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SC1538CS15 Datasheet(PDF) 3 Page - Semtech Corporation |
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SC1538CS15 Datasheet(HTML) 3 Page - Semtech Corporation |
3 / 4 page © 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 DUAL LINEAR CONTROLLER SC1538 PRELIMINARY - October 5, 1999 3 NOTES: (1) See Application Circuit (2) Connected to FET drains. ELECTRICAL CHARACTERISTICS Unless specified, T A = 25°C. Values in bold apply over full operating temperature range. Parameter Symbol Test Conditions MIN TYP MAX Units VIN Supply Voltage VIN 11.28 12.00 12.72 V Quiescent Current I Q Both EN High 2 3 mA 4 One or both EN Low 1.5 2.0 mA 2.5 Undervoltage Lockout Start Threshold UVLO 7 8 9 V Enable Enable Pin Current I EN Input = Low 50 100 µA 150 Threshold Voltage V TH V EN rising 1.6 2.3 V Hysteresis V HYST 100 180 300 mV Enable Delay Time (1) t D(ON) EN = Low to High, measured from EN = V TH to 10% DRV 500 ns Disable Delay Time (1) t D(OFF) EN = High to Low, measured from EN = V TH to 90% DRV 150 ns DRV Output Current I DRV 5 10 mA Output Voltage V DRV Full On 9.0 10.5 V Rise Time (1) t r EN = Low to High, measured from EN = V TH to 90% DRV 1.6 ms Fall Time (1) t f 550 ns Output Voltage Regulation Output Voltage (1) VO 3.0V ≤ V FET (2) ≤ 3.6V, 1mA ≤ I O ≤ 1A -1.5% VO +1.5% V -2.5% +2.5% Overcurrent Protection Trip Threshold V OC -20% 1.00 +15% V Power-up Output Short Circuit Immunity 15 60 ms Output Short Circuit Glitch Immunity 0.5 4 6 ms Control Section Bandwidth DRV = 9V, THD = 5%, C L = 600pF 5 MHz |
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