BQ50120QTA20NRC

Technical S pecification BQ50120QTA20 42-53V Input 12V Output 240Watt Power 2000Vdc Isolation Quar ter-brick DC Bus Conver ter T he Bu s Qo r ™ B Q 5 0 1 2 0 Q T A 2 0 b u s c o n v e r t e r i s a n e x t - g e n e ra tion , bo ar d -mo un ta bl e, is ol ated , fixe d s witchi ng fr eq uen c y d c/d c con verter tha t u se s s y nch r on ou s r ectifi catio n to a ch ieve extr emel y h igh con vers ion effic ien cy. Th e p ower d is sip a t ed b y t he con v er te r is so l ow th a t a h eat s in k is no t r eq ui red , whic h s av es c os t, wei ght , hei ght , an d a p pl ica t ion e ffor t. T he Bu sQ or ser ies p r ov id es a n iso la t ed s t ep d own vol tage fr om 48V to a 1 2V inter med ia te b us with n o regu l a tio n i n a s ta n da r d “ q ua rt er - br ick ” mod ul e. B us Q or con v er t ers a r e id ea l fo r cu st om ers wh o n eed mu l tip l e ou t p ut s a n d wish to bu il d o r bu y p oin t of loa d co nver ter s to wor k with a 12V rail. RoHS Compliant (see page 12 ). Bus Conver ter Operational Features • Ultra-high efficiency, >96% at full rated load current • Delivers up to 20 amps (240 Watts) of output current (power) with minimal derating - no heatsink required • Input voltage range: 42V – 53V • Fixed frequency switching provides predictable EMI performance BQ50120QTA20 Module Pr otection Features • Input under-voltage lockout and over-voltage shutdown protects against abnormal input voltages • Output current limit and short circuit protection • Output over-voltage protection • Thermal shutdown Mechanical Features • Industry standard quarter-brick bus converter pin-out • Industry standard size: 1.45” x 2.3” (36.8x58.4mm) • Total height only 0.43” (10.9mm), permits better airflow and smaller card pitch • Total weight: 1.5 oz. (42 grams) • Flanged pins designed to permit surface mount soldering (can avoid wave solder) using FPiP technique Contr ol Features • On/Off control referenced to input side • Current sharing allowed without the use of any external circuitry. • 2000V, 30 MΩ input-to-output isolation • UL/cUL 60950-1 recognized (US & Canada), basic insulation rating • TUV certified to EN60950-1 • Meets 72/23/EEC and 93/68/EEC directives • Meets UL94V-0 flammability requirements Safety Features Product # BQ50120QTA20 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2BQ512J Rev. E 03/17/06 Page 1 Technical Specification MECHANICAL DIAGRAM 2.30 (58.4) Input: Output: Current: Package: 42-53 V 12 V 20 A Quarter-brick 0.14 (3.6) 2.00 (50.8) 0.43 (10.8) Top View 0.600 (15.24) 1.45 (36.8) 0.600 (15.24) 0.300 (7.62) Side View Bottom side Clearance See Note 9 0.43 (10.9) 0.060+/-0.030 (1.52+/-0.76) Lowest Component Load Board Flanged Pin See Note 10 0.145 (3.68) See Note 3 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 (6/6 RoHS) - Matte Tin over Nickel plate Finish (5/6 RoHS) - 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: 1.5 oz. (42 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 (allowing to avoid the wave soldering process) through the use of the flanged pin-in-paste technique. Product # BQ50120QTA20 Phone 1-888-567-9596 PIN DESIGNATIONS Pin No. 1 2 3 4 5 Name Vin(+) ON/OFF Vin(-) Vout(-) Vout(+) Function Input Positive (42V - 53V) Logic control input to turn converter on and off. Input Negative Output Negative Output Positive www.synqor.com Doc.# 005-2BQ512J Rev. E 03/17/06 Page 2 Technical Specification BQ50120QTA20 ELECTRICAL CHARACTERISTICS Parameter ABSOLUTE MAXIMUM RATINGS Input: Output: Current: Package: 42-53 V 12 V 20 A Quarter-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 12 48 39.5 38.0 1.5 55.0 54.0 7.5 5 75 1\1.5\2 47 12.00 +10 \ 1.2 +4.1 \ 500 +1.7 \ 200 30 15 24.8 8 +10 10 53 Units V V V °C °C V V V V V V V A A mA A 2s mA mA A µF\µH\µF µF V %\V %\mV %\mV V mV mV A A V % mA µF mV µs µs ms % % % 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 -40 -55 -2 42 INPUT CHARACTERISTICS 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 Fuse1 Input Filter Component Values (C\L\C) Recommended External Input Capacitance Output Voltage Set Point Output Voltage Regulation Over Line Over Load Over Temperature Total Output Voltage Range Output Voltage Ripple and Noise2 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 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 100% Load 50% Load Semiconductor Junction Temperature Board Temperature Transformer Temperature 6.3 0.17 15 0.01 100 12 Vin when unit will shut down Vin when unit turns on after shutdown event 100% Load, 