MILITARY COTS DC-DC CONVERTER

Transcription

1 Single Output Quarter-brick MILITARY COTS DC-DC CONERTER 16-4 Continuous Input 16- Transient Input 1 Output A Output 1.A / A Efficiency Operation: - to + The MilQor series of Mil-COTS DC-DC converters brings SynQor s field proven high-efficiency synchronous rectification technology to the Military/Aerospace industry. SynQor s ruggedized encased packaging approach ensures survivability in demanding environments. Compatible with the industry standard format, these converters operate at a fixed frequency, and follow conservative component derating guidelines. They are designed and manufactured to comply with a wide range of military standards. E-N-M -8-1-Q MCOTS-C NERTER O A C C DC ) IN 1 OUT 8 (16-4 Safety Features, 3 MΩ input-to-output isolation Certified 69-1 requirement for basic insulation (see Standards and Qualifications page) Designed and Manufactured in the USA Control Features On/Off control referenced to input return Remote sense for the output voltage Wide output voltage trim range of +%, -% Mechanical Features Industry standard quarter-brick pin-out Size: 1.4 x.39 x. (39. x 6.6 x 1.7 mm) Total weight: 3.3oz (93.4g) Flanged baseplate version available Protection Features Operational Features High efficiency, 9% at full rated load current Operating input voltage range: 16-4 Fixed frequency switching provides predictable EMI No minimum load requirement Screening/Qualification Specification Compliance MCOTS series converters (with an MCOTS filter) are designed to meet: MIL-HDBK-74 (A-F) RTCA/DO-16E Section 16 MIL-STD-17 (B,D) DEF-STAN 61- (Part 6)/( or 6) MIL-STD-461 (C, D, E, F) Phone Input under-voltage lockout Output current limit and short circuit protection Active back bias limit Auto-recovery output over-voltage protection Thermal shutdown AS9 and ISO 91 certified facility Qualified to MIL-STD-8 Available with S-Grade or M-Grade screening Pre-cap inspection per IPC-A-6, Class III Temperature cycling per MIL-STD-883, Method, Condition B, cycles Burn-In at baseplate temperature Final visual inspection per MIL-STD-883, Method 9 Full component traceability Doc.# Rev. E Page 1

2 Output: 1 Current: A BLOCK DIAGRAM ISOLATION STAGE REGULATION STAGE 8 CURRENT SENSE 1 out(+) in(+) 3 4 IN RTN ISOLATION BARRIER OUT RTN GATE DRIERS CURRENT LIMIT ULO GATE CONTROL 6 OPTO-ISOLATION PRIMARY CONTROL TRIM SECONDARY CONTROL 7 SENSE(+) SENSE(-) DATA COUPLING TYPICAL CONNECTION DIAGRAM in(+) in External Input Filter Electrolytic Capacitor out(+) sense(+) Trim sense(_) in(_) Phone Rtrim-up or Rtrim-down Cload Iload out(_) Doc.# Rev. E Page

3 Output: 1 Current: A ELECTRICAL CHARACTERISTICS Tb =, in = 8dc unless otherwise noted; full operating temperature range is - to + baseplate temperature with appropriate power derating. Specifications subject to change without notice. Parameter Min. ABSOLUTE MAXIMUM RATINGS Input oltage Non-Operating Operating Operating Transient Protection Isolation oltage Input to Output Input to Base-Plate Output to Base-Plate Operating Temperature Storage Temperature oltage at input pin INPUT CHARACTERISTICS Operating Input oltage Range Input Under-oltage Lockout Turn-On oltage Threshold Turn-Off oltage Threshold Lockout oltage Hysteresis Recommended External Input Capacitance Input Filter Component alues (C1\Lin\C) Maximum Input Current No-Load Input Current Disabled Input Current Response to Input Transient Input Terminal Ripple Current Recommended Input Fuse OUTPUT CHARACTERISTICS Output oltage Set Point Output oltage Regulation Over Line Over Load Over Temperature Total Output oltage Range Output oltage Ripple and Noise Peak-to-Peak RMS Operating Output Current Range Output DC Current-Limit Inception Output DC Current-Limit Shutdown oltage Back-Drive Current Limit while Enabled Back-Drive Current Limit while Disabled Maximum Output Capacitance Output oltage during Load Current Transient Step Change in Output Current (A/µs) Settling Time Output oltage Trim Range Output Over-oltage Protection EFFICIENCY % Load % Load Typ Max. Units dc dc dc µf.1\.\ Continuous Continuous 1s transient, square wave Baseplate temperature transient for 1s Typical ESR.1-. Ω; Figure 13 Internal values; see Figure D in min; trim up; in current limit 3 A ma ma ma A ±. ±. ±.3 ± % % m m m A A A ma mf 1. m µs % % to 7% to % Iout max, μf load cap To within 1% out nom Across Pins 7 & ; Figure B Over full temp range % % See Figure 1 for efficiency curve See Figure 1 for efficiency curve µf\µh\µf Notes & Conditions./µs input transient; See Figure 1 RMS Fast acting external fuse recommended See Note Phone Over sample, line, load, temperature & life MHz bandwidth; see Note Full load Full load Subject to thermal derating Output voltage % Low Negative current drawn from output Negative current drawn from output out nominal at full load (resistive load) Doc.# Rev. E Page 3

