BQ55120ETL16PRS

Technical S pecification BQ55120ETL16 35-55V Input I nput 12V Output 192Watt Power 2000Vdc Isolation E ighth-brick Eighth-brick DC Bus Conver ter The BusQor™ BQ55120ETL16 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 power dissipated by the converter is so low that a heatsink is not required, which saves cost, weight, height, and application effort. The BusQor series provides an isolated step down voltage from 35-55V to a 12V intermediate bus with no regulation in a standard “eighth-brick” module. BusQor converters are ideal for creating the mid-bus voltage required to drive point-of-load (non-isolated) converters in intermediate bus architectures. RoHS com pliant (see page 12 ). Operational Features • Ultra-high efficiency, >95% at full rated load current • Delivers up to 16 amps of output current (192W) with minimal derating - no heatsink required • Input voltage range: 35V – 55V provides 12V bus for distributed power architectures • Fixed frequency switching provides predictable EMI performance B us Bus Conver ter C onver BQ55120ETL16 Module Pr otection Features • Input under-voltage lockout and over-voltage shutdown protects against abnormal input voltages • Output current limit and short circuit protection • Thermal shutdown Mechanical Features • Industry standard eighth-brick bus converter pin-out • Industry standard size: 0.90” x 2.3” (22.9x58.4mm) • Total height only 0.320” (8.13mm), permits better airflow and smaller card pitch • Total weight: 0.7 oz. (20 grams) • Flanged pins designed to permit surface mount soldering (avoid wave solder) using FPiP technique Contr ol Features • On/Off control referenced to input side (positive and negative logic options available) • 2000V, 30 MΩ input-to-output isolation • UL/cUL 60950 recognized (US & Canada), basic insulation rating • TUV certified to EN60950 • Meets 72/23/EEC and 93/68/EEC directives • Meets UL94V-0 flammability requirements Safety Features Product # BQ55120ETL16 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2BE552B Rev. A 03/16/06 Page 1 Technical Specification MECHANICAL DIAGRAM 2.00 (50.8) Input: Output: Current: Package: 35-55 V 12 V 1 6 A (192W) 16 ( 192W) Eighth-brick 2.30 (58.4) 0.14 (3.6) Top View 0.15 (3.8) 1 2 3 0.600 (15.24) 5 0.90 (22.9) 4 0.300 (7.62) 0.025 +0.013 (0.64 +0.33) Side View Bottom side Clearance See Note 9 0.145 (3.68) See Note 3 Lowest Component Load Board Flanged Pin See Note 10 0.320 +0.015 (8.13 +0.38) Overall height NOTES 1) Pins 1-3 are 0.040” (1.02mm) diameter with 0.080” (2.03 mm) diameter standoff shoulders. 2) Pins 4 and 5 are 0.062” (1.57 mm) diameter with 0.100” (2.54 mm) diameter standoff shoulders. 3) Other pin extension lengths available. Recommended pin length is 0.03” (0.76mm) greater than the PCB thickness. 4) All Pins: Material - Copper Alloy Finish - Tin/Lead over Nickel plate 5) Undimensioned components are shown for visual reference only. 6) All dimensions in inches (mm) Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm) 7) Weight: 0.7 oz. (20 g) typical 8) Workmanship: Meets or exceeds IPC-A-610C Class II 9) UL/TUV standards require a clearance of 0.04” (1.02mm) around primary areas of the module. Refer to section on Keep Out Areas under Application Considerations for details. 10) The flanged pins are designed to permit surface mount soldering (avoiding the wave soldering process) through the use of the flanged pin-in-paste technique. PIN DESIGNATIONS Pin No. 1 2 3 4 5 Name Vin(+) ON/OFF Vin(-) Vout(-) Vout(+) Function Input Positive (35V - 55V) Logic control input to turn converter on and off. Input Negative Output Negative Output Positive Product # BQ55120ETL16 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2BE552B Rev. A 03/16/06 Page 2 Technical Specification BQ55120ETL16 ELECTRICAL CHARACTERISTICS Parameter ABSOLUTE MAXIMUM RATINGS Input: Output: Current: Package: 35-55 V 12 V 1 6 A (192W) 16 ( 192W) Eighth-brick TA=25°C, airflow rate=300 LFM, Vin=48Vdc unless otherwise noted; full operating temperature range is -40°C to +100°C ambient temperature with appropriate power derating. Specifications subject to change without notice. Min. Typ. Max. 60 56 2000 100 125 18 48 32.0 30.5 1.5 59.0 58.0 