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PI3749-00-EVAL1 Datasheet(PDF) 9 Page - Vicor Corporation |
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PI3749-00-EVAL1 Datasheet(HTML) 9 Page - Vicor Corporation |
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9 / 26 page  Cool-Power® ZVS Switching Regulators Rev 1.8 vicorpower.com Page 9 of 26 03/2017 800 927.9474 PI3749-x0 Electrical Characteristics (Cont.) Specifications apply for the conditions -40°C < TJ < 115°C, VIN = 16V - 34V, VOUT = 24V, LEXT = 480nH[4], external CIN = COUT = 20µF, unless otherwise noted. Parameter Symbol Conditions Min Typ Max Unit Soft Start and Tracking Function TRK Active Range Nominal 0 1.7 V TRK Disable Threshold 20 40 70 mV TRK Internal Capacitance 0.047 µF Soft Start Charge Current 30 50 70 µA Soft Start Discharge Current VTRK = 0.5V 8.5 mA Soft Start Time tSS Ext CSS = 0µF 1.6 ms Enable Enable High Threshold ENIH 0.9 1 1.1 V Enable Low Threshold ENIL 0.7 0.8 0.9 V Enable Threshold Hysteresis ENHYS 100 200 300 mV Enable Pin Bias Current VEN = 0V or VEN = 2V -50 µA Enable Pull-Up Voltage Floating 2.0 V Fault Restart Delay Time tFR_DLY 30 ms Digital Signals SYNCI Threshold Rising VDR = 5.1V 3.1 V SYNCI Threshold Falling VDR = 5.1V 2.2 V SYNCO High SYNCOOH VDR - 0.5 VDR V SYNCO Low SYNCOOL ISYNCOUT = 1mA 0.5 V PGD High Leakage PGDILH VPGD = VDR 10 µA PGD Output Low PGDOL IPGD = 4mA 0.4 V PGD EAIN Low Rise 1.41 1.45 1.48 V PGD EAIN Low Fall 1.36 1.41 1.46 V PGD EAIN Threshold Hysteresis 35 mV PGD EAIN High 1.94 2.04 2.14 V I2C Digital Signals (PI3749-20 only) I2C™ Address High Threshold VADRx-HI 3.872 4.59 V I2C Address Mid Threshold VADRx-MID 1.452 3.752 V I2C Address Low Threshold VADRx-LOW 0.51 1.072 V I2C Address Resistance, Within Mid Thresholds RADRx-MID Resistance to 2.5V, when ADRx pin voltage within VADRx_MID 10 V I2C Address Resistance, Outside Mid Thresholds RADRx-MID Resistance to 2.5V, when ADRx pin voltage outside range of VADRx_MID 200 V SCL, SDA In High VSER_IH 2.1 V SCL, SDA In Low VSER_IL 1.5 V SDA Out Low VSER_OL Sinking up to 3mA 0.4 V SCL, SDA Pull-Down Current ISER_I Weak pull-down current to SGND 10 V [4] See Inductor Pairing section. [5] Assured to meet performance specification by design, test correlation, characterization, and/or statistical process control. [6] Output current capability varies with input & output voltage. See performance curves in Figures 15 – 17. |
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