4 Output: 1 Current: A ELECTRICAL CHARACTERISTICS Tb =, in = 8dc unless otherwise noted; full operating temperature range is - to + baseplate temperature with appropriate power derating. Specifications subject to change without notice. Parameter Min. Typ. Max. Units Notes & Conditions DYNAMIC CHARACTERISTICS Turn-On Transient Turn-On Time 3 ms Full load, out=9% nom. Output oltage Overshoot % Maximum Output Capacitance ISOLATION CHARACTERISTICS Isolation oltage (dielectric strength) See Absolute Maximum Ratings Isolation Resistance 3 MΩ Isolation Capacitance (input to output) pf See Note 3 TEMPERATURE LIMITS FOR POWER DERATING CURES Semiconductor Junction Temperature 1 Package rated to Board Temperature 1 UL rated max operating temp 13 Transformer Temperature 1 Maximum Baseplate Temperature, Tb FEATURE CHARACTERISTICS Switching Frequency Regulation Stage 3 4 khz Switching Frequency Isolation Stage khz Control Off-State oltage.4 9. On-State oltage -..8 Control Pull-Up oltage Pull-Up Resistance kω Over-Temperature Shutdown OTP Trip Point 1 Average PCB Temperature Over-Temperature Shutdown Restart Hysteresis RELIABILITY CHARACTERISTICS Calculated MTBF per MIL-HDBK-17F Hrs. Ground Benign, 7 Tb Calculated MTBF per MIL-HDBK-17F.8 6 Hrs. Ground Mobile, 7 Tb Note 1: Line and load regulation is limited by duty cycle quantization and does not indicate a shift in the internal voltage reference. Note : For applications requiring reduced output voltage ripple and noise, consult SynQor applications support ( support@synqor.com). Note 3: Higher values of isolation capacitance can be added external to the module. STANDARDS COMPLIANCE Parameter Notes & Conditions STANDARDS COMPLIANCE UL 69-1:7/A:14 CAN/CSA C. No. 69-1:7/A:14 EN 69-1:6/A:13 Basic Insulation Note: An external input fuse must always be used to meet these safety requirements. Contact SynQor for official safety certificates on new releases or download from the SynQor website. Phone Doc.# Rev. E Page 4

5 Output: 1 Current: A Efficiency (%) Efficiency (%) in 16 in 4 in 1 8 in 6 8 in in 6 -ºC ºC Figure : Efficiency at nominal output voltage and 6% rated power vs. case temperature for minimum, nominal, and maximum input voltage Power Dissipation (W) Power Dissipation (W) Figure 1: Efficiency at nominal output voltage vs. load current for minimum, nominal, and maximum input voltage at in 1 8 in 16 in 8 in 4 in 4 in 1 -ºC ºC ºC Case Temperature (ºC) Load Current (A) Figure 3: Power Dissipation at nominal output voltage vs. load current for minimum, nominal, and maximum input voltage at TCASE=. Figure 4: Power Dissipation at nominal output voltage and 6% rated power vs. case temperature for minimum, nominal, and maximum input voltage Output oltage () Iout (A) ºC Case Temperature (ºC) Load Current (A) in 8 in 3 4 in Figure : Thermal Derating (maximum output current vs. base plate temperature) at nominal input voltage. Phone Load Current (A) Base Plate Temperature () Figure 6: Output I- Characteristics (output voltage vs. load current) showing typical current limit curves. See Current Limit section in the Application Notes. Doc.# Rev. E Page

