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MIC2009YML Datasheet(PDF) 11 Page - Micrel Semiconductor |
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MIC2009YML Datasheet(HTML) 11 Page - Micrel Semiconductor |
11 / 25 page Micrel, Inc. MIC20XX Family January 2009 11 M9999-012109-A Electrical Characteristics (continued) Symbol Parameter Condition Min Typ Max Units IOUT = 2A, VOUT = 0.8VIN 210 250 286 IOUT = 1A, VOUT = 0.8VIN 190 243 293 IOUT = 0.5A, VOUT = 0.8VIN 168 235 298 CLF Variable Current Limit Factor MIC20X7 – MIC20X9 RSET (Ω) = CLF (V) IOUT (A) IOUT = 0.2A, VOUT = 0.8VIN 144 225 299 V ILIMIT_2nd Secondary current limit MIC201X (All Kickstart parts only) VIN = 2.5V 2.2 4 6 A VIN Rising 2 2.25 2.5 UVLOTHRESHOLD Under Voltage Lock Out Threshold VIN Falling 1.9 2.15 2.4 V UVLOHysteresis Undervoltage Lock Out Hysteresis 0.1 V VVUVLO_TH Variable UVLO Threshold MIC20X6 225 250 275 mV VIL (MAX) 0.5 VEN ENABLE Input Voltage (5) VIH (MIN) 1.5 V VFAULT Fault status Output Voltage IOL = 10mA 0.25 0.4 V TJ Increasing 145 OTTHRESHOLD Over-temperature Threshold TJ Decreasing 135 °C AC Characteristics Symbol Parameter Condition Min Typ Max Units tRISE Output Turn-on rise time RL = 10 Ω, CLOAD = 1µF, VOUT = 10% to 90% *CSLEW = Open 500 1000 1500 µs Delay before asserting or releasing FAULT/ MIC200X Time from current limiting to FAULT/ state change 20 32 49 tD_FAULT Delay before asserting or releasing FAULT/ MIC201X Time from IOUT continuously exceeding primary current limit condition to FAULT/ state change 77 128 192 ms tD_LIMIT Delay before current limiting MIC201X 77 128 192 ms tRESET Delay before resetting Kickstart current limit delay, tD_LIMIT MIC201X Out of current limit following a current limit event. 77 128 192 ms tON_DLY Output Turn-on Delay RL = 43Ω, CL = 120µF, VEN = 50% to VOUT = 10% *CSLEW = Open 1000 1500 µs tOFF_DLY Output Turn-off Delay RL = 43Ω, CL = 120µF, VEN = 50% to VOUT = 90% *CSLEW = Open 700 µs Note : * Whenever CSLEW is present. |
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