7 5 50 1.5\2.0 47 12.00 +20 \ 2.4 +4.1 \ 500 +1.7 \ 200 8.0 100 20 0 25 Vin / 8 +10 10 3,000 200 200 9 3 0 95.3 95.5 125 125 125 2000 30 13.8 150 40 16 4.7 0.1 15 0.1 100 12 55 Units V V V °C °C V V V V V V V A A mA A 2s mA mA A µH\µF µF V %\V %\mV %\mV V mV mV A A V % mA µF mV µs ms ms % % % °C °C °C V MΩ Notes & Conditions Continuous Continuous Basic insulation, Pollution Degree 2 Input Voltage Non-Operating Operating Isolation Voltage (input to output) Operating Temperature Storage Temperature Voltage at ON/OFF input pin INPUT CHARACTERISTICS -40 -55 -2 35 Operating Input Voltage Range Input Under-Voltage Lockout Turn-On Voltage Threshold Turn-Off Voltage Threshold Lockout Voltage Hysteresis Input Over-Voltage Shutdown Turn-Off Voltage Threshold Turn-On Voltage Threshold Maximum Input Current No-Load Input Current Disabled Input Current Inrush Current Transient Rating Input Reflected Ripple Current Input Terminal Ripple Current Recommended Input Fuse Input Filter Component Values (L\C) Recommended External Input Capacitance OUTPUT CHARACTERISTICS 100% Load, 35Vin RMS through 10µH inductor; Figures 12 & 14 RMS, full load; Figures 12 & 13 Fast blow external fuse recommended Internal values Typical ESR 0.1-0.2Ω, see Figure 12 48Vin, no load Figure 4 Figure 4 Figure 4 Over sample, line, load, temperature & life 20MHz bandwidth; Figures 12 & 15 Full Load, see Figures 12 & 15 Full Load, see Figures 12 & 15 Subject to thermal derating; Figures 5 - 8 Output Voltage 10% Low; Figure 16 % of rated output current Negative current drawn from output 12Vout at 16A Resistive Load 50% to 75% to 50% Iout max; Figure 11 To within 1% Vout nom Full load, Vout=90% nom.; Figures 9 & 10 -40°C to +125°C 2,500 µF load capacitance, Iout = 0A Figures 1 - 3 Figures 1 - 3 Package rated to 150°C UL rated max operating temp 130°C See Figures 5 - 8 for derating curves Output Voltage Set Point Output Voltage Regulation Over Line Over Load Over Temperature Total Output Voltage Range Output Voltage Ripple and Noise1 Peak-to-Peak RMS Operating Output Current Range Output DC Current-Limit Inception Output DC Current-Limit Shutdown Voltage Current Share Accuracy (2 units paralleled) Back-Drive Current Limit while Disabled Maximum Output Capacitance DYNAMIC CHARACTERISTICS Output Voltage during Load Current Transient For a Step Change in Output Current (0.1A/µs) Settling Time Turn-On Transient Turn-On Time Start-Up Inhibit Time Output Voltage Overshoot EFFICIENCY 100% Load 50% Load TEMPERATURE LIMITS FOR POWER DERATING CURVES Semiconductor Junction Temperature Board Temperature Transformer Temperature ISOLATION CHARACTERISTICS Isolation Voltage (dielectric strength) Isolation Resistance Note 1: For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: support@synqor.com). Product # BQ55120ETL16 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2BE552B Rev. A 03/16/06 Page 3 Technical Specification ELECTRICAL CHARACTERISTICS (Continued) Parameter FEATURE CHARACTERISTICS Input: Output: Current: Package: 35-55 V 12 V 1 6 A (192W) 16 ( 192W) Eighth-brick Min. 165 -1.0 2.4 2.4 -1.0 Typ. 190 Max. 215 0.8 18 18 0.8 Units kHz V V V V V kΩ °C °C Notes & Conditions Switching Frequency ON/OFF Control (Option P) Off-State Voltage On-State Voltage ON/OFF Control (Option N) Off-State Voltage On-State Voltage ON/OFF Control (Either Option) Pull-Up Voltage Pull-Up Resistance Over-Temperature Shutdown Over-Temperature Shutdown Restart Hysteresis Load Current Scale Factor RELIABILITY CHARACTERISTICS Figures A & B Average PCB Temperature See App Note: Output Load Current Calc. 10 30 140 10 1333 2.81 0.91 150 Calculated MTBF (Telcordia) Calculated MTBF (MIL-217) Field Demonstrated MTBF 106 Hrs. TR-NWT-000332; 100% load,300LFM, 40oC Ta 106 Hrs. MIL-HDBK-217F; 100% load, 300LFM, 40oC Ta 106 Hrs. See our website for details STANDARDS COMPLIANCE Parameter P STANDARDS COMPLIANCE Notes File # E194341, Basic insulation & pollution degree 2 Certified by TUV Test on entire assembly; board & plastic components UL94V-0 compliant ESD test, 8kV - NP, 15kV air - NP (Normal Performance) Section 7 - electrical safety, Section 9 - bonding/grounding UL/cUL 60950 EN60950 72/23/EEC 93/68/EEC Needle Flame Test (IEC 