42 Vin I2T rating of external fuse should be higher 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 20A 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; Figure E 5,000 µF load capacitance, Iout = 0A Figure 1 Figure 1 Package rated to 150°C UL rated max operating temp 130°C See Figures 5 - 8 for derating curves OUTPUT CHARACTERISTICS 9.7 13.3 60 20 20 0 3,000 DYNAMIC CHARACTERISTICS 200 100 500 2 5 96.5 96.3 125 125 125 2000 30 EFFICIENCY TEMPERATURE LIMITS FOR POWER DERATING CURVES °C °C °C V MΩ pF ISOLATION CHARACTERISTICS Isolation Voltage (dielectric strength)3 Isolation Resistance Isolation Capacitance4 470 Note 1: UL's product certification tests were carried out using 20A 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 until fuse blows. Note 2: For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: support@synqor.com) Note 3: For modules with isolation voltage rating of 2250V, order the Feature Set option C. See last page for ordering details. Note 4: Higher values of isolation capacitance can be added external to the module. Product # BQ50120QTA20 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2BQ512J Rev. E 03/17/06 Page 3 Technical Specification ELECTRICAL CHARACTERISTICS (Continued) Parameter P FEATURE CHARACTERISTICS Input: Output: Current: Package: 42-53 V 12 V 20 A Quarter-brick Min. 127.5 -1.0 2.4 2.4 -1.0 Typ. 150 Max. 172 0.8 18 18 0.8 Units kHz V V V V V °C °C Notes & Conditions Figure B Figure B Over full temp range; no load Average PCB Temperature See App Note: Output Load Current Calc. Switching Frequency ON/OFF Control (Option P) Off-State Voltage On-State Voltage ON/OFF Control (Option N) Off-State Voltage On-State Voltage Output Over-Voltage Protection Over-Temperature Shutdown Over-Temperature Shutdown Restart Hysteresis Load Current Scale Factor Calculated MTBF (Telcordia) Calculated MTBF (MIL-217) Field Demonstrated MTBF 13.75 120 10 800 2.7 2.0 RELIABILITY CHARACTERISTICS 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 60950-1 EN60950-1 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 15 pins 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 for information on available options. PATENTS SynQor is protected under various patents, including but not limited to U.S. Patent numbers 5,999,417; 6,222,742 B1; 6,594,159 B2; 6,545,890 B2. Product # BQ50120QTA20 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2BQ512J Rev. E 03/17/06 Page 4 Technical Specification 100 98 10 9 Input: Output: Current: Package: 42-53 V 12 V 20 A Quarter-brick Efficiency (%) 94 92 90 88 86 84 82 80 0 2 4 6 8 10 12 14 16 18 20 42 Vin 48 Vin 52 Vin Power Dissipation (W) 96 8 7 6 5 4 3 2 1 0 0 2 4 6 8 10 12 14 16 42 Vin 48 Vin 52 Vin 18 20 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. 98 15 14 97 Output Voltage (V) 13 12 11 10 42Vin 9 8 0 2 4 6 8 10 12 14 16 18 20 48Vin 52Vin Efficiency (%) 96 95 94 93 25 C 40 C 55 C 0 100 200 300 400 500 92 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). 20 18 16 14 Figure 4: Output voltage regulation vs. load current for minimum, nominal, and maximum input voltage at 25°C. Iout (A) 12 10 8 6 4 2 0 0 25 40 55 70 85 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 0 LFM (0 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 0 LFM through 400 LFM with air flowing from pin 3 to pin 1 (nominal input voltage). Product # BQ50120QTA20 Phone 1-888-567-9596 Figure 6: Thermal plot of converter at 20 amp load current (240W) 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.# 005-2BQ512J Rev. E 03/17/06 Page 5 www.synqor.com Technical Specification 20 18 16 14 Input: Output: Current: Package: 42-53 V 12 V 20 A Quarter-brick Iout (A) 12 10 8 6 4 2 0 0 25 40 55 70 85 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 0 LFM (0 m/s) Ambient Air Temperature (oC) Semiconductor junction temperature is within 1°C of surface temperature Figure 7: Maximum output power derating curves vs. ambient air temperature for airflow rates of 0 LFM through 400 LFM with air flowing from input to output (nominal input voltage). Figure 8: Thermal plot of converter at 20 amp load current (240W) with 55°C air flowing at the rate of 200 LFM. Air is flowing across the converter from input to output (nominal input voltage). Figure 9: Turn-on transient at full load (resistive load) (2 ms/div). Ch 1: Vout (5V/div); Ch 2: ON/OFF Pin (5V/div). Figure 10: Turn-on transient at zero load (2 ms/div). Ch 1: Vout (5V/div); Ch 2: ON/OFF Pin (5V/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,