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RT9818C-36GVL

hotRT9818C-36GVL

RT9818C-36GVL

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Part Number RT9818C-36GVL
Manufacturer Richtek USA Inc.
Description IC VOLT DETECTOR 3.6V SOT23-3
Datasheet RT9818C-36GVL Datasheet
Package TO-236-3, SC-59, SOT-23-3
In Stock 18,000 piece(s)
Unit Price Request a Quote
Lead Time Can Ship Immediately
Estimated Delivery Time Jan 24 - Jan 29 (Choose Expedited Shipping)
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Part Number # RT9818C-36GVL (PMIC - Supervisors) is manufactured by Richtek USA Inc. and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

For RT9818C-36GVL specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add RT9818C-36GVL with quantity into BOM. Heisener.com does NOT require any registration to request a quote of RT9818C-36GVL.

RT9818C-36GVL Specifications

ManufacturerRichtek USA Inc.
CategoryIntegrated Circuits (ICs) - PMIC - Supervisors
Datasheet RT9818C-36GVLDatasheet
PackageTO-236-3, SC-59, SOT-23-3
Series-
TypeSimple Reset/Power-On Reset
Number of Voltages Monitored1
OutputOpen Drain or Open Collector
ResetActive Low
Reset Timeout143 ms Minimum
Voltage - Threshold3.6V
Operating Temperature-40°C ~ 85°C (TA)
Mounting TypeSurface Mount
Package / CaseTO-236-3, SC-59, SOT-23-3
Supplier Device PackageSOT-23-3L

RT9818C-36GVL Datasheet

Page 1

Page 2

RT9818 ® DS9818-10 May 2013 www.richtek.com 1 ©Copyright 2013 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Features Internally Fixed Threshold 1.2V to 5V in 0.1V Step High Accuracy ±1.5% Low Supply Current 3μA No External Components Required Quick Reset within 20μs Built-in Recovery Delay Include 0ms, 55ms, 220ms, 450ms Options Low Functional Supply Voltage 0.9V N-Channel Open-Drain Output Small SC-82, SC-70-3, SOT-23-3, SOT-23-5, SOT-89 Packages RoHS Compliant and 100% Lead (Pb)-Free Applications Computers Controllers Intelligent Instruments Critical μP and μC Power Monitoring Portable/Battery-Powered Equipment Micro-Power Voltage Detectors General Description The RT9818 is a micro-power voltage detector 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 3μA. 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-82, SC-70-3, SOT-23-3, SOT-23-5 and SOT-89 packages. Marking Information For marking information, contact our sales representative directly or through a Richtek distributor located in your area. Ordering Information Typical Application Circuit GND RESET/ RESET VDD RT9818 RESET/ RESET VDD μP Pull Up 100k RT9818 Package Type U3 : SC-70-3 V : SOT-23-3 VL : SOT-23-3 (L-Type) B : SOT-23-5 X : SOT-89 Y : SC-82 YR : SC-82 (R-Type) Lead Plating System P : Pb Free G : Green (Halogen Free and Pb Free) Threshold Voltage 12 : 1.2V 13 : 1.3V : 49 : 4.9V 50 : 5.0V - Reset Active Timeout Period A = 0ms (RESET) B = 55ms (RESET) C = 220ms (RESET) D = 450ms (RESET) E = 0ms (RESET) F = 55ms (RESET) G = 220ms (RESET) H = 450ms (RESET) Note : Richtek 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.

Page 3

RT9818 2 DS9818-10 May 2013www.richtek.com ©Copyright 2013 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Functional Pin Description Pin Name Pin Function GND Ground RESET Active Low Open-Drain Reset Output RESET Active High Open-Drain Reset Output VDD Power Pin Pin Configurations (TOP VIEW) SC-70-3 GND VDD 2 3 RESET/ RESET SOT-89SOT-23-5 VDD GND NC NC 4 2 3 5 RESET/ RESET SOT-23-3 (L-Type) GND VDD 2 3 RESET/ RESET SOT-23-3 GND VDD 2 3 RESET/ RESET SC-82 (R-Type) NC VDD GND 3 2 4 RESET/ RESET SC-82 GND NC VDD 3 2 4 RESET/ RESET 2 31 GNDVDDRESET/ RESET Function Block Diagram Timing Diagram Timer VSET Threshold Voltage Setting POR Power On Reset CMP N MOS GND RESET/ RESET VDD VTH VDD Delay Time (0, 55, 220, 450ms) Delay Time (0, 55, 220, 450ms) VRESET 0V 0V 0V VRESET

