Data Sheet March 27, 2008 JBW030-Series Power Module: dc-dc Converters 36-75 Vdc Input; 3.3 Vdc and 5 Vdc Outputs; 30 W Features n The JBW030-Series Power Modules use advanced, surfacemount technology and deliver high-quality, compact, dc-dc conversion at an economical price. Applications Small size: 61.0 mm x 57.9 mm x 12.7 mm (2.40 in. x 2.28 in. x 0.50 in.) n Low output noise n Constant frequency n Industry-standard pinout n Metal case n Case ground pin n 2:1 input voltage range n Overcurrent protection n Output overvoltage protection n Remote on/off n Remote sense n Distributed power architectures n Adjustable output voltage: 80% to 110% of VO, nom n Communications equipment n n Workstations / Computer equipment n Options n n Heat sinks available for extended operation n Choice of remote on/off logic configuration n n UL* 60950 Recognized, CSA† C22.2 No. 6095000 Certified, and EN 60950 (VDE0805):2001-12 Licensed CE mark meets 73/23/EEC and 93/68/EEC directives‡ Within FCC Class A radiated limits Short pins: 2.79 mm ± 0.25 mm (0.110 in. ± 0.010 in.) Short pins: 3.68 mm ± 0.25 mm (0.145 in. ± 0.010 in.) Description The JBW030-Series Power Modules are dc-dc converters that operate over an input voltage range of 36 Vdc to 75 Vdc and provide precisely regulated outputs. The outputs are isolated from the inputs, allowing versatile polarity configurations and grounding connections. The modules have maximum power ratings of up to 30 W at a typical full-load efficiency of up to 82% (5 Vout). These power modules feature remote on/off, remote sense, and output voltage adjustment, (80% to 110% of the nominal output voltage). The modules are PC board-mountable, encapsulated in metal cases, and are rated to full load at 100 °C case temperature. No external filtering is required. * UL is a registered trademark of Underwriters Laboratories, Inc. † CSA is a registered trademark of Canadian Standards Association. ‡ This product is intended for integration into end-use equipment. All the required procedures for CE marking of end-use equipment should be followed. (The CE mark is placed on selected products.) JBW030-Series Power Module: dc-dc Converters 36-75 Vdc Input; 3.3 Vdc and 5 Vdc Outputs; 30 W Data Sheet March 27, 2008 Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability. Parameter Symbol Min Max Unit Input Voltage Continuous VI — 80 Vdc Operating Case Temperature (See Thermal Considerations section.) TC –40 100 °C Storage Temperature Tstg –40 110 °C I/O Isolation Voltage: Continuous Transient — — — — 500 1500 Vdc Vdc Electrical Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. Table 1. Input Specifications Parameter Symbol Min Typ Max Unit VI 36 48 75 Vdc II, max — — 1.6 A Inrush Transient i 2t — — 0.2 A2s Input Reflected-ripple Current, Peak-to-peak (5 Hz to 20 MHz, 12 µH source impedance; TC = 25 °C; see Figure 11 and Design Considerations section.) II — 25 — mAp-p Input Ripple Rejection (120 Hz) — — 50 — dB Operating Input Voltage Maximum Input Current (VI = 0 V to 75 V; IO = IO, max; see Figure 1.) Fusing Considerations CAUTION: This power module is not internally fused. An input line fuse must always be used. This encapsulated power module can be used in a wide variety of applications, ranging from simple stand-alone operation to an integrated part of a sophisticated power architecture. To preserve maximum flexibility, internal fusing is not included; however, to achieve maximum safety and system protection, always use an input line fuse. The safety agencies require a fast-acting fuse with a maximum rating of 5 A (see Safety Considerations section). Based on the information provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data for further information. 