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ISL6558CRZA Datasheet(PDF) 7 Page - Intersil Corporation |
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ISL6558CRZA Datasheet(HTML) 7 Page - Intersil Corporation |
7 / 16 page 7 FN9027.12 June 21, 2005 POWER GOOD MONITOR Undervoltage Threshold VSEN Rising - 0.92 - VREF Undervoltage Threshold VSEN Falling - 0.90 - VREF PGOOD Low Output Voltage IPGOOD = 4mA - 0.18 0.4 V PROTECTION Overvoltage Threshold VSEN Rising, ISL6558CB, ISL6558CR, TA = 0°C to 70°C 1.12 1.15 1.2 VREF VSEN Rising, ISL6558IB, ISL6558IR, TA = -40°C to 85°C 1.085 1.15 1.2 VREF Percent Overvoltage Hysteresis (GNT) VSEN Falling after Overvoltage - 2 - % GBD = Guaranteed By Design GNT = Guranteed Not Tesed Electrical Specifications Operating Conditions: VCC = 5V, TA = -40°C to 85°C. Unless Otherwise Specified. (Continued) PARAMETER TEST CONDITIONS MIN TYP MAX UNITS CURRENT SENSING + RISEN1 + CORRECTION ERROR AMPLIFIER FB ISEN1 RFB VOUT Q3 Q4 L02 PHASE PWM1 IL2 0.8V COUT RLOAD VIN HIP6601B - Q1 Q2 L01 PHASE IL1 VIN HIP6601B CURRENT SENSING CORRECTION PWM2 - ITOTAL + + + - RISEN2 ISEN2 - - CURRENT AVERAGING FIGURE 1. SIMPLIFIED BLOCK DIAGRAM OF THE ISL6558 VOLTAGE AND CURRENT CONTROL LOOPS CONFIGURED FOR A TWO CHANNEL CONVERTER ∑ ∑ ∑ ∑ DROOP ROS PWM CIRCUIT PWM CIRCUIT VERROR1 VERROR2 IDROOP ISL6558 |
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