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RT9818

Features: ` Internally Fixed Threshold 1.2V to 5V in 0.1V Step` High Accuracy ±1.5%` Low Supply Current 3A` No External Components Required` Quick Reset within 20s` Built-in Recovery Delay Include 0ms, 55ms, 220ms, 450ms Options` Low Functional Supply Voltage 0.9V` N-Channel Open-Drain Output` Sma...

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SeekIC No. : 004480027 Detail

RT9818: Features: ` Internally Fixed Threshold 1.2V to 5V in 0.1V Step` High Accuracy ±1.5%` Low Supply Current 3A` No External Components Required` Quick Reset within 20s` Built-in Recovery Delay Include 0...

RT9818 Data Sheet

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Part Number:
RT9818
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/26

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Product Details

Description



Features:

` Internally Fixed Threshold 1.2V to 5V in 0.1V Step
` High Accuracy ±1.5%
` Low Supply Current 3A
` No External Components Required
` Quick Reset within 20s
` Built-in Recovery Delay Include 0ms, 55ms, 220ms, 450ms Options
` Low Functional Supply Voltage 0.9V
` N-Channel Open-Drain Output
` Small SC-70-3, SC-70-4, SOT-23-3, SOT-23-5, SOT-89 Packages
` RoHS Compliant and 100% Lead (Pb)-Free




Application

` Computers
` Controllers
` Intelligent Instruments
` Critical P and C Power Monitoring
` Portable/Battery-Powered Equipment




Pinout

Connection Diagram




Specifications

` 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-70 ------------------------------------------------------------------------------------------- 0.25W
SOT-23-3 ---------------------------------------------------------------------------------------- 0.4W
SOT-23-5 ----------------------------------------------------------------------------------------- 0.4W
SOT-89 ------------------------------------------------------------------------------------------ 0.55W
` Package Thermal Resistance (Note 4)
SC-70, JA -----------------------------------------------------------------------------------400°C/W
SOT-23-3, JA -------------------------------------------------------------------------------250°C/W
SOT-23-5, JA -------------------------------------------------------------------------------250°C/W
SOT-89, JA ---------------------------------------------------------------------------------180°C/W
` 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




Description

The RT9818 is a micro-power voltage detector supervising the power supply voltage level for microprocessors (P) 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 3A. The RT9818 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. Once VDD recovered upcrossing the threshold level, the reset signal will be released after a certain delay time. RT9818 is provided in SC-70-3, SC-70-4, SOT-23-3, SOT-23-5 and SOT-89 packages.






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