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BQ55090QTA27PKS-G Datasheet(PDF) 3 Page - SynQor Worldwide Headquarters |
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BQ55090QTA27PKS-G Datasheet(HTML) 3 Page - SynQor Worldwide Headquarters |
3 / 14 page Product # BQ55090QTA27 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2BQ559J Rev. C 04/02/09 Page 3 Input: Output: Current: Package: 36-55 V 9.6 V 27A Quarter-brick Technical Specification BQ55 FAMILY ELECTRICAL CHARACTERISTICS Ta = 25 °C, airflow rate = 300 LFM, Vin = 48 V dc 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. Parameter Min. Typ. Max. Units Notes & Conditions ABSOLUTE MAXIMUM RATINGS Input Voltage Non-Operating 0 60 V Continuous Operating 36 48 55 V Continuous Operating Transient Protection N/A V 100 ms transient, square wave Isolation Voltage Input to Output 2000 V 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 36 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 V Turn-On Voltage Threshold 59.2 V Turn-Off Voltage Threshold 56.9 V Maximum Input Current 8.5 A No-Load Input Current 110 mA Disabled Input Current 15.0 30.0 mA Input Reflected-Ripple Current 10 20 mA RMS through 10µH inductor Input Terminal-Ripple Current 140 mA RMS, full load Recommended Input Fuse (see Note 1) 20 A Fast blow external fuse recommended Recommended External Input Capacitance 47 µF Typical ESR 0.1-0.2 Ω Input Filter Component Values (C\L\C) 1\6.6 µH\µF Internal values; see Figure E OUTPUT CHARACTERISTICS Output Voltage Set Point 9.6 V Output Voltage Regulation Over Line 40\3.8 %\V Over Load 5.2\500 %\mV Over Temperature 2\200 %\mV Total Output Voltage Range 6.550 11.000 V Over sample, line, load, temperature & life Output Voltage Ripple and Noise 20 MHz bandwidth; see Note 2 Peak-to-Peak 50 90 mV Full load RMS 20 mV Full load Operating Output Current Range 0 36 A at 7.2 Vout, 36Vin; Subject to thermal derating Output DC Current-Limit Inception 48 A 36Vin, Output Voltage 10% Low Output DC Current-Limit Shutdown Voltage 5 V Back-Drive Current Limit while Disabled 10 mA Negative current drawn from output Maximum Output Capacitance 3,000 µF 9.6Vout at 27 A Resistive Load DYNAMIC CHARACTERISTICS Output Voltage during Load Current Transient Step Change in Output Current (0.1 A/µs) 200 mV 50% to 75% to 50% Iout max Settling Time 100 µs To within 1% Vout nom Turn-On Transient Turn-On Time (with 3mF output capacitance) 2 3 ms Full load, Vout=90% nom. Start-Up Inhibit Time 200 ms -40 °C to +125 °C; Figure F Output Voltage Overshoot 0 % 3 mF load capacitance |
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