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EC4304ANFNR Datasheet(PDF) 7 Page - E-CMOS Corporation |
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EC4304ANFNR Datasheet(HTML) 7 Page - E-CMOS Corporation |
7 / 13 page EC4304 1A, Hysteretic, High Brightness LED Driver with Internal Switch E-CMOS Corp. (www.ecmos.com.tw) Page 7 of 13 4B25N-Rev.F005 Parameter Symbol Test Conditions Min Typ Max Units LX RDS_ON RLX @ILX = 1A, EC4304A - 0.3 0.6 LX Leakage Current - - 5 µA Minimum Switch ON Time TON_min LX Switch ON - 240 - ns Minimum Switch OFF Time TOFF_min LX Switch OFF - 200 - ns Recommended Minimum Switch ON Time TON_min_rec - 800 - ns Frequency Operation Frequency FLX ADJ pin floating, L=33µH (0.093 ) IOUT = 1A @ VLED=3.6V driving 1LED - 280 - kHz Recommended Maximum Operation Frequency FLXmax - - 1 MHz Duty Cycle Range of Output Switch of Operation Frequency DLX 30 - 70 % Internal Comparator Propagation Delay TPD - 50 - ns Soft-Start Soft-Start Time Time taken for output current to reach 90% of final value after voltage on ADJ pin has risen above 0.3V. - 500 - µs |
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