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ISL85033 Datasheet(PDF) 9 Page - Intersil Corporation |
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ISL85033 Datasheet(HTML) 9 Page - Intersil Corporation |
9 / 26 page ISL85033 9 FN6676.4 September 22, 2011 POWER-GOOD PG1, PG2 Trip Level PG to PGOOD1, PGOOD2 Rise 91 94 % Fall 82.5 85.5 % PG1, PG2 Propagation Delay Percentage of the soft-start time 10 % PG1, PG2 Low Voltage ISINK = 3mA 100 300 mV ENABLE INPUT EN1, EN2 Leakage Current EN1/2 = 0V/5V -1 1 µA EN1, EN2 Input Threshold Voltage Low Level 0.8 V Float Level 1.0 1.4 V High Level 2 V SYNC INPUT/OUTPUT SYNCIN Input Threshold Falling Edge 1.1 1.4 V Rising Edge 1.6 1.9 V Hysteresis 200 mV SYNCIN Leakage Current SYNCIN = 0V/5V 10 1000 nA SYNCIN Pulse Width 100 ns SYNCOUT Phase-shift to SYNCIN Measured from rising edge to rising edge, if duty cycle is 50% 180 ° SYNCOUT Frequency Range 600 4000 kHz SYNCOUT Output Voltage High ISYNCOUT = 3mA VCC - 0.3 VCC -0.08 V SYNCOUT Output Voltage Low 0.08 0.3 V FAULT PROTECTION Thermal Shutdown Temperature TSD Rising Threshold 150 °C THYS Hysteresis 20 °C Overcurrent Protection Threshold (Note 7) 4.1 5.1 6.1 A OCP Blanking Time 60 ns POWER MOSFET Highside RHDS IPHASE = 100mA 75 150 m Ω Internal BOOT1, BOOT2 Refresh Lowside RLDS IPHASE = 100mA 1 Ω PHASE Leakage Current EN1/2 = PHASE1/2 = 0V 300 nA PHASE Rise Time tRISE VIN = 25V 10 ns NOTES: 6. Test Condition: VIN = 28V, FB forced above regulation point (0.8V), no switching, and power MOSFET gate charging current not included. 7. Established by both current sense amplifier gain test and current sense amplifier output test @ IL = 0A. 8. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not production tested. Electrical Specifications TA = -40°C to +85°C, VIN = 4.5V to 28V, unless otherwise noted. Typical values are at TA = +25°C. Boldface limits apply over the operating temperature range, -40°C to +85°C (Continued) PARAMETER SYMBOL TEST CONDITIONS MIN (Note 8) TYP MAX (Note 8) UNITS |
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