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IS31LT3354 Datasheet(PDF) 3 Page - Integrated Silicon Solution, Inc |
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IS31LT3354 Datasheet(HTML) 3 Page - Integrated Silicon Solution, Inc |
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3 / 12 page  IS31LT3354 Integrated Silicon Solution, Inc. – www.issi.com Rev. A, 09/01/2011 3 ABSOLUTE MAXIMUM RATINGS (NOTE 1) Symbol Parameter Rating VIN Input voltage -0.3V to +50V VISENSE ISENSE voltage VIN+0.3V to VIN-5V ,VIN>5V VIN+0.3V to -0.3V,VIN<5V VGATE GATE pin voltage -0.3V to +6V VADJ Adjust pin input voltage -0.3V to +6V Ptot Power dissipation 600mW @SOT23-5 TOP Operating temperature -40 to 85°C TST Storage temperature -55 to 150°C Tj MAX Junction temperature 150°C RJA Junction to ambient 108°C/W @SOT23-5 ESD Susceptibility (human body model) 4kV ELECTRICAL CHARACTERISTICS TA = 25°C (Note 2) Symbol Parameter Conditions Min. Typ. Max. Unit VIN Input voltage 6 40 V IINQoff Quiescent supply current with output off ADJ pin grounded 80 95 110 μA IINQon Quiescent supply current with output switching ADJ pin floating 450 600 μA VSENSE Mean current sense threshold voltage 91 96 101 mV VSENSEHYS Sense threshold hysteresis ±15 % ISENSE ISENSE pin input current VSENSE = 0.1V 8 10 μA VREF Internal reference voltage Measured on ADJ pin with pin floating 1.2 V VADJ External control voltage range on ADJ pin for dc brightness control 0.3 1.2 V VADJoff DC voltage on ADJ pin to switch chip from active (on) state to quiescent (off) state VADJ falling 0.15 0.2 0.25 V VADJon DC voltage on ADJ pin to switch chip from quiescent (off) state to active (on) state VADJ rising 0.2 0.25 0.3 V RADJ Resistance between ADJ pin and VREF 500 KΩ |
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