Technical Specification BQ4H136HTx80 230-400V 13.6V 80A 1048W 4250V Half-brick Input Output Current Power Isolation DC-DC Converter The BQ4H136HTx80 bus converter is a next-generation, board-mountable, isolated, fixed switching frequency DC-DC converter that uses synchronous rectification to achieve extremely high conversion efficiency. The BusQor® provides an isolated step down voltage from 385V to 13.6V intermediate bus with no regulation in a standard half-brick module. The BQ4H136HTx80 converter is ideal for creating the mid-bus voltage required to drive standard DC-DC non-isolated converters. NR 6HTC80 BQ4H13NVERTER S-G 80A BUS CO V 13.6V OUT @ 0 230-40 IN BQ4H136HTC80NRS-G Model Operational Features • • • • • Mechanical Features High efficiency, 96% at full rated load current Delivers 80A full power with minimal derating Operating input voltage range: 230-400V Fixed frequency switching provides predictable EMI No minimum load requirement • Industry standard half-brick pin-out configuration • Size: 2.39” x 2.49” (60.6 x 63.14 mm), height: 0.512” (13.0 mm) • Total Encased weight: 4.8 oz (136 grams) Protection Features • Input under-voltage and over voltage lockout protects • Output current limit and short circuit protection (auto recovery) • Thermal shutdown Control Features • On/Off control referenced to input side • Inherent current share (by droop method) for high current and parallel applications. • Clock synchronization (primary referenced) Contents Page No. Safety Features • UL 60950-1:R2011-12 • EN60950-1/A2:2013 • CAN/CSA-C22.2 No. 60950-1/A1:2011 Product # BQ4H136HTx80 Phone 1-888-567-9596 Encased Mechanical Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Flanged Encased Mechanical Diagram . . . . . . . . . . . . . . . . . . . . . . . . . 3 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Compliance & Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Technical Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Applications Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 www.synqor.com Doc.# 005-0006546 Rev. A 08/04/15 Page 1 Input: 230-400V Output: 13.6V Current: 80A Package: Half-brick Encased Mechanical Diagram SEATING PLANE HEIGHT 0.512±0.005 [13.00±0.12] 2.486 [63.14] 2.000 [50.80] PIN EXTENSION 0.163 [4.14] 1.400 [35.56] 5 TOP VIEW 6 0.004 [0.10] 1.900 2.386 [48.26][60.60] 0.01 [0.3] 1.900 [48.26] 4 1 0.30 [7.6] 3 2 1 0.400 0.600 [10.16] THRU HOLE STANDOFFS SEE NOTE 1 (4 PLCS) 1.400 [35.56] NOTES PIN DESIGNATIONS 1) Applied torque per screw should not exceed 6in lb (.7Nm) 2) Baseplate flatness tolerance is 0.004" (.10mm) TIR for surface 3) Pins 1-4 are 0.040" (1.02mm) dia. with 0.080" (2.03mm) dia. standoff shoulders 4) Pins 5 and 6 are 0.080" (2.03mm) dia with .125" (3.18) dia. standoff shoulders 5) All pins: Material: Copper Alloy Finish: Matte Tin over Nickel Plate 6) Undimensioned components are shown for visual reference only 7) All dimensions in inches[mm]" Tolerances X.XXIN +/-0.02 (X.Xmm +/-0.5mm) Pin 1 2 3 4 5 6 Name Function Vin(+) Positive input voltage TTL input to turn converter on and off, ON/OFF referenced to Vin(–), with internal pull up. Clock Clock synchronization Sync Vin(–) Negative input voltage Vout(–) Negative output voltage Vout(+) Positive output voltage X.XXXIN +/-0.010 (X.XXmm +/-0.25mm 8) Weight: 4.8 oz (136 grams) 9) Threaded or non-threaded options available 10)Workmanship: Meets or exeeds IPC-A-610 Class II Product # BQ4H136HTx80 Phone 1-888-567-9596 www.synqor.com Doc.