options/adaptations. Our policy for minimum order quantities may apply. Consequently, the following products are offered for sale: BCP-5/15-3.3/15-D48-30752 BCP-5/15-3.3/15-D48-30752-Y (RoHS-5) Standard product, 48VIN, 5V/15A and 3.3V/15A Outputs with positive On/Off logic and modified VOUT Trim functions (pin 5 and 8 positions) to be compatible with Power-One's HBD-series. Adapted low profile packaging of 0.5 inches (12.7 mm) and with trimmed pin length to 0.15 inches (3.8 mm). RoHS-5 compliance refers to the exclusion of the six hazardous substances in the RoHS specification with the excepion of lead. MPS' RoHS-5 products use all the conforming RoHS materials, however our solders are reduced lead. BCP-5/15-3.3/15-D48-T special trim version (quantity order only). BCP-5/15-3.3/15-D48THL2-Y Positive On/Off polarity, special trim, conformal coating added, 3.68mm pin length and RoHS-5 hazardous substance compliance (with lead). 06/02/08 This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: http://www.murata-ps.com/requirements/ 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. © 2012 Murata Power Solutions, Inc. www.murata-ps.com/support MDC_BCP_75W.B06 Page 14 of 14