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RT9816B-13GY

Description
Micro-Power Voltage Detectors with Manual Reset
File Size116KB,10 Pages
ManufacturerRichtek Technology Corporation
Websitehttps://www.richtek.com/
Download Datasheet View All

RT9816B-13GY Overview

Micro-Power Voltage Detectors with Manual Reset

RT9816
Micro-Power Voltage Detectors with Manual Reset
General Description
The RT9816 is a micro-power voltage detector with
deglitched manual reset input 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 1.0V to 5V, which covers most
digital applications. It features low supply current of 3μA.
The RT9816 performs supervisory function by sending
out a reset signal whenever the V
DD
voltage falls below a
preset threshold level. This reset signal will last the whole
period before V
DD
recovering. Once V
DD
recovered
upcrossing the threshold level, the reset signal will be
released after a certain delay time. To pull reset signal
low manually, just pull the manual reset input (MR) below
the specified V
IL
level. RT9816 is provided in
SC-82
package.
Features
Internally Fixed Threshold 1.0V to 5V in 0.1V Step
High Accuracy
±
1.5%
Low Supply Current 3μA
μ
No External Components Required
Quick Reset within 20μs
μ
Built-in Recovery Delay Include 0ms, 55ms, 220ms,
450ms Options
800ns Glitch Immunity of Manual Reset Input
Low Functional Supply Voltage 0.9V
N-Channel Open-Drain Output,
Small SC-82 Package
RoHS Compliant and 100% Lead (Pb)-Free
Applications
Computers
Controllers
Intelligent Instruments
Critical
μP
and
μC
Power Monitoring
Portable/Battery-Powered Equipment
Ordering Information
RT9816
-
Package Type
Y : SC-82
Operating Temperature Range
C : Commercial Standard
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
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 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.
DS9816-03 March 2007
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.
Pin Configurations
(TOP VIEW)
VDD
4
1
GND
MR
3
2
RESET/
RESET
SC-82
Note
: There is no pin1 indicator on top mark for SC-82 type,
and pin 1 will be lower left pin when reading top mark from
left to right. Pin2 of SC-82 is wider than other pins.
www.richtek.com
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