# 005-0006546 Rev. A 08/04/15 Page 2 Input: 230-400V Output: 13.6V Current: 80A Package: Half-brick Flanged Encased Mechanical Diagram 3.150 [80.01] 2.950 [74.93] PIN EXTENSION 0.180 [4.57] SEATING PLANE HEIGHT 0.495 0.025 [12.57 0.63] 2.486 [63.14] 1.400 [35.56] 6 5 TOP VIEW 0.010 [0.25] 1.300 [33.02] 1.866 [47.40] 1.900 [48.26] 2.386 [60.60] 4 1 0.31 [7.9] 0.775 0.020 [19.69 0.50] 2 1 FLANGE THICKNESS 0.125 [3.18] .130 [3.30] SEE NOTE 1 (6 PLCS) 0.400 [10.16] 0.600 [15.24] 1.400 [35.56] NOTES PIN DESIGNATIONS 1)Applied torque per screw should not exceed 5in lb (.7Nm) 2)Baseplate flatness tolerance is 0.01" (.25mm) TIR for surface 3)Pins 1-4 are 0.040" (1.02mm) dia. with 0.080" (2.03mm) dia. standoff shoulders 4)Pins 5 and 6 are 0.080" (2.03mm) dia with .125" (3.18) dia. standoff shoulders 5)All pins: Material: Copper Alloy Finish: Matte Tin over Nickel Plate 6)Undimensioned components are shown for visual reference only 7)All dimensions in inches[mm]" Tolerances X.XXIN +/-0.02 (X.Xmm +/-0.5mm) X.XXXIN +/-0.010 (X.XXmm +/-0.25mm) 8)Weight: 5.0 oz (141 grams) 9)Workmanship: Meets or exeeds IPC-A-610 Class II Product # BQ4H136HTx80 3 Phone 1-888-567-9596 Pin 1 2 3 4 5 6 www.synqor.com Name Function Vin(+) Positive input voltage TTL input to turn converter on and off, ON/OFF referenced to Vin(–), with internal pull up. Clock Clock synchronization Sync Vin(–) Negative input voltage Vout(–) Negative output voltage Vout(+) Positive output voltage Doc.# 005-0006546 Rev. A 08/04/15 Page 3 Input: 230-400V Output: 13.6V Current: 80A Package: Half-brick Technical Specification BQ4H136HTx80 Electrical Characteristics Ta = 25 °C, airflow rate = 300 LFM, Vin = 385V dc unless otherwise noted; full operating temperature range is -40 °C to +100 °C base plate temperature with appropriate power derating. Specifications subject to change without notice. Parameter Min. ABSOLUTE MAXIMUM RATINGS Input Voltage Non-Operating Operating Isolation Voltage Input to Output Input to Base-plate Output to Base-Plate Operating Temperature Storage Temperature Voltage at ON/OFF input pin INPUT CHARACTERISTICS Operating Input Voltage Range Product # BQ4H136HTx80 -0.5 Max. Units Notes & Conditions 500 475 V V -40 4250 2300 2300 100 Vdc Vdc Vdc °C -45 -2 125 18 °C V 400 450 V V 3.8 V V V V V V A mA mA mA mA A µF 230 155 Input Under-Voltage Lockout Turn-On Voltage Threshold Turn-Off Voltage Threshold Lockout Voltage Hysteresis Input Over-Voltage Shutdown Turn-On Voltage Threshold Turn-Off Voltage Threshold Maximum Input Current No-Load Input Current Disabled Input Current Input Reflected-Ripple Current Input Terminal-Ripple Current Recommended Input Fuse (see Note 1) Recommended External Input Capacitance Input Filter Component Values (L\C) OUTPUT CHARACTERISTICS Output Voltage Set Point Output Voltage Regulation Over Line Over Load Over Temperature Total Output Voltage Range Output Voltage Ripple and Noise Peak-to-Peak RMS Operating Output Current Range Output DC Current-Limit Inception Output DC Current-Limit Shutdown Voltage Back-Drive Current Limit while Disabled Maximum Output Capacitance EFFICIENCY 100% Load 50% Load Typ. 385 385 153 148 5.0 410 420 50 3.0 15 250 30 10 10 4.7\0.47 µH\µF 13.38 V 45\6.1 5.9\800 2.2\300 %\V %\mV %\mV V 7.050 Phone 1-888-567-9596 14.300 250 90 0 400 80 mV mV A 8,000 A V mA µF 91 10 0.7 96 95 www.synqor.com Continuous See Note 1 Continuous Transient, 100 ms, dv/dt < 0.5 V/µs Vin = 230 V RMS through 10µH inductor RMS, full load Fast blow external fuse recommended Typical ESR 0.1-0.2 Ω Internal values Vin = 385 V, Io = 0 A Over sample, line, load, temperature & life 20 MHz bandwidth; see Note 3 Full load Full load Subject to thermal derating; Vin = 385 V Vin = 385 V Vin = 385 V Negative current drawn from output 13.6 Vout at 40 A Resistive Load % % Doc.