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RT9818G-13GV Datasheet(PDF) 1 Page - Richtek Technology Corporation

Part # RT9818G-13GV
Description  Micro-Power Voltage Detectors
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9818G-13GV Datasheet(HTML) 1 Page - Richtek Technology Corporation

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RT9818
®
DS9818-11 August 2016
www.richtek.com
1
©
Copyright 2016 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 3
μμμμμA
No External Components Required
Quick Reset within 20
μμμμμs
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 3
μA. 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
P
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.


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