Product Summary

The RT9818C is a micro-power voltage detector supervising the power supply voltage level for microprocessors (μP) or digital systems. The RT9818C provides internally fixed threshold levels with 0.1V per step ranging from 1.2V to 5V, which covers most digital applications. The RT9818C features low supply current of 3μA. The RT9818C 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. The RT9818C is provided in SC-82, SC-70-3, SOT-23-3, SOT-23-5 and SOT-89 packages.

Parametrics

RT9818C absolute maximum ratings: (1)Terminal Voltage (with Respect to GND), VDD: -0.3V to 6.0V; (2)All Other Inputs: -0.3V to VDD+0.; (3)Input Current, IVDD: 20mA; (4)Power Dissipation, PD: 0.25W; (5)Package Thermal Resistance, θJA: 400℃/W; (6)Lead Temperature (Soldering, 10sec.): 260℃; (7)Storage Temperature Range: -65 to 125℃; (8)z ESD Susceptibility, HBM (Human Body Mode): 2kV; MM (Machine Mode): 200V.

Features

RT9818C features: (1)Internally Fixed Threshold 1.2V to 5V in 0.1V Step; (2)High Accuracy ±1.5%; (3)Low Supply Current 3μA; (4)No External Components Required; (5)Quick Reset within 20μs; (6)Built-in Recovery Delay Include 0ms, 55ms, 220ms,450ms Options; (7)Low Functional Supply Voltage 0.9V; (8)N-Channel Open-Drain Output; (9)Small SC-82, SC-70-3, SOT-23-3, SOT-23-5, SOT-89 Packages; (10)RoHS Compliant and 100% Lead (Pb)-Free.

Diagrams

RT9818C functional block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
RT9818C-12GV
RT9818C-12GV


IC VOLT DETECTOR 1.2V SOT23-3

Data Sheet

0-9000: $0.06
RT9818C-15GV
RT9818C-15GV


IC VOLT DETECTOR 1.5V SOT23-3

Data Sheet

0-9000: $0.06
RT9818C-18GV
RT9818C-18GV


IC VOLT DETECTOR 1.8V SOT23-3

Data Sheet

0-9000: $0.06
RT9818C-20GV
RT9818C-20GV


IC VOLT DETECTOR 2.0V SOT23-3

Data Sheet

0-9000: $0.06
RT9818C-25GB
RT9818C-25GB


IC VOLT DETECTOR 2.5V SOT23-5

Data Sheet

0-9000: $0.06
RT9818C-25GV
RT9818C-25GV


IC VOLT DETECTOR 2.5V SOT23-3

Data Sheet

0-9000: $0.06
RT9818C-27GV
RT9818C-27GV


IC VOLT DETECTOR 2.7V SOT23-3

Data Sheet

0-9000: $0.06
RT9818C-27GVL
RT9818C-27GVL


IC VOLT DETECTOR 2.7V SOT23-3

Data Sheet

0-9000: $0.06