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ADDC02828SA bảng dữ liệu(PDF) 2 Page - Analog Devices |
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2 / 16 page ADDC02828SA–SPECIFICATIONS ELECTRICAL CHARACTERISTICS Case Test ADDC02828SA Parameter Temp Level Conditions Min Typ Max Units INPUT CHARACTERISTICS Steady State Operating Input Voltage Range 1 Full VI IO = 0.36 A to 3.6 A 18 28 40 V Abnormal Operating Input Voltage Range (Per MIL-STD-704D) 1 Full VI IO = 0.36 A to 2.9 A 16 50 V Input Overvoltage Shutdown +25 °C I 50 52.5 55 V No Load Input Current +25 °C VI 85 100 mA Disabled Input Current +25 °CVI 1 5 mA OUTPUT CHARACTERISTICS2, 3 Output Voltage (VO) +25 °CI IO = 0.36 A to 3.6 A, VIN = 18 V to 40 V dc 27.44 28.00 28.56 V Full VI IO = 0.36 A to 3.6 A, VIN = 18 V to 40 V dc 26.88 29.12 V Full VI IO = 0.36 A to 2.9 A, VIN = 16 V to 50 V dc 26.88 29.12 V Line Regulation +25 °CVI IO = 3.6 A, VIN = 18 V to 40 V dc 10 60 mV Load Regulation +25 °CVI VIN = 28 V dc, IO = 0.36 A to 3.6 A 15 45 mV Output Ripple/Noise4 +25 °CI IO = 3.6 A, 5 kHz – 2 MHz BW 50 100 mV p-p Output Current (IO) Full VI VIN = 18 V to 40 V dc 0.36 3.6 A Output Overvoltage Protection +25 °CV IO = 3.6 A, Open Remote Sense Connection 125 % VO Nom Output Current Limit +25 °CV VO = 90% VOUT Nom 130 % IO max Output Short Circuit Current +25 °CI 11 A ISOLATION CHARACTERISTICS Isolation Resistance +25 °C I Input to Output or Any Pin to Case at 500 V dc 100 M Ω DYNAMIC CHARACTERISTICS 4 Maximum Output Voltage Deviation Due to Step Change in Load +25 °CI IO = 1.8 A to 3.6 A or 3.6 A to 1.8 A, di/dt = 0.5 A/µs 1.8 V Response Time Due to Step Change in Load +25 °CI IO = 1.8 A to 3.6 A or 3.6 A to 1.8 A, di/dt = 0.5 A/µs 150 µs Time for VOUT to Return within 2% of Final Value Soft Start Turn-On Time 5 +25 °CI IO = 3.6 A, From Inhibit High to Status High 15 20 ms THERMAL CHARACTERISTICS Efficiency +25 °CI IO = 2.2 A 81 85 % Full VI IO = 2.2 A 80 % +25 °CI IO = 3.6 A 81 85 % Full VI IO = 3.6 A 80 % Hottest Junction Temperature 6 +90 °CV IO = 3.6 A 110 °C CONTROL CHARACTERISTICS Clock Frequency Full VI IO = 0.36 A 0.85 0.99 MHz ADJUST (Pin 3) V ADJ +25 °C I 5.5 5.6 5.7 V STATUS (Pin 4) VOH +25 °CI IOH = 400 µA 2.4 4.0 V VOL +25 °CI IOL = 1 mA 0.15 0.7 V VAUX (Pin 5) VO (nom) +25 °CI IAUX = 5 mA, Load Current = 3.6 A 12.85 13.1 13.35 V INHIBIT (Pin 6) VIL +25 °CI 0.5 V IIL +25 °CI VIL = 0.5 V 1.2 mA VI (Open Circuit) +25 °CI 15 V SYNC (Pin 7) 7 VIH +25 °C I 4.0 V IIH +25 °CI VIH = 7.0 V 150 µA ISHARE (Pin 8) +25 °CI IO = 3.6 A 2.70 2.80 2.90 V TEMP (Pin 9) +25 °C V 3.90 V NOTES 150 V dc upper limit rated for transient condition of up to 50 ms. 16 V dc lower limit rated for continuous operation during emergency condition. Steady state and abnormal input voltage range require source impedance sufficient to ensure input stability at low line. See sections entitled System Instability Considerations and Input Voltage Range. 2Measured at the remote sense points. 3Unit regulates output voltage to zero load. 4C LOAD = 0. 5Output is fully loaded into a constant resistive load. 6Refer to Thermal Characteristics section for more information. 7Unit has internal pull-down; refer to section entitled Pin 7 (SYNC). Specifications subject to change without notice. REV. 0 –2– (TC = +25 C, VIN = 28 V dc 0.5 V dc, unless otherwise noted; full temperature range is –55 C to +90 C; all temperatures are case and TC is the temperature measured at the center of the package bottom.) |
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