# 005-0006546 Rev. A 08/04/15 Page 4 Input: 230-400V Output: 13.6V Current: 80A Package: Half-brick Technical Specification BQ4H136HTx80 Electrical Characteristics (continued) Ta = 25 °C, airflow rate = 300 LFM, Vin = 385V dc unless otherwise noted; full operating temperature range is -40 °C to +100 °C base plate temperature with appropriate power derating. Specifications subject to change without notice. Parameter Min. DYNAMIC CHARACTERISTICS Output Voltage during Load Current Transient Step Change in Output Current (0.1 A/µs) Settling Time Turn-On Transient Turn-On Time (with 8mF output capacitance) Start-Up Inhibit Time Output Voltage Overshoot ISOLATION CHARACTERISTICS Isolation Voltage (dielectric strength) Isolation Resistance Isolation Capacitance (input to output) Semiconductor Junction Temperature Board Temperature Transformer Core Temperature Maximum Base-Plate Temperature, Tb FEATURE CHARACTERISTICS Switching Frequency Clock Synchronization ON/OFF Control On-State Voltage Off-State Voltage ON/OFF Control Pull-Up Voltage Pull-Up Resistance Over-Temperature Shutdown OTP Trip Point Over-Temperature Shutdown Restart Hysteresis RELIABILITY CHARACTERISTICS Calculated MTBF (Telcordia) TR-NWT-000332 Calculated MTBF (MIL-217) MIL-HDBK-217F Field Demonstrated MTBF Typ. Max. 350 100 20 250 0 mV µs 50% to 75% to 50% Iout max To within 1% Vout nom 30 ms ms % Half load (resistive), Vout=90% nom; Note 4 -40 °C to +100 °C; Figure F 8 mF load capacitance 4250 See Absolute Maximum Ratings 125 125 125 100 V MΩ pF °C °C °C °C 295 600 kHz kHz fundamental ripple frequency is 2 x fs 0.4 18 V V 100 N/A 255 500 275 -1 2 Units Notes & Conditions Note 5 Package rated to 150 °C UL rated max operating temp 130 °C Application notes Figure B 5 82.5 140 150 10 1.4 1.2 V kΩ °C °C Average PCB Temperature 106 Hrs. Tb = 70 °C 106 Hrs. Tb = 70 °C 106 Hrs. See our website for details Note 1: Converter will undergo input over-voltage shutdown. Note 2: Product certification tests were carried out using 10A fast blow fuse. Fuse interruption characteristics have to be taken into account while designing input traces. User should ensure that Input trace is capable of withstanding fault currents Note 3: For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: [email protected]) Note 4: Starting up under full load can result in hic-up Note 5: Isolation capacitance can be added external to the module (recommended). Product # BQ4H136HTx80 Phone 1-888-567-9596 www.synqor.com Doc.# 005-0006546 Rev. A 08/04/15 Page 5 Input: 230-400V Output: 13.6V Current: 80A Package: Half-brick Technical Specification Compliance & Testing Parameter Notes & Conditions STANDARDS COMPLIANCE UL 60950-1:R2011-12 Reinforced EN60950-1/A2:2013 CAN/CSA-C22.2 No. 60950-1/A1:2011 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. Parameter QUALIFICATION TESTING Life Test Vibration Mechanical Shock Temperature Cycling Power/Thermal Cycling Design Marginality Humidity Solderability Product # BQ4H136HTx80 # Units 32 5 5 10 5 5 5 15 pins Phone 1-888-567-9596 Test Conditions 95% rated Vin and load, units at derating point, 1000 hours 10-55 Hz sweep, 0.060" total excursion, 1 min./sweep, 120 sweeps for 3 axis 100g minimum, 2 drops in x, y and z axis -40 °C to 100 °C, unit temp. ramp 15 °C/min., 500 cycles T operating = min to max, Vin = min to max, full load, 100 cycles Tmin-10 °C to Tmax+10 °C, 5 °C steps, Vin = min to max, 0-105% load 85 °C, 95% RH, 1000 hours, continuous Vin applied except 5 min/day MIL-STD-883, method 2003 www.synqor.com Doc.# 005-0006546 Rev. A 08/04/15 Page 6 Input: 230-400V Output: 13.6V Current: 80A Package: Half-brick Technical Figures 100 97.0 95 96.5 96.0 85 Efficiency (%) Efficiency (%) 90 80 75 70 95.5 95.0 230 Vin 25º C 385 Vin 65 94.5 400 Vin 60 0 20 40 60 80 40º C 55º C 94.0 100 Load Current (A) Figure 1: Efficiency at nominal output voltage vs. load current for minimum, nominal, and maximum input voltage at 25°C. 100 200 Air Flow (LFM) 300 Figure 2: Efficiency at nominal output voltage and 60% rated power vs. airflow rate for ambient air temperatures of 25°C, 40°C, and 55°C (nominal input voltage). 