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RT9816E-49PY Datasheet(PDF) 1 Page - Richtek Technology Corporation

Part # RT9816E-49PY
Description  Micro-Power Voltage Detectors with Manual Reset
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9816E-49PY Datasheet(HTML) 1 Page - Richtek Technology Corporation

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RT9816
1
DS9816-03
March 2007
www.richtek.com
Features
Internally Fixed Threshold 1.0V 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
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
Pin Configurations
Applications
Computers
Controllers
Intelligent Instruments
Critical
μP and μC Power Monitoring
Portable/Battery-Powered Equipment
Micro-Power Voltage Detectors with Manual Reset
Ordering Information
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 3
μA.
The RT9816 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. To pull reset signal
low manually, just pull the manual reset input (MR) below
the specified VIL level. RT9816 is provided in SC-82
package.
(TOP VIEW)
SC-82
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.
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.
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)
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
-
4
1
3
2
VDD
MR
GND
RESET/
RESET
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.


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