Page 4

RT9818 3 DS9818-10 May 2013 www.richtek.com ©Copyright 2013 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Absolute Maximum Ratings (Note 1) Terminal Voltage (with Respect to GND) VDD --------------------------------------------------------------------------------------------------------------------- −0.3V to 6V All Other Inputs ----------------------------------------------------------------------------------------------------- −0.3V to (VDD + 0.3V) Input Current, IVDD -------------------------------------------------------------------------------------------------- 20mA Power Dissipation, PD @ TA = 25°C SC-70 / SC-82------------------------------------------------------------------------------------------------------- 0.25W SOT-23-3 ------------------------------------------------------------------------------------------------------------- 0.4W SOT-23-5 ------------------------------------------------------------------------------------------------------------- 0.4W SOT-89 ---------------------------------------------------------------------------------------------------------------- 0.55W Package Thermal Resistance (Note 2) SC-70 / SC-82, θJA ------------------------------------------------------------------------------------------------- 400°C/W SOT-23-3, θJA -------------------------------------------------------------------------------------------------------- 250°C/W SOT-23-5, θJA -------------------------------------------------------------------------------------------------------- 250°C/W SOT-89, θJA ---------------------------------------------------------------------------------------------------------- 180°C/W Lead Temperature (Soldering, 10sec.) ------------------------------------------------------------------------- 260°C Storage Temperature Range ------------------------------------------------------------------------------------- −65°C to 150°C ESD Susceptibility (Note 3) HBM (Human Body Model) --------------------------------------------------------------------------------------- 2kV Electrical Characteristics (VDD = 3V, unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Operating VDD (VOUT) Range VDD 0.9 -- 6 V Supply Current IDD VTH = 3V, VDD = 4.5V, TA = 27°C -- 3 8 μA Reset Threshold VTH TA = 27°C -- 1.2 to 5 -- V Threshold Voltage Accuracy ΔVTH TA = 27°C −1.5 -- 1.5 % VDD Drop to Reset Delay tRD Drop = VTH −125mV -- 20 -- μs RT9818A/E -- 0 -- RT9818B/F 35 55 75 RT9818C/G 143 220 297 Reset Active Time Out Period RT9818D/H tRP VDD ≥ 1.02 x VTH 292 450 608 ms RESET Output Voltage Low (Note 5) VOL 3 = VDD < VTH ISINK > 3.5mA -- -- 0.4 V Hysteresis Width VHYS -- 0.01VTH 0.016VTH V Recommended Operating Conditions (Note 4) Junction Temperature Range------------------------------------------------------------------------------------- −40°C to 125°C Ambient Temperature Range------------------------------------------------------------------------------------- −40°C to 85°C

Page 5

RT9818 4 DS9818-10 May 2013www.richtek.com ©Copyright 2013 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Note 1. Stresses beyond those listed “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may affect device reliability. Note 2. θJA is measured at TA = 25°C on a low effective thermal conductivity single-layer test board per JEDEC 51-3. Note 3. Devices are ESD sensitive. Handling precaution is recommended. Note 4. The device is not guaranteed to function outside its operating conditions. Note 5. The voltage VOL can be calculated by VOL = VDD − Ir * R. Where R is the pull-up resistor and Ir is the current flowing through the pull-up resistor. For typical application (R=100kΩ), VOL is less than 0.2V.

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RT9818 5 DS9818-10 May 2013 www.richtek.com ©Copyright 2013 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Typical Operating Characteristics Supply Current vs. Input Voltage 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 1 2 3 4 5 6 Input Voltage (V) S u p p ly C u rr e n t ( μ A ) RT9818C-30 80°C 25°C −30°C Supply Current vs. Input Voltage 0 1 2 3 4 5 6 0 1 2 3 4 5 6 Input Voltage (V) S u p p ly C u rr e n t ( μ A ) 80°C 25°C −30°C RT9818A-12 Nch Driver Output Current vs. VDS 0 10 20 30 40 50 60 0 0.5 1 1.5 2 2.5 3 3.5 VDS (V) O u tp u t C u rr e n t ( m A ) VDD = 2V VDD = 1.5V RT9818C-30 VDD = 2.8V VDD = 2.5V Nch Driver Output Current vs. VDS 0.0 0.4 0.8 1.2 1.6 2.0 2.4 0 0.3 0.6 0.9 1.2 1.5 VDS (V) O u tp u t C u rr e n t ( m A ) VDD = 1V VDD = 1.1V RT9818A-12 Output Voltage vs. Input Voltage 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 Input Voltage (V) O u tp u t V o lta g e ( V ) 4.5V 1.2V RT9818 Nch Driver Output Current vs. VDS 0 20 40 60 80 100 120 0 1 2 3 4 5 VDS (V) O u tp u t C u rr e n t ( m A ) RT9818A-45 VDD = 4.4V = 4V = 3.5V = 3V = 2.5V = 2V = 1.5V