35 Power Dissipation (W) Power Dissipation (W) 60 40 20 230 Vin 30 25 20 25º C 40º C 385 Vin 55º C 400 Vin 0 0 20 40 60 80 15 100 100 Load Current (A) Figure 3: Power dissipation vs. load current for minimum, nominal, and maximum input voltage at TCASE=25°C. Air Flow (LFM) 300 400 100 1000 80 800 Pout (W) 1200 600 60 400 40 Vin = 230V 20 0 200 Figure 4: Power dissipation at nominal output voltage and 60% rated power vs. airflow rate for ambient air temperatures of 25°C, 40°C, and 55°C (nominal input voltage). 120 Iout (A) 400 Vin = 400V 70 80 90 100 0 110 Base Plate Temperature (°C) Figure 5: Maximum output current vs. base plate temperature. Product # BQ4H136HTx80 Vin = 230V 200 Vin = 385V Phone 1-888-567-9596 Vin = 385V Vin = 400V 70 80 Semiconductor90junction temperature 100 is within 1°C of surface temperature 110 Base Plate Temperature (°C) Figure 6: Maximum output power vs. base plate temperature. www.synqor.com Doc.# 005-0006546 Rev. A 08/04/15 Page 7 Input: 230-400V Output: 13.6V Current: 80A Package: Half-brick Technical Figures 15 20 12 Output Voltage (V) Output Voltage (V) 15 10 5 230 Vin 9 6 Vin = 230V Vin = 385V 3 385 Vin Vin = 400V 400 Vin 0 0 20 40 60 80 100 120 0 140 Load Current (A) 0 20 40 60 80 100 120 Load Current (A) Figure 7: Output voltage vs. load current for different input voltages showing typical current limit curves. Figure 8: Output voltage vs. load current, regulation curves for minimum, nominal, and maximum input voltage at TCASE=25°C. Figure 9: Turn-on transient at half load (resistive load) (10 ms/div). Load cap: 15µF tantalum capacitor and 1mF ceramic capacitor bank. Input voltage preapplied. Ch 1: Vout (5V/div). Ch 2: ON/OFF input (2 V/div). Figure 10: Turn-on transient at half load (resistive load) (10 ms/div). Load cap: 15µF tantalum capacitor and 8mF ceramic capacitor bank. Input voltage preapplied. Ch 1: Vout (5V/div). Ch 2: ON/OFF input (2 V/div). Figure 11: Output voltage response to step-change in load current (50%-75%50% of Iout(max); dI/dt = 0.1A/µs). Load cap: 15µF tantalum cap and 1µF ceramic cap. Ch 1: Vout (1V/div), Ch 2: Iout (50A/div). Figure 12: Output voltage response to step-change in load current (50%-75%50% of Iout(max): dI/dt = 1A/µs). Load cap: 15µF, 30 mΩ ESR tantalum cap and 1µF ceramic cap. Ch 1: Vout (1V/div), Ch 2: Iout (50A/div). Product # BQ4H136HTx80 Phone 1-888-567-9596 www.synqor.com Doc.# 005-0006546 Rev. A 08/04/15 Page 8 Input: 230-400V Output: 13.6V Current: 80A Package: Half-brick Technical Figures Input Reflected Ripple Current source impedance iS VSOURCE Input Terminal Ripple Current iC electrolytic capacitor Output Voltage Ripple DC-DC Converter VOUT ceramic capacitor tantalum capacitor Figure 13: Test set-up diagram showing measurement points for Input Terminal Ripple Current (Figure 14), Input Reflected Current (Figure 15) and Output Voltage Ripple (Figure 16). Figure 14: Input Terminal Ripple Current, ic, at full rated output current and nominal input voltage with 10µH source impedance and 47µF electrolytic capacitor (200 mA/div). See Figure 13. Figure 15: Input reflected ripple current, is, through a 10 µH source inductor, using a 47µF electrolytic input capacitor (10mA/div). See Figure 13. Figure 16: Output voltage ripple at nominal input voltage and rated load current (200 mV/div). Load capacitance: 1µF ceramic capacitor and 15µF tantalum capacitor. Bandwidth: 20 MHz. See Figure 13. Figure 17: Rise of output voltage after the removal of a short circuit across the output terminals. Rshort = 5mΩ. Ch1: (5V/div). Ch2: Iout (50A/div). Bandwidth: 20MHz. Product # BQ4H136HTx80 Phone 1-888-567-9596 www.synqor.com Doc.