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ISL6326BIRZ Datasheet(PDF) 7 Page - Intersil Corporation |
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ISL6326BIRZ Datasheet(HTML) 7 Page - Intersil Corporation |
7 / 30 page 7 FN9286.0 April 21, 2006 DAC Sink Current - - 300 µA REF Source Current 45 50 55 µA REF Sink Current 45 50 55 µA PIN-ADJUSTABLE OFFSET Voltage at OFS Pin Offset resistor connected to ground 380 400 420 mV Voltage below VCC, offset resistor connected to VCC 1.55 1.60 1.65 V OSCILLATORS Accuracy of Switching Frequency Setting RT = 100kΩ 225 250 275 kHz Adjustment Range of Switching Frequency (Note 4) 0.08 - 1.0 MHz Soft-start Ramp Rate RS = 100kΩ (Notes 5, 6) - 1.563 - mV/µs Adjustment Range of Soft-Start Ramp Rate (Note 4) 0.625 - 6.25 mV/µs PWM GENERATOR Sawtooth Amplitude -1.25 - V ERROR AMPLIFIER Open-Loop Gain RL = 10kΩ to ground (Note 4) - 96 - dB Open-Loop Bandwidth (Note 4) - 80 - MHz Slew Rate (Note 4) - 25 - V/µs Maximum Output Voltage 3.8 4.3 4.9 V Output High Voltage @ 2mA 3.6 - - V Output Low Voltage @ 2mA -- 1.8 V REMOTE-SENSE AMPLIFIER Bandwidth (Note 4) - 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- - 0.5 V PWM Output Voltage HIGH Threshold Iload = ±500 μA4.3 - - V CURRENT SENSE AND OVERCURRENT PROTECTION Sensed Current Tolerance (IOUT) ISEN1 = ISEN2 = ISEN3 = ISEN4 = 60 μA 576063 µA Overcurrent Trip Level for Average Current 72 85 98 µA Peak Current Limit for Individual Channel 100 120 140 µA IOUT Trip Level for Overcurrent protection 1.85 2.0 2.15 V THERMAL MONITORING AND FAN CONTROL TM Input Voltage for VR_FAN Trip 1.55 1.65 1.75 V TM Input Voltage for VR_FAN Reset 1.85 1.95 2.05 V TM Input Voltage for VR_HOT Trip 1.30 1.40 1.50 V TM Input Voltage for VR_HOT Reset 1.55 1.65 1.75 V Leakage Current of VR_FAN With externally pull-up resistor connected to VCC - - 30 µA VR_FAN Low Voltage With 1.25k resistor pull-up to VCC, IVR_FAN = 4mA - - 0.4 V Electrical Specifications Operating Conditions: VCC = 5V, Unless Otherwise Specified (Continued) PARAMETER TEST CONDITIONS MIN TYP MAX UNITS ISL6326B |
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Similar Description - ISL6326BIRZ |
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