QW030A1

Data Sheet April 2002 QW/QC030-Series Power Modules: dc-dc Converters; 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs Features The QW/QC030-Series Power Modules use advanced, surfacemount technology and deliver high-quality, efficient, and compact dc-dc conversion. Applications ■ Distributed power architectures ■ Workstations ■ Computer equipment ■ Communications equipment ■ Optical transport equipment Options ■ Heat sinks available for extended operation ■ Choice of remote on/off logic configurations ■ Choice of two pin lengths ■ Small size: 36.8 mm x 57.9 mm x 12.7 mm (1.45 in. x 2.28 in. x 0.50 in.) ■ High power density ■ High efficiency: 86% typical ■ Low output noise ■ Constant frequency ■ Industry-standard pinout ■ Metal case ■ 2:1 input voltage range ■ Overvoltage and overcurrent protection ■ Remote on/off ■ Remote sense ■ Adjustable output voltage ■ ISO* 9001 and ISO 14001 Certified manufacturing facilities ■ UL† 60950 Recognized, CSA‡ C22.2 No. 60950-00 Certified, VDE § 0805 (EN60950-1) Licensed (For QW030 only) ■ CE mark meets 73/23/EEC and 93/68/EEC directives**(For QW030 only) * ISO is a registered trademark of the International Organization for Standardization. † UL is a registered trademark of Underwriters Laboratories, Inc. ‡ CSA is a registered trademark of Canadian Standards Assn. § VDE is a trademark of Verband Deutscher Elektrotechniker e.V. **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.) Description The QC/QW030-Series Power Modules are dc-dc converters that operate over an input voltage range of 18 Vdc to 36 Vdc or 36 Vdc to 7 5Vdc and provide a precisely regulated dc output. The outputs are fully isolated from the inputs, allowing versatile polarity configurations and grounding connections. The modules have maximum power ratings of 30 W at a typical full-load efficiency of up to 86%. These encapsulated modules offer a metal case for optimum thermal performance. Threaded-through holes are provided to allow easy mounting or addition of a heat sink for high-temperature applications. The standard feature set includes remote sensing, output trim, and remote on/off for convenient flexibility in distributed power applications. QW/QC030-Series Power Modules: dc-dc Converters; 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs Data Sheet April 2002 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 Input Voltage: Continuous Transient (100 ms) Operating Case Temperature (See Thermal Considerations section.) Storage Temperature I/O Isolation Voltage Device Symbol Min Max Unit QC030x QW030x QW030x AII VI VI VI, trans Tc — — — –40 50 80 100 105* Vdc Vdc V °C AII AII Tstg — –55 — 125 1500 °C Vdc * Maximum case temperature varies based on power dissipation. See power derating curves for details. Electrical Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. Table 1. Input Specifications Parameter Device Symbol Min Typ Max Unit Operating Input Voltage: QC030x QW030x All All VI VI 18 36 24 48 36 75 Vdc Vdc Maximum Input Current (VI = 0 V to 75 V; I O = I O, max): QC030x QW030x All All II II — — — — 3.5 2.2 A A Inrush Transient All i2t — — 0.2 A2s Input Reflected-ripple Current, Peak-to-peak (5 Hz to 20 MHz, 12 µH source impedance; see Test Configurations section.) All — 5 — mAp-p Input Ripple Rejection (120 Hz) All — 50 — dB — 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 normal-blow fuse with a maximum rating of 5 A (for QW030) and 10 A (for QC030) (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 Tyco Electronics Corp. QW/QC030-Series Power Modules: dc-dc Converters; 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs Data Sheet April 2002 Electrical Specifications (continued) Table 2. Output Specifications Parameter Output Voltage Set Point (VI = 48 V; IO = IO, max; TC = 25 °C) Output Voltage (Over all operating input voltage, resistive load, and temperature conditions until end of life. See Test Configurations section.) Output Regulation: Line (VI = 36 V to 75 V) Load (IO = IO, min to IO, max) Temperature (TC = –30 °C to +100 °C) Output Ripple and