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RT9819A-50PYR Datasheet(PDF) 3 Page - Richtek Technology Corporation |
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RT9819A-50PYR Datasheet(HTML) 3 Page - Richtek Technology Corporation |
3 / 12 page RT9819 3 DS9819-05 August 2007 www.richtek.com Absolute Maximum Ratings (Note 1) Terminal Voltage (with Respect to GND) VDD ------------------------------------------------------------------------------------------------------------------------ −0.3V to 6.0V All Other Inputs -------------------------------------------------------------------------------------------------------- −0.3V to VDD+0.3V Input Current, IVDD ----------------------------------------------------------------------------------------------------- 20mA Power Dissipation, PD @ TA = 25 °C SC-70-3/SC-82 --------------------------------------------------------------------------------------------------------- 0.25W SOT-23-3 ---------------------------------------------------------------------------------------------------------------- 0.4W Package Thermal Resistance (Note 4) SC-70-3/SC-82, θJA --------------------------------------------------------------------------------------------------- 400°C /W SOT-23-3, θJA ----------------------------------------------------------------------------------------------------------- 250°C /W Lead Temperature (Soldering, 10sec.) ---------------------------------------------------------------------------- 260 °C Storage Temperature Range ---------------------------------------------------------------------------------------- −65°C to 125°C ESD Susceptibility (Note 2) HBM (Human Body Mode) ------------------------------------------------------------------------------------------ 2kV MM (Machine Mode) -------------------------------------------------------------------------------------------------- 200V Electrical Characteristics Recommended Operating Conditions (Note 3) Junction Temperature Range ---------------------------------------------------------------------------------------- −40°C to 125°C Ambient Temperature Range ---------------------------------------------------------------------------------------- −40°C to 85°C (VDD = 3V, TA = 25 °C, unless otherwise specified) Parameter Symbol Test C onditions Min Typ Max Units Operating VDD (VOUT) Range VDD RT9819A/B/C/D 0.9 -- 6 V RT9819E/F/G/H 1.1 -- 6 Supply Current IDD VTH = 3V , VDD = 4.5V -- 3 8 μA Reset Threshold VTH -- 1.2 to 5.0 -- V Threshold Voltage Accuracy ΔVTH −1.5 -- +1.5 % Threshold Voltage Hysteresis VHYS -- 0.01 VTH -- V VDD Drop to Reset Delay tRD Drop = VTH −125mV -- 20 -- μs Reset Active Time Out Period RT9819A/E tRP VDD ≥ 1.02 × VTH -- 0 -- ms RT9819B/F 35 55 75 ms RT9819C/G 143 220 297 ms RT9819D/H 292 450 608 ms RESET Output Voltage Low VOL VDD < VTH(MIN) ,ISINK = 3.5mA, VTH ≥ 3V -- -- 0.4 V VDD < VTH(MIN) ,ISINK = 1.2mA, VTH ≥ 1.8V -- -- 0.3 VTH(MIN) > VDD > 1V, ISINK = 0.5mA -- -- 0.3 To be continued |
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