# 005-0006546 Rev. A 08/04/15 Page 9 Input: 230-400V Output: 13.6V Current: 80A Package: Half-brick Applications Section BASIC OPERATION AND FEATURES CONTROL FEATURES With voltages dropping and currents rising, the economics of an Intermediate Bus Architecture (IBA) are becoming more attractive, especially in systems requiring multiple low voltages. IBA systems separate the role of isolation and voltage scaling from regulation and sensing. The BusQor series bus converter provides isolation and an unregulated voltage step down in one compact module, leaving regulation to simpler, less expensive non-isolated converters. REMOTE ON/OFF (Pin 2): The ON/OFF input, Pin 2, permits the user to control when the converter is on or off. This input is referenced to the return terminal of the input bus, Vin(-). In the negative logic version, the ON/OFF signal is active low (meaning that a low turns the converter on). Figure B is a detailed look of the internal ON/OFF circuitry. 5V In Figure A below, the BusQor module provides the isolation stage of the IBA system. The isolated bus then distributes power to the non-isolated buck regulators to generate the required voltage levels at the points of load. In this case, the bucks are represented with SynQor’s NiQor series of nonisolated DC-DC converters. In many applications requiring multiple low voltage outputs, significant savings can be achieved in board space and overall system costs. When designing an IBA system with bus converters, the designer can select from a variety of bus voltages. While there is no universally ideal bus voltage, most designs employ one of the following: 31 V, 28 V, 24 V, 12 V, 9.6 V, or 6 V. Higher bus voltages can lead to lower efficiency for the buck regulators but are more efficient for the bus converter and provide lower board level distribution current. Lower bus voltages offer the opposite trade offs. SynQor’s BusQor modules act as a true dc transformer. The output voltage is proportional to the input voltage, with a specified “turns ratio” or voltage ratio, plus minor drop from the internal resistive losses in the module. When used in IBA systems, the output variation of the BusQor must be in accordance with the input voltage range of the non-isolated converters being employed. The BusQor architecture is very scalable, meaning multiple bus converters can be connected directly in parallel to allow current sharing for higher power applications. 82.5K PIN2 PIN3 ON/OFF 10K TO ENABLE CIRCUITRY IN RTN Figure B: Internal ON/OFF pin circuitry SYNCHRONIZATION: The BQ4H converter’s switching frequency can be synchronized to an external frequency source that is in the 500 kHz to 600 kHz range. A pulse train at the desired frequency should be applied to the CLK SYNC pin (pin 3) with respect to the INPUT RETURN (pin 4). This pulse train should have a duty cycle in the 20% to 80% range. Its low value should be below 0.8 V to be guaranteed to be interpreted as a logic low, and its high value should be above 2.0 V to be guaranteed to be interpreted as a logic high. The transition time between the two states should be less than 300 ns. If the converter is not to be synchronized, the CLK SYNC pin should be left open circuit. The converter will then operate in its free-running mode at a frequency of approximately 550 kHz (twice the switching frequency). If, due to a fault, the CLK SYNC pin is held in either a logic low or logic high state continuously, or the CLK SYNC frequency is outside the 500-600 kHz range, the converter will revert to its free-running frequency. 12.0 V 385 Vdc 230-400 Vdc BusQor Converter Front End 9.5 V 13.6 Vdc 5.0 V 3.3 V 2.5 V Typical User Board Converters Loads Figure A: Example of Intermediate Bus Architecture using isolated or nonisolated converters. Product # BQ4H136HTx80 Phone 1-888-567-9596 Figure C: Equivalent circuit looking into the CLK SYNC pin with respect to the IN RTN (input return) pin. www.synqor.com Doc.