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BQ50120QTA20NNS Datasheet(PDF) 3 Page - SynQor Worldwide Headquarters |
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BQ50120QTA20NNS Datasheet(HTML) 3 Page - SynQor Worldwide Headquarters |
3 / 12 page Product # BQ50120QTA20 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2BQ512J Rev. E 03/17/06 Page 3 Input: Input: Output: Output: Current: Current: PPackage: ackage: 42-53 V 42-53 V 12 V 12 V 20 A 20 A Quarter-brick Quarter-brick T Technical S echnical Specification pecification Parameter Min. Typ. Max. Units Notes & Conditions ABSOLUTE MAXIMUM RATINGS Input Voltage Non-Operating 60 V Continuous Operating 56 V Continuous Isolation Voltage (input to output) 2000 V Basic insulation, Pollution Degree 2 Operating Temperature -40 100 °C Storage Temperature -55 125 °C Voltage at ON/OFF input pin -2 12 V INPUT CHARACTERISTICS Operating Input Voltage Range 42 48 53 V Input Under-Voltage Lockout Turn-On Voltage Threshold 39.5 V Turn-Off Voltage Threshold 38.0 V Lockout Voltage Hysteresis 1.5 V Input Over-Voltage Shutdown Turn-Off Voltage Threshold 55.0 V Vin when unit will shut down Turn-On Voltage Threshold 54.0 V Vin when unit turns on after shutdown event Maximum Input Current 6.3 A 100% Load, 42 Vin No-Load Input Current 0.17 A Disabled Input Current 7.5 15 mA Inrush Current Transient Rating 0.01 A2sI2T rating of external fuse should be higher Input Reflected-Ripple Current 5 mA RMS through 10µH inductor; Figures 12 & 14 Input Terminal-Ripple Current 75 100 mA RMS, full load; Figures 12 & 13 Recommended Input Fuse1 12 A Fast blow external fuse recommended Input Filter Component Values (C\L\C) 1\1.5\2 µF\µH\µF Internal values Recommended External Input Capacitance 47 µF Typical ESR 0.1-0.2 Ω, see Figure 12 OUTPUT CHARACTERISTICS Output Voltage Set Point 12.00 V 48Vin, no load Output Voltage Regulation Over Line +10 \ 1.2 %\V Figure 4 Over Load +4.1 \ 500 %\mV Figure 4 Over Temperature +1.7 \ 200 %\mV Figure 4 Total Output Voltage Range 9.7 13.3 V Over sample, line, load, temperature & life Output Voltage Ripple and Noise2 20MHz bandwidth; Figures 12 & 15 Peak-to-Peak 30 60 mV Full Load, see Figures 12 & 15 RMS 15 20 mV Full Load, see Figures 12 & 15 Operating Output Current Range 0 20 A Subject to thermal derating; Figures 5 - 8 Output DC Current-Limit Inception 24.8 A Output Voltage 10% Low; Figure 16 Output DC Current-Limit Shutdown Voltage 8 V Current Share Accuracy (2 units paralleled) +10 % % of rated output current Back-Drive Current Limit while Disabled 10 mA Negative current drawn from output Maximum Output Capacitance 3,000 µF 12Vout at 20A Resistive Load DYNAMIC CHARACTERISTICS Output Voltage during Load Current Transient For a Step Change in Output Current (0.1A/µs) 200 mV 50% to 75% to 50% Iout max; Figure 11 Settling Time 100 µs To within 1% Vout nom Turn-On Transient Turn-On Time 500 µs Full load, Vout=90% nom.; Figures 9 & 10 Start-Up Inhibit Time 2 ms -40°C to +125°C; Figure E Output Voltage Overshoot 5 % 5,000 µF load capacitance, Iout = 0A EFFICIENCY 100% Load 96.5 % Figure 1 50% Load 96.3 % Figure 1 TEMPERATURE LIMITS FOR POWER DERATING CURVES Semiconductor Junction Temperature 125 °C Package rated to 150°C Board Temperature 125 °C UL rated max operating temp 130°C Transformer Temperature 125 °C See Figures 5 - 8 for derating curves ISOLATION CHARACTERISTICS Isolation Voltage (dielectric strength)3 2000 V Isolation Resistance 30 M Ω Isolation Capacitance4 470 pF BQ50120QTA20 ELECTRICAL CHARACTERISTICS TA=25°C, airflow rate=300 LFM, Vin=48Vdc unless otherwise noted; full operating temperature range is -40°C to +100°C ambient tem- perature with appropriate power derating. Specifications subject to change without notice. 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. |
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