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ISL6227HRZ Datasheet(PDF) 4 Page - Intersil Corporation |
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ISL6227HRZ Datasheet(HTML) 4 Page - Intersil Corporation |
4 / 28 page 4 FN9094.4 December 21, 2006 PWM CONVERTERS Load Regulation 0.0mA < IVOUT1 < 5.0A; 5.0V < VBATT < 24.0V -2.0 - +2.0 % VSEN Pin Bias Current IVSEN By design - 80 - nA Minimum Duty Cycle Dmin -4- % Maximum Duty Cycle Dmax -87- % VOUT Pin Input Impedance IVOUT VOUT = 5V - 134 - k Ω Undervoltage Shut-Down Level VUVL Fraction of the set point; ~2 μs noise filter 70 75 80 % Overvoltage Protection VOVP1 Fraction of the set point; ~2 μs noise filter 110 115 - % GATE DRIVERS Upper Drive Pull-Up Resistance R2UGPUP VCC = 5V - 4 8 Ω Upper Drive Pull-Down Resistance R2UGPDN VCC = 5V - 2.3 4 Ω Lower Drive Pull-Up Resistance R2LGPUP VCC = 5V - 4 8 Ω Lower Drive Pull-Down Resistance R2LGPDN VCC = 5V - 1.1 3 Ω POWER GOOD AND CONTROL FUNCTIONS Power Good Lower Threshold VPG- Fraction of the set point; ~3 μs noise filter 84 89 92 % Power Good Higher Threshold VPG+ Fraction of the set point; ~3 μs noise filter. 110 115 120 % PGOODx Leakage Current IPGLKG VPULLUP = 5.5V - - 1 μA PGOODx Voltage Low VPGOOD IPGOOD = -4mA - 0.5 1 V ISEN Sourcing Current By design - - 260 μA OCSET Sourcing Current Range 2- 20 μA EN - Low (Off) -- 0.8 V EN - High (On) 2.0 - - V Continuous-Conduction-Mode(CCM) Enforced (HYS Operation Inhibited) VOUTX pulled low - - 0.1 V Automatic CCM/HYS Operation Enabled VOUTX connected to the output 0.9 - - V DDR - Low (Off) -- 0.8 V DDR - High (On) 3- - V DDR REF Output Voltage VDDREF DDR = 1, IREF = 0...10mA 0.99* VOC2 VOC2 1.01* VOC2 V DDR REF Output Current IDDREF DDR = 1. Guaranteed by design. - 10 12 m Α Electrical Specifications Recommended Operating Conditions, Unless Otherwise Noted. (Continued) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS ISL6227 |
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