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RT9711A Datasheet(PDF) 1 Page - Richtek Technology Corporation |
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RT9711A Datasheet(HTML) 1 Page - Richtek Technology Corporation |
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1 / 9 page  RT9801A/B 1 DS9801AB-11 March 2007 www.richtek.com Pin Configurations User Programmable Micro-Power Voltage Detectors Ordering Information (TOP VIEW) SOT-23-6 General Description The RT9801A/B is a micro-power voltage detector supervising the power supply voltage level for microprocessors ( μP) or digital systems. It provides user programmable threshold levels with 0.1V step ranging from 1.5V to 5V, which covers most digital applications. It features low supply current of 3 μA. Selection of VTH is easily achieved through 3 pins connected to GND, VDD or floating for different threshold voltage settings. Two versions of threshold voltages, 1.5V to 4V and 2.5V to 5V, which are programmed in factory are offered by customer demands. The RT9801A/B performs supervisory function by sending out a reset signal whenever the VDD voltage falls below a preset threshold level. This reset signal will last the whole period before VDD recovering. Reset signal will release after VDD is recovered and last for the whole period of Reset Active Time-out period. RT9801A/B is N-Channel, open-drain output and provided in SOT-23-6 package. Features User Programmable Threshold 1.5V to 5V in 0.1V Step with ±±±±±3% Accuracy Low Supply Current 3 μμμμμA Quick Reset within 20 μμμμμs Built-in Recovery Delay 200ms Low Functional Supply Voltage 0.9V Small SOT-23-6 Package RoHS Compliant and 100% Lead (Pb)-Free Applications Computers Controllers Intelligent Instruments Critical μP and μC Power Monitoring Portable/Battery-Powered Equipment Marking Information For marking information, contact our sales representative directly or through a RichTek distributor located in your area, otherwise visit our website for detail. VSET0 GND RESET VSET1 VSET2 VDD 4 23 5 6 1 Note : There is no pin1 indicator on top mark for SOT-23-6 type, and pin 1 will be lower left pin when reading top mark from left to right. Note : RichTek Pb-free and Green products are : RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020. Suitable for use in SnPb or Pb-free soldering processes. 100%matte tin (Sn) plating. Typical Application Circuit VSET0 GND RESET VSET1 VSET2 VDD RT9801 GND RESET VDD μP Pull Up RT9801 V TH = 2.5V in this example RT9801 Package Type E : SOT-23-6 Operating Temperature Range P : Pb Free with Commercial Standard G : Green (Halogen Free with Commer- cial Standard) Reset Threshold A : 2.5V to 5V B : 1.5V to 4V |
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Similar Description - RT9711A |
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