# 005-0006546 Rev. A 08/04/15 Page 10 Input: 230-400V Output: 13.6V Current: 80A Package: Half-brick Applications Section PROTECTION FEATURES Input Under-Voltage Lockout: The converter is designed to turn off when the input voltage is too low, helping avoid an input system instability problem, described in more detail in the application note titled “Input System Instability”. The lockout circuitry is a comparator with DC hysteresis. When the input voltage is rising, it must exceed the typical TurnOn Voltage Threshold value (listed on the specification page) before the converter will turn on. Once the converter is on, the input voltage must fall below the typical Turn-Off Voltage Threshold value before the converter will turn off. Also see Figure F. Input Over-Voltage Shutdown: The converter also has a two stage over-voltage feature that limits the converter's duty cycle for 100 ms before shutdown and a higher second level with no delay before shutdown if the input voltage is too high (See the Input Over-Voltage Shutdown section in the Electrical Characteristics Table for specific voltage levels). It also has a hysteresis and time delay to ensure proper operation. Output Current Limit: The output of the BusQor module is electronically protected against output overloads. When an overload current greater than the “DC Current-Limit Inception” specification is drawn from the output, the output shuts down to zero volt in a period of 1ms typical (see Figure D). The shutdown period lasts for a typical period of 250 ms (Figure E) after which the BusQor tries to power up again (10 ms). If the overload persists, the output voltage will go through repeated cycles of shutdown and restart with a duty cycle of 4% (On) and 96% (Off) respectively. Output Current 90 A 80 A Output Voltage 13.6 V 0V 1 ms Time Figure D: Output Overload protection diagram (not to scale) Product # BQ4H136HTx80 Phone 1-888-567-9596 Output Current 130 A peak Output Voltage <13 V 0V 250 ms 10 ms Time Figure E: Output Short Circuit and Auto-Resetting protection diagram (not to scale) The BusQor module returns (auto resetting) to normal operation once the overload is removed. The BusQor is designed to survive in this mode indefinitely without damage and without human intervention. Output Short Circuit Protection: When the output of the BusQor module is shorted, a peak current of typically 130 A will flow into the short circuit for a period not greater than 1 ms (typically 200 uS). The output of the BusQor will shutdown to zero for ~ 250 mS (Figure E). At the end of the shutdown period the BusQor module tries to power up again. If the short circuit persists, the output voltage will go through repeated cycles of shutdown and restart with a duty cycle of 4% (On) and 96% (Off) respectively. The BusQor module returns (auto resetting) to normal operation once the short circuit is removed. The BusQor is designed to survive in this mode indefinitely without damage and without human intervention. In the Auto resetting mode, also referred to as “Hiccup” mode, the power drawn from the 385 V input is about ~10 Watts, most of which is dissipated into the external fault. It is important that copper traces and pads from the output circuit be designed to withstand the short term peaks, although the average current into the fault may be as low as 0.04 A typical. See Figure 17 for appropriate waveform. Over-Temperature Shutdown: A temperature sensor 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 Over-Temperature 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 value. www.synqor.com Doc.