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ISL6556ACRZ Datasheet(PDF) 8 Page - Intersil Corporation |
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ISL6556ACRZ Datasheet(HTML) 8 Page - Intersil Corporation |
8 / 24 page 8 PIN-ADJUSTABLE OFFSET Voltage at OFS pin Offset resistor connected to ground 485 500 515 mV VCC=5.00V, offset resistor connected to VCC 2.91 3.00 3.09 V OSCILLATOR Accuracy RT = 100kΩ -10 - 10 % Adjustment Range 0.08 - 1.5 MHz Sawtooth Amplitude -1.5 - V Max Duty Cycle - 66.7 - % ERROR AMPLIFIER Open-Loop Gain RL = 10kΩ to ground - 80 - dB Open-Loop Bandwidth CL = 100pF, RL = 10kΩ to ground - 18 - MHz Slew Rate CL = 100pF 4.5 6.0 7.5 V/ µs Maximum Output Voltage 4.0 4.3 - V Output High Voltage @ 2mA 3.7 - - V Output Low Voltage @ 2mA - - 1.35 V REMOTE-SENSE AMPLIFIER Bandwidth -20 - MHz Output High Current VSEN - RGND = 2.5V -500 - 500 µA Output High Current VSEN - RGND = 0.6 -500 - 500 µA PWM OUTPUT PWM Output Voltage LOW Threshold Iload = ±500 µA- - 0.3 V PWM Output Voltage HIGH Threshold Iload = ±500 µA4.3 - - V SENSE CURRENT Sensed Current Tolerance ISEN1 = ISEN2 = ISEN3 = ISEN4 = 80 µA, 0°C to 105°C 74 81 91 µA Overcurrent Trip Level 98 110 122 µA POWER GOOD AND PROTECTION MONITORS PGOOD Low Voltage IPGOOD = 4mA - - 0.4 V Undervoltage Offset From VID VSEN Falling 72 74 76 %VID Overvoltage Threshold Voltage above VID, After Soft Start (Note 6) 180 200 220 mV Before Enable - 1.63 - V VCC < POR Threshold 1.7 1.8 1.87 V Overvoltage Reset Voltage VCC ≥ POR Threshold, VSEN Falling - 0.6 - V VCC < POR Threshold - 1.5 - V OVP Drive Voltage IOVP = -100mA, VCC = 5V - 1.9 - V Minimum VCC for OVP 1.4 - - V NOTES: 4. When using the internal shunt regulator, VCC is clamped to 6.02V (max). Current must be limited to 25mA or less. 5. These parts are designed and adjusted for accuracy with all errors in the voltage loop included. 6. During soft start, VDAC rises from 0 to VID. The overvoltage trip level is the higher of 1.7V and VDAC + 0.2V. Electrical Specifications Operating Conditions: VCC = 5V or ICC < 25mA (Note 4), TJ = 0°C to 105°C. Unless Otherwise Specified. (Continued) PARAMETER TEST CONDITIONS MIN TYP MAX UNITS ISL6556A |
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