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BQ55090ETA27PKS Datasheet(PDF) 3 Page - SynQor Worldwide Headquarters |
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BQ55090ETA27PKS Datasheet(HTML) 3 Page - SynQor Worldwide Headquarters |
3 / 13 page Product # BQ55090ETA27 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2BE559C Rev. B 10/10/06 Page 3 Input: Input: Output: Output: Current: Current: PPackage: ackage: 35-55 V 35-55 V 9.6 V 9.6 V 27 A 27 A Eighth-brick Eighth-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 18 V INPUT CHARACTERISTICS Operating Input Voltage Range 35 48 55 V Input Under-Voltage Lockout Turn-On Voltage Threshold 34.3 V Turn-Off Voltage Threshold 32 V Lockout Voltage Hysteresis 2.4 V Input Over-Voltage Shutdown Turn-Off Voltage Threshold 59.2 V Turn-On Voltage Threshold 56.9 V Maximum Input Current 5.8 A 100% Load, 35 Vin No-Load Input Current 0.10 A Disabled Input Current 15 30 mA Inrush Current Transient Rating 0.1 A2s Input Reflected Ripple Current 3.8 7.0 mA RMS through 10µH inductor; Figures 12 & 14 Input Terminal Ripple Current 250 mA RMS, full load; Figures 13 Recommended Input Fuse 20 A Fast blow external fuse recommended Input Filter Component Values (L\C) 1.5\2.0 µH\µF Internal values Recommended External Input Capacitance 47 µF Typical ESR 0.1-0.2W, see Figure 12 OUTPUT CHARACTERISTICS Output Voltage Set Point 9.60 V 48Vin, no load Output Voltage Regulation Over Line 40/3.8 %\V Figure 4 Over Load 4.8/460 %\mV Figure 4 Over Temperature 2/200 %\mV Figure 4 Total Output Voltage Range 6.3 11.0 V Over sample, line, load, temperature & life Output Voltage Ripple and Noise1 20MHz bandwidth; Figure 12 & 15 Peak-to-Peak 100 120 mV Full Load; see Figures 12 & 15 RMS 20 40 mV Full Load; see Figures 12 & 15 Operating Output Current Range 0 27 A Subject to thermal derating; Figures 5 & 7 Output DC Current-Limit Inception 34 A Output Voltage 10% Low; Figure 16 Output DC Current-Limit Shutdown Voltage 0 V Current Share Accuracy (3 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 9.6Vout at 27A Resistive Load DYNAMIC CHARACTERISTICS Output Voltage during Load Current Transient For a Step Change in Output Current (0.1A/µs) 150 mV 50% to 75% to 50% Iout max; Figure 11 Settling Time 200 µs To within 1% Vout nom Turn-On Transient Turn-On Time 1 ms Full load, Vout=90% nom.; Figures 9 &10 Start-Up Inhibit Time 20 ms -40°C to +125°C Output Voltage Overshoot 0 % 2,500 µF load capacitance, Iout = 0A EFFICIENCY 100% Load 95.7 % Figures 1 &3 50% Load 96.1 % Figures 1 &3 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 & 7 for derating curves ISOLATION CHARACTERISTICS Isolation Voltage (dielectric strength) 2000 V Isolation Resistance 30 MW BQ55090ETA27 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: For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: support@synqor.com) |
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