6 Output: 1 Current: A Figure 7: Typical Startup Waveform, input voltage pre-applied, Pin on Ch. Figure 8: Turn-On Transient at full resistive load and zero output capacitance initiated by in. Ch 1: out (/div). Ch : in (/div). Figure 9: Input Terminal Current Ripple, ic, at full rated output current and nominal input voltage with µf electrolytic capacitor (1A/div). Bandwidth: MHz. See Figure 13. Figure : Output oltage Ripple, out, at nominal input voltage and rated load current ( m/div). Load capacitance: 1µF ceramic capacitor and µf electrolytic capacitor. Bandwidth: MHz. See Figure 13. Figure 11: Output oltage Response to Step-Change in Load Current (%7%-% of Iout(max); di/dt = A/µs). Load cap: 1 µf ceramic and µf electrolytic capacitors. Ch 1: out (m/div), Ch : Iout (A/div). Figure 1: Output oltage Response to Step-Change in Input oltage (/ ms). Load cap: µf electrolytic output capacitance. Ch 1: out (/div), Ch : in (/div). Phone Doc.# Rev. E Page 6

7 Output: 1 Current: A Input Reflected Ripple Current source impedance is Input Terminal Ripple Current ic Output oltage Ripple DC-DC Converter OUT SOURCE electrolytic capacitor ceramic electrolytic capacitor capacitor Figure 13: Test Set-up Diagram showing measurement points for Input Terminal Ripple Current (Figure 9) and Output oltage Ripple (Figure ). Phone Figure 14: Output Short Load Current (A/div) as a function of time (ms/ div) when the converter attempts to turn on into a 1mΩ short circuit. Doc.# Rev. E Page 7

8 Output: 1 Current: A BASIC OPERATION AND FEATURES CONTROL FEATURES This converter series uses a two-stage power conversion topology. The first stage keeps the output voltage constant over variations in line, load, and temperature. The second stage uses a transformer to provide the functions of input/output isolation and voltage stepdown to achieve the low output voltage required. REMOTE (Pin ): The input, Pin, permits the user to control when the converter is on or off. This input is referenced to the return terminal of the input bus, in(-). The signal is active low (meaning that a low turns the converter on). Fig A details possible circuits for driving the pin. Both the first stage and the second stage switch at a fixed frequency for predictable EMI performance. Rectification of the transformer s output is accomplished with synchronous rectifiers. These devices, which are MOSFETs with a very low on-state resistance, dissipate significantly less energy than Schottky diodes, enabling the converter to achieve high efficiency. Dissipation throughout the converter is so low that it does not require a heatsink for operation in many applications; however, adding a heatsink provides improved thermal derating performance in extreme situations. To further withstand harsh environments and thermally demanding applications, the converter is available totally encased. See Ordering Information page for available thermal design options. SynQor quarter-brick converters use the industry standard footprint and pin-out. Remote Enable Circuit Open Collector Enable Circuit Rtrim-down = where Direct Logic Drive ( 11%. Δ% ) kω nominal desired % nominal To increase the output voltage, the user should connect a resistor between Pin 6 (TRIM) and Pin 7 (SENSE(+) input). For a desired increase of the nominal output voltage, the value of the resistor should be: Δ% = in(_) in(_) Note: the output over-voltage protection circuit senses the voltage across the output (pins 8 and 4) to determine when it should trigger, not the voltage across the converter s sense leads (pins 7 and ). Therefore, the resistive drop on the board should be small enough so that output OP does not trigger, even during load transients. To decrease the output voltage, the user should connect a resistor between Pin 6 (TRIM) and Pin (SENSE(-) input). For a desired decrease of the nominal output voltage, the value of the resistor should be: Negative Logic (Permanently Enabled) TTL/ CMOS Pin 7 should connect to out(+) and Pin should connect to out() at the point on the board where regulation is desired. If these connections are not made, the converter will deliver an output voltage that is slightly higher than its specified value. OUTPUT OLTAGE TRIM (Pin 6): The TRIM input permits the user to adjust the output voltage across the sense leads up or down according to the trim range specifications. SynQor uses industry standard trim equations. in(_) in(_) REMOTE SENSE Pins 7(+) and (-): The SENSE(+) and SENSE(-) inputs correct for voltage drops along the conductors that connect the converter s output pins to the load. Rtrim-up =.11 Figure A: arious Circuits for Driving the Pin. [ ( nominal ) desired + nominal 1. desired nominal ] kω The Trim Graph in Figure B shows the relationship between the trim resistor value and Rtrim-up and Rtrim-down, showing the total range the output voltage can be trimmed up or down. Note: The TRIM feature does not affect the voltage at which the output over-voltage protection circuit is triggered. Trimming the output voltage too high may cause the over-voltage protection circuit to engage, particularly during transients. Phone Doc.# Rev. E Page 8

