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BQ55090QTA27NRS-G Datasheet(PDF) 4 Page - SynQor Worldwide Headquarters |
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BQ55090QTA27NRS-G Datasheet(HTML) 4 Page - SynQor Worldwide Headquarters |
4 / 14 page Product # BQ55090QTA27 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2BQ559J Rev. C 04/02/09 Page 4 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 ISOLATION CHARACTERISTICS Isolation Voltage (dielectric strength) 2000 V See Absolute Maximum Ratings Isolation Resistance 30 MΩ Isolation Capacitance (input to output) 470 pF See Note 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 Maximum Baseplate Temperature, Tb N/A °C EFFICIENCY 100% Load 96 % 50% Load 96 % FEATURE CHARACTERISTICS Switching Frequency 131 155 178 kHz ON/OFF Control (Option P) Off-State Voltage -1 0.8 V On-State Voltage 2.4 18 V ON/OFF Controll (Option N) Application notes Figures A & B Pull-Up Voltage 2.4 18 V Pull-Up Resistance -1 0.8 V Output Over-Voltage Protection 7.5 V Over full temp range; no load Over-Temperature Shutdown OTP Trip Point 140 150 °C Average PCB Temperature Over-Temperature Shutdown Restart Hysteresis 10 °C RELIABILITY CHARACTERISTICS Calculated MTBF (Telcordia) TR-NWT-000332 1 106 Hrs. 80% load, 200LFM, 40 °C Ta Calculated MTBF (MIL-217) MIL-HDBK-217F TBD 106 Hrs. 80% load, 200LFM, 40 °C Ta Field Demonstrated MTBF 106 Hrs. See our website for details 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 Note 2: For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: support@synqor.com) Note 3: Isolation capacitance can be added external to the module. |
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