RT9819 RICHTEK [Richtek Technology Corporation], RT9819 Datasheet
RT9819
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RT9819 Summary of contents
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... It provides internally fixed threshold levels with 0.1V per step ranging from 1.2V to 5V, which covers most digital applications. It features low supply current of 3μA. The RT9819 performs supervisory function by sending out a reset signal whenever the V voltage falls below a preset threshold DD level ...
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... RT9819 Pin Configurations VDD GND GND RESET/ RESET/ RESET RESET SC-70-3 SC-82 Note : There is no pin1 indicator on top mark for SC-82 type, and pin 1 will be lower left pin when reading top mark from left to right. Pin2 of SC-82 is wider than other pins. Functional Pin Description ...
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... Threshold Voltage Hysteresis V V Drop to Reset Delay t DD RT9819A/E RT9819B/F Reset Active t Time Out Period RT9819C/G RT9819D/H V RESET Output Voltage Low DS9819-05 August 2007 (Note 1) (Note 3) Test Conditions RT9819A/B/C/D DD RT9819E/F/G 4. HYS −125mV Drop = ≥ 1.02 × < ...
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... RT9819 Parameter Symbol RESET Output Voltage High V OH RESET Output Voltage Low V OL RESET Output Voltage High V OH 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 sections of the specifications is not implied ...
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... RT9819 Nch Driver Output Current vs RT9819C 0.5 1 1.5 2 2.5 V (V) DS Output Voltage vs. Input Voltage 7 RT9819A 2.9V 3. Input Voltage (V) Supply Current vs. Input Voltage 4 RT9819C-30 80°C 3 25°C 2 -30° ...
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... Power-Down Reset Delay vs. Temperature RT9819A- 200mV DROP V DROP V DROP 5 0 -50 - Temperature (°C) Nch Driver Sink Current vs. Input Voltage RT9819A-45 0.5V DS -30°C 25°C 80° Input Voltage (V) DS9819-05 August 2007 = 150mV = 250mV 100 125 = 150mV = 250mV 100 125 ...
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... RT9819 RT9819C Input Voltage (V) RT9819A -50 - (°C) Temperature Nch Driver Output Current vs. V RT9819G- (V) DS www.richtek.com 5.0V = 4.5V 100 125 ...
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... Input Voltage (V) www.richtek.com 8 Power Down Reset Time-Out vs. Temperature 500 RT9819G-31 -30°C 400 25°C 300 80°C 200 100 -50 Power-Down Reset Time-Out vs. Temperature 30 RT9819G 100 Temperature (° 200mV DROP V = 150mV DROP V ...
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... Benefits of Highly Accurate Reset Threshold Most μP supervisor ICs have reset threshold voltages between 1% and 1.5% below the value of nominal supply voltages. This ensures a reset will not occur within 1% of the nominal supply, but will occur when the supply is 1.5% below nominal. DS9819-05 August 2007 RT9819 www.richtek.com 9 ...
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... RT9819 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 0.080 0.260 0.210 0.460 SC-70-3 Surface Mount Package H L Dimensions In Inches Min Max 0 ...
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... SC-82 Surface Mount Package RT9819 H L Min Max 0.031 0.043 0.000 0.004 0.045 0.053 0.006 0.016 0.014 0.020 0.071 0.096 0.071 0.087 0.051 ...
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... RT9819 Symbol Richtek Technology Corporation Headquarter 5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611 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 ...