Page 7

RT9818 6 DS9818-10 May 2013www.richtek.com ©Copyright 2013 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Supply Current vs. Input Voltage 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 1 2 3 4 5 6 Input Voltage (V) S u p p ly C u rr e n t ( μ A ) RT9818A-45 80°C 25°C -30°C Power Down Reset Delay vs. Temperature 0 5 10 15 20 25 30 35 40 45 -50 -25 0 25 50 75 100 125 Temperature (°C) P o w e r D o w n R e se t D e la y (µ s) RT9818C-30 VDROP = 200mV VDROP = 150mV VDROP = 250mV Power Down Reset Delay vs. Temperature 0 2 4 6 8 10 12 14 -50 -25 0 25 50 75 100 125 Temperature (°C) P o w e r D o w n R e se t D e la y (µ s) RT9818A-12 VDROP = 200mV VDROP = 150mV VDROP = 250mV Power Down Reset Delay vs. Temperature 0 5 10 15 20 25 30 35 40 45 -50 -25 0 25 50 75 100 125 Temperature (°C) P o w e r D o w n R e se t D e la y (µ s) 1 RT9818A-45 VDROP = 200mV VDROP = 150mV VDROP = 250mV Reset Threshold Deviation vs. Temperature 1 2 3 4 5 6 -50 -25 0 25 50 75 100 125 Temperature (°C) R e se t T h re sh o ld ( V ) 4.5V 1.2V 4.2V 2.2V RT9818 5V Nch Driver Sink Current vs. Input Voltage 0 5 10 15 20 25 30 35 40 0 0.5 1 1.5 2 2.5 3 3.5 Input Voltage (V) S in k C u rr e n t I S IN K (m A ) RT9818C-30, VDS = 0.5V 80°C 25°C −30°C

Page 8

RT9818 7 DS9818-10 May 2013 www.richtek.com ©Copyright 2013 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Power Up Reset Time-Out vs. Temperature 0 20 40 60 80 100 -50 -25 0 25 50 75 100 125 Temperature (°C) P o w e r U p R e se t T im e -O u t ( µ s) VTH = 5V VTH = 4.5V RT9818A Output Delay Time vs. Load Capacitance 0.01 0.1 1 10 100 1000 0.0001 0.0010 0.0100 0.1000 1.0000 Load Capacitance (µF) O u tp u t D e la y T im e ( m s) VTH = 1.2V VTH = 4.5V RT9818 Nch Driver Output Current vs. Input Voltage 0 10 20 30 40 50 60 0 1 2 3 4 5 6 Input Voltage (V) N ch D riv e r O u tp u t C u rr e n t ( m A ) 1 RT9818G-31 VDS = 0.5V 80°C 25°C −30°C Nch Driver Output Current vs. VDS 0 20 40 60 80 100 120 140 160 0 1 2 3 4 5 6 VDS (V) N ch D riv e r O u tp u t C u rr e n t ( m A ) 1 VDD = 6V = 5.5V = 5V = 4.5V = 4V = 3.5V RT9818G-31 Power Up Reset Time-Out vs. Temperature 0 100 200 300 400 500 -50 -25 0 25 50 75 100 125 Temperature (°C) P o w e r U p R e se t T im e -O u t ( m s) VTH = 2.9V VTH = 3V RT9818C Nch Driver Sink Current vs. Input Voltage 0 10 20 30 40 50 0 1 2 3 4 5 Input Voltage (V) S in k C u rr e n t I S IN K (m A ) RT9818A-45, VDS = 0.5V 80°C 25°C −30°C

Page 9

RT9818 8 DS9818-10 May 2013www.richtek.com ©Copyright 2013 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Power Down Reset Time-Out vs. Temperature 0 100 200 300 400 500 -50 -25 0 25 50 75 100 125 Temperature (°C) P o w e r D o w n R e se t T im e -O u t ( m s) RT9818G-31 Power Down Reset Time-Out vs. Temperature 0 5 10 15 20 25 30 -50 -25 0 25 50 75 100 125 Temperature (°C) P o w e r D o w n R e se t T im e -O u t ( µ s) VDROP = 200mV VDROP = 150mV VDROP = 250mV RT9818G-31 Output Voltage vs. Input Voltage 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 Input Voltage (V) O u tp u t V o lta g e ( V ) RT9818G-31 Threshold Voltage vs. Temperature 2.00 2.05 2.10 2.15 2.20 2.25 2.30 2.35 2.40 -50 -25 0 25 50 75 100 125 Temperature (°C) T h re sh o ld V o lta g e ( V ) 1 Rising Falling RT9818C-22 Threshold Voltage vs. Temperature 4.00 4.05 4.10 4.15 4.20 4.25 4.30 4.35 4.40 -50 -25 0 25 50 75 100 125 Temperature (°C) T h re sh o ld V o lta g e ( V ) 1 Rising Falling RT9818A-42

Page 10

RT9818 9 DS9818-10 May 2013 www.richtek.com ©Copyright 2013 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Application Information Multiple Supplies Mainly, the pull-up connected to the RT9818 will connect to the supply voltage that is being monitored at the IC's VDD pin. However, some systems may use the open- drain output to level-shift from the monitored supply to reset circuitry powered by some other supply. 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.

RT9818C-36GVL Reviews

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Alo***** Tran

December 27, 2021

Sure appreciate your quality, expertise and professional service. Thank you so much!!!

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December 24, 2020

What can I say, great value for the money. I only needed 2 but now I have some spares for future projects. They got the job done, nothing more I can say.

Ale*****Yogi

December 21, 2020

I wanted something that would handle voltage spikes. Worked perfectly. I plan to use four more.

Heat*****ttman

December 14, 2020

I took the chance and used it and I worked fine for me.

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December 10, 2020

I enjoy doing business with Heisener, please keep up the GREAT Service!

Fran*****Long

December 7, 2020

Very Quick,no problems - Thank you.

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