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UCC25630-4DDBR Datasheet(PDF) 6 Page - Texas Instruments |
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UCC25630-4DDBR Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 72 page  6 UCC256304 SLUSD60 – OCTOBER 2017 www.ti.com Product Folder Links: UCC256304 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated (1) Not production tested. Specified by characterization. (2) NNot production tested. Specified by design. 6.5 Electrical Characteristics All voltages are with respect to GND, –40°C < TJ = TA < 125°C, VCC = 15 V, currents are positive into and negative out of the specified terminal, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY VOLTAGE VCCShort Below this threshold, use reduced start up current 0.5 0.6 0.7 V VCCReStartJfet Below this threshold, re-enable JFET. 10.2 10.5 10.8 V VCCStartSelf In self bias mode, gate starts switching above this level 25 26 28 V SUPPLY CURRENT ICCSleep Current drawn from VCC rail during burst off period VCC = 15V 475 565 700 µA ICCRun Current drawn from VCC Pin while gate is switching. Excluding Gate Current VCC = 15V, maximum dead time 1.75 2.2 2.65 mA REGULATED SUPPLY VRVCC Regulated supply voltage VCC = 15V 11.60 12 12.40 V VCC = 13V 11.2 11.8 12.25 V VRVCCUVLO RVCC under voltage lock out voltage (1) 7 V HIGH VOLTAGE STARTUP IHVLow Reduced startup pin current 0.28 0.41 0.54 mA IHVHigh Full startup pin current 7.6 10.20 12.6 mA IHVLeak HV current source leakage current 1.40 3.37 7.55 µA IHVZCD Highest AC zero crossing detection test current 0.63 0.77 0.89 mA IXCAPDischarge X-cap discharge current 9.6 11.47 13.5 mA tXCAPZCD AC zero crossing detection window length for first three test current stage (1) 10 11.85 14 ms tXCAPZCDLast AC zero crossing detection window length for final test current stage (1) 43 46 52 ms tXCAPIdle AC zero crossing detection idle period length (1) 635 704 772 ms tXCAPDischarge Time for X-cap discharge current active (1) 327 358 390 ms BULK VOLTAGE SENSE VBLKStart Input voltage that allows LLC to start switching Voltage rising 1.01 1.04 1.08 V VBLKStop Input voltage that forces LLC operation to stop Voltage falling 0.83 0.87 0.93 V VBLKOVRise Input voltage that causes switching to stop Voltage rising 4.92 5.03 5.12 V VBLKOVFall Input voltage that causes switching to re-start Voltage falling 3.67 3.76 3.86 V FEEDBACK PIN RFBInternal Internal pull down resistor value 90.7 101.5 112.3 kΩ IFB FB internal current source 76.5 85.1 93.6 µA f-3dB Feedback chain -3dB cut off frequency (2) 1 MHz RESONANT CURRENT SENSE VISNS_OCP1 OCP1 threshold 3.97 4.03 4.07 V |
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