2 Lineage Power Data Sheet March 27, 2008 JBW030-Series Power Module: dc-dc Converters 36-75 Vdc Input; 3.3 Vdc and 5 Vdc Outputs; 30 W Electrical Specifications (continued) Table 2. Output Specifications Device Code or Code Suffix Symbol Min Typ Max Unit Output Voltage Set Point (VI = 48 V; IO = IO, max; TC = 25 °C) JBW030F JBW030A VO, set VO, set 3.25 4.95 3.3 5.0 3.35 5.05 Vdc Vdc Output Voltage (Over all operating input voltage, resistive load, and temperature conditions until end of life. See Figure 13.) JBW030F JBW030A VO VO 3.20 4.85 — — 3.40 5.15 Vdc Vdc All All JBW030F JBW030A — — — — — — — — 0.01 0.05 0.75 0.5 0.1 0.2 1.5 1.5 %VO %VO %VO %VO All All — — — — — — 20 150 mVrms mVp-p Output Current (At IO < IO, min, the modules may exceed output ripple specifications; see Figures 2 and 3.) JBW030F JBW030A IO IO 0.6 0.6 — — 6.5 6.0 A A Output Current-limit Inception (VO = 90% of VO, nom) JBW030F JBW030A IO IO — — 8.5 8.0 — — A A Output Short-circuit Current (VO = 250 mV) JBW030F JBW030A — — — — 10.0 9.5 13 12.5 A A Efficiency (VI = 48 V; IO = IO, max; TC = 25 °C; see Figures 4, 5 and 13.) JBW030F JBW030A η η 75 79 78 82 — — % % All — — 300 — kHz JBW030F JBW030A All — — — — — — 5 2 0.5 — — — %VO, set %VO, set ms JBW030F JBW030A All — — — — — — 5 2 0.5 — — — %VO, set %VO, set ms Parameter Output Regulation: Line (VI = 36 V to 75 V) Load (IO = IO, min to IO, max) Temperature (TC = –40 °C to +100 °C) Output Ripple and Noise Voltage (See Figure 12.): RMS Peak-to-peak (5 Hz to 20 MHz) Switching Frequency Dynamic Response (ΔIO/Δt = 1 A/10 µs, VI = 48 V, TC = 25 °C; see Figures 6 — 9.): Load Change from IO = 50% to 75% of IO, max: Peak Deviation Settling Time (VO < 10% peak deviation) Load Change from IO = 50% to 25% of IO, max: Peak Deviation Settling Time (VO < 10% of peak deviation) Lineage Power 3 JBW030-Series Power Module: dc-dc Converters 36-75 Vdc Input; 3.3 Vdc and 5 Vdc Outputs; 30 W Data Sheet March 27, 2008 Electrical Specifications (continued) Table 3. Isolation Specifications Parameter Min Typ Max Unit Isolation Capacitance — 2500 — pF Isolation Resistance 10 — — MΩ Typ Max General Specifications Parameter Min Calculated MTBF (IO = 80% of IO, max; TC = 40 °C) Unit 4,370,000 Weight — — hours 113 (4.0) g (oz.) Feature Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See Feature Descriptions and Design Considerations for further information. Parameter Device Code or Code Suffix Symbol Min Typ Max Unit Remote On/Off (VI = 36 V to 75 V; open collector or equivalent compatible; signal referenced to VI(–) terminal. See Figure 14 and Feature Descriptions.): JW030x1-M Negative Logic: Logic Low—Module On Logic High—Module Off JW030x-M Positive Logic: Logic Low—Module Off Logic High—Module On Module Specifications: On/Off Current—Logic Low On/Off Voltage: Logic Low Logic High (Ion/off = 0) Open Collector Switch Specifications: Leakage Current During Logic High (Von/off = 10 V) Output Low Voltage During Logic Low (Ion/off = 1 mA) Turn-on Time (@ 80% of IO, max; TA = 25 °C; VO within ±1% of steady state; see Figure 10.) Output Voltage Overshoot All Ion/off — — 1.0 mA All All Von/off Von/off –0.7 — — — 1.2 15 V V All Ion/off — — 50 µA All Von/off — — 1.2 V All — — 80 150 ms All — — 0 5 % Output Voltage Sense Range All — — — 10 %VO, nom Output Voltage Set-point Adjustment Range (See Feature Descriptions.) All — 80 — 110 %VO, nom