RT9818C-18GV Richtek USA Inc, RT9818C-18GV Datasheet
RT9818C-18GV
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RT9818C-18GV Summary of contents
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Micro-Power Voltage Detectors General Description The RT9818 is a micro-power voltage detector supervising the power supply voltage level for microprocessors (μP) or digital systems. It provides internally fixed threshold levels with 0.1V per step ranging from 1.2V to 5V, which ...
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RT9818 Pin Configurations GND 4 RESET/ RESET SC-82 VDD 3 2 GND RESET/ RESET SOT-23-3 Functional Pin Description Pin Name Pin Function GND Ground RESET Active Low Open-Drain Reset Output RESET Active High Open-Drain Reset Output VDD Power Pin Function ...
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... DD Parameter Operating Range DD OUT Supply Current Reset Threshold Threshold Voltage Accuracy V Drop to Reset Delay DD RT9818A/E RT9818B/F Reset Active Time Out Period RT9818C/G RT9818D/H RESET Output Voltage Low (Note 5) Hysteresis Width DS9818-09 April 2011 (Note 1) (Note 4) Symbol Test Conditions 3V 4.5V ...
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RT9818 Note 1. Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These are for stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the operational ...
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... Nch Driver Output Current vs RT9818C- 1. 0 (V) DS Output Voltage vs. Input Voltage 7 RT9818 1. Input Voltage (V) Supply Current vs. Input Voltage 4.0 RT9818C-30 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 Input Voltage (V) RT9818 2. 2. 2.5 3 3.5 4. 80°C 25°C −30° www.richtek.com 5 ...
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... Temperature (°C) Power Down Reset Delay vs. Temperature 45 RT9818A- 200mV DROP -50 - Temperature (°C) Nch Driver Sink Current vs. Input Voltage 40 RT9818C-30 0. −30°C 30 25° 0.5 1 1.5 2 Input Voltage (V) DS9818-09 April 2011 = 150mV DROP = 250mV DROP 75 100 125 = 150mV DROP = 250mV DROP ...
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... Output Delay Time vs. Load Capacitance 1000 100 4.5V TH 0.1 0.01 0.0001 50 75 100 125 Nch Driver Output Current vs. Input Voltage RT9818 RT9818C Temperature (°C) RT9818 4.5V TH 0.0010 0.0100 0.1000 Load Capacitance (µF) RT9818G- 0.5V DS −30°C 25°C 80° Input Voltage (V) www.richtek.com 100 125 1 ...
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... RT9818G-31 400 300 200 100 0 -50 - Temperature (°C) Power Down Reset Time-Out vs. Temperature 30 RT9818G- 200mV DROP -50 - Temperature (°C) Threshold Voltage vs. Temperature 2.40 RT9818C-22 2.35 2.30 2.25 Rising 2.20 Falling 2.15 2.10 2.05 2.00 -50 - Temperature ( ° C) www.richtek.com 100 125 4.40 4.35 4 ...
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Application Information Multiple Supplies Mainly, the pull-up connected to the RT9818 will connect to the supply voltage that is being monitored at the IC's However, some systems may use the open-drain output to level-shift from the monitored supply to reset ...
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RT9818 Outline Dimension Symbol www.richtek.com Dimensions In Millimeters Min Max 0.800 1.100 0.000 0.100 1.150 1.350 0.150 0.400 1.800 2.450 1.800 2.250 1.300 ...
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Symbol DS9818-09 April 2011 Dimensions In Millimeters Min Max 0.800 1.100 0.000 0.100 1.150 1.350 0.150 0.400 0.350 0.500 1.800 2.450 ...
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RT9818 Symbol www.richtek.com Dimensions In Millimeters Min Max 0.889 1.295 0.000 0.152 1.397 1.803 0.356 0.508 2.591 2.997 2.692 3.099 1.803 2.007 0.080 ...
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Symbol DS9818-09 April 2011 Dimensions In Millimeters Min Max 0.889 1.295 0.000 0.152 1.397 1.803 0.356 0.559 2.591 2.997 2.692 3.099 0.838 1.041 0.080 ...
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RT9818 Symbol Richtek Technology Corporation Headquarter 5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611 Information that is provided by Richtek Technology Corporation is believed ...