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ISL8014 Fiches technique(PDF) 4 Page - Intersil Corporation |
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ISL8014 Fiches technique(HTML) 4 Page - Intersil Corporation |
4 / 16 page 4 FN6576.1 December 20, 2007 Absolute Maximum Ratings (Reference to GND) Thermal Information VIN, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V EN, SYNCH, PG . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VIN+0.3V LX. . . . . . . . . . . . . . . . . . . . . . . . . .-1.5V (100ns)/-0.3V (DC) to 6.5V VFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.7V Recommended Operating Conditions VIN Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V Load Current Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0A to 4A Ambient Temperature Range . . . . . . . . . . . . . . . . . . .-40°C to +85°C Thermal Resistance (Typical, Notes 1, 2) θJA (°C/W) θJC (°C/W) 16 Ld 4x4 QFN Package . . . . . . . . . 40 3 Junction Temperature Range. . . . . . . . . . . . . . . . . . -55°C to +125°C 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. NOTE: 1. θJA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech Brief TB379. 2. θ JC, “case temperature” location is at the center of the exposed metal pad on the package underside. See Tech Brief TB379. Electrical Specifications Unless otherwise noted, all parameter limits are established over the recommended operating conditions and the typical specification are measured at the following conditions: TA = -40°C to +85°C, VIN = 3.6V, EN = VDD, unless otherwise noted. Typical values are at TA = +25°C. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS INPUT SUPPLY VIN Undervoltage Lockout Threshold VUVLO Rising, no load - 2.5 2.7 V Falling, no load 2.2 2.4 - V Quiescent Supply Current IVIN SYNCH = GND, no load at the output - 35 - µA SYNCH = GND, no load at the output and no switches switching -30 45 µA SYNCH = VDD, FS = 1MHz, no load at the output -6.5 10 mA Shut Down Supply Current ISD VIN = 5.5V, EN = low - 0.1 2 µA OUTPUT REGULATION Reference Voltage VREF 0.790 0.8 0.810 V VFB Bias Current IVFB VFB = 0.75V - 0.1 - µA Line Regulation VIN = VO + 0.5V to 5.5V (minimal 2.7V) - 0.2 - %/V Soft-Start Ramp Time Cycle -1 - ms OVERCURRENT PROTECTION Current Limit Blanking Time tOCON -17 - Clock pulses Overcurrent and Auto Restart Period tOCOFF - 4 - SS cycle Switch Current Limit ILIMIT (Note 3) 4.9 6.0 7.1 A Peak Skip Limit ISKIP (Note 3) - 1.3 - A COMPENSATION Error Amplifier Trans-Conductance -20 - µA/V Trans-Resistance RT 0.17 0.20 0.23 Ω LX P-Channel MOSFET ON-Resistance VIN = 5V, IO = 200mA - 50 75 m Ω VIN = 2.7V, IO = 200mA - 70 100 m Ω ISL8014 |
Numéro de pièce similaire - ISL8014 |
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Description similaire - ISL8014 |
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