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EL7515IYZ Datasheet(PDF) 3 Page - Intersil Corporation |
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EL7515IYZ Datasheet(HTML) 3 Page - Intersil Corporation |
3 / 9 page 3 FN7120.2 August 10, 2007 IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typ values are for information purposes only. Unless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: TJ = TC = TA Absolute Maximum Ratings (TA = +25°C) Thermal Information EN, LBI, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+12V LX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+18V Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . -65°C to +150°C Operating Temperature . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C Operating Junction Temperature: . . . . . . . . . . . . . . . . . . . . . +135°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. Electrical Specifications VIN = 5V, VOUT = 12V, L = 10µH, IOUT = 0mA, RT = 100kΩ, TA = +25°C, Unless Otherwise Specified. PARAMETER DESCRIPTION CONDITIONS MIN (Note 1) TYP MAX (Note 1) UNIT VIN Input Voltage Range 1.8 13.2 V VOUT Output Voltage Range 4.5 17 V IQ1 Quiescent Current - Shut-down VEN = 0, feedback resistors disconnected 1 µA IQ2 Quiescent Current VEN = 2V 1.4 2 mA VFB Feedback Voltage 1.29 1.33 1.37 V IB Feedback Input Bias Current 0.10 µA DMAX Maximum Duty Cycle 84 90 % ILIM Current Limit - Max Peak Input Current 11.4 A ISHDN Shut-down Input Bias Current 1µA VLBI LBI Threshold Voltage 180 220 250 mV VOL-LBO LBO Output Low ILBO = 1mA 0.1 0.2 V ILEAK-LBO LBO Output Leakage Current VLBI = 250mV, VLBO = 5V 0.02 2 µA rDS(ON) Switch On Resistance at 12V output 220 m Ω ILEAK-SWITCH Switch Leakage Current 1µA ΔVOUT/ΔVIN/VOUT Line Regulation 3V < VIN < 6V, VOUT = 12V, no load 0.4 %/V ΔVOUT/VOUT Load Regulation IOUT = 50mA to 150mA 1 % fOSC-MAX Maximum Switching Frequency RT = 49.9kΩ 1200 kHz fOSC1 Switching Frequency 600 670 750 kHz VHI_EN EN Input High Threshold 1.6 V VLO_EN EN Input Low Threshold 0.5 V Pin Descriptions PIN NUMBER PIN NAME PIN FUNCTION 1 PGND Power ground; connected to the source of internal N-Channel power MOSFET 2 SGND Signal ground; ground reference for all the control circuitry; needs to have only a single connection to PGND 3 RT Timing resistor to adjust the oscillation frequency of the converter 4 EN Chip enable; connects to logic HI (>1.6V) for chip to function 5 LBI Low battery input; connects to a sensing voltage, or left open if function is not used 6 LBO Low battery detection output; connected to the open drain of a MOSFET; able to sink 1mA current 7 SS Soft-start; connects to a capacitor to control the start-up of the converter 8 FB Voltage feedback input; needs to connect to resistor divider to decide VO 9 VDD Control circuit positive supply 10 LX Inductor drive pin; connected to the drain of internal N-Channel power MOSFET EL7515 |
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