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ISL1902 Scheda tecnica(PDF) 8 Page - Intersil Corporation |
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ISL1902 Scheda tecnica(HTML) 8 Page - Intersil Corporation |
8 / 25 page ISL1902 8 FN7981.2 March 20, 2013 Absolute Maximum Ratings Thermal Information Supply Voltage, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +28.0V OUT, PWMOUT, INRUSH . . . . . . . . . . . . . . . . . . . . . . . . . . .GND - 0.3V to VDD Signal Pins (except CS-) . . . . . . . . . . . . . . . . . . . . GND - 0.3V to VREF + 0.3V Signal Pin CS- . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.6V to VREF + 0.3V VREF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GND - 0.3V to 6.0V Peak OUT Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.0A Peak PWMOUT Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.0A ESD Classification Human Body Model (Per MIL-STD-883 Method 3015.7). . . . . . . . 1500V Machine Model (Per EIAJ ED-4701 Method C-111) . . . . . . . . . . . . . 150V Charged Device Model (Per EOS/ESD DS5.3, 4/14/93). . . . . . . . . 750V Latchup (Per JESD-78B; Class 2, Level A. . . . . . . . . . . . . . . . . . . . . . 100mA Thermal Resistance (Typical) θJA (°C/W) θJC (°C/W) 24 Lead QSOP (Notes 4, 5) . . . . . . . . . . . . . 78 34 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 Operating Conditions Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +125°C Supply Voltage Range (Typical). . . . . . . . . . . . . . . . . . . . . . . 9VDC to 20VDC 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: 4. θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details. 5. For θJC, the “case temp” location is taken at the package top center. 6. All voltages are with respect to GND. Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to the Block Diagram on page 4 and Typical Application schematics starting on page 5. VDD = 17V, RRAMP = 54kΩ, CRAMP = 470pF, TA = -40°C to +125°C, Typical values are at TA = +25°C. Boldface limits apply over the operating temperature range, -40°C to +125°C. PARAMETER TEST CONDITIONS MIN (Note 7) TYP MAX (Note 7) UNITS SUPPLY VOLTAGE Supply Voltage 26 V Start-Up Current, IDD VDD = 5.0V 100 200 µA Operating Current, IDD RLOAD, COUT = 0 10 14.5 mA UVLO START Threshold 14.8 15.5 16.1 V UVLO STOP Threshold 6.80 7.10 7.50 V Hysteresis 7.50 8.30 9.30 V REFERENCE VOLTAGE (VREF) Overall Accuracy IVREF = 0mA to -10mA, 8V < VDD< 26V 5.30 5.40 5.50 V Long Term Stability TA = +125°C, 1000 hours (Note 8) 10 25 mV Operational Current (Source) 8V < VDD< 26V -10 mA Current Limit VREF = 5.00V, 8V < VDD< 26V -15 -100 mA Load Capacitance (Note 8) 0.1 3.3 µF PEAK CURRENT SENSE (OC) Current Limit Threshold VERR = VREF, RAMP = 0V 577 600 623 mV Leading Edge Blanking (LEB) Duration (Note 8) 70 120 150 ns OC to OUT Delay + LEB TA = +25°C 110 170 200 ns Input Bias Current VOC = 0.3V -1.0 1.0 µA RAMP RAMP Sink Current Device Impedance IRAMP = 10mA 20 Ω RAMP to PWM Comparator Offset 190 235 287 mV Input Bias Current VRAMP = 0.3V -1.0 1.0 µA |
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