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ML4880ES Datasheet(PDF) 3 Page - Micro Linear Corporation |
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ML4880ES Datasheet(HTML) 3 Page - Micro Linear Corporation |
3 / 15 page ML4880 3 ABSOLUTE MAXIMUM RATINGS Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. VIN ............................................................................................... 20V Peak Driver Output Current ........................................ 2A VFB Voltage ......................................... GND – 0.3V to 6V ISENSE Voltage ..................................................... ±500mV All Other Analog Inputs ......... GND – 0.3V to VIN + 0.3V All Digital Inputs .................. GND – 0.3V to VREG + 0.3V Junction Temperature ............................................. 150 °C Storage Temperature Range .................... –65 °C to 150°C Lead Temperature (Soldering, 10 sec) ..................... 150 °C Thermal Resistance ( θJA)...................................... 80°C/W OPERATING CONDITIONS VIN Range ..................................................... 5.5V to 18V Temperature Range ML4880CS ................................................ 0 °C to 70°C ML4880ES ............................................. –20 °C to 70°C ELECTRICAL CHARACTERISTICS Unless otherwise specified, VIN = 14V, C(VREG) = 10µF, TA = Operating Temperature Range (Note 1) PARAMETER CONDITIONS MIN TYP MAX UNITS Shutdown Inputs Input Low Voltage 0.8 V Input High Voltage 2.0 V Input Bias Current –1 1 µA Buck Regulator A Duty Cycle Ratio VIN = 5.5V, ISENSE A = VFB A = 0V 86 96 % VFB A Threshold Voltage 1.21 1.25 1.29 V ISENSE A Threshold Voltage –140 –200 –250 mV Transition Time CL = 1000pF, 0 to VREG 80 100 ns Buck Regulator B Duty Cycle Ratio VIN = 5.5V, ISENSE B = VFB B = 0V 92 98 % VFB B Threshold Voltage 1.21 1.25 1.29 V ISENSE B Threshold Voltage –140 –200 –250 mV Transition Time CL = 1000pF, 0 to VREG 80 100 ns Flyback Regulator C Duty Cycle Ratio VIN = 5.5V, ISENSEC = VFBC = 0V 86 94 % VIN = 18V, ISENSEC = VFBC = 0V 61 77 % VFB C Threshold Voltage 1.21 1.25 1.29 V ISENSE C Threshold Voltage –140 –200 –250 mV Transition Time CL = 1000pF, 0 to VREG 80 100 ns Supply Linear Regulator Output Voltage 7V ≤ VIN ≤ 18V 6.25 6.99 V Linear Regulator Load Regulation I(VREG) = 0 to 10mA 6.10 6.99 V VIN Current SHDN A/B/C = 5V 300 350 µA SHDN A/B/C = 0V 350 400 µA Note 1: Limits are guaranteed by 100% testing, sampling or correlation with worst case test conditions. |
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