JBW030F JBW030A VO, clamp VO, clamp 4.0 5.6 — — 5.7 7.0 V V Output Overvoltage Protection (clamp) 4 Lineage Power JBW030-Series Power Module: dc-dc Converters 36-75 Vdc Input; 3.3 Vdc and 5 Vdc Outputs; 30 W Data Sheet March 27, 2008 Characteristic Curves 3.5 OUTPUT VOLTAGE, VO (V) INPUT CURRENT, II (A) 1.2 1 0.8 IO = 6 A 0.6 0.4 IO = 3 A 0.2 3 2.5 2 VI = 36 V VI = 48 V VI = 75 V 1.5 1 0.5 IO = 0.5 A 0 0 30 35 40 45 50 55 60 INPUT VOLTAGE, VI (V) 65 70 75 0 1 2 3 4 5 6 7 8 9 10 11 OUTPUT CURRENT, IO (A) 1-0763 Figure 1. Typical Input Characteristics 1-0726 Figure 3. JBW030F Typical Output Characteristics 85 80 5 EFFICIENCY, η (%) OUTPUT VOLTAGE, VO (V) 6 4 3 VI = 36 V VI = 48 V VI = 75 V 2 75 70 65 VI = 36 V VI = 48 V VI = 75 V 60 55 1 0 50 0 0 2 4 6 8 10 0.5 1 1.5 2 2.5 3 3.5 4 4.5 OUTPUT CURRENT, IO (A) 5 5.5 6 6.5 OUTPUT CURRENT, IO (A) 1-0727 Figure 2. JBW030A Typical Output Characteristics Lineage Power 1-0760 Figure 4. JBW030F Typical Converter Efficiency vs. Output Current 5 JBW030-Series Power Module: dc-dc Converters 36-75 Vdc Input; 3.3 Vdc and 5 Vdc Outputs; 30 W Data Sheet March 27, 2008 OUTPUT VOLTAGE, VO (50 mV/div) 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 OUTPUT CURRENT, IO (2 A/div) EFFICIENCY η (%) Characteristic Curves (continued) VI = 36 V VI = 48 V VI = 75 V 0 1 2 3 4 5 6 OUTPUT CURRENT, IO (A) 1-0878 TIME, t (0.2 ms/div) 1-0880 OUTPUT CURRENT, IO (2 A/div) OUTPUT CURRENT, IO (2 A/div) TIME, t (0.2 ms/div) 1-0879 Figure 6. JBW030F Typical Output Voltage for a Step Load Change from 50% to 75% 6 Figure 7. JBW030A Typical Output Voltage for a Step Load Change from 50% to 75% OUTPUT VOLTAGE, VO (50 mV/div) OUTPUT VOLTAGE, VO (50 mV/div) Figure 5. JBW030ATypical Converter Efficiency vs. Output Current TIME, t (0.2 ms/div) 1-0881 Figure 8. JBW030F Typical Output Voltage for a Step Load Change from 50% to 25% Lineage Power JBW030-Series Power Module: dc-dc Converters 36-75 Vdc Input; 3.3 Vdc and 5 Vdc Outputs; 30 W Data Sheet March 27, 2008 Characteristic Curves (continued) Test Configurations OUTPUT VOLTAGE, VO (50 mV/div) TO OSCILLOSCOPE CURRENT PROBE LTEST V I (+) 12 µH CS 220 µF IMPEDANCE < 0.1 Ω @ 20 ˚C, 100 kHz BATTERY OUTPUT CURRENT, IO (2 A/div) VI (-) 8-489(C) Note: Input reflected-ripple current is measured with a simulated source impedance of 12 µH. Capacitor CS offsets possible battery impedance. Current is measured at the input of the module. Figure 11. Input Reflected-Ripple Test Setup TIME, t (0.2 ms/div) 1-0882 COPPER STRIP Figure 9. JBW030A Typical Output Voltage for a Step Load Change from 50% to 25% V O (+) 0.1 µF RESISTIVE LOAD SCOPE 100 8-513(C) Note: Use a 0.1 µF ceramic capacitor. Scope measurement should be made using a BNC socket. Position the load between 50 mm and 75 mm (2 in. and 3 in.) from the module. 80 40 Figure 12. Peak-to-Peak Output Noise Measurement Test Setup REMOTE ON/OFF, Von/off (5 V/div) OUTPUT VOLTAGE, VO (%VO, set) V O (–) SENSE(+) VI (+)/CASE TIME, t (10 ms/div) VO (+) IO II 8-733a Figure 10. Typical Output Voltage Start-Up when Signal Applied to Remote On/Off CONTACT AND DISTRIBUTION LOSSES LOAD SUPPLY VI(–) CONTACT RESISTANCE VO (–) SENSE(–) 8-749(C).a Note: All measurements are taken at the module terminals. When socketing, place Kelvin connections at module terminals to avoid measurement errors due to socket contact resistance. [ V O (+) – V O (–) ] I O η = ⎛⎝ -----------------------------------------------------⎞⎠ × 100 [ V I (+) – V I (–) ] II % Figure 13. Output Voltage and Efficiency Measurement Test Setup Lineage