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RT9817H-49PH Datasheet(PDF) 3 Page - Richtek Technology Corporation |
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RT9817H-49PH Datasheet(HTML) 3 Page - Richtek Technology Corporation |
3 / 11 page RT9817 3 DS9817-07 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-82 -------------------------------------------------------------------------------------------------------------------- 0.25W SOT-143 ----------------------------------------------------------------------------------------------------------------- 0.285W Package Thermal Resistance (Note 4) SC-82, θJA --------------------------------------------------------------------------------------------------------------- 400°C SOT-143, θJA------------------------------------------------------------------------------------------------------------ 350°C 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 (VDD = 3V, TA = 25 °C, unless otherwise specified) Recommended Operating Conditions (Note 3) Junction Temperature Range ---------------------------------------------------------------------------------------- −40°C to 125°C Ambient Temperature Range ---------------------------------------------------------------------------------------- −40°C to 85°C Parameter Symbol Test Conditions Min Typ Max Units Operating VDD (VOUT) Range VDD RT9817A/B/C/D 0.9 -- 6 V RT9817E/F/G/H 1.1 -- 6 Supply Current IDD VTH = 3V , VDD = 4.5V -- 3 8 μA R eset 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 RT9817A/E tRP VDD ≥ 1.02 × VTH -- 0 -- ms RT9817B/F 35 55 75 ms RT9817C/G 143 220 297 ms RT9817D/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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