9 Output: 1 Current: A It is not necessary for the user to add capacitance at the TRIM pin. The node is internally filtered to eliminate noise.,. Trim Resistance (kohms),. Total DC ariation of out: For the converter to meet its full specifications, the maximum variation of the DC value of out, due to both trimming and remote load voltage drops, should not be greater than that specified for the output voltage trim range. 1, % increase out % decrease out Figure B: Trim Graph. PROTECTION FEATURES Input Under-oltage Lockout (ULO): The converter is designed to turn off when the input voltage is too low, helping to avoid an input system instability problem, which is described in more detail in the application note titled Input System Instability on the SynQor website. When the input is rising, it must exceed the typical Turn-On oltage Threshold * before the converter will turn on. Once the converter is on, the input must fall below the typical "Turn-Off oltage Threshold"* before the converter will turn off. Output Current Limit (OCP): If the output current exceeds the Output DC Current Limit Inception value*, then a fast linear current limit controller will reduce the output voltage to maintain a constant output current. If as a result, the output voltage falls below the Output DC Current Limit Shutdown oltage * for more than ms, then the unit will enter into hiccup mode, with a ms off-time. The unit will then automatically attempt to restart. Back-Drive Current Limit: If there is negative output current of a magnitude larger than the Back-Drive Current Limit while Enabled specification*, then a fast back-drive limit controller will increase the output voltage to maintain a constant output current. If this results in the output voltage exceeding the Output Overoltage Protection threshold*, then the unit will shut down. Output Over-oltage Limit (OP): If the voltage across the output pins exceeds the "Output Over-oltage Protection" threshold*, the converter will immediately stop switching. This prevents damage to the load circuit due to 1) excessive series resistance in output current path from converter output pins to sense point, ) a release of a short-circuit condition, or 3) a release of a current limit condition. Load capacitance determines exactly how high the output voltage will rise in response to these conditions. After ms the converter will automatically restart. Over-Temperature Shutdown (OTP): A thermistor on the converter senses the average temperature of the module. The thermal shutdown circuit is designed to turn the converter off when the temperature at the sensed location reaches the OverTemperature Shutdown value*. It will allow the converter to turn on again when the temperature of the sensed location falls by the amount of the Over-Temperature Shutdown Restart Hysteresis *. Startup Inhibit Period: The Startup Inhibit Period ensures that the converter will remain off for approximately ms when it is shut down due to a fault. This generates a Hz hiccup mode, preventing the converter from overheating. There are multiple ways the converter can be shut down, initiating a Startup Inhibit Period: Output Over-oltage Protection Current Limit Short Circuit Protection Disabling via input * See Electrical Characteristics section. Phone Doc.# Rev. E Page 9

10 Output: 1 Current: A APPLICATION CONSIDERATIONS Input System Instability: This condition can occur because any DC-DC converter appears incrementally as a negative resistance load. A detailed application note titled Input System Instability is available on the SynQor website which provides an understanding of why this instability arises, and shows the preferred solution for correcting it. Application Circuits: A typical circuit diagram, Figure C below details the input filtering and voltage trimming. Input Filtering and External Input Capacitance: Figure D below shows the internal input filter components. This filter dramatically reduces input terminal ripple current, which otherwise could exceed the rating of an external electrolytic input capacitor. The recommended external input capacitance is specified in the Input Characteristics section of the Electrical Specifications. More detailed information is available in the application note titled EMI Characteristics on the SynQor website. Output Filtering and External Output Capacitance: The internal output filter components are shown in Figure D below. This filter dramatically reduces output voltage ripple. Some minimum external output capacitance is required, as specified in the Output Characteristics area of the Electrical Characteristics section. No damage will occur without this capacitor connected, but peak output voltage ripple will be much higher. Thermal Considerations: For baseplated and encased versions, the max operating baseplate temperature, TB, is ºC. Refer to the Thermal Derating Curves in the Technical Figures section to see the available output current at baseplate temperatures below ºC. A power derating curve can be calculated for any heatsink that is attached to the base-plate of the converter. It is only necessary to determine the thermal resistance, RTHBA, of the chosen heatsink between the baseplate and the ambient air for a given airflow rate. This information is usually available from the heatsink vendor. The following formula can the be used to determine the maximum power the converter can dissipate for a given thermal condition if its base-plate is to be no higher than ºC. Pdiss max in ºC - TA RTHBA This value of maximum power dissipation can then be used in conjunction with the data shown in the Power Dissipation Curves in the Technical Figures section to determine the maximum load current (and power) that the converter can deliver in the given thermal condition. For convenience, Thermal Derating Curves are provided in the Technical Figures section. in(+) out(+) sense(+) Electrolytic Capacitor External Input Filter = Trim sense(_) in(_) Rtrim-up or Rtrim-down Cload Iload out(_) Figure C: Typical Application Circuit (negative logic unit, permanently enabled). Lin in(+) out(+) C1 C Regulation Stage Current Sense Isolation Stage in(_) out(-) Figure D: Internal Input and Output Filter Diagram (component values listed in Electrical Characteristics section). Phone Doc.# Rev. E Page

