RT9817 RICHTEK [Richtek Technology Corporation], RT9817 Datasheet
RT9817
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RT9817 Summary of contents
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... Micro-Power Voltage Detectors with Manual Reset General Description The RT9817 is a micro-power voltage detector with deglitched manual reset input 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 covers most digital applications. It features low supply current of 3μ ...
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... Ground Pin RESET Active Low Push-Pull Reset Output RESET Active High Push-Pull Reset Output Manual Reset MR VDD Power Pin Function Block Diagram VSET Threshold Voltage Setting www.richtek.com 2 RT9817 VDD GND VDD up RESET/ RESET/ MR RESET RESET VDD VDD MR P MOS Timer CMP ...
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... Threshold Voltage Hysteresis V V Drop to Reset Delay t DD RT9817A/E RT9817B/F Reset Active t Time Out Period RT9817C/G RT9817D/H V RESET Output Voltage Low DS9817-07 August 2007 (Note 1) (Note 3) Test Conditions RT9817A/B/C/D DD RT9817E/F/G 4. HYS −125mV Drop = ≥ 1.02 × < ...
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... RT9817 Parameter Symbol V RESET Output Voltage High 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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... RT9817 Nch Driver Output Current vs RT9817C 0.5 1 1.5 2 2.5 V (V) DS Output Voltage vs. Input Voltage 7 RT9817A 2.9V 3. Input Voltage (V) Supply Current vs. Input Voltage 4 RT9817C-30 80°C 3 25°C 2 -30° ...
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... Power-Down Reset Delay vs. Temperature RT9817A- 200mV DROP V DROP V DROP 5 0 -50 - Temperature (°C) Nch Driver Sink Current vs. Input Voltage RT9817A-45 0.5V DS -30°C 25°C 80° Input Voltage (V) DS9817-07 August 2007 = 150mV = 250mV 100 125 = 150mV = 250mV 100 125 ...
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... RT9817 RT9817C Input Voltage (V) RT9817A -50 - (°C) Temperature Nch Driver Output Current vs. V RT9817G- (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 RT9817G-31 -30°C 400 25°C 300 80°C 200 100 0 - Power-Down Reset Time-Out vs. Temperature 30 RT9817G- -50 - 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. DS9817-07 August 2007 RT9817 www.richtek.com 9 ...
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... RT9817 Outline Dimension Symbol www.richtek.com Dimensions In Millimeters Dimensions In Inches Min Max 0.800 1.200 0.050 0.150 1.200 1.400 0.300 0.520 0.760 0.920 2.100 2.640 2.800 3.040 1.900 0.080 0.150 0.210 0.410 SOT-143 Surface Mount Package ...
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... SC-82 Surface Mount Package Richtek Technology Corporation Taipei Office (Marketing) 8F, No. 137, Lane 235, Paochiao Road, Hsintien City Taipei County, Taiwan, R.O.C. Tel: (8862)89191466 Fax: (8862)89191465 Email: marketing@richtek.com RT9817 H L Min Max 0.031 0.043 0.000 0.004 0.045 0.053 0.006 ...