Power 7 JBW030-Series Power Module: dc-dc Converters 36-75 Vdc Input; 3.3 Vdc and 5 Vdc Outputs; 30 W Data Sheet March 27, 2008 Design Considerations Feature Descriptions Grounding Considerations Overcurrent Protection The case is not connected internally to allow the user flexibility in grounding. To provide protection in a fault (output overload) condition, the unit is equipped with internal current-limiting circuitry and can endure current limiting for an unlimited duration. At the point of current-limit inception, the unit shifts from voltage control to current control. If the output voltage is pulled very low during a severe fault, the current-limit circuit can exhibit either foldback or tailout characteristics (output current decrease or increase). The unit operates normally once the output current is brought back into its specified range. Input Source Impedance The power module should be connected to a low acimpedance input source. Highly inductive source impedances can affect the stability of the power module. A 33 µF electrolytic capacitor (ESR < 0.7 Ω at 100 kHz) mounted close to the power module helps ensure stability of the unit. (See Figure 11.) Safety Considerations For safety-agency approval of the system in which the power module is used, the power module must be installed in compliance with the spacing and separation requirements of the end-use safety agency standard, i.e., UL 60950, CSA C22.2 No. 60950-00, and EN 60950 (VDE0805):2001-12. If the input source is non-SELV (ELV or a hazardous voltage greater than 60 Vdc and less than or equal to 75 Vdc), for the module's output to be considered meeting the requirements of safety extra-low voltage (SELV), all of the following must be true: n n n n The input source is to be provided with reinforced insulation from any other hazardous voltages, including the ac mains. One VI pin and one VO pin are to be grounded or both the input and output pins are to be kept floating. The input pins of the module are not operator accessible. Another SELV reliability test is conducted on the whole system, as required by the safety agencies, on the combination of supply source and the subject module to verify that under a single fault, hazardous voltages do not appear at the module's output. Note: Do not ground either of the input pins of the module without grounding one of the output pins. This may allow a non-SELV voltage to appear between the output pins and ground. Remote On/Off Two remote on/off options are available. Positive logic remote on/off turns the module on during a logic-high voltage on the REMOTE ON/OFF pin, and off during a logic low. Negative logic remote on/off turns the module off during a logic high and on during a logic low. Negative logic, device code suffix “1,” is the factory-preferred configuration. To turn the power module on and off, the user must supply a switch to control the voltage between the on/off terminal and the VI(–) terminal (Von/off). The switch can be an open collector or equivalent (see Figure 14). A logic low is Von/off = –0.7 V to 1.2 V, during which the module is off. The maximum Ion/off during a logic low is 1 mA. The switch should maintain a logiclow voltage while sinking 1 mA. During a logic high, the maximum Von/off generated by the power module is 15 V. The maximum allowable leakage current of the switch at Von/off = 15 V is 50 µA. The module has internal capacitance to reduce noise at the ON/OFF pin. Additional capacitance is not generally needed and may degrade the start-up characteristics of the