11 Output: 1 Current: A Mechanical Drawing Normal Thermal Design Option 1.36 [39.1] 1.3 [6.16].4 [11.43] SEATING PLANE HEIGHT.. [1.7.63] PIN EXTENSION.18 [4.7]. [3.81] TOP IEW [47.4] [6.6]. [.8].4 [.].8 [.] [.46..] ) 3) 4) ) 6) 7) PIN DESIGNATIONS APPLIED TORQUE NOT TO EXCEED 6in-lb(.7Nm) M3 SCREW SHOULD NOT EXCEED." (.4mm) DEPTH BELOW THE SURFACE OF THE BASEPLATE. BASEPLATE FLATNESS TOLERANCE IS.4" (.mm) TIR FOR SURFACE. PINS ARE.4" (1.mm) DIA. WITH.8" (.3mm) DIA. STANDOFFS. PINS 4 AND 8 ARE.6" (1.7mm) DIA. WITH." (.4mm) DIA STANDOFFS ALL PINS: MATERIAL: COPPER ALLOY FINISH: MATTE TIN OER NICKEL PLATE WEIGHT: 3.3 oz. (93.4 g) ALL DIMENSIONS IN INCHES(mm) TOLERANCES: X.XXIN +/-. (X.Xmm +/-.mm) X.XXXIN +/-. (X.XXmm +/-.mm) 1.3 [7.6].6 [1.4] THREADED INSERT SEE NOTE 1 (4 PLCS) NOTES 1) Phone Pin 1 Name in(+) IN RTN OUT RTN SENSE( ) TRIM SENSE(+) out(+) Function Positive input voltage TTL input to turn converter on and off, referenced to in( ), with internal pull up. Input return Output return Negative remote sense1 Output voltage trim Positive remote sense3 Positive output voltage Notes: 1) SENSE( ) should be connected to out( ) either remotely or at the converter. ) Leave TRIM pin open for nominal output voltage. 3) SENSE(+) should be connected to out(+) either remotely or at the converter. Doc.# Rev. E Page 11

12 Output: 1 Current: A Mechanical Drawing Flanged Thermal Design Option. [.88]. [.8] 1.36 [39.1].4 [11.4] PIN EXTENSION.18 [4.6] SEATING PLANE HEIGHT.±. [1.7±.63]. [3.8] [.] TOP IEW.386 [6.6] 1.3 [33.].36 [9.1]. [.8].66 [.48] [17.8] NOTES 1) ) 3) 4) ) 6) 7).6 [1.] PIN DESIGNATIONS - CONERTER APPLIED TORQUE NOT TO EXCEED 6in-lb(.7Nm) BASEPLATE FLATNESS TOLERANCE IS." (.mm) TIR FOR SURFACE. PINS ARE.4" (1.mm) DIA. WITH.8" (.3mm) DIA. STANDOFFS. PINS 4 AND 8 ARE.6" (1.7mm) DIA. WITH." (.4mm) DIA STANDOFFS ALL PINS: MATERIAL: COPPER ALLOY FINISH: MATTE TIN OER NICKEL PLATE WEIGHT: 3. oz (1.1 g) ALL DIMENSIONS IN INCHES(mm) TOLERANCES: X.XXIN +/-. (X.Xmm +/-.mm) X.XXXIN +/-. (X.XXmm +/-.mm).3 [7.6] FLANGE THICKNESS.1 [3.].13 [3.3] SEE NOTE 1 (6 PLCS) Phone Pin 1 Name in(+) IN RTN OUT RTN SENSE( ) TRIM SENSE(+) out(+) Function Positive input voltage TTL input to turn converter on and off, referenced to in( ), with internal pull up. Input return Output return Negative remote sense1 Output voltage trim Positive remote sense3 Positive output voltage Notes: 1) SENSE( ) should be connected to out( ) either remotely or at the converter. ) Leave TRIM pin open for nominal output voltage. 3) SENSE(+) should be connected to out(+) either remotely or at the converter. Doc.# Rev. E Page 1