Noise Voltage (See Test Configurations section.): Measured across one 4.7 µF ceramic capacitor: RMS Peak-to-peak (5 Hz to 20 MHz) Measured across one 2.2 µF ceramic capacitor: RMS Peak-to-peak (5 Hz to 20 MHz) External Load Capacitance Output Current (At IO < IO, min, the modules may exceed output ripple specifications.) Output Current-limit Inception (VO = 90% of V O, set) Output Short-circuit Current (VO = 0.25 V) Tyco Electronics Corp. Device Suffix Symbol Min Typ Max Unit F A B C F A B C VO, set VO, set VO, set VO, set VO VO VO VO 3.23 4.92 11.80 14.55 3.18 4.86 11.60 14.25 3.3 5.0 12.0 15.0 3.3 5.0 12.0 15.0 3.37 5.12 12.30 15.48 3.42 5.18 12.45 15.75 Vdc Vdc Vdc Vdc Vdc Vdc Vdc Vdc A, F B, C A, F B C A, F B C — — — — — — — — — — — — — — — — 1 2 2 8 10 15 40 65 — — — — — — — — mV mV mV mV mV mV mV mV F A F A — — — — — — — — 15 10 40 30 — — — — mVrms mVrms mVp-p mVp-p B, C B C A, F B, C F A B C F A B C F A B C — — — — — IO IO IO IO IO IO IO IO IO IO IO IO — — — 0 0 0.45 0.30 0.26 0.26 — — — — — — — — 15 40 50 — — — — — — 7.5 7.0 3.7 3.3 11.5 9.5 5.5 4.5 — — — 1000 470 6.50 6.00 3.00 2.66 — — — — — — — — mVrms mVp-p mVp-p µF µF A A A A A A A A A A A A 3 QW/QC030-Series Power Modules: dc-dc Converters; 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs Data Sheet April 2002 Electrical Specifications (continued) Table 2. Output Specifications (continued) Parameter Efficiency (VI = 48 V; IO = IO, max): TA = 25 °C Switching Frequency Dynamic Response (ýIO/ýt = 1 A/10 µs, VI = 48 V, TC = 25 °C): Load Change from IO = 50% to 75% of IO, max: Peak Deviation Settling Time (VO < 10% of peak deviation) Load Change from IO = 50% to 25% of IO, max: Peak Deviation Settling Time (VO < 10% of peak deviation) Device Suffix Symbol Min Typ Max Unit F A B, C All η η η — — — — — 83 86 89 300 — — — — % % % kHz A, C, F B B, C, F A — — — — — — — — 2.0 2.5 5.0 3.0 — — — — %VO, set %VO, set ms ms A, C, F B B, C, F A — — — — — — — — 2.0 2.5 5.0 3.0 — — — — %VO, set %VO, set ms ms * Engineering estimate. Table 3. Isolation Specifications Parameter Device Min Typ Max Unit Isolation Capacitance (engineering estimate) All — 600 — pF Isolation Resistance All 10 — — MΩ Device Min Typ Max Unit Table 4. General Specifications Parameter 4 Calculated MTBF (IO = 80% of I O, max; TA = 40 °C) All Weight All 5,000,000 — — hours 75 (2.7) g (oz.) Tyco Electronics Corp. QW/QC030-Series Power Modules: dc-dc Converters; 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs Data Sheet April 2002 Feature Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See Feature Descriptions section of this data sheet for additional information. Parameter Remote On/Off Signal Interface (VI = VI, min to VI, max; open collector or equivalent compatible; signal referenced to VI(–) terminal.): Negative Logic: Device Code Suffix “1”: Logic Low—Module On Logic High—Module Off Positive Logic: If Device Code Suffix “1” Is Not Specified: 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 mA) Open Collector Switch Specifications: Leakage Current During Logic High (Von/off = 15 V) Output Low Voltage During Logic Low (Ion/off = 1 mA) Turn-on Delay and Rise Times (at 80% of IO, max; TA = 25 °C): Case 1: On/Off Input Is Set for Logic High and then Input Power Is Applied (delay from point at which VI = VI, min until VO = 10% of VO, nom). Case 2: Input Power Is Applied for at Least One Second, and Then the On/Off Input Is Set to Logic High (delay from point at which V on/off = 0.9 V until VO = 10% of VO, nom). Output Voltage Rise Time (time for VO to rise from 10% of VO, nom to 90% of VO, nom) Output Voltage Overshoot (at 80% of I O, max; TA = 25 °C) Output Voltage Adjustment (See Feature Descriptions section.): Output Voltage Remote-sense Range Output Voltage Set-point Adjustment Range (trim) Output Overvoltage Protection (clamp) Tyco Electronics Corp. Device Suffix Symbol Min Typ Max Unit 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 Tdelay — 8 — ms All Tdelay — 1 — ms All Trise — 1 — ms All — — — 5 % All A, F B, C — — — — 95 90 — — — 0.5 110 110 V %VO, nom %VO, nom