# 005-0006546 Rev. A 08/04/15 Page 11 Input: 230-400V Output: 13.6V Current: 80A Package: Half-brick Applications Section APPLICATION CONSIDERATIONS Start-Up Inhibit Period: Figure F details the Start-Up Inhibit Period for the BusQor module. At time t0, when Vin is applied with On/Off pin asserted (enabled), the BusQor output begins to build up. Before time t1, when the input voltage is below the UVL threshold, the unit is disabled by the Input Under-Voltage Lockout feature. When the input voltage rises above the UVL threshold, the Input UnderVoltage Lockout is released, and a typical Initial Startup Inhibit Period of 70 ms is initiated. The output builds up to 90% of the nominal value of 13.6 V in a period of 20 ms typical (50% load). At time t2, when the On/Off pin is de-asserted (disabled), the BusQor output instantly drops to 0 V. Fall time from 13.6 V to 0 V is dependent on output capacitance and any parasitic trace inductance in the output load circuit. At time t3, when the On/Off pin is re-asserted (enabled), the BusQor module output begins to build up after the inhibit period of 250 ms typical has elapsed. Refer to the Control Features section of the data sheet for details on enabling and disabling methods for Bus Qor modules. Thermal Derating Test Setup The curves showing the derating of output current and power as a function of the base plate temperature temperature, are taken with the oven setup shown in Fig. G. The converter module is soldered to a carrier PCB that is mounted horizontally within an oven. The carrier PCB is a four layer 4 oz PCB. A large aluminum heatsink (thermal grease is applied between the base plate and the heatsink interface to minimize the thermal impedance) is attached to the baseplate to keep the baseplate temperature constant during thermal testing. A small hole is drilled through the heatsink in order to attach a thermocouple to the baseplate of the DTU. Additional thermocouples are attached to the hottest components before base plating to monitor the internal temperature of all of the critical components during testing. The oven temperature is controlled so as to keep the base plate temperature to the desired value. The base plate temperature is kept at 100 oC or below for all conditions. If the temperature of an internal component exceeds 125 oC, the output current (power level) is reduced so as to keep the temperature of all internal components below 125 oC. Vin Heat Sink UVLO Thermocouple DUT On/Off Test PCB (N logic) OFF ON t0 t1 t2 t t3 Vout Thermal Chamber Figure G: Thermal chamber setup for derating curves. Initial Start-up Inhibit Start-up Inhibit Time Start-Up Figure F: Power Up/Down Diagram (not to scale) showing Start-Up Inhibit Period Product # BQ4H136HTx80 Phone 1-888-567-9596 www.synqor.com Doc.# 005-0006546 Rev. A 08/04/15 Page 12 Input: 230-400V Output: 13.6V Current: 80A Package: Half-brick Applications Section 385 Vin 20.0% Deviation from 50/50 Sharing (%) Current Sharing: BusQor modules are designed to operate in parallel without the use of any external current share circuitry. A typical (recommended) circuit for paralleling two BusQor modules is shown in Figure I. An output capacitor is recommended across each module and located close to the converter for optimum filtering and noise control performance. Dedicated input inductors are recommended but are considered optional. Input capacitors must be located close to the converter module. PCB layout in the input circuit should be such that high frequency ripple currents of each module is restricted to a loop formed by the input capacitors and the input terminals of the BusQor module. See Figure I for details on PCB layout. Contact SynQor application engineering for further assistance on PCB trace design. The current share performance of two paralleled modules is illustrated in the graph in Figure H. In this graph the percent deviation from ideal sharing (50%) is plotted for each module versus the total output load current at 385 Vin. Two BQ4H Bus Qor’s will share within 10% at higher loads. The current share accuracy is affected by changes in the gate drive timing as a function of load. The gate drive timing is adjusted as a function of load to better optimize the product efficiency over line and load (performance). 