13 Output: 1 Current: A Mil-COTS Qualification Test Name Life Testing Shock-ibration # Tested (# Failed) Details isual, mechanical and electrical testing before, during and after hour full load isual, mechanical and electrical testing before, during and after shock and vibration tests Humidity +8 C, 9% RH, hours, minutes on / 6 hours off Temperature Cycling cycles of - C to + C (3 minute dwell at each temperature) Solderability 1 pins DMT -6 C to +1 C across full line and load specifications in C steps Altitude 7, feet (1 km), see Note 1 () () 8 () () 1 () 7 () () Consistent with MIL-STD-883F Method Method.8 MIL-STD-, Methods 1A & 13B Method 4.7 Method.8, Condition A Method 3 Note: A conductive cooling design is generally needed for high altitude applications because of naturally poor convective cooling at rare atmospheres. Mil-COTS Converter and Filter Screening Screening Process Description S-Grade M-Grade Baseplate Operating Temperature - C to + C - C to + C Storage Temperature -6 C to +13 C -6 C to +13 C Pre-Cap Inspection IPC-A-6, Class III Temperature Cycling MIL-STD-883F, Method, Condition B, Cycles Burn-In C Baseplate 1 Hours 96 Hours % C - C, + C, + C MIL-STD-883F, Method 9 Final Electrical Test Final isual Inspection Mil-COTS MIL-STD-8G Qualification Testing MIL-STD-8G Test Method Description Fungus 8.6 Table 8.6-I. - Procedure I Storage: 7, ft / hr duration Altitude. - Procedure II Operating: 7, ft / hr duration; Ambient Temperature Rapid Decompression. - Procedure III Storage: 8, ft to 4, ft Acceleration Procedure II Operating: 1 g Salt Fog 9. Storage 1. - Procedure I Storage: 13 / 3 hrs 1. - Procedure II Operating: / 3 hrs. - Procedure I Storage: -6 / 4 hrs. - Procedure II Operating: - / 3 hrs Temperature Shock 3. - Procedure I - C Storage: -6 to 13 ; 1 cycles Rain 6. - Procedure I Wind Blown Rain Immersion 1. - Procedure I Non-Operating Humidity 7. - Procedure II Aggravated 9% RH (Figure 7.-7 aggravated temp - humidity cycle, 1 cycles) Random ibration Procedure I - Hz, PSD level of 1. g/hz (4.6 grms), duration = 1 hr/axis Procedure I g peak, 11 ms, Functional Shock (Operating no load) (saw tooth) Procedure I Category Procedure I Bench Handling Shock Rotary wing aircraft - helicopter, 4 hrs/axis, g (sine sweep from - Hz) Blowing Dust. - Procedure II Blowing Sand High Temperature Low Temperature Shock Sinusoidal vibration Sand and Dust Phone Doc.# Rev. E Page 13

14 Output: 1 Current: A Ordering Information/ Part Numbering Example -N-M Not all combinations make valid part numbers, please contact SynQor for availability. See product summary page for details. Family MCOTS Product C: Converter Input oltage 8: 16-4 Output oltage : 1: 1: 8: : Package QE: Heatsink Option QuarterBrick Exa N: Normal Threaded F: Flanged Screening Level Options S: S-Grade Standard [ ]: M: M-Grade Feature APPLICATION NOTES A variety of application notes and technical white papers can be downloaded in pdf format from our website. Contact SynQor for further information and to order: Phone: Toll Free: Fax: Web: Address: power@synqor.com 1 Swanson Road Boxborough, MA 1719 USA Phone PATENTS SynQor holds numerous U.S. patents, one or more of which apply to most of its power conversion products. Any that apply to the product(s) listed in this document are identified by markings on the product(s) or on internal components of the product(s) in accordance with U.S. patent laws. SynQor s patents include the following:,999,417 6,,74 6,4,89 6,94,19 6,894,468 6,896,6 6,97,987 7,,39 7,7,19 7,8,146 7,119,4 7,69,34 7,7,1 7,7,3 7,8,83 7,64,7 7,76,687 7,787,61 8,3,9 8,149,97 8,493,71 8,644,7 9,143,4 WARRANTY SynQor offers a two () year limited warranty. Complete warranty information is listed on our website or is available upon request from SynQor. Doc.# Rev. E Page 14