F A B C VO, ovp VO, ovp VO, ovp VO, ovp 3.8 5.5 13.2 16.5 — — — — 4.9 7.0 21.0 24.0 V V V V 5 QW/QC030-Series Power Modules: dc-dc Converters; 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs Data Sheet April 2002 Feature Specifications (continued) Device Suffix Symbol Min Typ Max Unit Overtemperature Protection (VI = 75 V, see Figure 8.): IO = 6.5 A IO = 6 A IO = 3 A IO = 2.66 A F A B C Tcase Tcase Tcase Tcase — — — — 105 105 105 105 — — — — °C °C °C °C Undervoltage Lockout: QC030x QW030x All All — — — — 14 27 — — V V Parameter Test Configurations SENSE(+) VI(+) TO OSCILLOSCOPE CONTACT AND DISTRIBUTION LOSSES VO(+) IO II LOAD SUPPLY L TEST VI(+) 12 µH VI(-) BATTERY C S 220 µF ESR < 0.1 Ω @ 20 ˚C, 100 kHz CONTACT RESISTANCE 33 µF ESR < 0.7 Ω @ 100 kHz VO(-) SENSE(-) 8-749(C) VI(-) 8-203(C).l Note: Measure input reflected-ripple current with a simulated source inductance (LTEST) of 12 µH. Capacitor CS offsets possible battery impedance. Measure current as shown above. Figure 1. QC/QW030-Series Input Reflected-Ripple Test Setup 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 (–) ]I I  Figure 3. QC/QW030-Series Output Voltage and Efficiency Measurement Test Setup Design Considerations COPPER STRIP V O (+) Grounding Considerations SEE NOTE SCOPE RESISTIVE LOAD V O (–) For the QC modules, the case is internally connected to the V I(–) pin. For the QW modules, the case is internally connected to the V I(+) pin. 8-513(C).s Note: Use the capacitor(s) referenced in the Output Ripple and Noise Voltage specifications in the Output Specifications table. Scope measurement should be made using a BNC socket. Position the load between 51 mm and 76 mm (2 in. and 3 in.) from the module. Figure 2. QC/QW030-Series Peak-to-Peak Output Noise Measurement Test Setup 6 Tyco Electronics Corp. Data Sheet April 2002 QW/QC030-Series Power Modules: dc-dc Converters; 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs Design Considerations (continued) Feature Descriptions Input Source Impedance Overcurrent Protection The power module should be connected to a low ac-impedance input source. Highly inductive source impedances can affect the stability of the power module. If the input source inductance exceeds 4 µH, a 33 µF electrolytic capacitor (ESR < 0.7 Ω at 100 kHz) mounted close to the power module helps ensure stability of the unit. 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. Safety Considerations QW Modules 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., UL60950, CSA C22.2 No. 60950-00, and VDE 0805 (EN60950-1). 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: 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, device code suffix “1,” turns the module off during logic-high voltage and on during a logic low. 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 may be an open collector or equivalent (see Figure 4). A logic low is V on/off = –0.7 V to 1.2 V. The maximum Ion/off during a logic low is 1 mA. The switch should maintain a logic-low voltage while sinking 1 mA. ■ The input source is to be provided with reinforced insulation from any 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. 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 V on/off = 15 V is 50 µA. ■ The input pins of the module are not operator accessible. If not using the remote on/off feature, do one of the following: ■ 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. For positive logic, leave the ON/OFF pin open. For negative logic, short the ON/OFF pin to VI(–). VI(+) 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 pin and ground. The power module has extra-low voltage (ELV) outputs when all inputs are ELV. VI(-) Von/off + Ion/off REMOTE ON/OFF The input to the QW030 is to be provided with a maximum 5 A normal-blow fuse in the ungrounded lead. The input to the QC030 is to be provided with a maximum 10 A normal-blow fuse in the ungrounded lead. Tyco Electronics Corp. 8-758(C).a Figure 4. QC/QW030-Series Remote On/Off Implementation 7 QW/QC030-Series Power Modules: dc-dc Converters; 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs Data Sheet April 2002 Output Voltage Set-Point Adjustment (Trim) Feature Descriptions (continued) 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, e.g., on the QW030A: [VO(+) – VO(–)] –[SENSE(+) – SENSE(–)] ≤ 0.5 V The voltage between the V O(+) and VO(–) terminals must not exceed the minimum output overvoltage protection value shown 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 5. 