15.0% 10.0% 5.0% 0.0% -5.0% -10.0% Module 1 -15.0% Module 2 -20.0% 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 Total Load Current (A) Figure H: Typical current share performance of 2 paralleled modules BusQor module CM EMI filter (Not shown in Figure H) Bulk Cap BusQor module Input LC filters Figure I: Recommended physical implementation of two Bus Qor's in parallel. Product # BQ4H136HTx80 Phone 1-888-567-9596 www.synqor.com Doc.# 005-0006546 Rev. A 08/04/15 Page 13 Input: 230-400V Output: 13.6V Current: 80A Package: Half-brick Ordering Information Part Numbering System Ordering Information The part numbering system for SynQor’s dc-dc converters follows the format shown in the example below. The tables below show the valid model numbers and ordering options for converters in this product family. When ordering SynQor converters, please ensure that you use the complete 15 character part number consisting of the 12 character base part number and the additional characters for options. Add “-G” to the model number for 6/6 RoHS compliance. BQ 4 H 1 3 6 H T C 8 0 N R S - G 6/6 RoHS Options (see Ordering Information) Model Number Input Voltage BQ4H136HTx80xyz-G 230-400V Output Voltage 13.6V Max Output Current 80A Output Current Thermal Design Performance Level Package Size The following options must be included in place of the w x y z spaces in the model numbers listed above. Output Voltage Input Voltage Product Family Thermal Design The first 12 characters comprise the base part number and the last 3 characters indicate available options. The “-G” suffix indicates 6/6 RoHS compliance. Application Notes Options Description: w x y z Enable Logic Pin Style C - Encased with Threaded Baseplate D - Encased with N - Negative Non-Threaded Baseplate V - Encased with Flanged Baseplate R - 0.180" Feature Set S -Standard A variety of application notes and technical white papers can be downloaded in pdf format from our website. RoHS Compliance: The EU led RoHS (Restriction of Hazardous Substances) Directive bans the use of Lead, Cadmium, Hexavalent Chromium, Mercury, Polybrominated Biphenyls (PBB), and Polybrominated Diphenyl Ether (PBDE) in Electrical and Electronic Equipment. This SynQor product is 6/6 RoHS compliant. For more information please refer to SynQor’s RoHS addendum available at our RoHS Compliance / Lead Free Initiative web page or e-mail us at [email protected]. Not all combinations make valid part numbers, please contact SynQor for availability. Contact SynQor for further information and to order: PATENTS Phone: Toll Free: Fax: E-mail: Web: Address: Product # BQ4H136HTx80 978-849-0600 888-567-9596 978-849-0602 [email protected] www.synqor.com 155 Swanson Road Boxborough, MA 01719 USA Phone 1-888-567-9596 SynQor holds numerous U.S. patents, one or more of which apply to most of its power converter 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: 5,999,417 6,222,742 6,545,890 6,594,159 6,731,520 6,894,468 6,896,526 6,927,987 7,050,309 7,072,190 7,085,146 7,119,524 7,269,034 7,272,021 7,272,023 7,558,083 7,564,702 7,765,687 7,787,261 8,023,290 8,149,597 8,493,751 8,644,027 WARRANTY SynQor offers a three (3) year limited warranty. Complete warranty information is listed on our website or is available upon request from SynQor. www.synqor.com Doc.# 005-0006546 Rev. A 08/04/15 Page 14