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ISL6843 Datasheet(PDF) 6 Page - Intersil Corporation |
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ISL6843 Datasheet(HTML) 6 Page - Intersil Corporation |
6 / 12 page 6 FN9124.10 August 7, 2008 Absolute Maximum Ratings Thermal Information Supply Voltage, VDD . . . . . . . . . . . . . . . . . . . GND - 0.3V to +20.0V OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to VDD + 0.3V Signal Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 6.0V Peak GATE Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1A Operating Conditions Temperature Range ISL684xIx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +105°C Supply Voltage Range (Typical, Note 3) ISL6840, ISL6841 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5V to 14V ISL6843, ISL6845. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9V to 16V ISL6842, ISL6844. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V to 18V Thermal Resistance (Typical) θJA (°C/W) θJC (°C/W) DFN Package (Notes 1, 2) . . . . . . . . . . 77 6 SOIC Package (Note 1) . . . . . . . . . . . . 100 N/A MSOP Package (Note 1) . . . . . . . . . . . 130 N/A Maximum Junction Temperature . . . . . . . . . . . . . . . -55°C to +150°C Maximum Storage Temperature Range . . . . . . . . . . -65°C to +150°C Pb-free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and result in failures not covered by warranty. NOTES: 1. θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details. 2. For θJC, the “case temp” location is the center of the exposed metal pad on the package underside. 3. All voltages are with respect to GND. Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to “Functional Block Diagram” and “Typical Application” schematic on pages 3 and 4. VDD = 15V (Note 6), Rt = 10kΩ, Ct = 3.3nF, TA = -40 to +105°C Typical values are at TA = +25°C. 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. PARAMETER TEST CONDITIONS MIN TYP MAX UNITS UNDERVOLTAGE LOCKOUT START Threshold (ISL6840, ISL6841) 6.5 7.0 7.5 V START Threshold (ISL6843, ISL6845) 7.8 8.4 9.0 V START Threshold (ISL6842, ISL6844) 13.3 14.3 15.3 V STOP Threshold (ISL6840, ISL6841) 6.1 6.6 6.9 V STOP Threshold (ISL6843, ISL6845) 6.7 7.2 7.7 V STOP Threshold (ISL6842, ISL6844) 8.0 8.8 9.6 V Hysteresis (ISL6840, ISL6841) - 0.4 - V Hysteresis (ISL6843, ISL6845) - 0.8 - V Hysteresis (ISL6842, ISL6844) - 5.4 - V Start-up Current, IDD VDD < START Threshold - 60 100 µA Operating Current, IDD (Note 4) - 3.3 4.0 mA Operating Supply Current, ID Includes 1nF GATE loading - 4.1 5.5 mA REFERENCE VOLTAGE Overall Accuracy Over line (VDD = 12V to 18V), load, temperature 4.925 5.000 5.050 V Long Term Stability TA = +125°C, 1000 hours (Note 5) - 5 - mV Fault Voltage 4.40 4.65 4.85 V VREF Good Voltage 4.60 4.80 VREF - 0.05 V Hysteresis 50 165 250 mV Current Limit, Sourcing -20 - - mA Current Limit, Sinking 5 - - mA CURRENT SENSE Input Bias Current VCS = 1V -1.0 - 1.0 µA CS Offset Voltage VCS = 0V (Note 5) 95 100 105 mV COMP to PWM Comparator Offset Voltage VCS = 0V (Note 5) 0.80 1.15 1.30 V Input Signal, Maximum 0.91 0.97 1.03 V ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845 |
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