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. The trim resistor should be positioned close to the module. If not using the trim feature, leave the TRIM pin open. With an external resistor between the TRIM and SENSE(+) pins (Radj-down), the output voltage set point (VO, adj) decreases (see Figure 6). The following equation determines the required external-resistor value to obtain a change in output voltage from VO, nom to VO, adj. The values of G, H, and L are shown in Table 5. R adj-down 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. Although the output voltage can be increased by both the remote sense and by the trim, the maximum increase for the output voltage is not the sum of both. The maximum increase is the larger of either the remote sense or the trim. Consult your Tyco Electronics’ Account Manager or Application Engineer if you need to increase the output voltage more than the above limitation. The amount of power delivered by the module is defined as the voltage at the output terminals multiplied by the output current. When using remote sense and trim, the output voltage of the module can be increased, which at the same output current would increase the power output of the module. Care should be taken to ensure that the maximum output power of the module remains at or below the maximum rated power. SENSE(+) SENSE(-) SUPPLY VI(+) VO(+) VI(-) VO(-) II CONTACT RESISTANCE IO The QC/QW030 modules have a fixed current-limit set point. As the output voltage is adjusted down, the available output power is reduced. With an external resistor connected between the TRIM and SENSE(–) pins (Radj-up), the output voltage set point (VO, adj) increases (see Figure 7). The following equation determines the required external-resistor value to obtain a change in output voltage from VO, nom to VO, adj. The values of G, H, K, and L are shown in Table 5. R adj-up GL =  ----------------------------------------- – H Ω [ ( V O, adj – L ) – K ] Table 5. Values for Trim Equations Device Suffix Vo, nom G H K L F A B C 3.3 5 12 15 5110 5110 10,000 10,000 3010 3010 3010 3010 2.06 2.5 9.5 12.5 1.24 2.5 2.5 2.5 LOAD CONTACT AND DISTRIBUTION LOSSES 8-651(C).m Figure 5. QC/QW030-Series Effective Circuit Configuration for Single-Module RemoteSense Operation 8 ( V O, adj – L ) G = --------------------------------------- – H Ω ( V O, nom – V O, adj ) The voltage between the VO(+) and VO(–) terminals must not exceed the minimum output overvoltage protection value shown 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 5. Tyco Electronics Corp. QW/QC030-Series Power Modules: dc-dc Converters; 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs Data Sheet April 2002 Feature Descriptions (continued) Output Overvoltage Protection Output Voltage Set-Point Adjustment (Trim) (continued) The output overvoltage clamp consists of control circuitry, independent of the primary regulation loop, that monitors the voltage on the output terminals. This control loop has a higher voltage set point than the primary loop (see the Feature Specifications table). In a fault condition, the overvoltage clamp ensures that the output voltage does not exceed V O, clamp, max. This provides a redundant voltage-control that reduces the risk of output overvoltage. Although the output voltage can be increased by both the remote sense and by the trim, the maximum increase for the output voltage is not the sum of both. The maximum increase is the larger of either the remote sense or the trim. Consult your Tyco Electronics’ Account Manager or Application Engineer if the output voltage needs to be increased more than the above