module. CAUTION: To avoid damaging the power module or external on/off circuit, the connection between the VI(–) pin and the input source must be made before or simultaneously to making a connection between the ON/OFF pin and the input source (either directly or through the external on/off circuit.) The power module has extra-low voltage (ELV) outputs when all inputs are ELV. The input to these units is to be provided with a maximum 5 A fast-acting fuse in the ungrounded lead. 8 Lineage Power JBW030-Series Power Module: dc-dc Converters 36-75 Vdc Input; 3.3 Vdc and 5 Vdc Outputs; 30 W Data Sheet March 27, 2008 Feature Descriptions (continued) Output Voltage Set-Point Adjustment (Trim) Remote On/Off (continued) VI(+) VI(-) – SENSE(+) Von/off VO(+) + Ion/off LOAD REMOTE ON/OFF VO(–) SENSE(–) 8-720(C).h Figure 14. Remote On/Off Implementation Remote Sense Remote sense minimizes the effects of distribution losses by regulating the voltage at the remote-sense connections. The voltage between the remote-sense pins and the output terminals must not exceed the output voltage sense range given in the Feature Specifications table, i.e.: [VO(+) – VO(–)] – [SENSE(+) – SENSE(–)] ≤ 0.2 V The voltage between the VO(+) and VO(–) terminals must not exceed the minimum output overvoltage shutdown voltage as indicated in the Feature Specifications table. This limit includes any increase in voltage due to remote-sense compensation and output voltage setpoint adjustment (trim). See Figure 15. If not using the remote-sense feature to regulate the output at the point of load, then connect SENSE(+) to VO(+) and SENSE(–) to VO(–) at the module. Output voltage trim allows the user to increase or decrease the output voltage set point of a module. This is accomplished by connecting an external resistor between the TRIM pin and either the SENSE(+) or SENSE(–) pins. With an external resistor between the TRIM and SENSE(–) pins (Radj-down), the output voltage set point (VO, adj) decreases (see Figure 16). The following equation determines the required external-resistor value to obtain an output voltage change of % Δ. 1 – %Δ R adj-down = ⎛ -------------------⎞ 10 kΩ ⎝ %Δ ⎠ For example, to lower the output voltage by 20%, the external resistor value must be: 1 – 0.2 R adj-down = ⎛ -----------------⎞ 10 kΩ = ⎝ 0.2 ⎠ 40.00 kΩ With an external resistor connected between the TRIM and SENSE(+) pins (Radj-up), the output voltage set point (VO, adj) increases (see Figure 17). The following equations determine the required external-resistor value to obtain an output voltage change of % Δ. JBW030A: 1 + %Δ V O, nom R adj-up = ⎛ ------------------ – 1⎞ ⎛ -------------------⎞ 10 kΩ ⎝ 2.5 ⎠ ⎝ %Δ ⎠ For example, to increase the output voltage of the JBW030A by 5%, the external resistor value must be: 1 + 0.05 5.0 R adj-up = ⎛ -------- – 1⎞ ⎛ ---------------------⎞ 10 kΩ = 210 kΩ ⎝ 2.5 ⎠ ⎝ 0.05 ⎠ JBW030F: 1 + %Δ V O, nom R adj-up = ⎛ ------------------- – 1⎞ ⎛ -------------------⎞ 10 kΩ ⎝ 1.235 ⎠ ⎝ %Δ ⎠ For example, to increase the output voltage of the JBW030F by 5%, the external resistor must be: SENSE(+) 1 + 0.05 3.3 R adj-up = ⎛ --------------- – 1⎞ ⎛ ---------------------⎞ 10 kΩ = 351.1 kΩ ⎝ 1.235 ⎠ ⎝ 0.05 ⎠ SENSE(–) SUPPLY VI(+) VO(+) VI(-) VO(–) II CONTACT RESISTANCE IO LOAD CONTACT AND DISTRIBUTION LOSSES 8-651(C).m Figure 15. Effective Circuit Configuration for Single-Module Remote-Sense Operation Lineage Power 9 JBW030-Series Power Module: dc-dc Converters 36-75 Vdc Input; 3.3 Vdc and 5 Vdc Outputs; 30 W Data Sheet March 27, 2008 Feature