695-2-2) IEC 61000-4-2 GR-1089-CORE • 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. QUALIFICATION TESTING Parameter P QUALIFICATION TESTING # Units 32 5 5 10 5 5 5 3 Test Conditions 10-55Hz sweep, 0.060” total excursion,1 min./sweep, 120 sweeps for 3 axis Life Test Vibration Mechanical Shock Temperature Cycling Power/Thermal Cycling Design Marginality Humidity Solderability 95% rated Vin and load, units at derating point, 1000 hours 100g minimum, 2 drops in x and y axis, 1 drop in z axis -40°C to 100°C, unit temp. ramp 15°C/min., 500 cycles Toperating = 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, 85% RH, 1000 hours, 2 minutes on and 6 hours off MIL-STD-883, method 2003 • Extensive characterization testing of all SynQor products and manufacturing processes is performed to ensure that we supply robust, reliable product. Contact the factory for official product family qualification documents. OPTIONS SynQor provides various options for Logic Sense, Pin Length and Feature Set for this family of DC/DC converters. Please consult the last page of this specification sheet for information on available options. Product # BQ55120ETL16 Phone 1-888-567-9596 PATENTS SynQor is protected under various patents, including but not limited to U.S. Patent # 5,999,417; 6,222,742 B1; 6,594,159 B2; 6,545,890 B2. www.synqor.com Doc.# 005-2BE552B Rev. A 03/16/06 Page 4 Technical Specification 100 11 10 95 9 Input: Output: Current: Package: 35-55 V 12 V 1 6 A (192W) 16 ( 192W) Eighth-brick Power Dissipation (W) 35 Vin 8 7 6 5 4 3 2 1 0 35 Vin 48 Vin 55 Vin Efficiency (%) 90 85 80 75 48 Vin 55 Vin 70 0 2 4 6 8 10 12 14 16 0 2 4 6 8 10 12 14 16 Load Current (A) Load Current (A) Figure 1: Efficiency at nominal output voltage vs. load current for minimum, nominal, and maximum input voltage at 25°C. Figure 2: Power dissipation at nominal output voltage vs. load current for minimum, nominal, and maximum input voltage at 25°C. 97 14 13 96 12 Output Voltage (V) 25 C 40 C 55 C Efficiency (%) 11 10 9 8 7 6 35V 48V 55V 95 94 93 100 200 300 400 0 2 4 6 8 10 12 14 16 Air Flow (LFM) Load Current (A) Figure 3: 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). 18 16 14 12 Figure 4: Output voltage regulation vs. load current for minimum, nominal, and maximum input voltage at 25°C. Iout (A) 10 8 6 400 LFM (2.0 m/s) 4 2 0 0 25 40 55 70 85 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) Ambient Air Temperature (ºC) Semiconductor junction temperature is within 1°C of surface temperature Figure 5: Maximum output power derating curves vs. ambient air temperature for airflow rates of 100 LFM through 400 LFM with air flowing from pin 3 to pin 1 (nominal input voltage). Product # BQ55120ETL16 Phone 1-888-567-9596 Figure 6: Thermal plot of converter at 16 amp load current (192W) with 55°C air flowing at the rate of 200 LFM. Air is flowing across the converter from pin 3 to pin 1 (nominal input voltage). Doc.# 005-2BE552B Rev. A 03/16/06 Page 5 www.synqor.com Technical Specification 18 16 Input: Output: Current: Package: 35-55 V 12 V 1 6 A (192W) 16 ( 192W) Eighth-brick Semiconductor junction temperature is within 1°C of surface temperature 14 12 Iout (A) 10 8 6 400 LFM (2.0 m/s) 4 2 0 0 25 40 55 70 85 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) Ambient Air Temperature (ºC) Figure 7: Maximum output power derating curves vs. ambient air temperature for airflow rates of 100 LFM through 400 LFM with air flowing from output to input (nominal input voltage). Figure 8: Thermal plot of converter at 16 amp load current (192W) with 55°C air flowing at the rate of 200 LFM. Air is flowing across the converter from output to input (nominal input voltage). Figure 9: Turn-on transient at half load (resistive load) and 3mF output capacitance (2.0ms/div). Input voltage pre-applied. Channel 1: Vout (2V/div). Channel 2: ON/OFF input (2V/div). Figure 10: Turn-on transient at zero load and 3mF output capacitance (2.0ms/div). Input voltage pre-applied. Channel 1: Vout (2V/div). Channel 2: ON/OFF input (2V/div). See Fig. 14 source impedance 10 µH See Fig. 13 See Fig. 15 iS VSOURCE iC DC/DC Converter 1 µF VOUT ceramic 450mΩ ESR capacitor tantalum capacitor electrolytic capacitor 47 µF,