limitation. The amount of power delivered by the module is defined as the voltage at the output terminals multiplied by the output current. When using remote sense and trim, the output voltage of the module can be increased, which at the same output current would increase the power output of the module. Care should be taken to ensure that the maximum output power of the module remains at or below the maximum rated power. VI (+) ON/OFF Overtemperature Protection These modules feature overtemperature protection to safeguard the modules against thermal damage. When the temperature exceeds the overtemperature threshold given in the feature specifications table, the module will limit the available output current in order to help protect against thermal damage. The overcurrent inception point will gradually move back to its original level as the module is cooled below the overtemperature threshold. VO (+) Input Undervoltage Lockout SENSE(+) Radj-down CASE VI (–) RLOAD TRIM SENSE(–) VO(-) 8-715(C).i At input voltages below the input undervoltage lockout limit, the module operation is disabled. The module will begin to operate at an input voltage between the undervoltage lockout limit and the minimum operating input voltage. Figure 6. QC/QW030-Series Circuit Configuration to Decrease Output Voltage VI(+) ON/OFF CASE VO(+) SENSE(+) RLOAD TRIM Radj-up VI(–) SENSE(–) VO(–) 8-748(C).f Figure 7. QC/QW030-Series Circuit Configuration to Increase Output Voltage Tyco Electronics Corp. 9 QW/QC030-Series Power Modules: dc-dc Converters; 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs Data Sheet April 2002 Thermal Considerations Heat Transfer Without Heat Sinks Introduction Increasing airflow over the module enhances the heat transfer via convection. Figures 9 and 10 show the maximum power that can be dissipated by the module without exceeding the maximum case temperature versus local ambient temperature (TA) for natural convection through 3 m/s (600 ft./min.). The power modules operate in a variety of thermal environments; however, sufficient cooling should be provided to help ensure reliable operation of the unit. Heat-dissipating components inside the unit are thermally coupled to the case. Heat is removed by conduction, convection, and radiation to the surrounding environment. Proper cooling can be verified by measuring the case temperature. The case temperature should be measured at the position indicated in Figure 8. 33 (1.30) Systems in which these power modules may be used typically generate natural convection airflow rates of 0.3 ms–1 (60 ft./min.) due to other heat-dissipating components in the system. Therefore, the natural convection condition represents airflow rates of up to 0. 3ms–1 (60 ft./min.). Use of Figure 9 is shown in the following example. Example 14 (0.55) VI(+) ON/OFF VI(-) What is the minimum airflow necessary for a QW030A operating at VI = 48 V, an output current of 3.5 A, and a maximum ambient temperature of 89 °C? VO(+) (+)SENSE TRIM (-)SENSE VO(–) Solution 8-2104(C).a Note: Top view, pin locations are for reference only. Measurements shown in millimeters and (inches). Given: VI = 48 V IO = 3.5 A TA = 89 °C Determine PD (Use Figure 12.): Figure 8. QC/QW030-Series Case Temperature Measurement Location PD = 3 W Determine airflow (v) (Use Figure 9.): Although the maximum case temperature of the power modules is 105 °C, you can limit this temperature to a lower value for extremely high reliability. v = 1.0 m/s (200 ft./min.) 7 POWER DISSIPATION, PD (W) The temperature at this location should not exceed 105 °C. The output power of the module should not exceed the rated power for the module as listed in the Ordering Information table. MAX CASE TEMP. 6 5 4 3 2 NATURAL CONVECTION 1.0 ms -1 (200 ft./min.) 2.0 ms -1 (400 ft./min.) 1 3.0 ms -1 (600 ft./min.) 0 40 50 60 70 80 90 100 110 MAX AMBIENT TEMPERATURE, TA (°C) 8-3406(F) Figure 9. QW030A, F Forced Convection Power Derating with No Heat Sink; Either Orientation 10 Tyco Electronics Corp. QW/QC030-Series Power Modules: dc-dc Converters; 