Descriptions (continued) VI(+) Output Voltage Set-Point Adjustment (Trim) (continued) ON/OFF VO(+) SENSE(+) Radj-up The combination of the output voltage adjustment and sense range and the output voltage given in the Feature Specifications table cannot exceed 110% of the nominal output voltage between the VO(+) and VO(–) terminals. The JBW030-Series Power Modules have a fixed current-limit set point. Therefore, as the output voltage is adjusted down, the available output power is reduced. In addition, the minimum output current is a function of the output voltage. As the output voltage is adjusted down, the minimum required output current can increase. VI (+) ON/OFF CASE VO (+) SENSE(+) RLOAD TRIM Radj-down VI (–) SENSE(–) CASE VI(–) TRIM RLOAD SENSE(–) VO(–) 8-715(C)b Figure 17. Circuit Configuration to Increase Output Voltage Output Overvoltage Protection The output overvoltage clamp consists of control circuitry, independent of the primary regulation loop, that monitors the voltage on the output terminals. The control loop of the clamp has a higher voltage set point than the primary loop (see Feature Specifications table). This provides a redundant voltage-control that reduces the risk of output overvoltage. VO(–) 8-748(C)b Figure 16. Circuit Configuration to Decrease Output Voltage 10 Lineage Power JBW030-Series Power Module: dc-dc Converters 36-75 Vdc Input; 3.3 Vdc and 5 Vdc Outputs; 30 W Data Sheet March 27, 2008 Thermal Considerations The JBW030-Series Power Modules are designed to operate in a variety of thermal environments. As with any electronic component, sufficient cooling must be provided to help ensure reliable operation. Heat-dissipating components inside the module are thermally coupled to the case to enable heat removal by conduction, convection, and radiation to the surrounding environment. The thermal data presented is based on measurements taken in a wind tunnel. The test setup shown in Figure 18 was used to collect data for Figure 21. The graphs in Figures 19 and 20 provide general guidelines for use. Actual performance can vary depending on the particular application environment. The maximum case temperature of 100 °C must not be exceeded. 12.7 (0.50) WIND TUNNEL WALL MEASURE CASE TEMPERATURE (TC) AT CENTER OF UNIT AIRFLOW CONNECTORS TO LOADS, POWER SUPPLIES, AND DATALOGGER, 6.35 (0.25) TALL 203.2 (8.00) AIRFLOW 101.6 (4.00) 76.2 (3.00) AIR VELOCITY AND AMBIENT TEMPERATURE MEASURED BELOW THE MODULE 203.2 (8.00) 19.1 (0.75) 8-1046(C) Note: Dimensions are in millimeters and (inches). Figure 18. Thermal Test Setup Basic Thermal Performance The JBW030-Series Power Modules are constructed with a specially designed, heat spreading enclosure. As a result, full-load operation in natural convection at 50 °C can be achieved without the use of an external heat sink. Higher ambient temperatures can be sustained by increasing the airflow or by adding a heat sink. As stated, this data is based on a maximum case temperature of 100 °C and measured in the test configuration shown in Figure 18. Lineage Power 11 JBW030-Series Power Module: dc-dc Converters 36-75 Vdc Input; 3.3 Vdc and 5 Vdc Outputs; 30 W Thermal Considerations (continued) Data Sheet March 27, 2008 9 To determine the necessary airflow, determine the power dissipated by the unit for the particular application. Figures 19 and 20 show typical power dissipation for these power modules over a range of output currents. With the known power dissipation and a given local ambient temperature, the appropriate airflow can be chosen from the derating curves in Figure 21. For example, if the JBW030A dissipates 6.2 W, the minimum airflow in a 80 °C environment is 1 ms–1 (200 ft./min.). POWER DISSIPATION, PD (W) 8 Forced Convection Cooling 7 6 5 2.0 ms -1(400 ft./min.) 1.0 ms -1(200 ft./min.) 0.5 ms -1(100 ft./min.) NATURAL CONVECTION 4 3 2 1 0 30 40 50 60 70 80 90 100 LOCAL AMBIENT TEMPERATURE, TA (˚C) 8-1051(C) POWER DISSIPATED, PD (W) 7 VI = 36 V VI = 48 V VI = 75 V 6 5 Figure 21. Forced Convection Power Derating with No Heat Sink; Either Orientation 4 3 Heat Sink Selection 2 1 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 OUTPUT CURRENT, IO (A) 5 5.5 6 6.5 1-0762 Figure 22 shows the case-to-ambient thermal resistance, θ (°C/W), for these modules. These curves can be used to predict which heat sink will be needed for a particular environment. For example, if the JBW030A dissipates 7 W of heat in an 80 °C environment with an airflow of 0.7 ms–1 (130 ft./min.), the minimum heat sink required can be determined as follows: Figure 19. JBW030F Power Dissipation vs. Output Current POWER DISSIPATED, PD (W) 8 7 6 VI = 75 V VI = 48 V 5 θ ≤ ( T C, max – T A ) ⁄ P D 4 where: 3 VI = 36 V 2 1 0 0 1 2 3 4 OUTPUT CURRENT, IO (A) 5 Figure 20. JBW030A Power Dissipation vs. Output Current 12 Several heat sinks are available for these modules. The case includes through-threaded mounting holes allowing attachment of heat sinks or cold plates from either side of the module. The mounting torque must not exceed 0.56 N-m (5 in./lb.). 6 1-0761 θ = module’s total thermal resistance TC, max = case temperature (See Figure 18.) TA = inlet ambient temperature (See Figure 18.) PD = power dissipation θ ≤ (100 – 80)/7 θ ≤ 2.9 °C/W From Figure 22, the 1/2 in. high heat sink or greater is required. Lineage Power JBW030-Series Power Module: dc-dc Converters 36-75 Vdc Input; 3.3 Vdc and 5 Vdc Outputs; 30 W Data Sheet March 27, 2008 Thermal Considerations (continued) Although the previous example uses 100 °C as the maximum case temperature, for extremely high reliability applications, one can use a lower temperature for TC, max. Heat Sink Selection (continued) It is important to point out that the thermal resistances shown in Figure 22 are for heat transfer from the sides and bottom of the module as well as the top side with the attached heat sink; therefore, the case-to-ambient thermal resistances shown will generally be lower than the resistance of the heat sink by itself. The data in Figure 22 was taken with a thermally conductive dry pad between the case and the heat sink to minimize contact resistance (typically 0.1 °C/W to 0.3 °C/W). CASE-TO-AMBIENT THERMAL RESISTANCE, θCA (˚C/W) 8 7 NO HEAT SINK 1/4 in. HEAT SINK 1/2 in. HEAT SINK 1 in. HEAT SINK 1 1/2 in. HEAT SINK 6 5 4 3 2 1 0 0 0.25 (50) 0.51 0.76 (100) (150) 1.02 1.27 (200) (250) 1.52 1.78 2.03 (300) (350) (400) AIR VELOCITY, ms -1(ft./min.) For a more detailed explanation of thermal energy management for this series of power modules as well as more details on available heat sinks, please request the following technical note: Thermal Energy Management for JC- and JW-Series 30 Watt Board-Mounted Power Modules (TN97-016EPS). 8-1052(C).a Figure 22. Case-to-Ambient Thermal Resistance vs. Air Velocity Curves; Either Orientation Lineage Power Layout Considerations Copper paths must not be routed beneath the power module standoffs. 