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs Data Sheet April 2002 Thermal Considerations (continued) 6 POWER DISSIPATION, PD (W) 6.0 5.5 POWER DISSIPATION, PD (W) Heat Transfer Without Heat Sinks (continued) MAX CASE TEMPERATURE 5.0 4.5 4.0 3.5 3.0 2.5 NATURAL CONVECTION 1.0 ms (200 ft./min.) 2.0 ms (400 ft./min.) 3.0 ms (600 ft./min.) 5 4 3 VI = 75 V VI = 48 V VI = 36 V 2 1 0 2.0 0.3 1.3 1.5 3.3 4.3 5.3 7.3 8-9439(C) 0.5 0.0 40 6.3 OUTPUT CURRENT, IO (A) (A) 1.0 2.3 50 60 70 80 90 100 110 MAX AMBIENT TEMPERATURE, TA (˚C) Figure 12. QW030A Typical Power Dissipation vs. Output Current at TA = 25 °C 8-3366(C).a POWER DISSIPATION, PD (W) 6 5 4 6 POWER DISSIPATION, PD (W) Figure 10. QW030B, C Forced Convection Power Derating with No Heat Sink; Either Orientation 5 4 VI = 75 V VI = 48 V VI = 36 V 3 2 1 3 0 VI = 75 V VI = 48 V VI = 36 V 2 0.253 0.753 1.253 1.753 2.253 2.753 3.253 OUTPUT CURRENT, IO (A) 1 8-3376(C) 0 0.3 1.3 2.3 3.3 4.3 5.3 6.3 7.3 Figure 13. QW030B Typical Power Dissipation vs. Output Current at TA = 25 °C OUTPUT CURRENT, IO (A) 8-9439(C).a Figure 11. QW030F Typical Power Dissipation vs. Output Current at TA = 25 °C Tyco Electronics Corp. 11 QW/QC030-Series Power Modules: dc-dc Converters; 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs Thermal Considerations (continued) Heat Transfer Without Heat Sinks (continued) POWER DISSIPATION, PD (W) 6 5 These measured resistances are from 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 are generally lower than the resistance of the heat sink by itself. The module used to collect the data in the case-toambient thermal resistance curves had a thermal-conductive dry pad between the case and the heat sink to minimize contact resistance. 4 3 Custom Heat Sinks 2 VI = 75 V VI = 48 V VI = 36 V 1 0 0.27 0.77 1.27 1.77 2.27 2.77 A more detailed model can be used to determine the required thermal resistance of a heat sink to provide necessary cooling. The total module resistance can be separated into a resistance from case-to-sink (θcs) and sink-to-ambient (θsa) as shown in Figure 15. OUTPUT CURRENT, IO (A) 8-3287(C) Figure 14. QW030C Typical Power Dissipation vs. Output Current at TA = 25 °C Heat Transfer with Heat Sinks The power modules have through-threaded, M3 x 0.5 mounting holes, which enable heat sinks or cold plates to attach to the module. The mounting torque must not exceed 0.56 N-m (5 in.-lb.). For a screw attachment from the pin side, the recommended hole size on the customer’s PWB around the mounting holes is 0.130 ± 0.005 inches. The mounting torque from the pin side must not exceed 0.25 N-m (2.2 in.-lbs.). Thermal derating with heat sinks is expressed by using the overall thermal resistance of the module. Total module thermal resistance (θca) is defined as the maximum case temperature rise (∆TC, max) divided by the module power dissipation (P D): T C – T A -) C, max -------------------- = (----------------------θ ca = ∆T PD PD → TC TS θcs TA θsa 8-1304(C) Figure 15. QC/QW030-Series Resistance from Case-to-Sink and Sink-to-Ambient For a managed interface using thermal grease or foils, a value of θcs = 0.1 °C/W to 0.3 °C/W is typical. The solution for heat sink resistance is: ( T C – T A -) – θ cs θ sa = -----------------------PD This equation assumes that all dissipated power must be shed by the heat sink. Depending on the userdefined application environment, a more accurate model, including heat transfer from the sides and bottom of the module, can be used. This equation provides a conservative estimate for such instances. Layout Considerations PD The location to measure case temperature (TC) is shown in Figure 8. Consult your Tyco Electronics’ Account Manager or Application Engineer for case-toambient thermal resistance vs. airflow for various heat sink configurations, heights, and orientations. Longitudinal orientation is defined as the long axis of the module that is parallel to the airflow direction, whereas in the transverse orientation, the long axis is perpendicular to the airflow. These curves are obtained by experimental testing of heat sinks, which are offered in the product catalog. 