13 JBW030-Series Power Module: dc-dc Converters 36-75 Vdc Input; 3.3 Vdc and 5 Vdc Outputs; 30 W Data Sheet March 27, 2008 Outline Diagram Dimensions are in millimeters and (inches). Tolerances: x.x ± 0.5 mm (0.02 in.), x.xx ± 0.25 mm (0.010 in.). Top View 57.9 (2.28) MAX Pin marking designation is shown for reference only 61.0 (2.40) MAX VI(+) VO(+) ON/ OFF + SEN TRIM CASE - SEN VO(-) VI(-) Side View 0.51 (0.020) 12.7 (0.50) MAX 1.02 (0.040) DIA SOLDER-PLATED BRASS,ALL PINS 5.1 (0.20) MIN Bottom View STANDOFF, 12.7 (0.50) MAX 4 PLACES 7.1 (0.28) MOUNTING INSERTS M3 x 0.5 THROUGH, 4 PLACES 5.1 (0.20) 7.1 (0.28) 10.16 (0.400) 50.8 (2.00) 25.40 (1.000) 35.56 (1.400) 4 5 3 6 7 2 1 4.8 (0.19) 8 48.26 (1.900) TERMINALS 10.16 (0.400) 17.78 (0.700) 25.40 (1.000) 35.56 (1.400) 9 48.3 (1.90) MOUNTING HOLES 8-716(C) 14 Lineage Power JBW030-Series Power Module: dc-dc Converters 36-75 Vdc Input; 3.3 Vdc and 5 Vdc Outputs; 30 W Data Sheet March 27, 2008 Recommended Hole Pattern Component-side footprint. Dimensions are in millimeters and (inches). 48.3 (1.90) 4.8 (0.19) 1 35.56 (1.400) 50.8 (2.00) 48.26 (1.900) TERMINALS 2 9 35.56 (1.400) 8 25.40 (1.000) 7 25.40 (1.000) 10.16 (0.400) 3 6 4 5 17.78 10.16 (0.700) (0.400) 5.1 (0.20) 12.7 (0.50) MAX MOUNTING INSERTS MODULE OUTLINE 8-716(C) Ordering Information Please contact your Lineage Power Account Manager or Field Application Engineer for pricing and availability. Table 4. Device Codes Input Voltage 48 V 48 V 48 V 48 V Output Voltage 3.3 V 3.3 V 5V 5V Output Power 21.5 W 21.5 W 30 W 30 W Remote On/ Off Logic Positive Negative Positive Negative Device Code JBW030F JBW030F1 JBW030A JBW030A1 Comcode 108966078 108975418 108966086 108970203 Table 5. Device Options Option Device Code Suffix Short pins: 3.68 mm ± 0.25 mm (0.145 in. ± 0.010 in.) Short pins: 2.79 mm ± 0.25 mm (0.110 in. ± 0.010 in.) Negative Logic On/Off 6 Lineage Power 8 1 15 JBW030-Series Power Module: dc-dc Converters 36-75 Vdc Input; 3.3 Vdc and 5 Vdc Outputs; 30 W Data Sheet March 27, 2008 Ordering Information (continued) Table 6. Device Accessories Accessory Comcode 1/4 in. transverse kit (heat sink, thermal pad, and screws) 1/4 in. longitudinal kit (heat sink, thermal pad, and screws) 1/2 in. transverse kit (heat sink, thermal pad, and screws) 1/2 in. longitudinal kit (heat sink, thermal pad, and screws) 1 in. transverse kit (heat sink, thermal pad, and screws) 1 in. longitudinal kit (heat sink, thermal pad, and screws) 1 1/2 in. transverse kit (heat sink, thermal pad, and screws) 1 1/2 in. longitudinal kit (heat sink, thermal pad, and screws) 407243989 407243997 407244706 407244714 407244722 407244730 407244748 407244755 Note: Dimensions are in millimeters and (inches). 1/4 IN. 1/4 IN. 1/2 IN. 1/2 IN. 1 IN. 1 IN. 61 (2.4) 57.9 (2.28) 1 1/2 IN. 1 1/2 IN. 57.9 (2.28) 61 (2.4) D000-c.cvs Figure 23. Longitudinal Heat Sink D000-d.cvs Figure 24. Transverse Heat Sink A sia-Pacific Head qu art ers T el: +65 6 41 6 4283 World W ide Headq u arters Lin eag e Po wer Co rp oratio n 30 00 Sk yline D riv e, Mes quite, T X 75149, U SA +1-800-526-7819 (Outs id e U .S.A .: +1- 97 2-2 84 -2626) www.line ag ep ower.co m e-m ail: tech sup port1@ lin ea gep ower.co m Eu ro pe, M id dle-East an d Afric a He ad qu arters T el: +49 8 9 6089 286 Ind ia Head qu arters T el: +91 8 0 28411633 Lineage Power reserves the right to make changes to the produc t(s) or information contained herein without notice. No liability is ass umed as a res ult of their use or applic ation. No rights under any patent acc ompany the sale of any s uc h pr oduct(s ) or information. © 2008 Lineage Power Corpor ation, (Mesquite, Texas ) All International Rights Res er ved. March 27, 2008 FDS02-038EPS (Replaces FDS02-037EPS )