12 Data Sheet April 2002 Copper paths must not be routed beneath the power module standoffs. For additional layout guidelines, refer to the FLTR100V10 or FLTR100V20 data sheet. Tyco Electronics Corp. QW/QC030-Series Power Modules: dc-dc Converters; 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs Data Sheet April 2002 Outline Diagram Dimensions are in millimeters and (inches). Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.) x.xx mm ± 0.25 mm (x.xxx in. ± 0.010 in.) Top View 36.8 (1.45) 57.9 (2.28) SIDE LABEL * Side View 12.7 (0.50) 0.51 (0.020) SIDE LABEL * 6.1 (0.24), 4 PLACES 4.1 (0.16) MIN, ALL PLACES 1.02 (0.040) DIA SOLDER-PLATED BRASS, ALL PLACES Bottom View 3.6 (0.14) 50.80 (2.000) 5.3 (0.21) 10.9 (0.43) 3.81 (0.150) VO(–) VI(–) 15.24 (0.600) 26.16 (1.030) – SENSE TRIM ON/OFF 11.43 (0.450) 7.62 (0.300) 15.24 (0.600) + SENSE VI(+) 7.62 (0.300) 5.3 (0.21) VO(+) 47.2 (1.86) MOUNTING INSERTS M3 x 0.5 THROUGH, 2 PLACES 8-1769(F).c * Side label includesTyco name, product designation, safety agency markings, input/output voltage and current ratings, and bar code. Tyco Electronics Corp. 13 QW/QC030-Series Power Modules: dc-dc Converters; 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs Data Sheet April 2002 Recommended Hole Pattern Component-side footprint. Dimensions are in millimeters and (inches). 5.3 (0.21) 7.62 (0.300) 47.2 (1.86) 26.16 (1.030) 15.24 (0.600) VI(+) VO(+) + SENSE TRIM ON/OFF – SENSE VI(–) 7.62 (0.300) 15.24 (0.600) VO(–) 3.81 (0.150) 5.3 (0.21) 10.9 (0.43) 11.43 (0.450) 50.80 (2.000) MOUNTING INSERTS M3 x 0.5 THROUGH, 2 PLACES 3.6 (0.14) 8-1769(F).c Ordering Information Please contact your Tyco Electronics’ Account Manager or Field Application Engineer for pricing and availability. Table 6. Device Codes Input Voltage Output Voltage Output Power Output Current Remote On/ Off Logic Device Code 48 Vdc 3.3 Vdc 21.5 W 6.5 A Negative QW030F1 108729807 48 Vdc 5 Vdc 30 W 6A Negative QW030A1 108748344 48 Vdc 12 Vdc 36 W 3A Negative QW030B1 108846171 48 Vdc 15 Vdc 40 W 2.66 A Negative QW030C1 108729799 48 Vdc 3.3 Vdc 21.5 W 6.5 A Positive QW030F TBD 48 Vdc 5 Vdc 30 W 6A Positive QW030A 108710765 48 Vdc 12 Vdc 36 W 3A Positive QW030B TBD 48 Vdc 15 Vdc 40 W 2.66 A Positive QW030C TBD Comcode Table 7. Device Options 14 Option Device Code Suffix 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.) Remote On/Off Logic - (Negative) 8 6 1 Tyco Electronics Corp. QW/QC030-Series Power Modules: dc-dc Converters; 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs Data Sheet April 2002 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) 848060992 848061008 848061016 848061024 848061032 848061040 Dimensions are in millimeters and (inches). 1/4 IN. 2.280 ± 0.015 (57.91 ± 0.38) 1.450 ± 0.015 (36.83 ± 0.38) 1/2 IN. 1/4 IN. 1/2 IN. 1 IN. 1 IN. 1.850 ± 0.005 (47.24 ± 0.13) 1.030 ± 0.005 (26.16 ± 0.13) 8-2473(F) 8-2472(F) Figure 16. QC/QW030-Series Longitudinal Heat Sink Tyco Electronics Corp. Figure 17. QC/QW030-Series Transverse Heat Sink 15 QW/QC030-Series Power Modules: dc-dc Converters; 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs Data Sheet April 2002 Europe, Middle-East and Africa Headquarters Tyco Electronics (UK) Ltd Tel: +44 (0) 1344 469 300, Fax: +44 (0) 1344 469 301 World Wide Headquarters Tyco Electronics Power Systems, Inc. 3000 Skyline Drive, Mesquite, TX 75149, USA +1-800-526-7819 FAX: +1-888-315-5182 (Outside U.S.A.: +1-972-284-2626, FAX: +1-972-284-2900) www.power.tycoelectronics.com e-mail: techsupport1@tycoelectronics.com Central America-Latin America Headquarters Tyco Electronics Power Systems Tel: +54 11 4316 2866, Fax: +54 11 4312 9508 Asia-Pacific Headquarters Tyco Electronics Singapore Pte Ltd Tel: +65 482 0311, Fax: 65 480 9299 Tyco Electronics Corporation reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information. © 2001 Tyco Electronics Power Systems, Inc. (Mesquite, Texas) All International Rights Reserved. Printed in U.S.A. April 2002 FDS01-041EPS (Replaces DS00-246EPS) Printed on Recycled Paper